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Elena L [17]
3 years ago
10

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
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