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Helga [31]
3 years ago
11

What is 3x+2x+6=-18​

Mathematics
2 answers:
maksim [4K]3 years ago
6 0

Answer:

x = -4.8

Step-by-step explanation:

combine like terms

3x + 2x + 6 = -18

5x + 6 = -18

isolate the terms with the x variable

5x + 6 - 6 = -18 - 6

5x = -24

isolate x

5x/5 = -24/5

x = -4.8

gregori [183]3 years ago
6 0

Answer:

EXACT FORM:   x = -24/5

DECIMAL FORM:   x = -4.8

MIXED NUMBER FORM:   x = -4 4/5

I hope this helped you!!

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Convert the rectangular coordinates (4√3,−4) to polar form. Let r>0 and 0≤θ<2π.
spayn [35]

Answer:

(8,150)

Step-by-step explanation:

Polar form is in,

(r,theta).

To find r, apply pythagorean theorem using both coordinates to find r.

(4 \sqrt{3} ) {}^{2}  + ( - 4 {}^{2} ) =  {r}^{2}

48 + 16 =  {r}^{2}

r = 8

To find theta, since we know the opposite and adjacent side, apply the tangent function.

\tan(x)  =  \frac{ - 4}{4 \sqrt{3} }

Apply inverse tan function

\tan {}^{ - 1} ( \frac{ - 4}{4 \sqrt{3} } )  =  - 30

Since the degrees have to be in between 0 and 360. Add 180 to -30.

- 30 + 180 = 150

So the answer is

(8,150).

3 0
3 years ago
Write an expression that gives the area of the shaded region in the figure.
Jet001 [13]

Answer:

Area = 88 square units

Step-by-step explanation:

The length of the blue rectangle can be found by subtracting 15 and 4, which equals 11. The width of the blue rectangle can be found by subtracting 6 from 14, which equals 8.

area = length x width

area = 11 x 8

area = 88 square units

6 0
4 years ago
Kwasi bought `15` postage stamps for `\$8.25`. All stamps cost the same amount. How many stamps can Kwasi purchase with $22
Debora [2.8K]

The number of stamps and the cost are illustrations of unit rates

40 stamps would cost $22

The cost of 15 postage stamps is $8.25

Start by calculating the unit rate of the stamps.

Unit = \frac{8.25}{15}

Unit = 0.55

So, the number of stamps for $22 is calculated by dividing $22 by the unit rate.

So, we have:

Number=\frac{22}{0.55}

Number=40

Hence, 40 stamps would cost $22

Read more about unit rates at:

brainly.com/question/396443

7 0
3 years ago
6y + 3y. Plssssssssssssssssss help me
Airida [17]

This is very simple math let me show you:

Add similar elements:

6y + 3y = 9y

Your Answer Is 9y

plz mark me as brainliest :)

7 0
3 years ago
Read 2 more answers
triangle MNO, M equals 20, n = 14, and the measure of angle M equals 51°. How many distinct triangles can be formed given these
Artyom0805 [142]
The given angle is opposite the longest given side, so there is 1 solution.

5 0
3 years ago
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