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Mumz [18]
3 years ago
15

Find area of a circle whose diameter 21cm

Mathematics
1 answer:
mel-nik [20]3 years ago
5 0

Answer:

346.36 cm ^2

Step-by-step explanation:

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Clare used 20% less oil this month than last month. If she used 155 tablespoons of oil last month, how many tablespoons did she
ZanzabumX [31]

Answer:

124 tablespoons

Step-by-step explanation:

Oil used last month = 155 tablespoons

Oil used this month = 155 - 20%(155)

By simplifying

Oil used this month = 155 - 0.2(155)

Oil used this month = 155 - 31

Oil used this month = 124 tablespoons

i hope it will help you!

6 0
3 years ago
70 POINTS! PLEASE HELP! Explain the difference between the following equation formats: Slope-Intercept, Point-Slope and Standard
katrin2010 [14]

Answer and Step-by-step explanation:

1.  slope intercept

2.  point-slope form

3.  standard

Explanation:

1.   A <u>slope intercept form</u> equation is when it's set up as y = m x + b

m = slope  

b = y-intercept

2.   <u>A point-slope form</u> is when a line passes through a point

and the equation is set up as  y −b = m ( x−a)

m = slope

(a, b) A point that the line passes through

3. <u>standard lope form</u> is when the equation is set up as

Ax + By = C

7 0
4 years ago
I need to know what to do and the answer
Anni [7]

You would take 180•15% to get 27 then you would subtract 180-27 to get 153. After you do the first you would do 200•20% to get 40 200-40=160 so the cheaper one would be the 180 because about 15% discount it’s 153 and 160>153
5 0
3 years ago
Find the measure of each angle (in degrees) of
d1i1m1o1n [39]

Answer:

∠A = 88°

∠B = 92°

∠C = 88°

∠D = 92°

Step-by-step explanation:

∠A + ∠B = 180°

(2x + 4) + (3x - 34) = 180

reduce:

5x - 30 = 180

5x = 210

x = 42

∠A = 2(42) + 4 = 88°

∠B = 3(42) -34 = 92°

∠C = ∠A = 88°

∠D = ∠B = 92°

3 0
3 years ago
What is the place value of the digit 9 in the number 69143
marshall27 [118]
It is the thousands place
7 0
3 years ago
Read 2 more answers
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