All categories

3 years ago

Step by step to this please

Mathematics

2 answers:

vladimir1956 [14]3 years ago

6 0

Answer:

Step-by-step explanation:

1) Substitute the values of t, v, and w into the expression:

$(-2)^{2} + (1)(3)$

2) Simplify the terms:

$(-2)^{2} + (1)(3)\\=4 + 3\\= 7$

Drupady [299]3 years ago

6 0

Answer:

Step-by-step explanation:

-2^2+3

4+3

You might be interested in

The price of a stock decreased $2 per day for four consecutive days.!what was the total change in value of the stock over the fo

likoan [24]

The answer is $8, you do 4 x $2

8 0

3 years ago

Determine whether each table represents a linear quadratic or exponential function

Kryger [21]

Answer:

Table A: exponencial function

Table B: quadratic function

Table C: linear function

Step-by-step explanation:

Table A:

for x from 1 to 2, Y increased by 6

for x from 2 to 3, Y increased by 18

for x from 3 to 4, Y increased by 54

So we can see that the values of Y are being multiplied by 3 for each increment of x, so this table represents an exponencial function.

Table B:

for x from 1 to 2, Y increased by 6

for x from 2 to 3, Y increased by 10

for x from 3 to 4, Y increased by 14

The increment of Y is higher than a linear increment and smaller than an exponencial increment, so this is the quadratic function.

Table C:

for x from 3 to 6, Y increased by -2

for x from 6 to 9, Y increased by -2

for x from 9 to 12, Y increased by -2

The increment of Y is constant for the same increment of X, so this is a linear function.

7 0

3 years ago

the side lengths of a triangle are increased by 50% to make a similar triangle. does the area increase by 50% as well?

Anarel [89]

No. The new area is 2.25 times the original area. That's (1.5 times 1.5).

6 0

3 years ago

Read 2 more answers

Does the sample provide strong evidence that the mean weight of the bags is lower than the 35.6 grams listed on the package? Gro

kirill115 [55]

Answer:

As probability of that happening is very small; Yes, 33.6 is less than 35.6 grams because it provide strong evidence that the mean weight of the bags is lower than the 35.6 grams listed on the package.

Step-by-step explanation:

For a normal distribution Z-score

$Z = \frac{X-\mu}{\sigma}$

Given that :

the mean ( $\mu$ ) = 35.6

standard deviation ( $\sigma$ ) = 5.2

sample size (n) = 35

standard error: $\sigma_x = \frac{\sigma}{\sqrt{n}}$

$\sigma_x = \frac{5.2}{\sqrt{35}}$

$\sigma_x = 0.879$

The probability that a random sample of 35 bags has a mean weight of 33.6 grams or less is :

P(X<33.6) = P(Z < - 2.28)

= 0.0114

Conclusion:

As probability of the happening is very small; Yes, 33.6 is less than 35.6 grams because it provide strong evidence that the mean weight of the bags is lower than the 35.6 grams listed on the package.

7 0

4 years ago

WHAT IS 4/5 DIVIDED BY 8?<br><br><br><br> I WOULD GIVE YOU A POINTS

Olegator [25]

Answer:

1/10

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers