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3 years ago

Its number 1. 10 Points to answer

Mathematics

2 answers:

Pani-rosa [81]3 years ago

6 0

Answer : 21 =y3
The total is 21 and y is how many spaces there are and the 3 is the amount the space is

aniked [119]3 years ago

3 0

Answer:

21=y3

Step-by-step explanation:

I hope this helps you. let me know if I am wrong

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Help pleassssssssssssseeee

DiKsa [7]

Answer:

27in, 36in, 45in

Step-by-step explanation:

$a = 27 \\ b = 36 \\ c = 45$

${c}^{2} = {a}^{2} + {b}^{2}$

$c = \sqrt{ {a}^{2} + {b}^{2} }$

$45{ = }^{?} \sqrt{ {27}^{2} + {36}^{2} }$

$45 { = }^{?} \sqrt{729 + 1296}$

$45 { = }^{?} \sqrt{2025}$

$45 = 45$

6 0

3 years ago

The distance between A (-4, 2) and B(4, 2) is.

Nitella [24]

Step-by-step explanation:

the answer is 8 units

I remember I had this

3 0

3 years ago

If the complex number x = 3 + bi and |x|^2 = 13, which is a possible value of b?

olga55 [171]

If x=3+bi, then

$|x|=\sqrt{3^2+b^2}.$

You know that $|x|^2=13,$ then

$\left(\sqrt{3^2+b^2}\right)^2=13,\\ \\ 9+b^2=13,\\ \\b^2=4,\\ \\b=\pm 2.$

Two possible complex numbers satisfy these conditions:

$x_1=3+2i, \ x_2=3-2i.$

As you can see the possible value of b is 2.

Answer: correct choice is A.

3 0

3 years ago

A company rents water tanks shaped like cylinders. Each tank has a radius of 3 feet and a height of 2 feet. The cost is $ 4 per

Alexxandr [17]

Answer:

The total cost of the cylindrical tank is $226.28

Step-by-step explanation:

Dimensions of the tank are: radius = 3 ft , height = 2 ft

Cost per cubic foot = $4

Now, total volume of the cylindrical tank = $\pi \times r^{2}h$

Here, take π = 22/7

So, Volume = $\frac{22}{7} \times (3)^{2} \times (2) = \frac{22 \times 9 \times 2}{7} = \frac{396}{7} = 56.57 cubic ft$

So, the <u>volume of the tank = 56.57 cubic feet. </u>

Now, cost per cubic foot = $4

Hence, the total cost of the tank = Total Volume of the tank x cost per foot

= 56.57 x 4 = $226.28

So, the total cost of the cylindrical tank is $226.28

5 0

3 years ago

Can you guys help me with this one, thanks

Fudgin [204]

Answer:

The answer is 3 3/4

Step-by-step explanation:

First, you have to find a common denominator. 4 and 6 both can first into 12, so 12 is the common denominator. Then you subtract.

4 0

3 years ago