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Stella [2.4K]
3 years ago
15

HELP ASAP PLEASE I need it this doesn’t make sense

Mathematics
1 answer:
Gala2k [10]3 years ago
8 0

Answer:

good luck i just answered for the 5 points

Step-by-step explanation:

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Solve for the value of x 3x - 9 + 12 - 6x = -18
Zinaida [17]

Answer:

x=7

Step-by-step explanation:

3x-9+12-6x=-18

now let’s put together the like terms

3-3x=-18

-3x=-21

now we divide -21 By -3

the result is

x=7

5 0
4 years ago
Read 2 more answers
In right triangle XYZ, ∠Y is the right angle and m∠X = 60°. If YZ = 4, what is XY?
daser333 [38]

Answer:

B is the best answer

The question is illustrated with the attached figure.

Required

Determine XY

To solve for XY, we make use of the tan function, which states that:

tan\theta = \frac{Opposite}{Hypotenuse}tanθ=

Hypotenuse

Opposite

In this case:

tan\ 60= \frac{YZ}{XY}tan 60=

XY

YZ

Substitute 4 for YZ

tan\ 60= \frac{4}{XY}tan 60=

XY

4

Make XY the subject

XY= \frac{4}{tan\ 60}XY=

tan 60

4

tan\ 60 =\sqrt 3tan 60=

3

So, the expression becomes:

XY = \frac{4}{\sqrt 3}XY=

3

4

Rationalize:

XY = \frac{4 * \sqrt 3}{\sqrt 3 * \sqrt 3}XY=

3

∗

3

4∗

3

XY = \frac{4\sqrt 3}{3}XY=

3

4

3

6 0
3 years ago
The ratio of 1 to 3 is
andreev551 [17]
1:3 that's so easy like bruh
3 0
4 years ago
Read 2 more answers
Rewrite in simplest terms: -5a – 86-8a + 1)
Mandarinka [93]

Answer:

- 13a - 85

Step-by-step explanation:

Given

- 5a - 86 - 8a + 1 ← collect like terms

= (- 5a - 8a ) + (- 86 + 1)

= - 13a + (- 85)

= - 13a - 85

5 0
3 years ago
Read 2 more answers
A 4:1 scale drawing of a bearing is shown on an A-size print. Using a ruler, you measure the inside diameter of the part on the
Pani-rosa [81]

Answer:

A. 6.0

Step-by-step explanation:

We have been given that the the inside diameter of the part on the paper is 1.50 inches.

We have been given that scale is 4:1 for actual size to drawing side.

\text{Scale}=\frac{\text{Actual size}}{\text{Map size}}=\frac{4}{1}

Upon substituting 1.50 in our given proportion, we will get:

\frac{\text{Actual size}}{1.50\text{ inches}}=\frac{4}{1}

\frac{\text{Actual size}}{1.50\text{inches}}\times 1.50\text{ inches}=\frac{4}{1}\times 1.50\text{ inches}

\text{Actual size}=4\times 1.50\text{ inches}

\text{Actual size}=6.0\text{ inches}

Therefore, the actual size is 6.0 inches and option A is the correct choice.

4 0
3 years ago
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