2 years ago

Which of the following expressions is equivalent to a(4-a)-5(a+7)

Mathematics

2 answers:

MissTica2 years ago

5 0

Answer:

-a² - a - 35

Step-by-step explanation:

a(4 - a) - 5(a + 7)

(4a - a²) - (5a + 35)

4a - a² - 5a - 35

-a² - a - 35

Licemer1 [7]2 years ago

4 0

Answer:

dude give answer choices

Step-by-step explanation:

You might be interested in

Cual es el 45% de 18000

cricket20 [7]

8100 es el 45% de 18000

3 0

2 years ago

The volume of a room that is 23 feet in W , 10 feet in D, and 8 feet in H is?

Solnce55 [7]

The volume of the room is: 1840 ft^3

Step-by-step explanation:

The volume is the capacity of a given figure.

Given

Width = w = 23 feet

Depth = d = 10 feet

Height = h = 8 feet

The formula for volume is:

$V = W*D*H\\= 23*10*8\\=1840\ ft^3$

The volume of the room is: 1840 ft^3

Keywords: Volume, Box

Learn more about volume at:

#LearnwithBrainly

6 0

3 years ago

Which expressions are equivalent to 10a - 25 + 5b

sergey [27]

Answer:

Step-by-step explanation:

$10a-25+5b\\\\-2(-5a-25+5b)=(-2)(-5a)+(-2)(-25)+(-2)(5b)\\=10a+50-10b\qquad NOT\\\\(2a-5+b)(5)=(2a)(5)+(-5)(5)+(b)(5)=10a-25+5b\qquad YES\\\\10(a-2.5+0.5b)=(10)(a)+(10)(-2.5)+(10)(0.5b)\\=10a-25+5b\qquad YES\\\\(-2a+5-b)(-5)=(-2a)(-5)+(5)(-5)+(-b)(-5)\\=10a-25+5b\qquad YES\\\\-10(-a-2.5-0.5b)=(-10)(-a)+(-10)(-2.5)+(-10)(-0.5b)\\=10a+25+5b\qquad NOT$