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photoshop1234 [79]
3 years ago
6

What does 15x2 1/2=?

Mathematics
1 answer:
Xelga [282]3 years ago
7 0

Answer:

15

Step-by-step explanation:

15 × 2 × 1/2 = 15

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2^-3 x 3^-2<br> 2 to the power of negative 3 times by 3 to the power of negative 2
Ivan
<h3>The value of 2 to the power of negative 3 times by 3 to the power of negative 2 is 0.013889</h3>

<em><u>Solution:</u></em>

<em><u>Given that:</u></em>

2^{-3} \times 3^{-2}

We have to find the value of expression

We know that,

a^{-n} = \frac{1}{a^n}

Therefore,

2^{-3} \times 3^{-2} = \frac{1}{2^3} \times \frac{1}{3^2}

We know that,

a^2 = a \times a

Similarly,

2^{-3} \times 3^{-2} = \frac{1}{2 \times 2 \times 2} \times \frac{1}{3 \times 3}\\\\Simplify\\\\2^{-3} \times 3^{-2} = \frac{1}{8} \times \frac{1}{9}\\\\2^{-3} \times 3^{-2} = \frac{1}{72}\\\\Simplify\\\\2^{-3} \times 3^{-2} = 0.013889

Thus value of 2 to the power of negative 3 times by 3 to the power of negative 2 is 0.013889

5 0
3 years ago
Write a polynomial of least degree with roots 0 and -4​
qaws [65]

Answer:

x^2+4x

Step-by-step explanation:

x(x+4) has solutions of x=0 and x=-4, which expands to x^2+4x

6 0
3 years ago
In triangle JKL, angle JKL is a right angle, KM and is an altitude. JL=8 and JM=2, find JK
brilliants [131]

Answer:

4

Step-by-step explanation:

I could be wrong, but I think it's 4. as JL divided by JM equals 4. Like I said, I could be wrong, but it's worth a shot.

6 0
3 years ago
Read 2 more answers
Tatesville had x inches of rainfall in April, (x + 1.3) inches of rainfall in May, and (2x + 0.5) inches in June. If x=2 inches,
inna [77]

Answer: 9.8 inches

Step-by-step explanation:

Since x = 2 inches

Rainfall in April = x inches = 2 inches

Rainfall in May = x + 1.3 = 2 + 1.3 = 3.3 inches

Rainfall in June = 2x + 0.5 = 2(2) + 0.5 = 4.5

Total rainfall = 2 + 3.3 + 4.5 = 9.8 inches

5 0
3 years ago
I need to remember how to solve this problem
bekas [8.4K]

<u>1 + 4x = -5 + 7x</u>

1st step: you need to move 4x to the right and -5 to the left so that all the x's are in one place. 4x will be negative and -5 will be positive when you move them. So it will be:

1+5=7x-4x

2nd step:

3x=6

3rd step: you need to divide both sides into 3, because it is the common divisor.

x=2

<h2>To sum up:</h2>

<em>1 + 4x = -5+7x</em>

<em>7x - 4x = 1 + 5</em>

<em>3x = 6</em>

<h2><em>x = 2</em></h2>

You can try to memorize the summary. However, it is better to understand the solution as a whole.






8 0
4 years ago
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