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2 years ago

8

The area of a circle is 98. 74cm2. Find the length of the radius rounded to 2 DP

1 answer:

olga nikolaevna [1]2 years ago

5 0

Answer:

I believe it is 15.72cm.

Step-by-step explanation:

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Is 3 over five the same as 3.5.

Ilia_Sergeevich [38]

It is the same as 3·5·

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3 years ago

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What is the product?<br> (2x - 1)(x+4)<br> 2²-4<br> 2x²+4<br> 2x^2+7x-4<br> 2x^2-7x-4

SVETLANKA909090 [29]

2x^2 -7x -4 is the answer

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3 years ago

PLS HELP FIRST CORRECT ANSWER GETS BRAINLEIST

Wewaii [24]

Answer: 168cm^2

Step-by-step explanation:

lets split this into two shapes:

a rectangle and a triangle

Formulas:

rect: b * h

Tri: (b*h)/2

Solve:

12 * 10 = 120

(12*8)/2 = 48

120 + 48 =

168cm^2

4 0

2 years ago

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a seed company has a test plot in which it is testing the germination of a hybrid seed, They plant 50 rows of 40 seeds per row.

ziro4ka [17]

Answer:

Mean = $\sum x P(x) = 36.86$

Standard deviation = $\sum x^2P(X)=1360.9$

Step-by-step explanation:

x P(x) $x \times P(x)$ $x^2 \times P(x)$

33 0.02 0.66 21.78

34 0.06 2.04 69.36

35 0.1 3.5 122.5

36 0.2 7.2 259.2

37 0.24 8.88 328.56

38 0.26 9.88 375.44

39 0.1 3.9 152.1

40 0.02 0.8 32

1 36.86 1360.9

We are supposed to find mean and standard deviation

Mean = $\sum x P(x) = 36.86$

Standard deviation = $\sum x^2P(X)=1360.9$

7 0

3 years ago

32 ÷ 4 x (16 x 1/2) -2

Anika [276]

32 ÷ 4 x (16 x 1/2) -2

= 32 ÷ 4 × 8 -2

= 8 × 8 - 2 = 64-2

= 62

3 0

2 years ago

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