Solve for x.

x2 + 4x - 21 = 0

A.) -3,-7
B.) -3,7
C.) 3,-7
D.) 3,7

Answer: 46

Step-by-step explanation:

4(9)+10

36+10

46

Answer:

46

Step-by-step explanation:

4y + 10

4(9) + 10

36 + 10

46

Answer: factors of 10 are 1, 2, 5, and 10.

Step-by-step explanation: You can also look at this the other way around: if you can multiply two whole numbers to create a third number, those two numbers are factors of the third. 2 x 5 = 10, so 2 and 5 are factors of 10.

Answer:

1,2,5,10

Step-by-step explanation:

1 x 10 = 10

2 x 5 = 10

10 x 1 = 10

Answer:

12.5

14.4

37.1

57.6

45.9

71.1

77.4

70.4

60

59.4

47.6

34.2

48.3

67.5

75.6

Answer:

Factor 3x2c2+2xc2−1c2

3c2x2+2c2x−c2

=c2(3x−1)(x+1)

Answer:

c2(3x−1)(x+1)

Answer:

I THINK I GOT IT!!! I think by 19 weeks (rounding) she will have to run 1 extra mile or 95 percent more!!!!!!!

Step-by-step explanation:Please do not blame me if its wrong i only thought about for like 1 min!

Answer:

[tex]A=65 inches^2[/tex]

Step-by-step explanation:

From the question we are told that:

Length of wiper [tex]x=18[/tex]

Length of blade [tex]y=12[/tex]

Angle[tex]\theta=130\textdegree[/tex]

Generally the equation for Cover Area windshield wiper A_w  is mathematically given by

 [tex]A_w=x^2*\frac{\theta}{360}[/tex]

 [tex]A_w=18^2*\frac{130}{360}[/tex]

 [tex]A_w=117 \textdegree[/tex]

Generally the equation for Cover Area windshield blade A_b  is mathematically given by

 [tex]A_b=y^2*\frac{\theta}{360}[/tex]

 [tex]A_b=12^2*\frac{130}{360}[/tex]

 [tex]A_b=52 \textdegree[/tex]

Therefore total Area wiped by windshield wiper A

 [tex]A=A_w-A_b[/tex]

 [tex]A=65 inches^2[/tex]

Answer:

I need help with that as well, if you could tell me the answer please and the top as well

Step-by-step explanation:

Answer:

is that for social studeies

Step-by-step explanation:

Answer: ~31.3

first use the pythagorean theorem. a^2+(40)^2=50^2.

simply. a+1600=2500. subtract 1600 from both sides. a^2=900.

square root both sides to get a= 30

then find how far the top of the ladder is from the ground once in its new position.

a^2+(39)^2=50^2.

simplify. a^2+1512=2500. subtract 1512 from both sides to get a^2=979.

square root both sides to get a=31.288975. round to the nearest tenth to get a=31.3

Answer:

A: FG = ½GC

Step-by-step explanation:

Since AD, BC and CD are medians concurrent at G, it means G is the centroid.

Now, when median passes through the centroid, the centroid divides the median in the ratio of 2:1.

Also,that the median touches the side of the triangle at their midpoints.

Thus,by inspection, we can say that;

GD = ⅓AD

GC/FG = 2/1

Thus, GC = 2FG and FG = ½GC

BG = ⅔BE

Tbus,looking at the options given and what we have gotten in proof, we can say only FG = ½GC is correct.

Answer:

C

33

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

We know that the slope of a line passing through the points ( x ₁ , y₁) and ( x₂ , y₂ ) is ,

→ Slope ( m ) = ( y₂ - y₁) / ( x₂ - x ₁ )

→ m = -3 - y / -7 - (-1)

→ 1 = -(3+y)/ -7+1

→ 1 = -(3+y) / -6

→ 6 = 3 + y

→ y = 6 - 3

→ y = 3

Answer:

x=15, y=8

15 hats and 8 scarves

Step-by-step explanation:

hats=x

scarves=y

5x+3y=99

3x+5y=85

Answer:

Multiples of 4 are: 4, 8, 12, 16, 20, 24, 28, 32, 36, ...

Multiples of 6 are: 6, 12, 18, 24, 30, 36, ...

Step-by-step explanation:

If two numbers have no common factors greater than 1, then their LCM will be their product. For example, take numbers 7 and 9. They have none common factor greater than 1. So, LCM will be 7 * 9 = 63.

Answer:

I believe it is 48%

Step-by-step explanation:

The total amount of people who liked to read printed books is 67.

Then the total amount of people who liked either print or electronic books is 140.

If I am remembering correctly, you would divide 67 by 140 to get the percentage of people who like to read printed books.

67/140 = 48% (rounded)

Answer:

no

Step-by-step explanation:

Total distance he could have swam from the diving board to the end of the swimming pool. = 1 - 1/7 = 6/7

If he swam 4/5 of it, total distance swam = 6/7 x 4/5  = 24/35

total distance covered = 1/7 + 24 /35 = 29/35

Answer:

31500

Step-by-step explanation:

h t t p s://www.y o utube.com/watch?v=sSqJQVjkgBM

Answer:

Step-by-step explanation:

Answer:

the answer is 20.

Step-by-step explanation:

I hope that helps

Answer:

20

Step-by-step explanation:

(estimation)

Answer:

We have to draw it!

Step-by-step explanation:

Use graph paper:

4 units i graphed it out

The equation y=2x+3 matches the total height of a 3-inch tree after it grows 2 inches per month.

We have given, y=2x+3

We have to determine whether the equation matches y=2x+3.

The slope-intercept form of the line is y=mx+c.

Where m is the slope

C=y-intercept

Therefore option c is correct.

because the height is three inches and the tree after it grows 2 inches per month.

The slope of a line is a measure of its steepness.

Here the slope is 2 and the y-intercept is 3.

Therefore option c is correct.

To learn more about the slope intercept-form visit:

https://brainly.com/question/25826868

#SPJ2

Answer:

B

Step-by-step explanation:

40-2n

when n=2

simply replace n with 2

therefore we have

=40-2(2)

=40-4

answer=36

Answer:

Solution given:

length of cube[a]=6ft

volume of cube =a³=6³=216ft³

again

For cylinder

d=4ft

r=2ft

h=6ft

volume of cylinder=πr²h=π×2²×6=75.4ft³

Now

remaining volume=216-75.4=140.6ft³

is a required answer.

Answer:

y = -2x

Step-by-step explanation:

hhahahahhahaha hehe looking for my points

Answer:

The exact value of sin-1(√32) sin -1 ( 3 2 ) is π3 .

Step-by-step explanation:

Answer:

6.388

hope this helps

have a good day :)

Step-by-step explanation:

Answer:

6.38800

Step-by-step explanation:

Step-by-step explanation:

I don't know

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