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velikii [3]
3 years ago
9

A rectangular painting on a wall at Dolores Huerta School has an area of 69 square feet. The painting is 3 feet wide.

Mathematics
1 answer:
____ [38]3 years ago
4 0

Answer:

Length = 23 feet

Step-by-step explanation:

Formula to get the area of a Rectangle

Area = Length x width ( Length x breadth)

if Area = 69 feet and Width = 3 feet Length = x

Area = Length x Width

substitute the values

69 square feet = X feet x 3 feet

69 = 3x

69/3 = 3x/3

23 = X

Length = 23 feet

Proof: 23 X 3 = 69 ✓

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vladimir1956 [14]
Just substitute the value of x from equation 2 in equation 1, 
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6y = 22 - 12
y= 10/6
y = 5/3

In short, Your Answer would be Option Option B) (22, 5/3)

Hope this helps!
6 0
3 years ago
What is the circumference of a circle with a diameter of 5 feet? use 3.14 for pi
artcher [175]

Answer:

15.7

Step-by-step explanation:

Circumference= πd

d= Diameter

7 0
3 years ago
Suppose a batch of metal shafts produced in a manufacturing company have a standard deviation of 1.5 and a mean diameter of 205
lawyer [7]

Answer:

the probability is 0.0750

Step-by-step explanation:

The computation of the probability is shown below;

The mean of x is

= 1.5 ÷ √79

= 0.1688

Now the probability is

= P(Z < -0.3 ÷ 0.1688) + P(\bar{x} > 0.3 ÷ 0.1688)

= P(Z < -1.78) + P(Z > 1.78)

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hence, the probability is 0.0750

3 0
3 years ago
B = 4 and c = -5, evaluate b 2 - c 2
NISA [10]

Hey!

-------------------------------------------------

Steps To Solve:

~Substitute

(4)2 - (-5)2

~Multiply

8 - (-10)

~Subtract

18

-------------------------------------------------

Answer:

18

-------------------------------------------------

Hope This Helped! Good Luck!

4 0
3 years ago
Read 2 more answers
What two numbers multiple to -3468 and adds to 24
Alex777 [14]

Answer:

72.1 and -48.1

Step-by-step explanation:

I set up the equations x + y = 24 and x*y=-3468. Then I substituted for y and used the quadratic formula to come to two numbers rounded to about 72.1 and -48.1. Hope that helps :)

4 0
3 years ago
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