Simplify 4 to the seventh power over 5 squared all raised to the third power.

Answers

Answer 1

Answer: The expression (4^7/5^2)^3 can be simplify as 4^21/5^6 and it is equal to 281,4774,976.70. This is computed using the rule of simplifying exponential terms. It states that when an exponential term is raised to another power the powers must be multiplied.

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Which number is greater 0.45 or0.449

Answers

0.45 > 0.449 because 0.45 = 0.450. So, 0.450 > 0.449 is a true statement. I hope this helped you!

Solve –5√ x = –15.

A. x = –7
B. x = –9
C. x = 7
D. x = 9

Answers

Answer:

Option (d) is correct.

$x=9$

Step-by-step explanation:

Given : expression $-5√(x)=-15$

We have to solve for x.

Consider the given expression $-5√(x)=-15$

Divide both side by -5, we have,

$√(x)=(-15)/(-5)$

Simplify, we have,

$√(x)=3$

Squaring both side, we get,

$(√(x))^2=3^2$

Simplify, we get,

$x=9$

Thus, Option (d) is correct.

-5√x = -15
-5 -5
√x = 3
x = 9

The answer is D.

Once you have a single variable isolated in one of the two equations in a system, the second step of using substitution to solve the system of equations is to __________. A. solve for the second variable in the other equation. B. solve for the second variable in the same equation. C. substitute the expression equal to the solved variable into the other equation. D. substitute the expression equal to the solved variable into its original equation.

Answers

Answer:

Step-by-step explanation:

Given that there is a system of equations in two variables. When we have a single variable isolated in one of the two equations in a system, we can use substitution method.

So we substitute this variable in terms of other variable in the second equation so that we get now an equation in one variable. We can solve this by mathematical operations easily.

Hence correct answer is

C. substitute the expression equal to the solved variable into the other equation.

I think C, not sure though :)

You have no more than $65 to spend after paying your bills. You want a drink that costs$2.25 including tax, and you want to buy a pair of shoes, which will have 7% sales tax.
What is the inequality that represents the amount of money you have to spend?

a. x + 0.07x + 2.25 > 65
b. x + 0.07x + 2.25 ≤ 65
c. x + 0.07x + 2.25 < 65
d. x + 0.07x + 2.25 ≥ 65

Answers

Answer: B

Step-by-step explanation: You have no more than $65 which means you will want to spend equal to or less. Since you have $65, you will be able to spend up to that amount but you will not be able to spend any more than that. So, you will need to make sure the final price remains under or equal to your amount.

Please Help me!!!!!! Its my last question! What is the value of x so that the line segment with endpoints A(x, 1) and B(2, −3) is parallel to the line segment with endpoints C(−5, 2) and D(−3, 5)?

x = start fraction two over three end fraction
x = 5
x = 4
x = four start fraction two over three end fraction

Answers

the reasonable answer is D makes since

An experiment compares weight of fish for two different brands fish food. Nacho Average Minosfish food has a mean fish weight 10 lbs. and a standard deviation of 1.5 lbs. Impossible Minos fish
food has a mean fish weight of 12 lbs. and a standard deviation of 1 lb. A fish is measured to be
11.25 lbs. Which brand of fish food, Nacho Average Minos or Impossible Minos, is more likely to have
been used to feed this fish?

Answers

Answer:

i'll see if a friend knows ill work on it

Step-by-step explanation:

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