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Oksanka [162]
3 years ago
14

Please help thank you so much if you do

Mathematics
1 answer:
LekaFEV [45]3 years ago
6 0

Answer:

400

Step-by-step explanation:

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Answer:

7.2

0.76

6.4

thats the answer

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Find the equation of a line that passes through points (1, -8) and (4, 4).
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Answer:

D igjdghhhgghgjgyigtyytttttrttuu

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y is inversely proptional to x when y = 7, x = 9 a) work out an equation connecting y and x b) work out the value of y when x =
OLga [1]

Answer:

a) yx=63

b) y=3

Step-by-step explanation:

a)

yx=k (inverse formula)

7(9)=k

63=k

b)

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3 years ago
On a coordinate plane, triangles R S T and L M N are shown. Triangle R S T has points (5, 5), (2, 1), and (1, 3). Triangle L M N
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3 years ago
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What is the length of EF in the triangle? Show your work. HELP!
Zinaida [17]

The length of EF in the given triangle is 8.80 m.

Step-by-step explanation:

Step 1:

In the given triangle, the opposite side's length is 16.2 m, the adjacent side's length is x m while the triangle's hypotenuse measures 16.2 m units.

The angle given is 90°, this makes the triangle a right-angled triangle.

So first we calculate the angle of E and use that to find x.

Step 2:

As we have the values of the length of the opposite side and the hypotenuse, we can calculate the sine of the angle to determine the value of the angle of E.

sinE = \frac{oppositeside}{hypotenuse}  =\frac{13.6}{16.2} = 0.8395.

E = sin^{-1} (0.8395), E = 57.087.

So the angle E of the triangle DEF is 57.087°.

Step 3:

As we have the values of the angle and the hypotenuse, we can calculate the cos of the angle to determine x.

cos E = \frac{adjacentside}{hypotenuse} = \frac{x}{16.2} .

cos(57.087) = 0.5433, x = 16.2 (0.5433) = 8.8014.

Rounding this off to the nearest hundredth, we get x = 8.80 m.

8 0
3 years ago
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