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3 years ago

Which expression does NOT have a Greatest Common Factor?

Mathematics

1 answer:

Misha Larkins [42]3 years ago

3 0

Answer:

4x^2-9

Step-by-step explanation:

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Caiden earned $475 from mowing lawns last summer. He deposited this money in an account that pays an interest rate of 3.8% compo

Korolek [52]

Caiden's balance after 5 years would be $831

Explanation:

Given:

Principal, p = $475

Rate of interest = 3.8%

time, t = 15 years

Balance after 15 years = ?

We know:

$Amount, A = P(1+\frac{r}{n})^n^t$

where,

n = number of compounding periods

r = rate of interest

t = number of years

Substituting the value;

$A = 475(1+\frac{3.8}{100} )^1^5\\\\A = 831$

Therefore, Caiden's balance after 5 years would be $831

5 0

3 years ago

If the value of "y" varies directly with "x" and y = 6 when x = -2, find "y" when x = 8. Direct Variation Equation: y = kx

sattari [20]

Answer:

to solve for k we will put y=6

4 0

2 years ago

Kingda ka in new jersey is the tallest and fastest roller coaster in the world. riders travel at an average speed of 61 feet per

trapecia [35]

Answer:

(a) 3118=61*t

(b) The amount of time the roller coaster is in motion is 51.11 seconds.

Step-by-step explanation:

Speed is a magnitude that expresses the relationship between the space traveled by an object, the time used for it and its direction. In other words, speed is associated with the change in position of a body over time and can be expressed as:

$speed=\frac{distance}{time}$

Then the distance traveled can be expressed as:

distance=speed*time

(a) If x represents the total time that the roller coaster is in motion for each ride, the average speed is 61 feet per second and the distance is 3118 feet then the expression to represent the situation is:

3118=61*x

(b) To calculate the amount of time the roller coaster is moving, you simply need to solve the expression found in (a). Dividing 61 to both sides:

$\frac{3118}{61} =\frac{61*x}{61}$

51.11 seconds=x

The amount of time the roller coaster is in motion is 51.11 seconds.

5 0

3 years ago

8.88=-2.22(x-7) what is x

yan [13]

Answer:

Step-by-step explanation:

Let's solve your equation step-by-step.

8.88=−2.22(x−7)

Step 1: Simplify both sides of the equation.

8.88=−2.22(x−7)

8.88=(−2.22)(x)+(−2.22)(−7) (Distribute)

8.88=−2.22x+15.54

Step 2: Flip the equation.

−2.22x+15.54=8.88

Step 3: Subtract 15.54 from both sides.

−2.22x+15.54−15.54=8.88−15.54

−2.22x=−6.66

Step 4: Divide both sides by -2.22.

−2.22x /−2.22

−6.66 /−2.22

x=3

3 0

3 years ago

The largest state in the US is Alaska, covering 663,267 square miles (including water). What is the approximate radius of a sphe

JulsSmile [24]

Remember that the formula for the surface area of a sphere is $SA=4 \pi r ^{2}$ . Substitute the given surface area to solve: $663,267=4 \pi r ^{2}$ . Divide by 4 on both sides: $165,816.75= \pi r ^{2}$ . Divide by pi on both sides: $52781.11= r ^{2}$ . Square root on both sides to find the radius: $229.741= r$

5 0

3 years ago