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3 years ago

Which square root is a whole number? A) 222 B) 223 C) 224 D) 225

Mathematics

2 answers:

RSB [31]3 years ago

7 0

The answer is D. 225. The square root of 225 is 15 while all the others are decimals.

zepelin [54]3 years ago

3 0

225, the square root of 225 is 15

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Simplify 2x+x+x+2y x 3y x y

olasank [31]

Answer:

3x+6y^3

Step-by-step explanation:

-First you add all the Xs

2x+x+x

-Then you multiply all the Ys

2y * 3y * y

* the Y has a 1 as an exponent by multiplying the Ys the exponents are added making the Y a Y^3

*the numbers are multiplied making it a 6

Together it forms 6y^3

-Ys and Xs cannot be added because they are different values so your answer would be 3x+ 6y^3

3 0

3 years ago

Read 2 more answers

What is the rate of change of y with respect to x for this function?

d1i1m1o1n [39]

Answer:

Rate of change = -0.2

Step-by-step explanation:

Given:

(-3, 3.6) and (5, 2)

Required:

Rate of change

Solution:

Formula for rate of change = change in y/change in x = $\frac{y_2 - y_1}{x_2 - x_1}$

Let,

(-3, 3.6) = (x_1, y_1)

(5, 2) = (x_2, y_2)

Plug in the values into the equation:

Rate of change = $\frac{2 - 3.6}{5 -(-3)}$

Rate of change = $\frac{-1.6}{8}$ = -0.2

8 0

3 years ago

Plz help me! ASAP! Thanks!

Orlov [11]

Just add 5 on both sides:
x-5>10
x>15

6 0

3 years ago

Convert 66 ft/sec to miles per hour. (1 mi = 5280 ft)

Dmitrij [34]

Answer:

Step-by-step explanation:

6 0

3 years ago

A boat's value over time is given as the function f(x) and graphed below. Use A(x) = 400(b)x + 0 as the parent function. Which g

Lelu [443]

Answer:

Last Graph (4th one)

Step-by-step explanation:

The equation given is $A(x)=400*b^x + 0\\A(x) = 400b^x$

Since we want increase of 25%, the value of b would be 1.25, so we have:

$A(x)=400(1.25)^x$

The graph should be increasing so we can immediately eliminate 2nd and 3rd graphs since they are clearly decreasing. We now have to choose between 1st graph and 4th graph.

<u>1st graph:</u>

Let's take the point (-20,30)

$A(x)=400(1.25)^{-20}\\A(x)=4.65$

<u>2nd graph:</u>

Let's take the point (-20,4.5)

$A(x)=400(1.25)^{-20}\\A(x)=4.65$

hence, this makes sense. So the correct graph is 4th one.

3 0

3 years ago