3 years ago

(Vx+2)(vx-2)=0 What is x?

Mathematics

1 answer:

kumpel [21]3 years ago

5 0

Answer:

x=2

Step-by-step explanation:

if x=2 then v=1

([1×2]+2)([1×2]-2)

=(2+2)(2-2)

=(4)(0)

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Sammy has a rectangular doormat on her porch. The mat is \dfrac45\text{ m} 5 4 mstart fraction, 4, divided by, 5, end fraction

Otrada [13]

Answer:

Area of the rectangular doormat = 2/5 m²

Step-by-step explanation:

Length of the rectangular doormat = 4/5m

Width of the rectangular doormat = 1/2m

What is the area of the doormat?

Area of a rectangle = length × width

= 4/5m × 1/2m

= (4×1) / (5×2)

= 4 / 10

= 2/5 m²

Area of the rectangular doormat = 2/5 m²

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2 years ago

The sum of two numbers is 20. The difference between three times the first number and twice the second is 40. Find the two numbe

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The numbers are 16 and 4

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2 years ago

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matrenka [14]

Step-by-step explanation:

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3 years ago

Zach and Ginny are building model cars. Ginny's car is 2 more than 3 times the length of Zach's car. The sum of the lengths of b

Neporo4naja [7]

Answer:

$x+(3x+2)=30$

Step-by-step explanation:

Let

x ----> the length of Zach's car

y ----> the length of Ginny's car

we know that

The sum of the lengths of both cars is 30 inches

$x+y=30$ ----> equation A

Ginny's car is 2 more than 3 times the length of Zach's car

$y=3x+2$ ----> equation B

substitute equation B in equation A

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3 years ago

Solve for C.<br> 5/4= -4c + 1/4

dybincka [34]

5/4= -4c + 1/4

Inverse operation

$\frac{5}{4} = -4c + \frac{1}{4}$

- 1/4 -1/4

5/4 - 1/4 = 4/4

$\frac{4}{4} = -4c$
-4c/-4 = 4/4 ÷ -4/1

4/4 *- 1/4 = c
-4/8 = c
c = -1/2

Answer: $c = - \frac{1}{2}$

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2 years ago