2 years ago

The number 77 is decreased to 16. What is the percentage by

Mathematics

1 answer:

almond37 [142]2 years ago

5 0

You should use Socratic it really helped me

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Trig, Coterminal angles... Which of the following are coterminal with -pi/4 ... (a) 7pi/4 (b)3pi/4 (c)-5pi/4) (d)-9pi/4 (e) pi/4

AveGali [126]

Correct answers are a) and d)

$\alpha=- \frac{\pi}{4} 
$

Coterminal angles: $\alpha+k\pi,\,k\in Z$

$- \frac{\pi}{4}+2\pi=- \frac{\pi}{4}+ \frac{8\pi}{4} = \frac{7\pi}{4}
\\
\\- \frac{\pi}{4}-2\pi=- \frac{\pi}{4}- \frac{8\pi}{4} = -\frac{9\pi}{4}$

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3 years ago

What is the gradient of the graph shown?

sladkih [1.3K]

Answer:

gradient = $\frac{1}{3}$

Step-by-step explanation:

calculate the gradient m using the gradient formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (- 6, 0) and (x₂, y₂ ) = (0, 2) ← 2 points on the line

m = $\frac{2-0}{0-(-6)}$ = $\frac{2}{0+6}$ = $\frac{2}{6}$ = $\frac{1}{3}$

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1 year ago

Do you guys know the angle?

Paha777 [63]

90 degrees :).........

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2 years ago

What is the y intercept of the line y = 2x+1?

Tresset [83]

Answer:

Step-by-step explanation:

the equation for a slope-intercept line is y=mx+b. In this equation, b represents the y intercept. In the equation you posted, 1 is in the place of b, so one is the y intercept.

hope this helps

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Can someone please help me with a few of theseee

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i dont know, sorry.

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