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Vikentia [17]
3 years ago
11

Which model represents the factors of X^2+9x+8

Mathematics
1 answer:
NeX [460]3 years ago
3 0

Answer:

The models have tiles corresponding to x+8 and x+1

Step-by-step explanation:

We want to find the model that represents factors of

{x}^{2}  + 9x + 8

We split the middle term to get:

{x}^{2}  + 8x + x + 8

We factor by grouping to obtain:

x(x + 8) + 1(x + 8)

We collect common factors again to get:

(x + 8)(x + 1)

The models have tiles corresponding to x+8 and x+1

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A sector of a circle has a central angle of 100 degrees. If the area of the sector is 50pi, what is the radius of the circle
MrMuchimi

The radius of the circle having the area of the sector 50π, and the central angle of the radius as 100° is <u>6√5 units</u>.

An area of a circle with two radii and an arc is referred to as a sector. The minor sector, which is the smaller section of the circle, and the major sector, which is the bigger component of the circle, are the two sectors that make up a circle.

Area of a Sector of a Circle = (θ/360°) πr², where r is the radius of the circle and θ is the sector angle, in degrees, that the arc at the center subtends.

In the question, we are asked to find the radius of the circle in which a sector has a central angle of 100° and the area of the sector is 50π.

From the given information, the area of the sector = 50π, the central angle, θ = 100°, and the radius r is unknown.

Substituting the known values in the formula Area of a Sector of a Circle = (θ/360°) πr², we get:

50π = (100°/360°) πr²,

or, r² = 50*360°/100° = 180,

or, r = √180 = 6√5.

Thus, the radius of the circle having the area of the sector 50π, and the central angle of the radius as 100° is <u>6√5 units</u>.

Learn more about the area of a sector at

brainly.com/question/22972014

#SPJ4

8 0
1 year ago
Help please!!! i’ve been stuck on this for days!
Snezhnost [94]

Answer:

Step-by-step explanation:

What is the full question?

3 0
3 years ago
Bob did chores for his neighbor. The first day he earned $8. Then he earned $10 a day for
Bumek [7]

Answer: $128

Step-by-step explanation: So first Bob earned 8 dollars. Then he started earning 10 dollars a day every week for 2 weeks. that would have been 148 dollars (plus the 8 dollars he earned in the beginning), but he took a break once a week, subtracting 20 dollars from his pay, giving him 128 dollars in total.

Let me know if this was helpful! :D

3 0
3 years ago
Please help me and if you can, could you please explain. Thank you :D
kogti [31]

Answer: you said help so I’m not going to give the actual answer, just how to do it.

Step-by-step explanation:

You have to find the answer first. You work out the top and then you work out the bottom. Then divide the top by the bottom. YIU will get a number woth a power. The power is x that is your answer.

5 0
3 years ago
Read 2 more answers
I have a lot of khan questions so any help would be appreciated 3(−2a−4)+3a
nata0808 [166]

Answer:

-3a-12

Step-by-step explanation:

3(-2a-4)+3a

-6a-12+3a

-6a+3a-12

-3a-12

3 0
2 years ago
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