3 years ago

Will give brainliest

Mathematics

2 answers:

kari74 [83]3 years ago

6 0

Answer:

Step-by-step explanation:

elena55 [62]3 years ago

4 0

Answer:3

I’m sorry if it’s wrong

Step-by-step explanation:

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Find the sum and express it in the simplest form. (2x^2+3x-4)+(x^2-x-2)

Katen [24]

18 hope it helped!!

:) be my pleasure!

tysm

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2 years ago

A motor vehicle has a maximum efficiency of 39 mpg at a cruising speed of 40 mph. The efficiency drops at a rate of 0.1 mpg/mph

svp [43]

Answer:

38 mpg

Step-by-step explanation:

Initial efficiency = 39 mpg

Initial speed = 40 mph

Final speed = 50 mph

The efficiency drop between 40 mph and 50 mph is given by:

$E_d = 0.1 \frac{mpg}{mph}*\Delta V$

The total efficiency drop from 40 to 50 mph is:

$E_d = 0.1 \frac{mpg}{mph}*(50-40)mph\\E_d = 1\ mpg$

Therefore, the efficiency at 50 mph is:

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3 years ago

Marion is 3 years more than 5 times as old as Paula. if p represents Paula's age, which expression represents Marion's age?

Alborosie

5p + 3

because its 5 times Paula's age with the additional 3 years tacked on to it

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3 years ago

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Ivy filled a rectangular prism with 1-centimeters unitcubes.The greatest number of units cubes she could pack into the prism was

azamat

The answer is A because 6 x 10 x 2 = 120

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3 years ago

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A car travels at an average speed of 52 miles per hour. How many miles does it travel in 5 hours and 45 minutes?

Dimas [21]

Answer:

299

Step-by-step explanation:

On average, it travels 52 miles in each hour. In 5 3/4 hours, it travels 5 3/4 times 52 miles.

(5 3/4)(52 miles) = 299 miles

It travels 299 miles in the given time.

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2 years ago

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