3 years ago

Simplify the number √-17

Mathematics

1 answer:

SVETLANKA909090 [29]3 years ago

8 0

I think this is the answer i√-17

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Help me pleaseeee asap

sdas [7]

Answer:

5089.4cm³ (rounded to 1 d.p.)

Step-by-step explanation:

Volume of cylinder = $\pi$ × r² × h

Volume of cylinder = $\pi$ × 9² × 20

= 1620 $\pi$

= 5089.4cm³ (rounded to 1 d.p.)

4 0

2 years ago

What is the value of f(-6) in f(x) = 4x + 10

just olya [345]

Answer:

f(-6) = -14

Step-by-step explanation:

$f(x)=4x+10\\\\f(-6)=4(-6)+10\\\\f(-6)=-24+10\\\\\boxed{f(-6)=-14}$

Hope this helps you.

3 0

2 years ago

Use the quadratic formula to find the exact solutions of x2 − 9x + 5 = 0.

Diano4ka-milaya [45]

Answer:

Step-by-step explanation:

All those words, when the math is so much clearer!

x = (9±√(9^2-4*1*5))/2 = (9±√101)/2

7 0

3 years ago

Read 2 more answers

The question is:

saul85 [17]

$f(x) = \sqrt{x+1} \\ y = \sqrt{x+1} \ or \ y^2 = x+1 \ or \ x = y^2 - 1 \\ Therefore, \ f^{-1}(x)=x^2 - 1$

$(fof^{-1})(a) = f(f^{-1}(a))=f(a^2-1) \\ =\sqrt{a^2-1+1}=\sqrt{a^2}=a \\ \\ (f^{-1}of)(a)=f^{-1}(f(a))=f^{-1}(\sqrt{a+1})= \\ (\sqrt{a+1})^2-1 = a+1-1 = a$

Therefore, $(fof^{-1})(a) = (f^{-1}of)(a) = a$

8 0

3 years ago

Slope 2 passing through 10,8

nlexa [21]

Use y=Mx+b with x=10 and y=8

4 0

3 years ago