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3 years ago

The pic is here , just the question wouldn’t show up right. Any help ?

Mathematics

2 answers:

KATRIN_1 [288]3 years ago

5 0

Answer:

Answer:B

Step-by-step explanation:

coldgirl [10]3 years ago

3 0

Answer:

its 4√2i i think

Step-by-step explanation:

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Question 6 of 10

puteri [66]

Answer:

A and C the other two are just stand alone numbers. so the answers are A and C

7 0

3 years ago

The volume of a CONE-shaped hole is 75pi ft cubed. If the hole is 9 feet deep, what is the radius of the hole?

Arturiano [62]

Answer:

The radius of hole is 5 feet

Step-by-step explanation:

Depth of conical hole = 9 feet

Let the radius of hole be r

Volume of conical hole = $\frac{1}{3} \pi r^2 h$

So, Volume of conical hole = $\frac{1}{3} \pi \times r^2 \times 9$

We are given that volume of a CONE-shaped hole is 75pi ft cubed.

So, $\frac{1}{3} \pi \times r^2 \times 9=75 \pi$

$\frac{1}{3} \times r^2 \times 9=75$

$r^2=\frac{75 \times 3}{9}$

$r=\sqrt{\frac{75 \times 3}{9}}$

r=5

Hence The radius of hole is 5 feet

6 0

3 years ago

An object at the top of a building with height 110 feet is thrown upward with an initial speed of 23 ft/s. Find its position z(t

alina1380 [7]

Answer:

Step-by-step explanation:

Given

Height of building is $h=110\ ft$

Initial upward velocity $u=23\ ft/s$

height of object is given by

$z(t)=ut+\frac{1}{2}gt^2$

but building is already at a height of 110 ft so z(t) must be given by

$Z(t)=ut+\frac{1}{2}(-g)t^2+110$

$Z(t)=23\times t-\frac{1}{2}\times 9.8\times t^2$

$Z(t)=-16t^2+23t+110$

Time when it hits is given by when Z(t)=0[/tex]

$-16t^2+23t+110=0$

$t=\frac{-23\pm \sqrt{(23)^2-4\times (-16)\times 110}}{2\times (-16)}$

$t=\frac{-23\pm 87}{-32}$

$t=3.43\ s$

6 0

3 years ago

SOMEONE PLZ HELP !!!!!!!!!!!!!!!!!

erma4kov [3.2K]

Answer:

It is B.

Step-by-step explanation:

I am 99% sure im correct. dont get mad at me if im not

3 0

3 years ago

Read 2 more answers

Kamala spent a total of $4.32 to buy

Ostrovityanka [42]

Each pencil costs 0.72 as you do 4.32 / 6

7 0

3 years ago