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andreev551 [17]
3 years ago
9

Please help! Urgent! Will mark brainliest!

Mathematics
1 answer:
Wewaii [24]3 years ago
7 0

Answer:

Fun Fact: The shortest teletubbie is 6,6  the tallest one is 10 feet

Step-by-step explanation:

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Given the equation 4x + 7 = 3(2x − 5), solve for the variable. Explain each step and justify your process.
MariettaO [177]
Part 1: 4x + 7 = 3(2x - 5) 

4x+7=6x-15 

7=6x-15-4x

 

7=2x-15 

7+15=2x 

22=2x 

22=2x / 2 

x=11 

Part 2: Sam is not correct because <span>he messed up the second step. He added 2x on both sides to get 7x, instead he should have subtracted. </span>

5 0
3 years ago
Please Help! Answer Number 4
faltersainse [42]

Answer:

1485

Step-by-step explanation:

sorry if im wrong

8 0
2 years ago
Need some help with this question please
Serggg [28]

Answer:

\frac{15}{17}

Step-by-step explanation:

  • \cos( \alpha )  =  \frac{ad}{hip}  \\  \\  \sin( \alpha )  =  \frac{op}{hip}

Pythagorean theorem

hip² = op² + ad²

17² = x² + 8²

x² = 17² - 8²

x \:  =  \sqrt{{17}^{2}  -  {8}^{2} }  \\ x =  \sqrt{289 - 64}  \\ x =  \sqrt{225}  \\ x = 15

\sin( \alpha )  =   - \frac{15}{17}

\sin( -  \alpha )  =  \frac{15}{17}

4 0
3 years ago
Write the equation of the line shown in point slope form (1,2) (3,6)
Kipish [7]

The point-slope form:

y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}

We have the points (1, 2) and (3, 6). Substitute:

m=\dfrac{6-2}{3-1}=\dfrac{4}{2}=2\\\\\boxed{y-2=2(x-1)}

7 0
3 years ago
A plane flies the 700 miles from Atlanta to Detroit in 11/4 hours. What is the plane's average air speed, in miles per hour?
Lynna [10]
The answer is 15.....
4 0
3 years ago
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