2 years ago

Y=x^7 + 7 Domain and range

1 answer:

3 0

Domain and range all real numbers.

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Luba_88 [7]

Answer:

Step-by-step explanation:

(25)(32)/100=8

5 0

2 years ago

andrey2020 [161]

I think it's 12.50

Im not sure so sorry if im wrong but im 99% sure

7 0

2 years ago

Ainat [17]

Recall the double angle identity for cosine:

$\cos(2x) = \cos^2(x) - \sin^2(x) = 1 - 2 \sin^2(x)$

It follows that

$\sin^2(x) = \dfrac{1 - \cos(2x)}2 \implies \sin(x) = \pm \sqrt{\dfrac{1-\cos(2x)}2} \implies \csc(x) = \pm \sqrt{\dfrac2{1-\cos(2x)}}$

Since 0° < 22° < 90°, we know that sin(22°) must be positive, so csc(22°) is also positive. Let x = 22°; then the closest answer would be C,

$\csc(22^\circ) = \sqrt{\dfrac2{1-\cos(44^\circ)}} = \sqrt{\dfrac2{1-\frac5{13}}} = \dfrac{\sqrt{13}}2$

but the problem is that none of these claims are true; cot(32°) ≠ 4/3, cos(44°) ≠ 5/13, and csc(22°) ≠ √13/2...

3 0

2 years ago

mina [271]

So if the sandwiches cost $7.75 each and the total was $113.50 that would mean that there were 14 sandwiches bought. So 14 times 7.75 is 108.50.

3 0

2 years ago

sukhopar [10]

Answer:

-3x-3x=21-6

9x=15

x=15/9

5 0

2 years ago