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weeeeeb [17]
3 years ago
11

How do you factor 4a^2+11a-20

Mathematics
1 answer:
bixtya [17]3 years ago
4 0
You have to factor by grouping.
(4a - 5) (a + 4)
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Square A is a scaled version of square B. The dimensions of square A are three times the dimensions of square B. The area of squ
denis23 [38]

Answer:

The side of square A is 30 cm.

Step-by-step explanation:

Given that,

The dimensions of square A are three times the dimensions of square B.

The area of square A is 900 sq cm.

Side of square A = 3( side of square B)

Let the side of square B is b. So,

Side of square A, a = 3b

We know that, the area of square is side². So,

(3b)^2=900\\\\9b^2=900\\\\b^2=100\\\\b=10\ cm

Side of square A, a = 3(10) = 30 cm

Hence, the side of square A is 30 cm.

8 0
3 years ago
An open top box is to be made by a 24 in by 24 in. by 36 in. piece of cardboard by removing a square from each corner of the box
galben [10]

Answer:

X= -12 +6√10

X= 6.973

Step-by-step explanation:

Volume of the box= (36-2x)(24-2x)x

Volume of the box

=( 864 -96x -4x²)x

But 864 -96x -4x²

=216 - 24x-x²

Solving for x quadratically

X= (24+12√10)/-2

X= -12 -6√10

X= -30.97

Or

X= (24-12√10)/-2

X= -12 +6√10

X= 6.973

X will definitely be a positive number

So X= -12 +6√10

X= 6.973

4 0
3 years ago
What inequality does the graph represent?
slega [8]
The shaded region is above the line so it would be y> so then the equation is y=4x+2 since the graph has a y intercept of 2 and a slope of four

tl;dr the answer is B


8 0
3 years ago
Read 2 more answers
What is the circumstances of this circle? Use 3.14 for
Papessa [141]

Answer:

Is

Step-by-step explanation:

Is there more information?

3 0
3 years ago
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Write a phrase as a algebraic expression.4 times the sum of a number and 20.
Deffense [45]

4(20 + x)

PLEASE RATE AS THE BRAINLIEST ANSWER! THANK YOU! :)

4 0
3 years ago
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