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Nataly_w [17]
2 years ago
7

Which of the following represents the area of a rectangle whose length is 3x + 5 and whose width is x - 2? (1 point)

Mathematics
2 answers:
Yuki888 [10]2 years ago
7 0

Answer:

A = 3x² - x - 10

Step-by-step explanation:

the area (A) of a rectangle is calculated as

A = length × width , then

A = (3x + 5)(x - 2)

each term in the second factor is multiplied by each term in the first factor.

A = 3x(x - 2) + 5(x - 2) ← distribute parenthesis

   = 3x² - 6x + 5x - 10 ← collect like terms

   = 3x² - x - 10

n200080 [17]2 years ago
3 0

Answer:

<em>A = 3x² - x - 10</em>

Step-by-step explanation:

<em>A = length × width</em>

<em>A = (3x + 5)(x - 2)</em>

<em>A = 3x(x - 2) + 5(x - 2) </em>

<em>A = 3x² - 6x + 5x - 10 </em>

<em>A = 3x² - x - 10</em>

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you are on a 750 mile trip by car . ur car used seven gallons of gas to travel the first 210 miles of the trip. how much more ga
stepan [7]

Answer:

A total of 18 gallons of more gas

Step-by-step explanation:

7 gallons = 210 miles

750-210= 540

210*2 =420 miles       7*2=14 gallons

210/2= 105                  7/2=3.5 gallons

525 miles                       17.5 miles

210/14= 15                      7/14=.5 gallons

540 miles                    18 gallons

6 0
2 years ago
PLEASE HELP
postnew [5]

Answer:

Below

Step-by-step explanation:

Substituting the given values:

f(6) = 6(2/3) - 2 =   cube root of 6^2 - 2 = cube root 36 - 2

f(-6)=  (-6)(2/3) - 2 =   cube root of(-6)^2 - 2 = cube root 36 - 2

So This is true,

f(6) =   cube root of 6^2 - 2 = cube root 36 - 2 = 1.3019

2 * f(3) = 2 *  (cube root of 3^2 - 2 )  =  2 * (cube root of 9 - 2) = 0.1602

So False,

4 0
3 years ago
NEED HELP ASAP PLEASE!!
inna [77]
The correct answer should be C
7 0
3 years ago
Kurt used the rule add 4,subtract 1 to generate a pattern.the first term in his pattern is 5.wich number could it be
anastassius [24]
__ 5 __, __

the first would be 2 
after 5 is 8
after 8 is 11

Hope this helps!!!
3 0
3 years ago
4. Which expression is equivalent to sin(50)º?
jasenka [17]

Answer:

cos(400)

Step-by-step explanation:

Useful things:

Cofunction identity: sin(x)=cos(90-x)

Sine and cosine have period of 360 degrees.

So sin(50)=cos(40) by cofunction identity.

Since cosine has period of 360 degrees then cos(40)=cos(360+40).

That simplifies to cos(400).

3 0
2 years ago
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