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erastova [34]
3 years ago
5

What is this??????????????

Mathematics
1 answer:
Nitella [24]3 years ago
3 0

Answer:15. C

16. D

17.B

18.A

Step-by-step explanation:

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Jessica has two strings. the first string measures 80 cm and the second string measures 64cm. she wants to cut the strings into
omeli [17]
<span>The highest common denominator between 80 and 64 is 16. This means no string can be cut longer than 16 inches for them all to have the same length.</span>
5 0
3 years ago
Find the formula for the area A and the perimeter P of the shape shown find the area and perimeter when R is 5 cm find R when A
Ghella [55]

Answer:

1)Area; A = ¼πr²

Perimeter; P = πr/2 + 2r

2)A = 19.63 cm²

P = 17.85 cm

3) r = 8.885 cm

4) r = 14 cm

Step-by-step explanation:

This is a quadrant of a circle. Thus;

Area of a circle is πr². A quadrant is a quarter of a circle. Thus;

Formula for Quadrant Area is; A = ¼πr²

A) Perimeter of a circle is 2πr. Thus, perimeter of a quadrant is a quarter of the full circle perimeter.

Formula for the quadrant perimeter in the image given is;

P = 2πr/4 + 2r

P = πr/2 + 2r

B) When r is 5 cm;

A = ¼π(5)²

A = 19.63 cm²

P = π(5)/2 + 2(5)

P = 17.85 cm

C) when A is 100cm²:

¼πr² = 100

r² = 100 × 4/π

r² = 78.9358

r = √78.9358

r = 8.885 cm

D) when P = 50 cm.

50 = πr/2 + 2r

50 = (½π + 2)r

r = 50/(½π + 2)

r = 14 cm

6 0
3 years ago
How can I work this problem in adding integers with counters 5 + (-7)
Monica [59]

\huge\mathsf\green{Answer}

5 + ( - 7) \\ 5 - 7 =  - 2

<h3>hope it would be helpful </h3>
4 0
3 years ago
X=3 is a factor of x^3+3x^2-7x+19.
Andrew [12]

Answer:

52

Step-by-step explanation:

3^3+3(3)^2-7(3)+19

27+27-21+19

54-2

52

Hope this helps

7 0
4 years ago
A school in New Zealand collected data about the employment status of the mother and father in two-parent families. The two-way
Natalka [10]

Answer:A

Step-by-step explanation: 14% of the mothers work part-time in families where the father works part-time while 7% of the mothers work part-time in families where the father is not working.

8 0
3 years ago
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