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jekas [21]
3 years ago
10

Solve for x Help me please

Mathematics
1 answer:
ozzi3 years ago
5 0

Answer:

x = 42.5

Step-by-step explanation:

A triangle inscribed inside of a circle using the diameter of the circle as it's hypotenuse is a right triangle ( a 90 degree triangle ) where the angle opposite of the hypotenuse is the 90 degree angle ( angle C )

Hence angle C = 90

If angle C = 2x + 5

Then 2x + 5 = 90

Notice that we just created an equation that we can use to solve for x

We now solve for x algebraically

2x + 5 = 90

Step 1 subtract 5 from both sides

2x + 5 - 5 = 90 - 5

Outcome: 2x = 85

Step 2 divide both sides by 2

2x/2 = 85/2

Outcome: x = 42.5

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What will the 6% sales tax be on purchases totalling $145.50?
r-ruslan [8.4K]
Simply find 6%  of $145.50

That is 6/100  * 145.5

=  0.06 * 145.5.    Use a calculator

= 8.73.

Sales tax is $8.73.  C.
5 0
4 years ago
What is the value of the underline digit 6 6,560
egoroff_w [7]
6,000 because 6 it in the thousands place
8 0
3 years ago
Find the value of x. Round to the nearest degree.
dmitriy555 [2]

Answer:

a. 53

Step-by-step explanation:

The side with length 15 is opposite the right angle, so it is the hypotenuse of the right triangle.

For angle x, the side measuring 12 is the opposite leg.

Our 3 items of interest are: angle, opposite leg, hypotenuse.

The trig ratio that relates the opposite leg to the hypotenuse is the sine ratio.

sin x = opp/hyp

sin x = 12/15

sin x = 0.8

Now we take the inverse sine of 0.8 to find the measure of the angle.

x = sin^(-1) 0.8 = 53 deg

4 0
3 years ago
Read 2 more answers
The scale on a map says 1 inch = 25 miles. If two towns are 3 1/2
defon

Answer:

87.5 miles

Step-by-step explanation:

Distance between points = 3 1/2 × 25 = 87.5 miles

8 0
2 years ago
Delia, Edwin and Freya share some money in the ratio 5 : 7 : 8. Freya’s share is £1600. How much money did they share?
FrozenT [24]

Answer:

To find how much money they shared first find the total parts

Which is

5 + 7 + 8 = 20

Deila's share is

5 /20 × £1600

= 1/4 × £1600 = £ 400

Edwin's share is

7/ 20 ×£1600 = £560

Freya's share is

8/20 × £1600

= 2/5 × £1600 = £640

Hope this helps you

3 0
3 years ago
Read 2 more answers
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