3 years ago

Which of these is a numerical expression? 4d 3+7 2m - 5

1 answer:

6 0

Well 4d is an algebraic term as it has a letter representing a number, 2m - 5 is also an algebraic term. 3 + 7 is a numerical expression as it is merely numbers. hope this helps

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Samantha and Mia each left Julia’s house at the same time. Mia walked north at 7 kilometers per hour. Samantha ran west at 11 ki

Lena [83]

Mia walked 7km/h so after 1 hour, she is 7 km north of the house of Julia

Samantha walked 11km/h so after 1 hour, she is 11 km west of the house of Julia.

The points where Mia and Samantha are after 1 hour , and the house of Julia form a right triangle with sides 7 and 11 km. The distance between the girls, is the hypotenuse of his triangle.

by the pythagorean theorem:

$MS= \sqrt{ 7^{2} + 11^{2} }= \sqrt{49+121}= \sqrt{170}= 13 (km)$

Answer: 13 km

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3 years ago

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What is the perimeter of a rectangle with an area of 2x^2+11x+5 in^2?

kirza4 [7]

Answer:

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Step-by-step explanation:

Area = side x side

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2x^2 +10x / +1x +5

2x(x+5) 1 (x+5)

(2x + 1) (x+5)

^These are your two sides

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(2(2x+1)) + (2(x+5))

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6 0

2 years ago

Help me out with these please!<br><br> No links to suspicious sites!

weeeeeb [17]

Answer:

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Step-by-step explanation:

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2 = n

n = 2

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2 years ago

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Vika [28.1K]

Step-by-step explanation:

(3x-4y)×(3x-4y-(3x+4y))

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2 years ago

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Change 3500 ml to litres.

Neko [114]

Answer: 3.5L

Step-by-step explanation:

1000 Ml = 1L

3500 Ml = 3.5L

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2 years ago

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