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2 years ago

HELP ASAP LIKE I'M WORKING ON IT RN!!!

2 answers:

4 0

A. It is always true
B. -4*6=-24
3*-7=-21

C. Whenever you have a negative being multiplied by a positive the product is always negative

Westkost [7]2 years ago

3 0

Answer:It is always true

-4*6=-24

3*-7=-21

Whenever you have a negative being multiplied by a positive the product is always negative

Step-by-step explanation: stole answer from

IDoMaths123 lol

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$12,000 is invested for 4 years at a simple interest rate of 1.5%. How much does the investment earn?

bixtya [17]

12'000×1.5 I think might need to multiple your answer by 4 yet

5 0

3 years ago

what is the simplified form of the following expression? Assume X 0 and y 0. 2(^4 sqrt 16 x) -2(^4 sqrt 2y )+3 (^4 sqrt 81x ) -4

eduard

For this case we have the following expression:

$2(\sqrt[4]{16x})-2(\sqrt[4]{2y})+3(\sqrt[4]{81x})-4(\sqrt[4]{32y})$

Rewriting the numbers within the roots we have:

$2(\sqrt[4]{2*2*2*2x})-2(\sqrt[4]{2y})+3(\sqrt[4]{3*3*3*3x})-4(\sqrt[4]{2*2*2*2*2y})$

Then, by properties of powers we have:

$2(\sqrt[4]{2^4x})-2(\sqrt[4]{2y})+3(\sqrt[4]{3^4x})-4(\sqrt[4]{2^42y})$

Then, by radical properties we have:

$2(2\sqrt[4]{x})-2(\sqrt[4]{2y})+3(3\sqrt[4]{x})-4(2\sqrt[4]{2y})$

Rewriting the expression we have:

$4\sqrt[4]{x}-2\sqrt[4]{2y}+9\sqrt[4]{x}-8\sqrt[4]{2y}$

Finally, adding similar terms we have:

$(4+9)\sqrt[4]{x}-(2+8)\sqrt[4]{2y}$

$13\sqrt[4]{x}-10\sqrt[4]{2y}$

Answer:

The simplified form of the expression is:

$13\sqrt[4]{x}-10\sqrt[4]{2y}$

7 0

3 years ago

Read 2 more answers

Find the slope of the lines graphed below.

kolbaska11 [484]

The answer is 4/8 or 0.5(simplified)

7 0

3 years ago

Which expression is equivalent?

iVinArrow [24]

Answer:

$\large\boxed{\dfrac{g^{15}}{8h^6}}$

Step-by-step explanation:

$\dfrac{\left(2g^5\right)^3}{\left(4h^2\right)^3}=\dfrac{\left(2g^5\right)^3}{\left(2^2h^2\right)^3}\qquad\text{use}\ (a^n)^m=a^{nm}\ \text{and}\ (ab)^n=a^nb^n\\\\=\dfrac{2^3g^{(5)(3)}}{2^{(2)(3)}h^{(2)(3)}}=\dfrac{2^3g^{15}}{2^6h^6}=\dfrac{2^3g^{15}}{2^{3+3}h^6}\qquad\text{use}\ a^n\cdot a^m=a^{n+m}\\\\=\dfrac{2^3g^{15}}{2^3\cdot2^3h^6}=\dfrac{g^{15}}{8h^6}$

8 0

3 years ago

Logan can iron 40 shirts per hour, and Sarah can iron 35 shirts per hour. Logan and Sarah worked a combined 13 hours and ironed

san4es73 [151]

Answer:

Logan - 7 hours

Sarah - 6 hours

Step-by-step explanation:

Given Logan can iron 40 shirts per hour, and Sarah can iron 35 shirts per hour.

Also given that they worked together a combined hours of 13 hours

Let the number of hours worked by Logan is x and the number of hours worked by Sarah be y hours

Given x + y = 13

Also given that they together ironed 490 shirt's

which means 40x + 35y = 490

solve the above two equations by elimination

Multiply the first equation with 35 and subtract from the second equation we get

40x - 35x = 490 - 455

5x = 35

x = 7 hours

Substitute this value in the first equation to get the values of y

x + y = 13

y = 13 - x

y = 13 - 7 = 6 hours

therefore the number of hours worked by Logan is 7 hours and the number of hours Sarah worked is 6 hours

4 0

3 years ago