Answers
Answer:
the answer is b
Step-by-step explanation:
\(2x - y = \\ 2 \times 5 - ( - 2) = 10 + 2 = 12\)
Related Questions
BRAINLIEST!!!! URGENT!!!! 3⁴ + 2 · 5 = ____.
Answers
Answer:
70
Step-by-step explanation:
I think the answer is 70 because of these steps :
1) 3 * 4 = 12
2) 12 + 2 = 14
3) 14 * 5 = 70
6x-12=78 solve the 2 step equation and check the soultion
Answers
Answer:
Answer: x is 15
Step-by-step explanation:
\({ \tt{6x - 12 = 78}}\)
» Apply the addition rule of equality by adding 12 on either sides:
\({ \tt{(6x - 12) + { \green{12}} = 78 + { \green{12}}}} \\ { \tt{6x = 90}}\)
» Apply the division rule of equality by dividing either sides by 6
\({ \tt{ \frac{6x}{{ \blue{6}}} = \frac{90}{{ \blue{6}}} }} \\ \\ { \tt{x = \frac{90}{6} }} \\ \\ { \underline{ \tt{ \: \: x = 15 \: \: }}}\)
• Checking the solution :
\({ \tt{6x - 12 = 78}}\)
» Substitute x with its value (15) in the equation:
\({ \tt{6(15) - 12 = 78}} \\ { \tt{90 - 12 = 78}} \\ { \boxed{ \tt{ \: 78 = 78 \: }}}\)
• Since the left hand side is equal to the right hand side, the value of x is consistent.
Somebody else has to comment for me to Mark u as BRAINLIEST!! It won't let me
Answers
Answer:
7.5 is the difference
Step-by-step explanation:
basketball mean
(13+22+23+24+36+37+42+43+58+69) ÷10 = 36.7
tennis mean
(14+23+24+38+47+48+57+58+66+67) ÷10 = 44.2
tennis mean - basketball mean
44.2 - 36.7= 7.5
how many solutions does this linear system of equations have
-3x+y=4
9x-3y=-12
Answers
The image of B translated using (x + 2, y + 3) would have what coordinates?
Answers
Answer:
(5, 4)
Step-by-step explanation:
(x + 2, y + 3)
Substitute x and y for that of B's position.(3 + 2, 1 + 3)
(5, 4)
Answer:
B' (5, 4 )
Step-by-step explanation:
the translation rule (x, y ) → (x + 2, y + 3 )
means add 2 to the original x- coordinate and add 3 to the original y- coordinate , then
B (3, 1 ) → B' (3 + 2, 1 + 3 ) → B' (5, 4 )
Find theta in radians
Answers
Answer:
0.4636 radians
Step-by-step explanation:
To find theta in radians, we need to use the inverse tangent function, also known as arctangent. From the right triangle in the image, we have:
tangent(theta) = opposite/adjacent = 10/20 = 1/2
Taking the inverse tangent of both sides, we get:
theta = arctan(1/2)
Using a calculator or a trigonometric table, we find:
theta ≈ 0.4636 radians
Therefore, theta is approximately 0.4636 radians
You wish to test the following at a significance level of
.
You obtain a sample of size
in which there are 106 successful observations.
For this test, we use the normal distribution as an approximation for the binomial distribution.
For this sample...
The test statistic (
) for the data =
(Please show your answer to three decimal places.)
The p-value for the sample =
(Please show your answer to four decimal places.)
The p-value is...
greater than
less than (or equal to)
(Recall that when p(-value) is low, the null must go; when p(-value) is high, the null must fly)
Base on this, we should ....
fail to reject the null hypothesis
accept the null hypothesis
reject the null hypothesis
As such, the final conclusion is that...
The sample data suggest that the population proportion is significantly greater than 0.59 at the significant level of
= 0.01.
The sample data suggest that the population proportion is not significantly greater than 0.59 at the significant level of
= 0.01
Answers
The sample data suggest that the population proportion is not significantly greater than 0.59 at the significant level of 0.01.
How to explain the sampleIn this case, the test statistic is calculated as follows:
z = (106/150 - 0.59) / sqrt(0.59(1-0.59)/150)
= 1.55
The p-value is calculated as the area under the standard normal curve to the right of the test statistic. In this case, the p-value is calculated as follows:
p-value = p(Z > 1.55)
= 0.123
Since the p-value is greater than the significance level of 0.01, we fail to reject the null hypothesis. Therefore, we cannot conclude that the population proportion is significantly greater than 0.59 at the significant level of 0.01.
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26. State the quadrant in which the point (-3,2) lies.
A. Quadrant
C. Quadrant III
B. Quadrant II
D. Quadrant IV
Answers
Answer:
B. Quadrant II
Use this:
Quadrant 1 (+,+)
Quadrant 2 (-,+)
Quadrant 3 (-,-)
Quadrant 4 (+,-)
Hoped this helped
answer quickly pls pls pls
Answers
divide the exponent by 2
(C)
What is the range of f(x) = sin(x)?
the set of all real numbers -2pi≤y≤2pi
the set of all real numbers -1≤y≤1
the set of all real numbers 0≤y≤2pi
the set of all real numbers
Answers
Answer:
the set of all real numbers -1≤y≤1
Step-by-step explanation:
according to the definition of 'sin'-function, the max value of it is '+1' and the min is '-1'. Finally, the correct answer is B. the set of all real numbers -1≤y≤+1.
Which of the sets of ordered pairs represents a function? (4 points)
A = {(−4, 5), (1, −1), (2, −2), (2, 3)}
B = {(2, 2), (3, −2), (9, 3), (9, −3)}
a
Only A
b
Only B
c
Both A and B
d
Neither A nor B
Answers
Answer: D, neither A nor B
Step-by-step explanation: In a function, the x (the input) cannot repeat in the given set of ordered pairs. In Set A, 2 repeats in the third and fourth ordered pairs. In Set B, 9 repeats in the third and fourth ordered pairs as well.
Answer: B
Step-by-step explanation:
Functions and Relations
A relation is just a set of ordered pairs (x,y) . In formal mathematical language, a function is a relation for which: if (x1,y) and (x2,y) are both in the relation, then x1=x2 . This just says that in a function, you can't have two ordered pairs with the same x -value but different y -values.
Identify the proof to show that △ABD≅△CBD
, where ∠BDA≅∠BDC
are right angles, D
is the midpoint of AC¯¯¯¯¯
, AB¯¯¯¯¯≅BC¯¯¯¯¯
, and BD¯¯¯¯¯
bisects ∠B
.
The figure shows two triangles A B D and C B D with a common side B D. Points A, D, C lie on one line.
Answers
We have proven that △ABD ≅ △CBD based on the given information and the SAS congruence criterion.
To prove that △ABD ≅ △CBD, we can use the SAS (Side-Angle-Side) congruence criterion.
Given:
∠BDA ≅ ∠BDC (Both are right angles)
D is the midpoint of AC¯¯¯¯¯
AB¯¯¯¯¯ ≅ BC¯¯¯¯¯
BD¯¯¯¯¯ bisects ∠B
Proof:
Since D is the midpoint of AC¯¯¯¯¯, we have AD ≅ CD by the definition of a midpoint.
AB¯¯¯¯¯ ≅ BC¯¯¯¯¯ (Given)
BD¯¯¯¯¯ is a common side for both triangles.
∠BDA ≅ ∠BDC (Given)
To apply the SAS congruence criterion, we need to show that one pair of corresponding sides and the included angle are congruent in both triangles.
AD ≅ CD (Side) - This is true as D is the midpoint of AC¯¯¯¯¯.
∠BDA ≅ ∠BDC (Included Angle) - Both are right angles.
By the SAS congruence criterion, we can conclude that △ABD ≅ △CBD.
Therefore, we have proven that △ABD ≅ △CBD based on the given information and the SAS congruence criterion.
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Please help I’ll give brainliest to whoever answers first! In the coordinate plane below, the x-axis represents the number of days after today, and the y-axis represents the temperature forecast in degrees Celsius. The points (3,7) (3,−3) represent the high and low temperature forecasts of the same day. What is the difference between the high and the low temperature forecasts?
Answers
vario was scuba diving at an elevation of −20 feet and then descended 20 feet more.
Dario and another person scuba diving. The other person is diving at negative thirty feet.
A number line from negative fifty to fifty by tens is shown.
After the descent, what was his elevation in relation to another diver at an elevation of −30 feet?
Enter the correct answers in the boxes.
Equation: $$
Relative elevation:
ft
Answers
Answer:
70 feet
Step-by-step explanation:
Brainliest Answer:Pls
Hayley is 5 feet 5 inches tall. What is this in metres to the nearest centimetre?
Use the conversion 1 foot = 30 cm and 1 inch = 2.5 cm.
Answers
Answer:
5 feet 5 inches = 162.5 centimeters
Step-by-step explanation:
5 x 30 = 150
5 x 2.5 = 12.5
150 + 12.5 = 162.5
Answer:
162.5
Step-by-step explanation:
hope this helps you out
pls give me the brainly thing
Triangles & Trigonometry
Answers
Answer:
Answer: x = y = 2√7
Step-by-step explanation:
x = (2√14)cos45
x = (2√14)½√2
x = √14(√2) = √28 = 2√7
y = (2√14)sin45
y = (2√14)½√2
y = √14(√2) = √28 = 2√7
e County Public Schools Home - Student Portal Solving Linear Equations - Quiz - Level H Question 1 >> Solve the equation. 8(4- x) = 7x + 2 XE
Answers
Answer:
The solution to the equation is;
\(x=2\)Explanation:
Given the equation;
\(8(4-x)=7x+2\)To solve, let us expand the bracket and collect the like terms;
\(\begin{gathered} 8(4-x)=7x+2 \\ 8(4)-8(x)=7x+2 \\ 32-8x=7x+2 \\ \text{collecting like terms;} \\ 32-2=7x+8x \\ 30=15x \\ \text{divide both sides by 15;} \\ x=\frac{30}{15} \\ x=2 \end{gathered}\)Therefore, the solution to the equation is;
\(x=2\)
tuana gave half of her marbles away. if she gave some to her sister and twice as many to her brother, and had 6 marbles left, how many marbles did she give her brother?
Answers
Graph your salary and
Answers
A graph of the exponential function \(f(n)=37000(1.06)^n\) is shown in the image attached below.
How to write and graph an exponential function?In Mathematics and Geometry, an exponential function can be modeled by using this mathematical equation:
\(f(x)=a(b)^x\)
Where:
a represents the initial value or y-intercept.x represents x-variable.b represents the rate of change or common ratio.Based on the information provided above, your salary can be modeled or represented by the following exponential function;
\(f(n)=37000(1.06)^n\)
Lastly, we would use an online graphing calculator to plot the given exponential function as shown in the graph attached below.
In conclusion, the rate of change of this exponential function is equal to 1.06.
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A speaker is in the shape of a cube with an edge length of 3.5 inches. The speaker is sold in a package in the shape of
square prism with a base area of 16 square inches and a height of 4 25 inches
Part B What is the surface area, in square inches, of the package?
Answers
Answer:
I think it would be 6800 square in because you just have to multiply 16 by 425.... Sorry if it is wrong
Step-by-step explanation:
28. On a trip of 320 miles, Sunao's truck averaged 9.2 miles per
gallon. At the same rate, how much gasoline would his truck
use on a trip of 440 miles?
Answers
squares rectangles and rhombl are types of trapezoids true or false
Answers
Answer:
false
Step-by-step explanation:
3(x - 4) + 5x simplify the expression
Answers
Answer:
3(x - 4) + 5x can be simplified to 8x - 12.
Answer: 8x - 12
Step-by-step explanation:
3(x - 4) + 5x
distribute = 3x - 12 + 5x
simplify = 8x - 12
Sushil, Alex and Peter share some sweets in the ratio 3:2:5. Sushil gets 24 sweets. How many sweets are there altogether?
Answers
Answer:
80 sweetsStep-by-step explanation:
\(Sushil: Alex: Peter\\\:3\:\:\:\:\:\:\: \:\:\:\::\:\:2\:\:\:\:\::\:5\\\\Sushil = 24 \:sweets\)
Let the total number of sweets be x
\(3+2+5 =10\\\\=\frac{3}{10} \times x =24\\\\\frac{3x}{10} =\frac{24}{1} \\\\Cross\:Multiply\\\\3x\times 1 = 24\times 10\\\\3x = 240\)
Divide both sides of the equation by 3
\(\frac{3x}{3} = \frac{240}{3} \\\\x =80\:sweets\)
3x - 2y =-16
x =-y -7
WITH A SOLUTION PLS
Answers
using the least-squares regression line, calculate the predicted value and residual value for the data point where the non-native grass biomass is equal to 35 and the coastal sage scrub biomass is equal to 20. give your answers precise to three decimal places.
Answers
By using the least-squares regression line the equation will be y = 1.518x + 0.305.
Let us find the value of slope and y-intercept that suits the data y = mx + b
And then , we have to find the value of x² ,∑x,∑y,∑x²,∑xy also N
Then, we have to calculate the slope m
m = n∑(xy) - ∑x ∑y / n ∑(x²) - (∑x)²
= 5 X 236 -26 X 41 / 40 - 676
= 249 / 164
= 1.5183
Then , we hace to calculate the intercept b
b = ∑y - m∑x / n
= 41 - 1.5183 X 26 / 5
= 0.3049
After this we have to assemble it in the equation of line
y =mx + b
Therefore ,
y = 1.518x + 0.305
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Find the y-intercept and the slope of the line.
y=-1/2-1/4x
y-intercept: ?
slope: ?
Answers
Answer: slope = -1/4 y-intercept = -1/2
Step-by-step explanation:
Given an equation in the form y = mx + b, m = slope and b = y-intercept.
We can rearrange y= -1/2 - 1/4x into that form.
y = -1/4x - 1/2
We can now obviously see that -1/4x is the slope, and -1/2 is the y-intercept.
complete the partial two-way frequency table below that shows the extracurricular activities of high school students. Based on the data in the table, how many students do not play an instrument
Answers
According to the information, the missing number from the box is number 40.
How to find the missing number in the box?To find the missing number of the table we must take into account different elements. In particular we must look at the totals and the columns and rows in which the empty space is. Once we identify the totals we can subtract the other values from the total and find the missing number in the table.
According to the above we can infer that the missing number is 40.
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A triangular pane of glass has a height of 32 inches and an area of 352 square inches. What is the length of the base of the pane?
Answers
The required length of the base of the triangular pane of glass is 22 inches.
We know that the formula for the area of a triangle is:
Area = 1/2 * base * height
We are given that the height of the triangular pane of glass is 32 inches and the area is 352 square inches. Substituting these values into the formula, we get:
352 = 1/2 * base * 32
Multiplying both sides by 2 and dividing by 32, we get:
base = 22
Therefore, the length of the base of the triangular pane of glass is 22 inches.
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A furnace is designed to heat a 10,000 cubic feet of space. Will this furnace be adequate for a 1,400 square foot house with a 9foot ceiling.
Answers
To determine whether the furnace will be adequate for a 1,400 square foot house with a 9-foot ceiling, we need to calculate the volume of the house and compare it to the volume the furnace is designed to heat.
The volume of the house can be found by multiplying the square footage by the ceiling height:
1,400 sq ft x 9 ft = 12,600 cubic feet
Since the furnace is designed to heat 10,000 cubic feet, and the house has a volume of 12,600 cubic feet, the furnace may not be adequate for heating the house. The furnace is not capable to heat the entire house.