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2 years ago

Determine the x for x^2=81

Mathematics

1 answer:

andrezito [222]2 years ago

8 0

Answer:

X=9

Step-by-step explanation:

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From the first quiz to the second quiz, a score dropped eight points. The score on the second quiz was 39. What was the first qu

frutty [35]

Answer:47

Step-by-step explanation:

Because 39+8=47.

5 0

2 years ago

Read 2 more answers

What is the equation of the line that passes through the point (-5,-2) and has a slope of -6/5

tatyana61 [14]

Answer:

The answer is

Step-by-step explanation:

To find an equation of a line in point slope form when given the slope and a point we use the formula

$y - y_1 = m(x - x_1) \\$

where

m is the slope

( x1 , y1) is the point

From the question the point is (-5,-2) and the slope is - 6/5

The equation of the line is

$y + 2 = - \frac{6}{5} (x + 5) \\ y + 2 = - \frac{6}{5} x - 6 \\ y = - \frac{6}{5} x - 6 - 2$

We have the final answer as

$y = - \frac{6}{5} x - 8 \\$

Hope this helps you

5 0

3 years ago

Please help! And I need the steps too!

fomenos

Answer:

-25

Step-by-step explanation:

Step 1: 2-9-5-3-2- $2^{3}$

Step 2: 2-9-5-3-2-8

Step 3: -25

7 0

2 years ago

She filled her one half cup measuring cup 7 times how many flowers does the cake recipe call for

Oksana_A [137]

Answer -3.5 reason is because if u do 7 multiplied by 1/2 u get that answer

7 0

3 years ago

9. Find the dimensions of the<br>4 triangular faces of the pyramid.<br>(Height is 55.5 ft)<br>

Minchanka [31]

Answer:

$Q=\frac{\pi}{2}*55.5ft=87.18ft\\P=87.18ft*\sqrt{\frac{1}{2}+\frac{16}{\pi ^{2}}}=87.18*0.9515=82.95ft\\$

Step-by-step explanation:

We have a 4-sided triangular pyramid , where

$Q=\frac{\pi}{2}*H\\P=Q*\sqrt{\frac{1}{2}+\frac{4}{\pi ^{2}}}\\Q=\frac{\pi}{2}*55.5ft=87.18ft\\P=87.18ft*\sqrt{\frac{1}{2}+\frac{16}{\pi ^{2}}}=87.18*0.9515=82.95ft\\$

3 0

3 years ago