what is an expression that is equivalent to 15-5x

Answer:

E,F,C

Step-by-step explanation:

Answer:

-2x + 4

Step-by-step explanation:

The y intercept is 4. When x increases by 1, y decreases by 2.

Answer:

Y

Step-by-step explanation:

The rise is -2/1 and that is simplified to -2 because the line is going down

Answer: -3

Step-by-step explanation:

3−4−4+2

−1−4+2

−5+2 =-3

Answer:

-3

Step-by-step explanation:

Answer:

i think its b

Answer:

x = -3.5

Step-by-step explanation:

1(x-2) = -5.5

x-2 = -5.5

 +2    +2

x = -3.5

Answer:

She will jog and lift weights on the same day in 10 days

Step-by-step explanation:

To find when two events will happen on the same day, we find the least common multiple(that is not 0) of their frequencies.

In this question:

Every two days she jogs

Every 5 days she lifts.

Multiples of 2: {0, 2, 4, 6, 8, 10, 12, ...}

Multipled of 5: {0, 5, 10, 15, ...}

The least common multiple is 10, so:

She will jog and lift weights on the same day in 10 days

Answer:

me, what's the question so I can see how to figure out the answer

Answer:

0.3472 = 34.72% probability that the sampled fraction of voters favoring the bond issue will not differ from the true fraction by more than 0.02.

Step-by-step explanation:

To solve this question, we use the normal probability distribution and the central limit theorem.

Normal probability distribution:

When the distribution is normal, we use the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]

In this question:

Proportion [tex]p = 0.2[/tex], sample of [tex]n = 81[/tex]. So

[tex]\mu = p = 0.2[/tex]

[tex]s = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.2*0.8}{81}} = 0.0444[/tex]

Approximate the probability that the sampled fraction of voters favoring the bond issue will not differ from the true fraction by more than 0.02.

Probability of the sampled proportion being between 0.2 - 0.02 = 0.18 and 0.2 + 0.02 = 0.22, which is the pvalue of Z when X = 0.22 subtracted by the pvalue of Z when X = 0.18. So

X = 0.22

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{0.22 - 0.2}{0.044}[/tex]

[tex]Z = 0.45[/tex]

[tex]Z = 0.45[/tex] has a pvalue of 0.6736

X = 0.18

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{0.18 - 0.2}{0.044}[/tex]

[tex]Z = -0.45[/tex]

[tex]Z = -0.45[/tex] has a pvalue of 0.3264

0.6736 - 0.3264 = 0.3472 = 34.72% probability that the sampled fraction of voters favoring the bond issue will not differ from the true fraction by more than 0.02.

Answer:

B. Write each student's name on a slip of paper and put the slips in a bag. Randomly draw a slip of paper. The student whose name is on the paper wins

Answer:

A. Roll a number cube. If it lands on 1 or 3, Alina wins. If it lands on 2  or 4, Robert wins. If it lands on 5 or 6, Makayla wins.

B. Write each student's name on a slip of paper and put the slips in a

bag. Randomly draw a slip of paper. The student whose name is

on the paper wins.

Step-by-step explanation:

Answer:

There will be $634.05 in the account.

Step-by-step explanation:

Compound interest:

The compound interest formula is given by:

[tex]A(t) = P(1 + \frac{r}{n})^{nt}[/tex]

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.

$390 in an account paying an interest rate of 2.7% compounded daily.

This means that [tex]P = 390, r = 0.027, n = 365[/tex]

Assuming no deposits or withdrawals are made, how much money, to the nearest cent, would be in the account after 18 years?

This is A(18). So

[tex]A(t) = P(1 + \frac{r}{n})^{nt}[/tex]

[tex]A(18) = 390(1 + \frac{0.027}{365})^{365*18}[/tex]

[tex]A(18) = 634.05[/tex]

There will be $634.05 in the account.

Answer:

32.08% = 401/1250

Step-by-step explanation:

Answer:

I think its b not sure Bc I am only in 8th grade

Answer:

None of the Above

Step-by-step explanation:

10 - Not Prime

11 - Prime

12 - Not Prime

13 - Prime

14 - Not Prime

15 - Not Prime

16 - Not Prime

17 - Prime

18 - Not Prime

19 - Prime

6 numbers NOT PRIME

4 numbers PRIME

4 - 3 = 1

1 + 6 = 7

1/7

Answer:

[tex]p=\frac{8}{7}[/tex]

Step-by-step explanation:

[tex]\frac{2}{4} = \frac{4}{p} - 3[/tex]

[tex]\frac{1}{2} = \frac{4}{p} - 3[/tex] (simplify)

[tex]\frac{1}{2}+3 = \frac{4}{p} - 3+3[/tex]

[tex]\frac{1}{2}+3 = \frac{4}{p}[/tex] (Add 3 to both sides)

[tex]\frac{7}{2}= \frac{4}{p}[/tex] (simplify)

[tex]\frac{7}{2}p= \frac{4}{p}*p[/tex]

[tex]\frac{7p}{2}=4[/tex] (Multiply both sides by p)

[tex]\frac{7p}{2}*2=4*2[/tex]

[tex]7p=8[/tex] (Multiply both sides by 2)

[tex]\frac{7p}{7}=\frac{8}{7}[/tex]

[tex]p=\frac{8}{7}[/tex] (Divide both sides by 7)

Answer:

2y +12

Step-by-step explanation:

5y - 3y =2y and then plus 12

Answer:

C

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

Answer:it. Actually 0

Step-by-step explanation:

Answer:

5/6

25/30

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

4 us the rifht answer just put 4

The value of the function in the interval (-4, -1) and (1, ∞) will be positive. Then the correct option is C.

A function is an assertion, concept, or principle that establishes an association between two variables. Functions may be found throughout mathematics and are essential for the development of significant links.

The first number mentioned is the least because it is the smallest, and the final number listed is the greatest because it is the biggest.

From the graph, the value of the function in the interval (-4, -1) will be positive. And the value of the function in the interval (1, ∞) will be positive. Then the correct option is C.

More about the function link is given below.

https://brainly.com/question/5245372

#SPJ2

The graph is attached below. And the missing options are given below.

a. x < - 4

b. x > 1

c. -4 < x < 1 and x > 1

d. - 4 > x

Answer:

2 staircases

Step-by-step explanation:

3 : 36

1 : 12

2 : 24

If katie can build three staircases to make 36 obstacles against the other player. Then 2 staircases will she need to make 24 obstacles

A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0.

Given,

katie can build three staircases to make 36 obstacles against the other player

We need to find the number of staircases she need to make 24 obstacles.

Let us form a proportional relationship.

Consider x as the number of staircases will she need to make 24 obstacles

3/36=x/24

Apply cross multiplication

3×24=36x

72=36x

Divide both sides by 36

x=2

Hence Katie should have 2 staircases to make 24 obstacles.

To learn more on Ratios click:

https://brainly.com/question/1504221

#SPJ2

Answer:

C

Step-by-step explanation:

If the cost is represented by n, why would you subtract the cost of the notebook by 0.78 while multiping it witht the cost?

Answer:

C

Step-by-step explanation:

Answer:

the 2nd

Step-by-step explanation:

Answer: NEED PICTURE TO ANSWER, we dont know if it a square or if its a rectangle, sry

Step-by-step explanation:

Answer:

9 yards 1 foot 2 inches

Step-by-step explanation:

90inches=2.5 yards

3.5 yards

10.5 ft=3.5 feet

2.5+3.5=6 yards

6+3.5 ft=9.5 yards

9 yards  1 foot 2 inches

took me forever to write this

Answer:

342 inches, 28.5 feet, 9.5 yards.

Step-by-step explanation:

The conversion rates you need to know are as follows:

1 foot = 12 inches

1 yard = 3 feet

Because there are 3 feet in a yard, we know that there must be are 36 inches in a yard. First, we find how many inches are in 10.5 feet and 3.5 yards. This would be 10.5 * 12 resulting in 126 inches. Also, 3.5 yards as we know is 36 inches so we do 3.5 * 36 which results again in 126. Finding the sum (126 + 126 + 90) we can see that this ribbon is 342 inches long. To find feet we divide this by 12. To find yards, we divide it by 36.

Answer:

The answer is 35.2

Answer:

Number 1 does not represent a function because it does not pass the Vertical Line Test.

Number 2 does not represent a function because it does not pass the Vertical Line Test.