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Deffense [45]
3 years ago
11

I Need Help Plzzzzz!!!!

Mathematics
2 answers:
andrey2020 [161]3 years ago
5 0

Answer:

D

Step-by-step explanation:

To find the slope of the line perpendicular, you take the reciprocal of the slope of the first line and multiply by -1. So a line with slope \frac{1}{2} is perpendicular to a line with slope -\frac{2}{1}.

In your case, the slope of the line perpendicular is going to be -\frac{5}{2}. So yoo know your equation will look like y=-\frac{5}{2}x+b. To solve for b, plug in the x and y-coordinates:

-2=-\frac{5}{2}(2)+b

b=3

So your final answer is y=\bold{-\frac{5}{2}}x+3. Answer D is correct.

zimovet [89]3 years ago
3 0

Answer:

D

Step-by-step explanation:

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21. x² +9x - 22<br> Factors of cSum of Factors<br> 7<br> 7<br> ?<br> ?<br> 7<br> 7<br> 9<br> 7
Eduardwww [97]

Answer:

\large \begin{array}{| c | c |}\cline{1-2} \sf Factors\:of\:c & \sf Sum\:of\:Factors\\\cline{1-2} 1, -22 & -21 \\\cline{1-2} -1, 22 & 21\\\cline{1-2} 2, -11 & -9 \\\cline{1-2} -2, 11 & 9 \\\cline{1-2}\end{array}

Step-by-step explanation:

Quadratic equation: ax² + bx + c = 0, where a ≠ 0

x² + 9x - 22

  • a = 1
  • b = 9
  • c = -22

Factors of c (-22):

1 × -22     or     -1 × 22

2 × -11      or     -2 × 11

Sum of factors:

1 + (-22) = -21          or          -1 + 22 = 21

2 + (-11) = -9            or           -2 + 11 = 9

Table:

\large \begin{array}{| c | c |}\cline{1-2} \sf Factors\:of\:c & \sf Sum\:of\:Factors\\\cline{1-2} 1, -22 & -21 \\\cline{1-2} -1, 22 & 21\\\cline{1-2} 2, -11 & -9 \\\cline{1-2} -2, 11 & 9 \\\cline{1-2}\end{array}

Hope this helps!

6 0
2 years ago
Two S-year old girls, Alyse and Jocelyn, have been training to run a mile racc Alyse's I mile A is approximately Normally distri
Oksi-84 [34.3K]

Answer:

<h3 />

Step-by-step explanation:

5 0
3 years ago
The cost of downloading one song from a website is $0.99. which equation can be used to find t, the cost in dollars of downloadi
Alika [10]

Hello from MrBillDoesMath!

Answer:

Choice H:  ,  t = 0.99n


Discussion:

Download costs:

1 song:      0.99

2 songs:   0.99 + 0.99 = 2 * 0.99

3 songs:   0.99 + 0.99 + 0.99 = 3 * 0.99

...

n songs:   0.99 + .. 0.99 ( n times) = n * 0.99  = 0.99n


Thank you,

MrB

8 0
3 years ago
Read 2 more answers
Solve the equation 4p+9+(-7p)+2=
mr_godi [17]
4p+9-7p+2=
group like terms
4p-7p+9+2
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-3p+11
that is simplified form

6 0
3 years ago
I need help with this <br> ASAP!!!!!!!!!
zzz [600]

Answer:

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6 0
3 years ago
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