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dexar [7]
3 years ago
15

1. Simplify the expression. Show your work .and steps 22 + (3^2 – 4^2)

Mathematics
1 answer:
erastova [34]3 years ago
6 0
PEMDAS...parentheses, then exponents, then multiplication/division, finally addition/subtraction...

22+(3^2-4^2)  inside the parentheses are exponents, so they are calculated first.

22+(9-16)  now you complete the operations inside the parentheses

22+(-7)  finally you do your addition/subtraction

22-7

15
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Step-by-step explanation:

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2 years ago
Ada writes 10 + 8 = 18 on the board. Maria wants to use the commuatative property of addition to rewrite adas addition sentence.
pshichka [43]
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6 0
3 years ago
A line passes through the point (-6, 9) and has a slope of 4/3. Write an equation in slope-intercept form for this line.
Reika [66]

Answer:

y = 4/3x + 17 .

Step-by-step explanation:

Use the point-slope form of a line:

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6 0
2 years ago
The probability that a dancer likes ballet is .35. The probability that the dancer likes tap is .45. The probability that the da
Tom [10]

It is given the probability that a dancer like ballet is 0.35

So, P(B) = 0.35

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So, P(T)= 0.45

The probability that he likes both ballet and tap is 0.30

So, P(B\cap T)=0.30

the probability that the dancer likes ballet if we know she likes tap. This is the case of conditional probability.

So, P(B/T)=\frac{P(B\cap T)}{P(T)}

P(B/T)=\frac{0.30}{0.45}

= 0.666

= 0.67

Therefore, the probability that the dancer likes ballet if we know she likes tap is 0.67.

Option 3 is the correct answer.

6 0
3 years ago
Help please! I do not understand
Alja [10]

Answer:

do u have to click one of the choices

Step-by-step explanation:

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4 0
3 years ago
Read 2 more answers
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