3 years ago

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)

You might be interested in

The cone and cylinder below have equal surface area

marissa [1.9K]

Answer:

Option B, False

Step-by-step explanation:

Step 1: Get the surface area formulas for both shapes

Surface Area Formula for Cone: $A = \pi * r(r + \sqrt{h^{2} + r^{2}})$

Surface Area Formula for Cylinder: $A = 2\pi rh+2\pi r^{2}$

Step 2: Plug in the values and solve

Cone: $A = \pi * r(r + \sqrt{(3r)^{2} + r^{2}})$

Cone: $A = \pi r^{2} + \pi \sqrt{10}r^{2}$

Cylinder: $A = 2\pi r*r+2\pi r^{2}$

Cylinder: $A=4 \pi r^{2}$

Step 3: Compare

$\pi r^{2} + \pi \sqrt{10}r^{2}\neq 4 \pi r^{2}$

They are not equal, therefore the answer is False.

Answer: Option B, False

6 0

2 years ago

I really need help me no understand this question thank u for the ones who helps me .

kifflom [539]

Answer:

Number 1 is 2 5/14

Step-by-step explanation:

4 0

3 years ago

How to find out the length of slant edge?

Liula [17]

Use the Pythagorean theorem A^2 + B^2 = C^2. C is the slant length. Hope this helps.

7 0

3 years ago

A B C Which one is it

OverLord2011 [107]

Answer:

the answer is c

Step-by-step explanation:

because it has more orange juice

4 0

2 years ago

Read 2 more answers

Can you explain how you would convert 4 m to millimeters?

Andrew [12]

M to millimetres is 3 steps. m > dm > cm > mm. since it is 3 steps down, the comma goes 3 places left. 4 > 0,4 > 0,04 > 0,004. so 4 m is equal to 0,004 mm

7 0

3 years ago