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3 years ago

Rectangle has 20 centimeters and area has 16 cm2. What are the length and width of the rectangle

Mathematics

1 answer:

Ugo [173]3 years ago

5 0

Answer:

Th sides are a width of 8cm and a height of 2cm

Step-by-step explanation:

8*2 = 16

8+8+2+2=20

there are two sides that are equal on a rectangle but when finding are only two of the sides are multiplied, the height and width of the triangle

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What is 4sqrt7^3 in exponential form?

katrin [286]

Answer:

$\boxed{7^{\frac{3}{2} } \times 4}$

Step-by-step explanation:

$4 (\sqrt{7} )^3$

Square root can be written as a power.

$4(7^{\frac{1}{2} })^3$

Multiply the exponents.

$4(7^{\frac{3}{2} })$

7 0

3 years ago

Which is traveling faster, a car whose velocity vector is 201 + 25), or a car whose velocity vector is 30i, assuming that the un

Snowcat [4.5K]

Answer:

2nd car is running faster than the first car by 2.01 units.

Step-by-step explanation:

Let's assume that

the velocity of first car,

$v_1\ =\ 20i\ +\ 25j$

and the velocity of second car

$v_2\ =\ 30i$

=> speed of first car,

$u_1\ =\ \sqrt{(20)^2+(25)^2}$

$=\ \sqrt{400+625}$

$=\ \sqrt{1025}$

= 32.01 units

and speed of second car,

$u_2\ =\ \sqrt{(30)^2+(0)^2}$

= 30 units

$u_2\ -\ u_1\ =\ 32.01\ -30$

= 2.01 units

Hence, 2nd car is running faster than the first car by 2.01 units.

8 0

3 years ago

PLEASE HELP! Why did Southern states feel betrayed by President Zachary Taylor? He wanted popular sovereignty for new states, an

andriy [413]

Answer:

Southern states felt betrayed by President Zachary Taylor because he pushed for the 1850 Compromise on slavery, going against what his fellow southerners believed in.

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3 years ago

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arrange the expressions in the correct sequence to rationalize the denominator of the expression -(2)/(\sqrt(x+y-2)-\sqrt(x+y+2)

cupoosta [38]

We have to rationalize the denominator:
$\frac{-2}{ \sqrt{x+y-2} - \sqrt{x+y+2} } = \\ \frac{-2}{ \sqrt{x+y-2} - \sqrt{x+y+2} }* \frac{ \sqrt{x+y-2}+ \sqrt{x+y+2} }{ \sqrt{x+y-2}+ \sqrt{x+y+2} }= \\ \frac{-2*( \sqrt{x+y-2}+ \sqrt{x+y+2}) }{x+y-2-(x+y+2)}= \\ \frac{-2*( \sqrt{x+y-2}+ \sqrt{x+y+2}) }{x+y-2-x-y-2}= \\ \frac{-2*( \sqrt{x+y-2}+ \sqrt{x+y+2} }{-4}= \\ \frac{ \sqrt{x+y-2}+ \sqrt{x+y+2} }{2}$

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3 years ago

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Find −14(5).

erica [24]

Answer:

-14(5) = -70

9(-12) = -108

-6(-8) = 40

ab = -16(-5) = 80

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3 years ago