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2 years ago

50 POINTS!

Mathematics

2 answers:

Sphinxa [80]2 years ago

5 0

Answer:

I think its B hope this helps

goldfiish [28.3K]2 years ago

4 0

Answer:B

Step-by-step explanation: i got a 100

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What is 5x + 9 - 2x - 7

beks73 [17]

Answer:
3x + 2

How I Found The Answer:
5x + 9 - 2x - 7
= 5x + 9 + -2 + -7
= (5x + -2x) + (9 + -7)
= 3x + 2

7 0

3 years ago

If costheta=4/5 then what is sec^2theta

DaniilM [7]

Answer:

$\sec^2(\theta)=\frac{25}{16}$

Step-by-step explanation:

Recall what the relationship between cosine and secant:

$\sec(\theta)=\frac{1}{\cos(\theta)}$

In other words, secant is the reciprocal of cosine.

So, if we know cosine, we only need to find its reciprocal to find secant.

We are given that cosine is:

$\cos(\theta)=\frac{4}{5}$

Then secant must be:

$\sec(\theta)=\frac{5}{4}$

So:

$\sec^2(\theta)=(\frac{5}{4})^2$

Square:

$\sec^2(\theta)=\frac{25}{16}$

And we're done!

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3 years ago

Using the diagram below, what is the measure of angle 8?*

julsineya [31]

Answer:

D-124 degrees

Step-by-step explanation:

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3 years ago

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Help please i don’t understand

Monica [59]

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

Triangles are similar ,

Thus :

$\frac{9}{3} = \frac{6}{x} \\$

$3 = \frac{6}{x} \\$

$\frac{6}{x} = 3 \\$

Inverse both sides

$\frac{x}{6} = \frac{1}{3} \\$

Multiply sides by 6

$6 \times \frac{x}{6} = 6 \times \frac{1}{3} \\$

$x = 2 \times 3 \times \frac{1}{3} \\$

$x = 2$

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2 years ago

Two warning lights flash on the fences of Jurassic Park. One light flashes every 3 seconds. Another light flashes

Anni [7]

Answer:

5 times

Step-by-step explanation:

Demos

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3 years ago

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