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Phoenix [80]
3 years ago
11

Hurry please

Mathematics
1 answer:
Monica [59]3 years ago
7 0
The answer to this question is b
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Plz help, I don't need the show all work.
topjm [15]

Answer:

The answer is 108 cm²

Step-by-step explanation:

First, you have to find the height of the parallrelogram using trogonometric formula, sinθ = oppo./hypo. :

oppo. = height

hypo. = 9 cm

θ = 59°

sin 59° = height/9

height = 9 sin 59°

= 7.715 cm (4s.f)

Given that the formula of area of parallelogram is, A = base×height. Then, you can substitute the value into the formula :

base = 14 cm

height = 7.715 cm

A = 14 × 7.715

= 108 cm² (3s.f)

8 0
3 years ago
Read 2 more answers
What is the slope of the line passing through(-7, 8) (-8, 8) is?
Hunter-Best [27]

Answer:

Step-by-step explanation:

(-7, 8) (-8, 8)

(y2 - y1) / (x2 - x1)

(8 - 8) / (-8 + 7)

0 / -1

the slope is 0

you could also see this because the y value doesn't change

if the y value doesn't change the slope is 0, if the x value doesn't change the slope is undefined

3 0
2 years ago
Read 2 more answers
X2 -20x + y^2 - 10y+25=0<br> identify center of the circle and radius
nlexa [21]

Answer:

Center of the circle = (10, 5)

Radius = 10

Step-by-step explanation:

Look at the picture

5 0
3 years ago
A grocer wants to mix two kinds of coffee. One kind sells for $0.85 per pound, and the other sells for $2.70
Sedaia [141]

Answer:

x = $0.85 per pound = 19.85 pounds

y = $2.70 per pound = 1.14 pounds

Step-by-step explanation:

Let

x = $0.85 per pound

y = $2.70 per pound

x + y = 21 (1)

0.85x + 2.70y = 19.95 (2)

From (1)

x = 21 - y

Substitute x = 21 - y into (2)

0.85x + 2.70y = 19.95 (2)

0.85(21 - y) + 2.70y = 19.95

17.85 - 0.85y + 2.70y = 19.95

- 0.85y + 2.70y = 19.95 - 17.85

1.85y = 2.1

y = 2.1 / 1.85

y = 1.14

Substitute y = 1.14 into (2)

0.85x + 2.70y = 19.95

0.85x + 2.70(1.14) = 19.95

0.85x + 3.078 = 19.95

0.85x = 19.95 - 3.078

0.85x = 16.872

x = 16.872 / 0.85

x = 19.85

x = $0.85 per pound = 19.85 pounds

y = $2.70 per pound = 1.14 pounds

4 0
3 years ago
George did the following problem. See if you can spot the error. HINT: Order of operations was used to solve this problem. - 8 •
Tatiana [17]

Answer:

Step-by-step explanation:

oh yea  he misplaced the 8

5 0
3 years ago
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