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Kazeer [188]
3 years ago
12

Evaluate -15cos60°. A. -0.5 B. -7.5 C. -14.5

Mathematics
1 answer:
kipiarov [429]3 years ago
8 0

Answer:

B

Step-by-step explanation:

make sure calculator is in degrees mode and insert equation to get -7.5

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Use the picture below.
Flauer [41]

Answer:

x = 2.67°

GKJ = 40°

Step-by-step explanation:

Angle HKJ = 6x + 4

Angle HKG = 9x - 4

Segment bisects Angle GKJ, it means that angle HKJ is the same as angle HKG.

You have the measure of both angles in terms of x.

Angle HKJ = Angle HKG

6x + 4 = 9x - 4

4 + 4 = 9x - 6x

8 = 3x

2.67 = x

Angle HKJ:

6(2.67) + 4 = 20°

Angle HKG:

9(2.67) - 4 = 20°

Angle GKJ = HKJ + HKG = 20 + 20 = 40°

6 0
3 years ago
what is the slope of the line that passes through the points (-8,3) and (-8,2). write your answer in the simplest form​
Fantom [35]

Answer:

0

Step-by-step explanation:

The slope is 1/0, and that equals 0.

7 0
3 years ago
Answer it for 5 starr review
tatyana61 [14]
The answer is C or The y-intercept of the line will change from positive to negative
4 0
3 years ago
Please help!! markup and markdown word problem.
12345 [234]

Step-by-step explanation:

"markup" contains "up". so, the price goes "up". this is actually increasing the price (e.g. by calculating the profit margin of selling an item on top of the cost of buying the item from the manufacturer).

"markdown" contains "down". so, the price goes "down". e.g. with discounts.

here we have a markup. it is 150%.

that means the price goes up by 150% compared to the original cost.

so, the computer game costs in the store

the original cost + 1.5× original costs

25 + 1.5×25 = 2.5×25 = $62.50

3 0
3 years ago
Help!! I’ll give brainliest!!
UNO [17]

Answer:

A. -1

Step-by-step explanation:

To find the slope, subtract the x-coordinates, subtract the y-coordinates, lastly, divide the differences.

(3,1) (4,0)

3 - 4 = -1

1 - 0 = 1

-1 ÷ 1 = -1

-1 is the slope.

4 0
3 years ago
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