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True [87]
3 years ago
12

Suppose y varies as x. If y= -7 when x = -14, find x when y = 10.

Mathematics
1 answer:
Zina [86]3 years ago
4 0

Answer:

x = 20

Step-by-step explanation:

-7 (2) = -14 so...

10 (2) = 20

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3x + 2 = 11 what is x?
nevsk [136]

Answer:

x = 3

Step-by-step explanation:

3x + 2 = 11

      -2     -2

3x = 9

÷3    ÷3

x = 3

7 0
2 years ago
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Show that the following statement is an identity by transforming the left side into the right side. sin θ (sec θ + csc θ) = tan
ExtremeBDS [4]

Answer:

Step-by-step explanation:

Required to prove that:

Sin θ(Sec θ + Cosec θ)= tan θ+1

Steps:

Recall sec θ= 1/cos θ and cosec θ=1/sin θ

Substitution into the Left Hand Side gives:

Sin θ(Sec θ + Cosec θ)

= Sin θ(1/cos θ  + 1/sinθ )

Expanding the Brackets

=sinθ/cos θ + sinθ/sinθ

=tanθ+1 which is the Right Hand Side as required.

Note that from trigonometry sinθ/cosθ = tan θ

8 0
3 years ago
Solve for x in the equation x2+2x+1= 17.<br> x=-1: V15<br> x=-11/17<br> X=-2=2.5<br> X=-11 13
Shalnov [3]

Answer:

x=-1

Step-by-step explanation:

x^2+2x=16=0

Use the quadratic formula to find the solutions.

−b±√b2−4(ac)/

2a

Substitute the values

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4 0
3 years ago
What is the percent of change in 6 yards to 36 yards
BaLLatris [955]

Answer:

The percent of change in 6 yards to 36 yards is 500% .

Step-by-step explanation:

Formula

Percentage = \frac{Change\ in\ value\times 100}{initial\ value}

Where

Change in value = Final value - initial value

As given

The percent of change in 6 yards to 36 yards.

Final value = 36 yards

initial value = 6 yards

Change in value = 36 - 6

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Put in the formula

Percentage = \frac{30\times 100}{6}

Percentage = \frac{3000}{6}

Percentage = 500%

Therefore the percent of change in 6 yards to 36 yards is 500% .


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3 years ago
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Which inequality is represented by this graph?
Usimov [2.4K]

Answer:

A y<= -1/3x+1

Step-by-step explanation:

6 0
2 years ago
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