Mathematics High School

Need help with math questions

Answers

Answer 1

Answer:

Combine like terms - 3+x=4

Given - 3 +4x -3x =4

Subtraction Property of Equality- x=1

Answer 2

What are the answers you are give?

Related Questions

A slot machine has 3 wheels that spin independently. Each has 10 equally likely symbols: 4 bars, 3 lemons, 2 cherries, and a bell. If you play, what is the probability that you get at least one bar?

Answers

Answer:

a) 3 lemons = (0.3)^3 = 0.027

------------------------------------

b) No fruit symbols = (0.5)^3 = 0.125

c) 3 bells (the jackpot) = (0.1)^3 = 1/1000

d) No bells = (999/1000)

e) At least one bar (An automatic loser)= 1 - P(no bars)

= 1 - 3C0(0.4)^0*0.6^3 = 1-0.6^3 = 0.784

============================================

Cheers,

What is the value of the expression 8-(7-4) +12x2

Answers

8-3 +12×2
8-3+24
5+24
your answer is 29

Answer:

-24

Step-by-step explanation:

8-(-7-4)+12*2

8(-7+4)+12*2

-56+32+12*2

-24+12*2

-12*2

-24

Hope this helps ;) ❤❤❤

13. Name a line that contains points T and P.
14. Name a line that intersects the plane containing points Q, N, and P.
15. What is another name for line h?
16. Name the plane that contains TN and QR.

Answers

Answer:

Step-by-step explanation:

13. Name a line that contains points T and P.: g, if I read that squiggle correctly (bottom right)

14. Name a line that intersects the plane containing points Q, N, and P.: j

15. What is another name for line h?: Line QR?

16. Name the plane that contains TN and QR.: S

a ___ equation is an equation that contains a variable within a radical expression.

Answers

A radical equation is an equation that contains a variable within a radical expression.

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Which could be the value of A?

A) - 10
2
C)
3
B) 0
D) 2.0

Answers

Answer:

Step-by-step explanation:

first answer= brainliest

Answers

Answer:

if you is 3.14 instead of actual pi you get 12.56

I need some guidance on math:(

Answers

Answer:

C. -38

Step-by-step explanation:

We know that if the denominator is not given, then it is 1

So,

(-5/1) = (y-7/9)

Now, cross-multiply and set them equal

-45 = y - 7 Add both sides by 7

-38 = y

there were three apples , 1 mixed fruit, 2 grape, and 4 tropical fruit juice boxes in the cooler at the picnic. What is the probability that, when Jill reaches into the cooler to grab two juice boxes without replacing them, she grabs two that are grape?

Answers

Answer:

1/45 ≈ 0.022

Step-by-step explanation:

There are originally 10 juice boxes in the cooler, 2 of which are grape.

The probability that the first juice box is grape is 2/10.

The probability that the second juice box is grape is 1/9.

The probability of both is (2/10) (1/9) = 1/45 ≈ 0.022.

Given f(x)=22x+10, find f(4).

Answers

Answer:

f(4) = 98

Step-by-step explanation:

Substitute any x values for 4, and then solve.

f(4) = 22(4) + 10

f(4) = 88 + 10

f(4) = 98

suppose that wedding costs in the caribbean are normally distributed with a mean of $9000 and a standard deviation of $995. estimate the percentage of caribbean weddings that cost

Answers

Inferring from the provided mean and standard deviation that 15.62 percent of Caribbean weddings have a budget of less than $8,000 is our best guess.

To solve this problem

We can use the properties of the normal distribution.

Given:

Mean (μ) = $9000

Standard deviation (σ) = $995

Let's imagine we want to calculate the proportion of Caribbean weddings that are less expensive than X dollars.

We must use the following formula to determine X's z-score in order to determine this percentage:

z = (X - μ) / σ

Once we know the z-score, we may use a statistical calculator or the conventional normal distribution table to determine the corresponding cumulative probability.

Let's estimate the proportion of Caribbean weddings that cost less than $8000, for illustration.

z = ($8000 - $9000) / $995

z = -1.005

We may determine that the cumulative probability corresponding to z = -1.005 is roughly 0.1562 using the usual normal distribution table.

To convert this into a percentage, we multiply by 100:

Percentage = 0.1562 * 100

Percentage ≈ 15.62%

Therefore, Inferring from the provided mean and standard deviation that 15.62 percent of Caribbean weddings have a budget of less than $8,000 is our best guess.

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how many solutions does 6 -3x = 12 - 6x have?
A. two solutions.
B. no solutions.
C. one solution.
D. infinitely many solutions.

Answers

Answer:

Step-by-step explanation:

6-3x=12-6x

Only one solution of x=2

Calculate the length of AC in ABAC to 1 decimal place.

Answers

The length of AC in triangle BAC is equal 10.7 units

Cosine Rule

In trigonometry, the cosine rule says that the square of the length of any side of a given triangle is equal to the sum of the squares of the length of the other sides minus twice the product of the other two sides multiplied by the cosine of angle included between them.

The formula is given as

AC² = AB² + BC² - 2(AB)(BC) cos AC

AC² = 6² + 7² - 2(6)(7)cos110

AC = 10.7

Using cosine rule, the length of AC is 10.7 unit.

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Write 10 1/3 as an improper fraction

Answers

Answer:

31/3

Step-by-step explanation:

The 10 1/3 written as the improper fraction 31/3.

To convert the mixed number 10 1/3 into an improper fraction, follow these steps:

Multiply the whole number (10) by the denominator of the fraction (3):

10 × 3 = 30

Add the result from step 1 to the numerator of the fraction (1):

30 + 1 = 31

Place the result from step 2 over the original denominator (3) to form the improper fraction:

10 1/3 = 31/3

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$ {18e}^{ - 3x} \geqslant 0$
PLZ help

Answers

Greetings from Brasil...

Note the graph of the function eˣ (or e⁻ˣ). We conclude that for any value of X, the result will be between 0 and +∞.\

So there is no value for X that the result of m.eˣ (or m.e⁻ˣ) is negative.

So you can answer:

For the equation of the statement of the question, with any value of X, we will always obtain a number greater than zero

S = {X | X∈ ℝ}

(OBS: we'll never get zero. We can get very close, but never zero)

$[tex] {18e}^{ - 3x} \geqslant 0[/tex]PLZ help$

HELPP BHFEJKFFE PLEASEE!!!!!! :))

Answers

Answer:

i would say 5

Step-by-step explanation:

4 is almost the same size as $x$ but $x$ is just a little bit longer and its slanted

the cosine of the complimentary angle to 58 degrees

Answers

Yes
Divide it by sixty and multiply
I hope this helps

What is an equation of the line that passes through the point ( − 6 , − 2 ) (−6,−2) and is parallel to the line 3 x − 2 y = 2 ?

Answers

Answer:

Step-by-step explanation:

let's rearrange the equation 3 x − 2 y = 2 a bit. (isolate y)

3x - 2 /2 = 2y /2

(3x-2)/2 = y

$\frac{3}{2} x$ - 1 = y

The slope for the equation is 3/2.

Rule: Parallel lines have the same slope

So we know that the slope of the line we need to find is 3/2.

y = mx +b

y = (3/2)(x) + b

Now plug in the point (-6,-2) to find b

-2 = (3/2)(-6) + b

-2 = -9 + b

-2 + 9 = -9 + b + 9

7 = b

b = 7

Therefore the equation of the line we need to find: y = $\frac{3}{2}x + 7$

what does 1/5 + (-1/2) equal

Answers

Answer: (:

Step-by-step explanation:

-0.3

Answer:

-3/10

Step-by-step explanation:

Each day, ted can wax 4 cars or wash 12 cars, and ishana can wax 3 cars or wash 6 cars. what is each person's opportunity cost of washing a car?

Answers

The opportunity cost of washing a car for Ted is 4 cars, and the opportunity cost of washing a car for Ishana is 3 cars.

To determine each person's opportunity cost of washing a car, we need to compare the alternative activity they would have to give up in order to wash a car.

For Ted:

Ted can wax 4 cars or wash 12 cars. So, the opportunity cost of washing a car for Ted is the number of cars he could have waxed instead. In this case, Ted would have to give up waxing 4 cars to wash a car.

For Ishana:

Ishana can wax 3 cars or wash 6 cars. So, the opportunity cost of washing a car for Ishana is the number of cars she could have waxed instead. In this case, Ishana would have to give up waxing 3 cars to wash a car.

Therefore, the opportunity cost of washing a car for Ted is 4 cars, and the opportunity cost of washing a car for Ishana is 3 cars.

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16. a) Use the contrapositive to prove, for all x €Z, that if 3|x^2, then 3|x. There will be two cases, namely, x mod 3= 1 and x mod 3 = 2.
b) Use part (a) of this exercise to prove that the square root of 3, √3 is irrational

Answers

if 3 | x², then 3 | x for all x ∈ Z, which is proven by the contrapositive.

We are given an implication statement. The contrapositive of the statement has the same truth value as the implication, which means that if the implication is true, then the contrapositive is also true. We are supposed to prove, for all x ∈ Z, that if 3 | x², then 3 | x.

The contrapositive of this statement is "if 3 does not divide x, then 3 does not divide x²".If x mod 3 = 1, then x = 3k + 1 for some integer k. Thus, x² = (3k + 1)² = 9k² + 6k + 1 = 3(3k² + 2k) + 1. Since 3 divides 3(3k² + 2k), we can say that 3 | x². Therefore, if 3 | x², then 3 | x, as required.If x mod 3 = 2, then x = 3k + 2 for some integer k. Thus, x² = (3k + 2)² = 9k² + 12k + 4 = 3(3k² + 4k + 1) + 1. Since 3 divides 3(3k² + 4k + 1), we can say that 3 | x². Therefore, if 3 | x², then 3 | x, as required.Overall, we can conclude that if 3 | x², then 3 | x for all x ∈ Z, which is proven by the contrapositive.

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Q: S and T are relations on the real numbers
and are defined as follows:

S = {(x, y) ∣ x < y}
T = {(x, y) ∣ x > y}
What is T ∘ S?

A) R x R (all pairs of real numbers)
B)
C) S
D) T

Answers

B) ∅ (empty set); The composition T ∘ S is an empty set (∅) because there are no ordered pairs that satisfy both the conditions of the relations T and S.

To find the composition T ∘ S, we need to determine the set of ordered pairs that satisfy both relations S and T. Let's analyze the definitions of S and T:

S = {(x, y) ∣ x < y}

T = {(x, y) ∣ x > y}

To find T ∘ S, we need to check if there exists an element z such that (x, z) is in T and (z, y) is in S for any (x, y) in the given relations. However, if we observe the definitions of S and T, we can see that there is no common element that satisfies both relations.

For any (x, y) in S, we have x < y, but in T, the relation is defined as x > y. Therefore, there are no elements that satisfy both conditions simultaneously.

As a result, T ∘ S will be an empty set (∅) because there are no ordered pairs that satisfy the composition of the two relations.

The composition T ∘ S is an empty set (∅) because there are no ordered pairs that satisfy both the conditions of the relations T and S.

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A ball is thrown straight down from the top of a 300-ft building with an initial velocity of -12 ft per second.
The position function is s(t) = -16t² +vot+so. What is the velocity of the ball after 4 seconds?

Answers

No you won’t take me from my fart friends

Answer:

Below in bold.

Step-by-step explanation:

s(t) = -16t² - 12t + 300

v(t) = ds/ dt = -32t - 12

At time t:

velocity = -32(4) - 12 = -140 ft/s.

The Haitian Revolution was the first, of many, successful slave uprisings in history.
A) True
B) False

Answers

A it is true it was the first and only one

Damien deposited $250 in an account that earned 3.75% interest compounded annually.He did not make additional withdraws or deposits .what will the balance in his account be at the end of 4 years?

Answers

Step-by-step explanation:

$ \frac{3.75}{100} \times 250 =9.375$

$9.375 \times 4 = 37.50$

$250 + 37.50 = 287.50$

I think this is the answer

Solve. 6x +12x = 72.
x=

PLEASE HELP I REALLY NEED HELP

Answers

Answer:

x=4

Step-by-step explanation:

6x+12x=72

18x=72

x=4

X=4 that’s the answer

please help will give brainliest and fifty points

Refer to the table above. Determine the marginal distribution of Gender. In paragraph form, how you calculated the marginal distribution. Include your calculations in your explanation.

Answers

The likelihood of an occurrence regardless of the result of another variable is known as marginal probability.

What is marginal probability?

The likelihood of an occurrence regardless of the result of another variable is known as marginal probability. The likelihood of one event occurring in the presence of another is known as conditional probability.

We already know that marginal probabilities are calculated by dividing marginal frequencies by total frequency.

As a result, in this situation, the gender's marginal probability distribution is given by,

P(Gender=x) ≈ 0.5308 if x = Male

≈ 0.4692(1-0.5308) if x = female

= 0 otherwise

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10. One contestant on a game show has
1,500 points and another contestant has
-250 points. What is the difference
between the scores of the contestants?

Answers

1750.
it's the difference between 1500 and -250, so simply add the two.
think about it like this:
one number is lower than zero, so you already have the 1500 minimum for a difference. but it isn't bang on zero, it's 250 less than that. so the answer is 1750.

Need help with math.

Answers

it’s c(4) that is the value

what is 2+2 i need help like rly bad i will give 100 points

Answers

Answer:

4 bestie <3

Step-by-step explanation:

Answer:

Step-by-step explanation:

Write an equation in slope-intercept form for the line with a slope of -1 and a y-intercept of -2.

Answers

Answer:

y = -x - 2

Step-by-step explanation:

Write an equation in slope-intercept form for the line with a slope of -1 and a y-intercept of -2.

slope-intercept form: y = mx + b where m = slope and b = y-intercept

when:

slope of -1

y-intercept of -2

then:

y = -1x + (-2)

y = -x - 2

Answer:

y= -x-2

Step-by-step explanation:

y=mx+b

slope=m

y intercept=b

m= -1

b= -2

input values of m and b to get equation:

y=(-1)x+(-2)

y= -1x-2

y = -x-2

y= -x-2

pls mark as brainliest

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