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Neporo4naja [7]
2 years ago
12

manny says that if the expression was 12 divided 3^2 you would divide before simplifying 3^2, Is he right? Explain Please Answer

!!
Mathematics
1 answer:
Alona [7]2 years ago
8 0

Answer:

Wrong. PEMDAS exponents come before dividing

Step-by-step explanation:

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lakkis [162]

Answer: (-4,-3)

Step-by-step explanation:

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3 years ago
Help pls its been 30 minutes
Elina [12.6K]

Answer:

probability = 6/7

Step-by-step explanation:

a+b+c= 30 students

there are 35 students in total.

=30/35

30/35 fully simplified = 6/7

the probability that a student earns a grade of A, B, or C is 6/7.

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Evaluate the expression. P(9, 3) · P(5, 4)
boyakko [2]

Answer:

P(9,3) *P(5,4)

And if we use the permutation formula given by:

nPx = \frac{n!}{(n-x)!}

And replacing we got:

\frac{9!}{6!} \frac{5!}{4!}= 504*5 = 2520

Step-by-step explanation:

For this problem we want to find the following expressionÑ

P(9,3) *P(5,4)

And if we use the permutation formula given by:

nPx = \frac{n!}{(n-x)!}

And replacing we got:

\frac{9!}{6!} \frac{5!}{4!}= 504*5 = 2520

6 0
3 years ago
Three streets intersect to form a right triangle as shown below. The parts of streets that make up the legs of this triangle are
Burka [1]

Answer:

70 yd.

Step-by-step explanation:

The three streets at the intersection form a right triangle.

For a right triangle, the length of the longest side (called hypothenuse) is given by Pythagorean's theorem:

h=\sqrt{x^2+y^2}

where

x is the length of the 1st side

y is the length of the 2nd side

h is the length of the hypothenuse

Here we want to find the hypothenuse.

We have:

x = 42 yd (length of the 1st side)

y = 56 yd (length of the 2nd side)

Substituting, we find h:

h=\sqrt{42^2+56^2}=70 yd

7 0
3 years ago
Somebody please help .. What is the exact volume of this right cone ?
stiks02 [169]
\bf \textit{volume of a cone}\\\\
V=\cfrac{\pi r^2 h}{3}~~
\begin{cases}
r=radius\\
h=height\\
-----\\
r=12\\
h=8
\end{cases}\implies V=\cfrac{\pi (12)^2(8)}{3}
7 0
3 years ago
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