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8090 [49]
3 years ago
13

Find x. Round your answer to the nearest tenth of a degree. 15 x 10

Mathematics
2 answers:
inna [77]3 years ago
6 0

Answer:

x is approximately 48.2.

Step-by-step explanation:

Use the trig function of cosine, or adjacent over hypotenuse.

cos theta = adjacent / hypotenuse

Substitute variables.

cos x = 10 / 15

Apply inverse cosine to both sides.

x = cos^-1(10/15)

Evaluate.

x ≈ 48.2

Tju [1.3M]3 years ago
4 0

Answer:

x ≈ 48.2°

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos x = \frac{adjacent}{hypotenuse} = \frac{10}{15} , then

x = cos^{-1} (\frac{10}{15} ) ≈ 48.2° ( to the nearest tenth )

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masha68 [24]

Answer:

Step-by-step explanation:

Observe in the attached image that the final balance in your account on 9/1 is $578.30.

Then:

*On 9/6 he makes a payment of $140.30

*On 9/8, he makes a withdrawal from an ATM of $120

This means that:

$140.30 + $120 = $260.30

Then:

*On 9/18 you receive a deposit of $356.22

This means that:

$356.22

So, we have:

Beginning Balance: $578.30.

Total Withdrawals: $260.30

Total Deposits: $356.22

Final Balance = Beginning balance + Total Deposits - Total Withdrawals

Final Balance= $578.30 + $356.22 - $260.30

Final balance= $674.22

Then:

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9/6        Auto Pay         140.30                       438.00

9/8         ATM               120.0                         318.00

9/18       Deposit                           356.22      674.22

5 0
4 years ago
If angle∠ a and angle∠ b are supplementary angles and angle∠ a is nine nine times as large as angle∠ ​b, find the measures of an
Katarina [22]
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7 0
3 years ago
Evaluate -9x when x = 2
11111nata11111 [884]

Answer:

-18

Step-by-step explanation:

x=2 so,

-9(2) = -18

hope this helps

3 0
3 years ago
Read 2 more answers
One cell phone company charges a $76 sign-up fee and $40 per month. Another cell phone company charges $136 sign-up fee and $20
WARRIOR [948]

Answer:

The cost would be same after 3 months.

Step-by-step explanation:

Given that:

Charges of first company;

Sign up fee = $76

Per month charges = $40

Let,

x be the number of months

y be the total cost.

y = 40x + 76      Eqn 1

Charges of second company;

Sign up fee = $136

Per month charges = $20

y = 20x + 136     Eqn 2

For same cost,

Eqn 1 = Eqn 2

40x + 76 = 20x + 136

40x-20x = 136 - 76

20x = 60

Dividing both sides by 20

\frac{20x}{20}=\frac{60}{20}\\x=3

Hence,

The cost would be same after 3 months.

3 0
3 years ago
What is 6/8 divided by 78/9
aliya0001 [1]
So, when you divide by a fraction, you are basically multiplying by the reciprocal of said fraction. Ergo:
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4 0
4 years ago
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