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natka813 [3]
4 years ago
6

Given: Point C is the midpoint of AB.

Mathematics
1 answer:
Dmitrij [34]4 years ago
4 0

Answer:

c  \: is \: the \: midpoint \: of \: ab \: therefore \: ac \: is \: equal \: to \: cb \\ 7x - 10 = 3x + 10 \\ 7x - 3x = 10 + 10 \\ 4x = 20 \\ x = 5 \\ substitute \: x = 5  \: into \: 7x - 10  = ac\\ 7(5) - 10  \\ 35 - 10 \\ 25 = ac

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Charlotte earned a grade of 84% on her multiple-choice math final that had a total of 200 problems. How many problems on the fin
xxTIMURxx [149]

Answer:

Wrong problems = 32

Step-by-step explanation:

Total no of problems = 200

Charlotte earned a grade of 84% on her multiple-choice.

Correct problems,

=\dfrac{84}{100}\times 200\\\\=168

Wrong problems = 200 - correct problems

= 200 - 168

= 32

Hence, there are 32 problems on the final exam Charlotte get wrong.

8 0
3 years ago
Which of the following is the slope of line perpendicular to the y= -2/3x + 5? A.2/3 B.3/2 C.-2/3 D.-3/2
Fofino [41]

Answer:

+3/2 (Answer B)

Step-by-step explanation:

If the slope of a given line is m, then the slope of any line perpendicular to this given line is the negative reciprocal of the slope of the latter:

     -1

------------ = +3/2 (Answer B)

   -2/3

8 0
4 years ago
Please answer correctly ASAP !!!!!! Will mark brainliest !!!!!!!!!
BigorU [14]

Answer:

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Step-by-step explanation:

6x^2 - 13^x + 6= 0

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By factorising...

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Hence, X=3/2 and 2/3

7 0
3 years ago
Erin had $6,191.50 in a savings account with simple interest. She had opened the account with $6,100 just six months earlier. Wh
NNADVOKAT [17]

Answer:

  3%

Step-by-step explanation:

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The interest rate was 3%.

6 0
3 years ago
Read 2 more answers
I'm a little bit confused about how to approach this can someone help?
Taya2010 [7]

Answer:

4

Step-by-step explanation:

ΔABC is congruent with ΔDEF.  That means the corresponding sides are congruent.

Look at the order of the letters.  EF are the last two letters of ΔDEF.  So this corresponds with the last two letters of ΔABC.  Therefore, EF ≅ BC.

EF ≅ BC

x² + 8x = 48

x² + 8x − 48 = 0

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x = -12 or 4

Since x can't be negative, x = 4.

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3 years ago
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