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Inga [223]
3 years ago
11

6.

Mathematics
2 answers:
Whitepunk [10]3 years ago
4 0

Answer:

28°

Step-by-step explanation:

For this problem, we are given the leg length opposite the angle x and the hypotenuse. This perfectly describes the trig function, sine. We can set up an equation:

opposite / hypotenuse = sin(x°)

We can substitute in the sides:

7 / 15 = sin(x°)

Now, to find x, we can evaluate the inverse of sin or arcsin on the ratio 7 / 15

arcsin(7 / 15) = x° = 27.81813928°

This rounds to 28°

coldgirl [10]3 years ago
3 0

Step-by-step explanation:

\sin(x)  =  \frac{7}{15}  \\ x =  { \sin}^{ - 1} ( \frac{7}{15} ) \\ x  = 27.8 \degree

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Lea needs at least $240 to buy new headphones. She has already saved $30. She earns $14 per car that she washes. What is the lea
Ne4ueva [31]

Answer:

15 cars

Step-by-step explanation:

240-30=210

210/14=15 cars

7 0
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What is the balance on an amortized loan of $110,000 after the first payment if the interest rate is 5.5% with a monthly P&I
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3 0
3 years ago
An equation is shown below: 5(2x-8) +15 = -15 write the steps you will use to solve the equation and explain each step
faust18 [17]

Answer:

5(2x-8)+15=-15

10x-40+15=-15

10x-25=-15

    +25   +25 (add 25 to both sides)

____________

10x=10

divide by 10 on both sides

x=1

6 0
3 years ago
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A cereal box is 6.2 inches high, 8 inches long, and 2.5 inches wide. What is the volume
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Answer:

124

Step-by-step explanation:

v = l×w×h

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4 0
3 years ago
Hi need help on hw plz help me out my questions is - a rectangle has a length of 14cm and width 9.5cm the length increased by 6%
sweet-ann [11.9K]

Answer:

Part a) 21.9\%

Part b) 82.03\%

Step-by-step explanation:

we know that

The original area of rectangle is equal to

A=(14)(9.5)\ cm^{2}

so

if  the length is increased by 6% and the width is by 15%

then

the new area is equal to

A=[1.06(14)][1.15(9.5)]\ cm^{2}

A=(1.06*1.15)(14)(9.5)\ cm^{2}

A=(1.219)(14)(9.5)\ cm^{2}

The new area is (1.219) times the original area

Part a) Calculate the percentage change in area of the rectangle

1.219-1=0.219

convert to percentage

0.219*100=21.9\%

Part b) what is the original area as a percentage of the increased area of the rectangle?

Divide the original area by the increased area

\frac{(14)(9.5)}{(1.219)(14)(9.5)} =\frac{1}{1.219} \\ \\=0.8203

Convert to percentage

0.8203*100=82.03\%

8 0
4 years ago
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