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Katen [24]
3 years ago
8

(10+13)(2+7y) which expression is equivalent to the expression above

Mathematics
2 answers:
drek231 [11]3 years ago
7 0

Answer:

23(2+7y-())=0

Step-by-step explanation:

(10+13)(2+7y=)

We move all terms to the left:

(10+13)(2+7y-())=0

We add all the numbers together, and all the variables

23(2+7y-())=0

Rufina [12.5K]3 years ago
4 0

Answer: something +9

Step-by-step explanation:

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False.

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What is the slope of the graph of y= 3x -<br> 2x–5?<br> b<br> -5<br> 2<br> 3
Ksenya-84 [330]

Answer:

2

Step-by-step explanation:

8 0
3 years ago
In △ABC, m∠A=15°, a=9, and b=10. Find c to the nearest tenth.
nadya68 [22]

In △ABC, m∠A=15°, a=9, and b=10

We apply sine law

\frac{ sin(a)}{b} = \frac{sin(b)}{b} = \frac{sin(c)}{c}

\frac{ sin(a)}{b} = \frac{sin(b)}{b}

\frac{ sin(15)}{9} = \frac{sin(b)}{10}

\frac{sin 15}{9} * 10 = sin(b)

0.287576716 = sin(b)

b= 16.7129 degree

angle A= 15 degree, angle B = 16.71 degree

So angle C = 148.29

\frac{ sin(a)}{b} = \frac{sin(c)}{c}

\frac{ sin(15)}{9} = \frac{sin(148.29)}{c}

c= \frac{sin(148.29)}{sin(15)} *9

c= 18.28



5 0
3 years ago
Please help me!!!!!!!!!!!!!!!!
timurjin [86]

Answer:

  0.91

Step-by-step explanation:

The total of all numbers in the diagram is 35 +5 +10 +5 = 55.

The total of the numbers inside one or both circles is 35 +5 +10 = 50.

The probability of choosing a random student from inside one or both circles (plays some instrument) is 50 out of 55, or ...

  50/55 ≈ 0.9090909... ≈ 0.91

P(A∪B) ≈ 0.91

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2 years ago
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