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3 years ago

Can someone help me out with this problem?...REAL ANSWERS ONLY

Mathematics

1 answer:

aliina [53]3 years ago

3 0

Three quarts bc the area of the wall is 300ft squared and each quart covers 100

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The difference between eight times a number and three is equal to negative nineteen. What is the number?

malfutka [58]

The equation would be 8x +3 + -19. Substitute your given answers in. Your answer would be B. Negative 2

7 0

4 years ago

Read 2 more answers

Assume that a company sold 5.75 million motorcycles and 3.5 million cars in the year 2010. The growth in the sale of motorcycles

OverLord2011 [107]

Answer:

Final answer is approx 6.644 years.

Step-by-step explanation:

Given that a company sold 5.75 million motorcycles and 3.5 million cars in the year 2010. The growth in the sale of motorcycles is 16% every year and that of cars is 25% every year.

So we can use growth formula:

$A=P\left(1+r\right)^t$

Then we get equation for motorcycles and cars as:

$A=5.75\left(1+0.16\right)^t$

$A=3.5\left(1+0.25\right)^t$

Now we need to find about when the sale of cars will be more than the sale of motorcycles. So we get:

$3.5\left(1+0.25\right)^t>5.75\left(1+0.16\right)^t$

$3.5\left(1.25\right)^t>5.75\left(1.16\right)^t$

$\frac{\left(1.25\right)^t}{\left(1.16\right)^t}>\frac{5.75}{3.5}$

$\left(\frac{1.25}{1.16}\right)^t>1.64285714286$

$t\cdot\ln\left(\frac{1.25}{1.16}\right)>\ln\left(1.64285714286\right)$

$t>\frac{\ln\left(1.64285714286\right)}{\ln\left(\frac{1.25}{1.16}\right)}$

$t>6.6436473051$

Hence final answer is approx 6.644 years.

7 0

3 years ago

Let f(x) = sin(x) + icos(x). Show that |f(x)| = 1.

Oksanka [162]

F(x) = sin(x) + icos(x)
|f(x)| = sqrt(sin^2(x) + cos^2(x)) = sqrt(1) = 1

Therefore, |f(x)| = 1

5 0

3 years ago

CAN SOME ACTUALLY HELP ME PLEASE!!!!!!!!!!!!!!!!!!

Ahat [919]

Answer:

(1, No, No) (2, No, Yes) (3, 6x^2+10) (4, 2x^2-3) (5, x^2-x) (6, -2x^4+12x+3)

(7, 3x^3+15x^2+20) (8, 9x^3 + 4x^2+8x) (9, xy+2x+6y+5) Sorry didn't have an answer for 10. I hope they are all correct sorry for the wait.

Step-by-step explanation:

6 0

3 years ago

Find the arc length of the particle circle

klasskru [66]

Answer:

Length of arc is 2π

Step-by-step explanation:

Length of arc=¤/360 x 2πr

Where:

¤=angle

r=radius

length of arc=90/360 x 2xπx4

Length of arc=1/4 x 8π

Length of arc=8π ➗ 4

Length of arc=2π

4 0

3 years ago

Read 2 more answers

Can someone help me out with this problem?...REAL ANSWERS ONLY ​

Can someone help me out with this problem?...REAL ANSWERS ONLY