Bruh can someone please help me

Based on the given information, we can assume that the survey has a 95% confidence level, which means that the margin of error can be calculated using the formula:

Margin of Error = (maximum difference in percentage points / 2)

The maximum difference in percentage points between the two candidates is 53% - 47% = 6%. Dividing this by 2 gives us a margin of error of 3%. Therefore, we can say that the results of the phone survey indicate that between 44% and 56% of voters may choose candidate a over candidate b (with a margin of error of +/- 3%).

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Answer:

Step-by-step explanation:

This is a trick question,  about the red marks again.   those marks are important b/c they tell you that the lengths are the same, so that the angles MUST also be the same.  That is  ,  D and E are equal

so set up your equations with that info

180 = 84 +2p

now use your algebra skillz to solve

180-84 / 2 = p

96/2 = p

48 = p

see??

When we decompose the given function y = V2x⁴+1 in the form y = f(u) and u = g(x), then y = V(u - 1) and u = 2x⁴ + 1

To decompose the given function y = V2x4 + 1 in the form y = f(u) and u = g(x), we can use the substitution method. We start by expressing u as a function of x, which is given as g(x) = 2x4 + 1. Then, we substitute this expression for u into the original function for y.

First, we can rearrange g(x) to obtain

u = 2x^4 + 1

Then, we can substitute this expression for u into the original function for y

y = V2x^4 + 1

y = V(u - 1)

Thus, we can express y as a function of u

f(u) = V(u - 1)

And we can express u as a function of x

g(x) = 2x^4 + 1

Therefore, the answer is

y = V(u - 1)

u = 2x^4 + 1

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The number 70 represents the estimated slope coefficient. If the t-test statistic for the slope is 3.3, it means the slope coefficient is different from zero. A p-value of 0.008 for the slope indicates a low probability of observing a t-test statistic.

a. The interpretation of 70 in the estimated simple linear regression equation Y = 8 + 70X is that it represents the estimated slope coefficient. In this context, for every unit increase in X, we would expect Y to increase by 70 units. It indicates the rate of change in Y for a one-unit increase in X.

b. When the t-test statistic for the estimated equation slope is 3.3, it means that the estimated slope coefficient is significantly different from zero. The t-test statistic measures the ratio of the estimated slope coefficient to its standard error.

A t-test statistic of 3.3 suggests that the estimated slope coefficient is 3.3 standard errors away from zero. The larger the t-value, the more evidence we have against the null hypothesis that the slope coefficient is zero.

c. If the p-value (sig) for the estimated equation slope is 0.008, it means that the probability of observing a t-test statistic as extreme as 3.3 (or even more extreme) under the assumption that the true slope coefficient is zero is 0.008.

Generally, if the p-value is below a pre-defined significance level (e.g., 0.05), it provides evidence to reject the null hypothesis. In this case, since the p-value is 0.008, which is less than 0.05, we have sufficient evidence to reject the null hypothesis and conclude that the estimated slope coefficient is statistically significant.

In conclusion, the interpretation of 70 as the slope coefficient implies that for every one-unit increase in X, Y is expected to increase by 70 units. The t-test statistic of 3.3 indicates that the estimated slope coefficient is significantly different from zero.

The low p-value of 0.008 further supports the conclusion that the estimated slope coefficient is statistically significant, providing evidence against the null hypothesis.

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After sοlving the inequality, we came tο the cοnclusiοn as fοllοws:

x≤ 5; Lisa can buy 5 pοunds οr less οf tοmatοes.

In Algebra, an inequality is a mathematical statement that uses the inequality symbοl tο illustrate the relatiοnship between twο expressiοns. An inequality symbοl has nοn-equal expressiοns οn bοth sides. It indicates that the phrase οn the left shοuld be bigger οr smaller than the expressiοn οn the right, οr vice versa.

Literal inequalities are relatiοnships between twο algebraic expressiοns that are expressed using inequality symbοls. Less than (οr less than οr equal tο), greater than (οr greater than οr equal tο), οr nοt equal tο signs are used in place οf the equal sign.

Given,

The tοtal amοunt οf mοney present = $7.80

The cοst οf tοmatοes per pοund = $1.20

The cοst οf a lοaf οf bread = $1.80

Given the inequality in this situatiοn,

1.20x + 1.80 ≤ 7.80

where x = pοunds οf tοmatοes

Sοlving inequality,

1.20x + 1.80 ≤ 7.80

1.20x ≤ 7.80 - 1.80

1.20x ≤ 6

x ≤  6/1.2

x ≤  5

Therefοre after sοlving the inequality, we came tο the cοnclusiοn as fοllοws:

x≤ 5; Lisa can buy 5 pοunds οr less οf tοmatοes.

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Box B has the smaller range of masses, with a range of 49 grams, compared to Box A's range of 97,649 grams.

The question asks which of the boxes has the smaller range of masses and what is the value of this range in grams (g).
To find the range, we need to subtract the smallest value from the largest value in each box.
In Box A, the smallest value is 4 and the largest value is 97653. So, the range in Box A is 97653 - 4 = 97649 g.
In Box B, the smallest value is 2 and the largest value is 8762. However, we are given that key 35 represents a mass of 53 g and key 51 represents a mass of 51 g. So, the actual largest value in Box B is 51. Therefore, the range in Box B is 51 - 2 = 49 g.
Comparing the ranges, we can see that the range in Box B (49 g) is smaller than the range in Box A (97649 g).

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Step-by-step explanation:

It is assumed EF and CB are parallel.

The triangles ACB and AEF are similar by SAS as:

Confirm if corresponding sides have same ratios:

Confirmed

Answer:

y=12

x=30

Step-by-step explanation:

2x-3y=24 ... 1

x+6y=18 ... 2

2*2:

2x+12y=36...3

3-1:

y=12

x=30

When the following system of equations 2x - 3y = -24 and x + 6y = 18 are solved, the value of x and y is found to be -6 and -4 respectively.

Mathematically, an equation is a statement that asserts the equivalency of two expressions. It consists of two hands, the left-hand side( LHS) and the right-hand side( RHS), separated by an equal sign( =). The LHS and RHS can be numbers, variables, constants, or further complex fine expressions.

Given the system of equations:

2x - 3y = -24 (equation1)

x + 6y = 18 (equation2)

From equation 2,

x = 18 - 6y

Now, substitute this expression for x in equation (1):

2(18 - 6y) - 3y = -24

36 - 12y - 3y = -24

36 - 15y = -24

-15y = -60

y = \(\frac{(-60)}{(-15)}\)

y = 4.

Now substitute it back into equation (2) to solve for x:

x + 6(4) = 18

x + 24 = 18

x = 18 - 24

x = -6

Therefore, the solution to the system of equations is x = -6 and y = 4.

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Not factorable

given

Step 1

given

use the quadratic formuña

it says

so

If Δ=0 then ax2+bx+c is a perfect square trinomial, expressible as

(√ax+√c)2 or as (√ax−√c)2 .

If Δ<0 then ax2+bx+c has two distinct Complex zeros and is not factorable over the reals. It is factorable if you allow Complex coefficients

then, as

the expression has two distinct Real zeros and is factorable over the Reals

so,

the expression has real solution ,so

Not factorable

I hope this helps you

Answer:

Step-by-step explanation:

Arrange the data set in ascending order. then find the median.

Data in ascending order:

2,  5 , 6 , 7 , 8 , 11 , 15

Median = 7

Lower quartile:

Then  again find the median of the numbers from the first to the number before the median. This is the lower quartile.

2 , 5, 6

Median = 5  ----> this  is the lower quartile.

Upper quartile:

Then  again find the median of the numbers that comes after the median to the end of the data set. This is the upper quartile.

8 , 11 , 15

Median = 11 ------> is the upper quatile

Yes, It is necessary to rename 4(1/4) to 3(2/4) when 3/4 is subtracted with 4(1/4).

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

4(1/4) - 3/4

= 17/4 - 3/4

= (17 - 3) / 4

= 14 / 4

= 3(2/4) or 3(1/2)

Thus,

We can rename 4(1/4) to 3(2/4).

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The complete question:

Explain Why It Is Necessary To Rename 4 1/4 If You Subtract 3/4 From It?

Answer:

option 3rd is the correct one

The equations for the circle traced out counterclockwise as t goes from 0 to 2π are:

x = 3 + 4 * cos(t)

y = 2 + 4 * sin(t)

(a) To find the straight line segment traced from (3,2) to (5,8) as t goes from 0 to 1, we can use the parameterization formula for a line segment:

x = x₀ + (x₁ - x₀) * t

y = y₀ + (y₁ - y₀) * t

where (x₀, y₀) and (x₁, y₁) are the coordinates of the starting and ending points, respectively.

For the given points (3,2) and (5,8), we have:

x₀ = 3, y₀ = 2

x₁ = 5, y₁ = 8

Plugging these values into the parameterization formula, we get:

x = 3 + (5 - 3) * t = 3 + 2t

y = 2 + (8 - 2) * t = 2 + 6t

So, the equations for the straight line segment traced as t goes from 0 to 1 are:

x = 3 + 2t

y = 2 + 6t

(b) To find the circle centered at (3,2) with a radius of 4, traced out counterclockwise as t goes from 0 to 2π (a full revolution), we can use the parameterization formula for a circle:

x = cx + r * cos(t)

y = cy + r * sin(t)

where (cx, cy) are the coordinates of the center and r is the radius.

For the given center (3,2) and radius 4, we have:

cx = 3, cy = 2

r = 4

Plugging these values into the parameterization formula, we get:

x = 3 + 4 * cos(t)

y = 2 + 4 * sin(t)

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Triangle KVM is similar to triangle BVG because angle M = angle G = 90° and angle V is common to both triangles.

Two triangles are similar if the angles are the same size or the corresponding sides are in the same ratio.

For two triangles to be similar, the corresponding angles must be congruent i.e equal.. Also the ratio of the corresponding sides of similar triangles are equal.

angle M and G are both 90° , this means they are equal.

angle KVM = BVG

therefore angle K = angle B

Since all the corresponding angles are equal, we can say triangle KVM is similar to triangle BVG

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Answer:

the actual answer is 750

Step-by-step explanation:

but the correct order in this scenario is doing

parenthesis (2+3)

exponents 5³

multiplication 6×5³

Answer:

40 papers

Step-by-step explanation:

6 x 10 = 60

100- 60 = 40

Answer:

9.4

Step-by-step explanation:

a2+b2=c2

8^2 + 5^2 = c2

64 + 25 = 89

square root of 89 = 9.4

The expected value of this gamble is $1.

The expected value of this gamble is the weighted average of all possible outcomes where the weights are the probabilities of each outcome happening.

The formula for expected value (EV) is as follows:

          Expected Value = (Probability of Winning × Amount Won) − (Probability of Losing × Amount Lost)

Hence, substituting the values:

          Expected Value = (0.5 × $10) − (0.5 × $8)

          Expected Value = $5 - $4

          Expected Value = $1

Therefore, the expected value of this gamble is $1.

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Answer:

C

Step-by-step explanation:

f is neither even nor odd

we know the complex number has standard form a+ib

Inorder to find our answer ib^2 should.be 1

Ex:-

2-i

2:-

\(\\ \sf\longmapsto 2+2i^2\)

2 + i^2 = 1. also i^4 = 1

3 + i^2 = 2 also 2i^4 = 2

4 + i^2 = 3 also 3i^4 = 3

the complex series has a form Z = a + ib, where a is the real number and ib is the imaginary part.

we know i = √-1 so i^2 = -1 and (i^2)^2 = (-1)^2 = 1. or i^4 = 1.

also,

2 + i^2 = 1. since i^2 = -1, 2 + -1 = 2-1 = 1.

if we want to find 2,

3 + i^2 = 2. since we know i^2 will be -1, set the a value to be 1 more the value you need. for example if you want 3, set a to be 4.

for 3.

first make a to be 1 more than 3 which is 4.

3 = 4 + i^2.

Answer:

-2x-14

Step-by-step explanation:

Answer:

-2x - 14

Step-by-step explanation:

2(3x - 1) - 4(2x + 3) =

6x - 2 - 8x - 12 =

-2x - 14

To prove that 3x ≤ y, assume the opposite, that is, 3x > y, rearrange the inequality substitute x < 2y and simplify, contradict the given condition that x < 2y, therefore, concluding that 3x ≤ y.

Start by assuming the opposite, that is, 3x > y.

From the given inequality,\(7xy \leq 3x^2 + 2y^2,\), we can rearrange to get:
\(7xy - 3x^2 \leq 2y^2\)

We can substitute \(x < 2y\) into this inequality:
\(7(2y)x - 3(2y)^2 \leq 2y^2\)

Simplifying, we get:
\(y(14x - 12y) \leq 0\)

Since y is a real number, this means that either y ≤ 0 or 14x - 12y ≤ 0.

If y ≤ 0, then 3x ≤ y is trivially true.

If 14x - 12y ≤ 0, then we can rearrange to get:
3x ≤ (12/14)y
3x ≤ (6/7)y
3x < y (since we assumed 3x > y)

But this contradicts the given condition that x < 2y, so our assumption that 3x > y must be false.

Therefore, we can conclude that 3x ≤ y.

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Hey !

a) Work out the area of the rectangle

Area of the rectangle is calculated by Length × width

According to the given diagram

Length of the rectangle = 10 cm

width of the rectangle = 5 cm.

Substituting the values of length and width in above formula.

Area = 10 × 5

Area = 50 cm².

B) Work out the area of the triangle.

Area of triangle is calculated by:

Area of triangle = ½ × Base × Height

According to the given figure,

Base of triangle = 4 cm

Height of triangle= 5 cm

Substituting the values we base and Height in the above formula we get

Area of triangle = ½ × 4 × 5

Area of triangle = 2 × 5

Area of triangle = 10 cm²

c) Work out the area of the whole shape

Area of whole shape = Area of rectangle+ Area of triangle

= 50 cm² + 10 cm²

= 60 cm²

Answer:

a) 70 cm²

b) 10 cm²

c) 80 cm²

Step-by-step explanation:

The shape which is made from a triangle and a rectangle.

a) The area of the rectangle.

Formula :

Area of rectangle = Length × Breadth

Here,

From the given figure we can see that Length of rectangle is 10 cm and breadth of the rectangle is 7 cm

Plugging the values in formula ,

Area = 10 × 7

Area = 70 cm²

\(\therefore \underline{\red{ \sf The \: area \: of \: rectangle \: is \: 70 \: {cm}^{2}}} \)

b) The area of triangle

Formula :

Area of triangle = 1/2bh

Here,

Form the given figure we can see that base of 4 cm and height is 5 cm

Plugging the values in formula ,

Area = 1/2 × 4 × 5

Area = 10 cm².

\( \therefore \underline{\red {\sf The \: area \: of \: triangle \: is \: 10 \: {cm}^{2}}}.\)

c) the area of the whole shape

Since The shape is made from a triangle and a rectangle so the area of whole shape will be the sum of both the areas of rectangle and triangle.

Area of the whole shape = Area of rectangle + area of triangle

Area of whole shape = 70 + 10

Area of whole shape = 80 cm²

\(\therefore \underline{\red { \sf The \: area \: of \: whole \: shape \: is \: 80 \: {cm}^{2}}}\)

Answer:

n= -49.6

Step-by-step explanation:

49.6 i did this test and got it right

Answer:

Hello! answer:

rectangle a: 8

rectangle b: 24

figure: 32

Step-by-step explanation:

Hello I'll show a demonstration, with a picture and explanation. Ok so as shown in the picture i circled the base and height those are basically what you have to multiply to find the area.

we are given the height for rectangle a but not the base so we have to find it we know the base at the bottom for the whole thing is 5 and the base for B is. 3 so we can just subtract 3 from 5 to find A's base so... 5 - 3 = 2

now we have everything we need to find the area so....

4 × 2 = 8 so rectangle a is 8

3 × 8 = 24 so rectangle b is 24

then for the whole figure we can just add those two up for the entire area so...

24 + 8 = 32 therefore the figures area is 32 Hope that helps!

Lisa's percentile rank is approximately 7.857%.

To calculate Lisa's percentile rank, you can use the formula:

Percentile Rank = (Number of scores less than Lisa's score / Total number of scores) * 100

In this case, Lisa's score is 86, and it is the 23rd score from the top in a class of 280 scores. Therefore, the number of scores less than Lisa's score is 23 - 1 = 22 (excluding Lisa's score itself).

Substituting the values into the formula:

Percentile Rank = (22 / 280) * 100 ≈ 7.857%

Lisa's percentile rank is approximately 7.857%.

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Answer:

w=24

Step-by-step explanation:

w-9=15

w=15+9

w=24

Answer:

24 1/2

Step-by-step explanation:

just did  

Answer:

Step-by-step explanation:

The measure of the ​angles are 51° and 39°.

When the sum of two angles is equal to 90 degrees, they are called complementary angles. For example, 30 degrees and 60 degrees are complementary angles.

Given:

Two pieces of wood are cut to form complementary angles.

One angle needs to be (2x +23) and the other angle needs to be (3x +27).

We have to find the measure of the larger angle?.

According to given question we have

Two angles are complementary when their sum is equal to 90°.

So, ( 2x + 23 ) + ( 3x + 27 ) = 90°

5x + 50° = 90°

5x=40°

x = 8°

Putting value of x in the angles given :

( 2x + 23 )° = 2(8°) + 23° = 39°.

( 3x +27 )° = 3(8°) +27° = 51°.

Therefore, the measure of the ​angles are 51° and 39°.

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