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Lilit [14]
3 years ago
15

60-points,5-star ratting,A thanks and MARKED AS BRANLIEST!

Mathematics
2 answers:
vitfil [10]3 years ago
8 0

Answer:

Step-by-step explanation:

31. D     6.5+8 = 14.5 > 12

32. B    -2*5= -10

33. B    -2x=6

:)

Natalija [7]3 years ago
4 0

Answer:

31.) 6.5

32.) -5

34.) -2x = 6

Step-by-step explanation:

31.) 6.5 + 8 = 14.5 > 12

32.) divide -10/-2 = -5

33.) add -1 twice = -2x ... add yellow 1 = 6

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Stells [14]
Notice the tickmark on the angles, those angles are equal to each other.

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therefore, the larger triangle, is similar with smaller-inscribed triangle by AA.

what the dickens does that mean?

\bf \cfrac{large}{small}\qquad \cfrac{4+5}{4}=\cfrac{5+x}{5}\implies \cfrac{9}{4}=\cfrac{5+x}{5}\implies 45=20+4x
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25=4x\implies \cfrac{25}{4}=x\implies 6\frac{1}{4}=x
8 0
3 years ago
Find the average of the following numbers −30 and 25
alina1380 [7]

Answer: -2.5

Step-by-step explanation:

The average can be found by adding up the numbers then dividing by how many numbers there are in this case there are two numbers.

-30+25=-5

-5/2 = -2.5

7 0
3 years ago
2x(x - 3) + 7(x - 3)<br> Can I have an explanation on how it works factors
Nimfa-mama [501]

Answer:

Step-by-step explanation:

2x(x - 3) + 7(x - 3)

2x^2 - 6x + 7x - 21

reduce

2x^2 + x - 21

if this is equal to 0 then:

2x^2 + x - 21 = 0

factored:

(2x + 7)(x - 3) = 0

How that was done:

Divide the (2x^2) into (2x) and (x).

Divide the (-21) into (+7) and (-3). You choose these numbers so that their sum, when multiplied by (2x) and (-3), adds up to (+x).  

8 0
3 years ago
Helpmesolevthisplease
Art [367]

Answer: reflection across the x = -y B

Step-by-step explanation:

8 0
3 years ago
Someone, please help me with this.<br> Correct answers get brainiest
Phantasy [73]

Answer:

3

-3

sqrt(9)

-sqrt(9)

Step-by-step explanation:

What number multiplied by itself will give you 9

3*3 =9

-3*-3 =9

sqrt(9) * sqrt(9) = sqrt(81) = 9

-sqrt(9) * -sqrt(9) = + sqrt(81) =9

7 0
3 years ago
Read 2 more answers
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