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3 years ago

(-3x+4)+(8x-5)

Mathematics

2 answers:

natka813 [3]3 years ago

7 0

It’s is a the other dose not even go with it

VikaD [51]3 years ago

4 0

Answer:

answer is 5x-1

its A

hopes this helps u

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The ingredients for your skillet brownie cost $2. Your want your food cost for

goldfiish [28.3K]

$2 / 0.3 = $6.67

Check:

$6.67 * 0.3 = $2 :)

6 0

3 years ago

Calculate the time necessary to achieve the investment goal. Give your answer to the nearest day. Use a 365-day year. $2,320 at

Bumek [7]

Answer:

5yrs or 1825 days

Step-by-step explanation:

Given the total amount of the investment after n-days at 9% is $2,320 and the principal amount invested is $1,600

-Let P be the principal amount, A be the total amount of the investment.

-We calculate the number of days using simple interest formula.

#Calculate the total interest earned on the investment:

$I=A-P, \\\\I=2320-1600\\\\=720$

Simple interest is calculated using the formula:

$I=PRT, T=time, R=interest \ rate , P= Prncipal, I=720\\\\720=1600\times \frac{9}{100}\times T\\\\\frac{720}{144}=T\\\\T=5\ years=5\times 365\ days= 1825\ days$

Hence, it takes 1,825 days to achieve your investment goals

6 0

3 years ago

Rewrite the indicated real nth root(s) of a in radical form

notsponge [240]

Answer:

$\sqrt[n]{a}$

1. $\sqrt[3]{27}$ = $\sqrt[3]{3^3}$ = 3

2. $\sqrt[4]{16}$ = $\sqrt[4]{2^4}$ = 2

3. $\sqrt[6]{64}$ = $\sqrt[6]{2^6}$ = 2

4. $\sqrt[5]{243}$ = $\sqrt[5]{3^5}$ =3

Hope that helps!

7 0

3 years ago

For the figures below, assume they are made of semicircles, quarter circles and squares. For each shape, find the area and perim

laiz [17]

Answer:

Part 1) $A=36(\pi-2)\ cm^2$

Part 2) $P=6(\pi+2\sqrt{2})\ cm$

Step-by-step explanation:

Part 1) Find the area

we know that

The area of the shape is equal to the area of a quarter of circle minus the area of an isosceles right triangle

$A=\frac{1}{4}\pi r^{2}-\frac{1}{2}(b)(h)$

we have that the base and the height of triangle is equal to the radius of the circle

$r=12\ cm\\b=12\ cm\\h=12\ cm$

substitute

$A=\frac{1}{4}\pi (12)^{2}-\frac{1}{2}(12)(12)\\A=(36\pi-72)\ cm^2$

simplify

Factor 36

$A=36(\pi-2)\ cm^2$

Part 2) Find the perimeter

The perimeter of the figure is equal to the circumference of a quarter of circle plus the hypotenuse of the right triangle

The circumference of a quarter of circle is equal to

$C=\frac{1}{4}(2\pi r)=\frac{1}{2}\pi r$

substitute the given values

$C=\frac{1}{2}\pi (12)\\C=6\pi\ cm$

The hypotenuse of right triangle is equal to (applying the Pythagorean Theorem)

$AC=\sqrt{12^2+12^2}\\AC=\sqrt{288}\ cm$

simplify

$AC=12\sqrt{2}\ cm$

Find the perimeter

$P=(6\pi+12\sqrt{2})\ cm$

simplify

Factor 6

$P=6(\pi+2\sqrt{2})\ cm$

8 0

3 years ago

Solve for x : 5x−7 = 3

SSSSS [86.1K]

Answer:

x=2

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers