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2 years ago

Plzzz help me with thiss

Mathematics

1 answer:

denis23 [38]2 years ago

3 0

Answer:

Step-by-step explanation:

rather than doing all of the sums, you should just learn the formula (for the pattern)

it is n(highest + lowest) where n is number of numbers

for example 2+3+4+5+6 = 20

5(6+2) = 20

~~~~~~~~~~~~~~~~~~~~

1+2+3+4+5+6+7+8 = 36

8(9) = 72/2= 36

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I can’t tell if 3 is a dilation or not!

S_A_V [24]

Answer:

No, its not

Step-by-step explanation:

The points of the image are not moved away from the center of dilation proportionally. I don't think anyway.

3 0

2 years ago

when nancy started middle school, she was 60 inches tall. when she started high school, she was 66 inches tall. what was the per

Ivahew [28]

Answer:

The percent change in Nancy height is 10%

Step-by-step explanation:

Given : when Nancy started middle school, she was 60 inches tall. when she started high school, she was 66 inches tall.

We have to find the percent change in her height.

Percentage change is given by the ratio of the difference in old value and new value to the old value times 100

Mathematically written as

$Percentage\ change =\frac{new\ value-old\ value}{Old\ value}\times 100$

For the given data,

Old value = 60 inches

New value = 66 inches

Thus, the Percentage change is given as,

$Percentage\ change =\frac{66-60}{60}\times 100$

Simlify, we have,

$Percentage\ change =\frac{6}{60}\times 100$

Thus, The percent change in her height is 10%

7 0

2 years ago

Read 2 more answers

Services provided by public service companies are also known as

sammy [17]

The answer is “housing expenses”

4 0

2 years ago

For which value of theta is cot theta equal to cos theta?

Oksi-84 [34.3K]

Answer:

$\frac{cos \theta}{sin \theta}= cos \theta$

If we multiply by cross we got:

$cos \theta = sin \theta cos \theta$

We can divide both sides of the last equation by $cos \theta$ and we got:

$sin \theta = 1$

And if we apply arcsin in both sides we got:

$\theta = arcsin (1) = \frac{\pi}{2}$

And the best solution would be:

C) pi/2

Step-by-step explanation:

For this case we want to solve the following equation:

$cot \theta = cos \theta$

And we know that by definition $cot \theta = \frac{cos \theta}{\sin \theta}$

And replacing we got:

$\frac{cos \theta}{sin \theta}= cos \theta$

If we multiply by cross we got:

$cos \theta = sin \theta cos \theta$

We can divide both sides of the last equation by $cos \theta$ and we got:

$sin \theta = 1$

And if we apply arcsin in both sides we got:

$\theta = arcsin (1) = \frac{\pi}{2}$

And the best solution would be:

C) pi/2

8 0

2 years ago

I forgot what to do

kvv77 [185]

Pretty sure it would be 21x^2+16x+17y

8 0

2 years ago