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3 years ago

How many solutions does the given system of equations have?

1 answer:

8 0

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Model 55% during a 10-by-10 grid

denis23 [38]

Idk if this is what you need but

6 0

2 years ago

Please answer this correctly

vovangra [49]

Answer:

Cable: 10% Satellite: 40% Streaming Service: 50%

Step-by-step explanation:

There are 10 friends

1 has cable

4 have satellite

5 have streaming service

Which means:

Cable is 10%

Satellite is 40%

Streaming Service is 50%

5 0

2 years ago

Read 2 more answers

Find the area of a trapezoid Q Is 4 cm S is 7 cm are is 3 cm

a_sh-v [17]

Answer:67

Step-by-step explanation:

7 0

2 years ago

A space telescope on a mountaintop is housed inside of a cylindrical building with a hemispheric dome. If the circumference of t

Vlad1618 [11]

Answer:

$185553.7\text{ feet}^3$

Step-by-step explanation:

GIVEN: A space telescope on a mountaintop is housed inside of a cylindrical building with a hemispheric dome. If the circumference of the dome is $84\text{ feet}$ , and the total height of the building up to the top of the dome is $91\text{ feet}$ .

TO FIND: what is the approximate total volume of the building.

SOLUTION:

let the height of the mountaintop be $h\text{ feet}$

As the dome hemispherical.

circumference of a hemisphere $=\frac{1}{2}\times2\pi\times radius$

$=\pi\times radius$

$\frac{22}{7}\times radius=84$

$radius=26.75\text{ feet}$

total height of the building up to the top of the dome $=\text{radius of hemisphere}+\text{height of mountaintop}$

$=26.75+h=91$

$h=64.25\text{ feet}$

Volume of building $=\text{volume of cylindrical mountaintop}+\text{volume of dome}$

$=\pi(radius)^2h+\frac{2}{3}\pi(radius)^3$

as radius of mountain top is same as dome

putting values

$=3.14(26.75)^264.75+\frac{2}{3}3.14(26.75)^3$

$=145484.6+40069.1$

$185553.7\text{ feet}^3$

Hence the total volume of the building is $185553.7\text{ feet}^3$

5 0

3 years ago

If 20 mangoes cost 850 naira , what is the cost of 15 Mangoes

Marianna [84]

In this math problem, we will be using rate of change.
850 naira’s / 20 mangoes
= 42.5 nairas for one mango.
Next, to find the cost of 15 mangoes, we will take the cost of our one mango and simply multiply it by 15.
= 42.5 nairas * 15
= 637.50 nairas
So, in conclusion, the cost of 15 mangoes is 637.50 naira.

3 0

2 years ago