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2 years ago

Can anyone help me with this problem PLEASE??????

Mathematics

1 answer:

Vesna [10]2 years ago

7 0

A) Volume = l * w* h --> V = 7 * 5 * 4 --> V = 140 units³

B) 140 units³: Prism B has the same length, width, and height as A, just rotated.

C) As long as the tree numbers' product is 140 units³, it works.

Prism C: 140 * 1 * 1

Prism D: 14 * 2 * 5

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For a trapezoid, the following formula relates the area a, the two bases a and b, and the height h. a= g (a

Dovator [93]

A - area of a trapezoid;
a, b - two bases.
A = h * ( a + b ) / 2 / * 2 ( we have to multiply both sides by 2 )
2 A = h *( a + b )
2 A = h a + h b
h b = 2 A - h a
b = ( 2 A - h a ) / h
b = 2 A/h - a
Answer: D )

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2 years ago

At the beginning of my bike ride I feel good, so I can travel 20 miles per hour. Later, I get tired and travel only 12 miles per

Vesnalui [34]

Answer: $3\dfrac{1}{4}$ hours

Step-by-step explanation:

Let x be the time ( in hours ) you feel good and y be the time ( in hours ) that you get tired.

As per given , we have

x+y= 8

Since : $Distance = Speed\times Time$

So , we have

20x+12y=122

According to the given question , we have the following system of equations ,

$x+y= 8--------(1)\\\\20x+12y=122------------------(2)$

Multiply 12 on both sides of equation (1) , we get

$12x+12y=96------------(3)$

Eliminate equation (3) from (2) , we get

$8x=26\\\\\Rightarrow\ x=\dfrac{13}{4}=3\dfrac{1}{4}$

Hence, you felt $3\dfrac{1}{4}$ hours good.

3 0

2 years ago

PLEASE HELP WILL GIVE BRAINLIEST TO CORRECT ANSWER!!

musickatia [10]

Answer:

$p>\frac{1}{14}$

Step-by-step explanation:

Question: $-31p+79>-59p+81$

1) Subtract 79 from both sides:

$-31p>-59p+2$

2) Add 59p to both sides:

$28p>2$

3) Divide both sides by 28:

$p>\frac{2}{28}$

4) Simplify fraction:

$p>\frac{1}{14}$

5 0

2 years ago

What is the meaning of 7.00 in this equation?

blsea [12.9K]

Answer:

Step-by-step explanation:

3 0

1 year ago

Can i get help please and thanks

bixtya [17]

Answer: 9.21954

it’s pythagorean theorem btw :)

3 0

2 years ago