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3 years ago

1. Evaluate the following expression. Write your answer WITHOUT any exponents. (52)8 x 5-9

Mathematics

1 answer:

lara31 [8.8K]3 years ago

7 0

Answer:

The answer is 2080x - 9

Hope this helps

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If the mean of 2,4,6,8,x,y is 5 then find the value of x+y

Alex17521 [72]

Answer:

x + y = 10

Step-by-step explanation:

The mean is calculated as

mean = $\frac{total}{count}$ , thus

$\frac{2+4+6+8+x+y}{6}$ = 5 ( multiply both sides by 6 )

20 + x + y = 30 ( subtract 20 from both sides )

x + y = 10

6 0

3 years ago

What is H in the algebraic expression H+340÷30=25

disa [49]

Answer:

H = 13.67

Step-by-step explanation:

Given:

The the algebraic expression is

$H + \frac{340}{30} = 25$

We need to write the above equation for h.

Solution:

$H + \frac{340}{30} = 25$

First we divide the fraction part of the equation by common factor 10.

$H + \frac{34}{3} = 25$

Subtract both side of the equation by $\frac{34}{3}$ .

$H + \frac{34}{3}-\frac{34}{3} = 25- \frac{34}{3}$

$H = 25- \frac{34}{3}$

To write 25 as a fraction with a common denominator, multiply by $\frac{3}{3}$ .

$H = 25\times \frac{3}{3}- \frac{34}{3}$

$H = \frac{25\times3}{3}- \frac{34}{3}$

$H = \frac{75}{3}- \frac{34}{3}$

$H = \frac{75-34}{3}$

$H = \frac{41}{3}$

$H = 13.67$

Therefore the value of H is 13.67.

7 0

3 years ago

_ x 2 + 1 = 25<br><br> Pls help I need the answer

WITCHER [35]

Answer:

x = ± 2 $\sqrt{6}$

Step-by-step explanation:

x² + 1 = 25 ( subtract 1 from both sides )

x² = 24 ( take square root of both sides )

x = ± $\sqrt{24}$ = ± $\sqrt{4(6)}$ = $\sqrt{4}$ × $\sqrt{6}$ = ± 2 $\sqrt{6}$

x = - 2 $\sqrt{6}$ , x = 2 $\sqrt{6}$

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2 years ago

How long would it take you to reach 100 for the number of times you did your activity from this graph?

IceJOKER [234]

Answer:

33 1/3 minutes

Step-by-step explanation:

I note x- number of sentences

y=time

when x=3, y=1

x=6, y= 2

I observe that for every 3 sentences I have one more minute ( y increases by 1) so y= x/3

when x=99 i have y=99/3=33 minutes

for x= 100 I have y=100/3minutes= 33 1/3 minutes

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3 years ago

Consider the function f(x)=x^2

hoa [83]

Answer:

Step-by-step explanation:

if the 2 is like this (x+2) it would move to the left but if its like this x+2 it would move up

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3 years ago

1. Evaluate the following expression. Write your answer WITHOUT any exponents. (52)8 x 5-9​

1. Evaluate the following expression. Write your answer WITHOUT any exponents. (52)8 x 5-9