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Vera_Pavlovna [14]
4 years ago
10

A right triangle ABC is shown. Use any trigonometric ratio, find the measure of angle A to the nearest degree.

Mathematics
1 answer:
EleoNora [17]4 years ago
4 0

Answer:

A= 62 deg

Step-by-step explanation:

tan A = CB / AB

tan A = 15 / 8

A = tan^{-1} (15/8)  (use calculator)

A = 61.93 deg

= 62 deg (nearest degree)

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What is the solution of the proportion? 6/a = 18/27
Marta_Voda [28]

Answer:

a=9

Step-by-step explanation:

To solve this proportion, we have to get the variable, a, by itself.

First, cross multiply.

6/a=18/27

Multiply the denominator of the first fraction by the numerator of the second, and the numerator of the second by the denominator of the first.

a*18=6*27

18a=162

Now, 18 and a are being multiplied. In order to get a by itself, perform the opposite of what is being done. They are being multiplied, so the opposite would be division. Divide both sides by 18.

18a/18=162/18

a=162/18

a=9

So, the proportion, with 9 substituted in for a, will be:

6/9=18/27

6 0
3 years ago
Read 2 more answers
the driveway in front of the brown house is 35 feet long and the driveway of the red house is 7 yards and 9 feet long. which hou
Zigmanuir [339]

Answer:

The brown house has the longer driveway

Step-by-step explanation:

So we would need to convert both of these units of measurements to feet in order to compare them.

  • There are <u>3 feet in 1 yard</u>

Converting yards to feet, wee need to multiply the number of yards by 3

  • 7 yards = 21 feet

Since the red house has a driveway of 7 yards and 9 feet, we can rewrite this to 21 feet + 9 feet, which is equivalent to 30 feet

Now comparing the two driveways, the 35 ft-long brown driveway is 5 feet longer than the 30 ft-long red driveway.

The brown house has the longer driveway

8 0
3 years ago
Solve the equation −7t−1=20
shutvik [7]

Answer:

t=-3

because if you multiply -7 by 3 and then subtract, you will get 20

6 0
3 years ago
Read 2 more answers
Malcolm bought 6 bowls for $13.20. What is the unit rate?
Fofino [41]
2.20 because 13.20/6=$2.20

6 0
3 years ago
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Which is the slope of the like represented by the equation 2x+3y=-12
Burka [1]

slope = - \frac{2}{3}

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y-intercept )

rearrange 2x + 3y = - 12 into this form

subtract 2x from both sides

3y = - 2x - 12 ( divide all terms by 3 )

y = - \frac{2}{3} x - 4 ← in slope- intercept form

with slope m = - \frac{2}{3}


4 0
3 years ago
Read 2 more answers
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