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Sonja [21]
2 years ago
15

HELP PLEASE! (Look at the picture!!!!)

Mathematics
1 answer:
Marianna [84]2 years ago
7 0

Answer:

8

Step-by-step explanation:

The radius is part of a 3-4-5 special right triangle.

The diameter is two times the radius, so 4*2=

<em>I hope this helps! :)</em>

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Find the value of x 3(4x+3)
Dimas [21]

3(4x+3)=12x+9

i don't know what do you need,

if roots, let 12x+9=0

the root is x=-3/4

8 0
3 years ago
Please help! thank you :)
omeli [17]
Hi I’m not the best at math
But I think the answer is -4.2
4 0
2 years ago
How many inches are in 200 meters?<br><br> Enter your answer in the box.<br><br> 1 m ≈ 39.37 in.
vova2212 [387]

Answer:

200 m = 7874.02 in.

Step-by-step explanation:

Hope that my answer helped. If my answer did help you then would you be kind to give me brainliest because I've been trying to rank up. If not then it's totally fine. Thanks :)

5 0
2 years ago
Read 2 more answers
Suppose a chemist combines a 25% acid solution and a 50% acid solution to make 40 L of 45% acid solution. How many liters of eac
lesantik [10]

Answer:

The number of liters for :

Acid solution a = x = 8 liters

Acid solution b = y = 32 liters

Step-by-step explanation:

Let us represent:

The number of liters for :

Acid solution a = x

Acid solution b = y

Suppose a chemist combines a 25% acid solution and a 50% acid solution to make 40 L of 45% acid solution.

x + y = 40 ...... Equation 1

x = 40 - y

25% × x + 50% × y = 45% × 40

0.25x + 0.5y = 18...... Equation 2

We substitute, 40 - y for x in Equation 2

0.25(40 - y)+ 0.5y = 18

10 - 0.25y + 0.5y = 18

- 0.25y + 0.5y = 18 - 10

0.25y = 8

y = 8/0.25

y = 32 Liters

Solving for x

x = 40 - y

x = 40 - 32

x = 8 Liters.

Hence:

The number of liters for :

Acid solution a = x = 8 liters

Acid solution b = y = 32 liters

5 0
3 years ago
What formulas do I use to find surface area of cube, rectangular prism, trapezodial prism, triangular prism
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Cube: Area cubed
Rectangular Prism: A=(wl+hl+hw)

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