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dimulka [17.4K]
3 years ago
11

Simplify 7(x + 2) +12.​

Mathematics
1 answer:
tester [92]3 years ago
5 0
Answer: 7x+26

Explanation: 7•x= 7x
7•2=14
7x+14+12=7x+26
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19. Two angles are supplementary. The measure of one angle is four times the measure of the other angle. Find the measure of eac
Marysya12 [62]

36 and 144

Explanation

Two Angles are Supplementary when they add up to 180 degrees

Step 1

Let

x= angle 1

y= angle2

The measure of one angle is four times the measure of the other angle,then

\begin{gathered} \text{angle}1=4\cdot\text{angle}2\text{    } \\ x=4y\text{   Equation(1)} \end{gathered}

x and y are supplementary angles , then

x+y=180\text{   Equation (2)}

Step 2

use Equation (1) and (2) to find x and y

\begin{gathered} x=4y \\ x+y=180 \end{gathered}

replace Equation (1) in Equation (2)

\begin{gathered} 4y+y=180 \\ 5y=180 \\ y=\frac{180}{5} \\ y=36 \end{gathered}

replace the value of y= 36 in equation (1) to find x

\begin{gathered} x=4y \\ x=4\cdot36 \\ x=144 \end{gathered}

Hence, the answer is 36 and 144

8 0
1 year ago
You buy 3 tickets for $ 48 total for the jazz concert on Friday night. Your friend buys 2 tickets for $36 total for the jazz con
yKpoI14uk [10]

Answer:

Friday night.

Less expensive.

Step-by-step explanation:

Cost of  1 ticket on  Friday = 48/3 = $16.

Cost on Saturday =   36 / 2 = $18.

Now 96 / 6 = $16 so the brother and his friends will have to go to the Friday concert. From the above costs we see that they did buy the less expensive ticket.

5 0
3 years ago
What is the slope of the line between (−4, 4) and (−1, −2)?<br><br> a. 1<br> b. 2<br> c.−2<br> d. −1
Vikki [24]
M= \frac{ Y_{2}- Y_{1} }{X_{2}-X_{1}}

m= (-2 - 4) / (-1 - -4)
m= -6 / (-1 + 4)
<span>m= -6 / 3
</span>m= -2

the slope is -2 (C.)
7 0
3 years ago
Read 2 more answers
9. Which expression is equivalent to 14(8x−36)+2x? (1 point)
creativ13 [48]

Answer:

Step-by-step explanation:

14(8x-36)+2x

112x -504 +2x

114x-504

6 0
3 years ago
8.2.AP-7
siniylev [52]

Answer:

c ≈ 40

Step-by-step explanation:

Using the sine ratio in the right triangle

sin40° = \frac{opposite}{hypotenuse} = \frac{BC}{AC} = \frac{26}{c} ( multiply both sides by c )

c × sin40° = 26 ( divide both sides by sin40° )

c = \frac{26}{sin40} ≈ 40 ( to the nearest whole number )

7 0
3 years ago
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