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Firlakuza [10]
3 years ago
14

Write an equation for the description.

Mathematics
1 answer:
Ainat [17]3 years ago
6 0

Answer:

She needs $30.

Step-by-step explanation:

170 minus 140 is 30.

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Who knows what pi(3.14)x-99.29?
MrMuchimi

Answer:

Pi also appears in the calculations to determine the area of an ellipse and in finding the radius, surface area, and volume of a sphere.  

Step-by-step explanation:

The number represented by pi (π) is used in calculations whenever something round (or nearly so) is involved, such as for circles, spheres, cylinders, cones, and ellipses. Its value is necessary to compute many important quantities about these shapes, such as understanding the relationship between a circle’s radius and its circumference and area (circumference=2πr; area=πr²).

Our world contains many round and near-round objects; finding the exact value of pi helps us build, manufacture, and work with them more accurately.

6 0
2 years ago
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Please help, will mark brainliest<br><br>50 points
liraira [26]

Answer:

(-6,8)

Step-by-step explanation:

2x + 9y = 60

-9x + y = 62 --> y = 9x + 62 --> 2x + 9(9x + 62) = 60 -->

2x+ 81x + 558 = 60 -->

83x + 558 = 60 -->

83x = -498 -->

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y = 9(-6) + 62 -->

y = 8

3 0
3 years ago
Read 2 more answers
4x +6 &lt; -6 show steps​
rewona [7]
4x + 6 < -6
- 6 -6

4x < -6
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4 4

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6 0
3 years ago
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Find f(-2) if f(x) = 4x + 8
zzz [600]

Answer:

0

Step-by-step explanation:

Use the hint lol
Step 1: Plug in -2 into the equation.
f(-2) = 4(-2) + 8


Step 2: Multiply
f(-2) = -8 + 8

Step 3: Add

f(-2) = 0

5 0
1 year ago
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This is not an equation but if I get a 100/100 on a lab and I have a C in the same class what will my grade be?
alukav5142 [94]

Answer:

probably a B.

Step-by-step explanation:

5 0
3 years ago
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