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SSSSS [86.1K]
3 years ago
5

Help please!!!!!!!!!!!

Mathematics
1 answer:
Lisa [10]3 years ago
8 0

Answer:

x = 7

Step-by-step explanation:

If ∠ABD has a measure of 3x and ∠ABD is half of ∠ABC, then angle ABC has a measure of 6x. If ∠ABC measures 42°, then 6x = 42.

Divide both sides by 6.

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What is the distance between -9 and 14 on a number line?
Mademuasel [1]

-9 to 0 is 9 and 0 to 14 is 14.

Total distance = 9 +14 = 23

6 0
3 years ago
Divide using synthetic division. ( x^4-12x^2-9)/(x+3)
Firdavs [7]

Answer:

x^3 - 3x^2 - 3x + 9 + (-36/(x+3))

OR

x^3 - 3x^2 - 3x + 9 - (36/(x+3))

Step-by-step explanation:

First set the divisor equal to 0:

x + 3 = 0

Subtract 3 from both sides

x = -3

This is what you'll divide the dividend by in synthetic division.

Take the coefficents of each term in the dividend. Do not forget the 0 placeholders:

x^4 + 0x^3 - 12x^2 + 0x -9

Coefficents: 1. 0.  -12. 0 -9.

Please see the image for the next steps.

The remainder is -36. Put the remainder over the divisor and add it to the polynomial (shown in image)

-36/(x+3)

6 0
3 years ago
A triangle has a base of 3 2/5 inches and an area of 5 1/10 square inches. Find the height of the triangle.
allsm [11]

Answer:

Step-by-step explanation:

44

5 0
3 years ago
A)
Irina18 [472]

Answer:

The primary colors of light are red, green, and blue. If you subtract these from white you get cyan, magenta, and yellow. Mixing the colors generates new colors as shown on the color wheel, or the circle on the right. Mixing these three primary colors generates black.Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
PLEASE HELP OMG the side lengths of triangle MNO are given: MN=5, NO=4, OM=2.5. the triangle is dilated by a scale factor of k w
elena-14-01-66 [18.8K]

The value of the scale factor k, is 1.5

<h3>Perimeter</h3>

The perimeter of a shape is the sum of the side lengths of the shape

<h3>Dimensions </h3>

The dimensions of the triangle MNO are given as:

MN = 5

NO = 4

OM = 2.5

Calculate the perimeter of the triangle as follows:

MNO=5 + 4 +2.5

MNO=11.5

Divide 17.25 by 11.5 to calculate the scale factor (k)

k = \frac{17.25}{11.5}

k = 1.5

Hence, the scale factor is 1.5

Read more about scale factors at:

brainly.com/question/25657743

7 0
2 years ago
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