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2 years ago

Giving brainlist please help me out

Mathematics

1 answer:

ira [324]2 years ago

7 0

Answer:

681 m^3

Step-by-step explanation:

Winder only found part of the volume. He also needs to find the volume of the hemisphere.

I would first find the volume of the cylinder like Winder, then proceed to calculate the volume of the hemisphere, which is V = 4/3π(4^3)=27.16 m^3. The total volume inside the storage tank is 681 m^3 when rounded to the nearest cubic meter.

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A line contains the points (-1, 6), (6, k) and (20, 3). What is the value of k?

AURORKA [14]

Consider, pls, this option:
1. if a required line has a form y=ax+b, then points A(-1;6); B(6;k) and C(20;3) belong to it.
2. According to the item 1 it is possible to make up the system of equations for A and C:
$\left \{ {{-a+b=6} \atop {20a+b=3}} \right \ \left \{ {{a=- \frac{1}{7} } \atop {b= \frac{41}{7} }} \right.$
Knowing, that a=-1/7 and b=41/7, it is possible to write the equation of required line:
$y=- \frac{1}{7}x+ \frac{41}{7}$
3. Using coordinates of point B:
$k=- \frac{6}{7}+ \frac{41}{7} =5 \ where \ k=y$

Answer: 5.

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4 years ago

Conner has $3 more than Chi

Tju [1.3M]

I think it’s 20 but I may be wrong

6 0

3 years ago

How to convert 1/4 to decimal form. How do I start that ? I obviously know it’s .25 but how do I show work ?

RideAnS [48]

Answer:

(1/4 x 1 ) = 0.25

or (1/4) x 1 = 0.25

Step-by-step explanation:

We are doing the opposite to finding 25%

Which is 1/4 of 100%

We do this an opposite (not as inverse)

To find percentage increase as you can compare below.

or as percentage increase

230 x 0.25 (x 100) = 287.50

Even though we are not finding increase for 1/4 by changing it to decimal form, this practice does use the (x1) element in brackets and does identify the distribution.

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4 years ago

Read 2 more answers

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kap26 [50]

Garden a is doubled to get garden b

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3 years ago

Is x = -3 a solution to 5x + 2 = -4x + 5?

MaRussiya [10]

Step-by-step explanation:

5(-3) + 2 = (-15) + 2 = -13.

-4(-3) + 5 = 12 + 5 = 17.

Since -13 ≠ 17, x = -3 is not a solution.

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3 years ago