Consider the number set: 11, 12, 13, 14
Which value of x in the number set makes the equation 3x+2x-45=20 true?
a.) 11 / b.) 12 / c.) 13 / d.) 14

Answer:

the answer is C. 46 square inches

angles sum: 180(6-2) = 720

50 + 37 + 42 = 129

129 + 5x + 7x - 1 + 3x + 40 = 720

15x + 168 = 720

15x = 552

x = 36.8

check:

129 + 5(36.8) + (3(36.8) + 40) + (7(36.8) - 1) = 720

Correct answer??

180-50 = 130

180-37 = 143

180-42 = 138

Known internal angles:

130 + 143 + 138 = 411

15x + 39 + 411 = 720

15x = 270

x = 18

Answer:

If you was born in 1946 you would be twenty years old in:

1946+20

1966

Answer: 0.0002 I think sorry if im wrong

Step-by-step explanation:

Answer:

Step-by-step explanation:

for each bag of chips cost 1.5$ by rounding.

7 bags equal 10.50$

3 bucks per book so you can get 7 books for 21$

25cents per bracelet so its 2.75$ for 11

1- not sure, but my guess is C

2- 113? what did i do: I added all the sides and subtracted them by 720

3- 75

Answer:

36 milliliters of rain.

Step-by-step explanation:

The rate at which rain accumluated in a bucket is given by the function:

[tex]r(t)=10t-t^2[/tex]

Where r(t) is measured in milliliters per minute.

We want to find the total accumulation of rain from t = 0 to t = 3.

We can use the Net Change Theorem. So, we will integrate function r from t = 0 to t = 3:

[tex]\displaystyle \int_0^3r(t)\, dt[/tex]

Substitute:

[tex]=\displaystyle \int_0^3 10t-t^2\, dt[/tex]

Integrate:

[tex]\displaystyle =5t^2-\frac{1}{3}t^3\Big|_0^3[/tex]

Evaluate:

[tex]\displaystyle =(5(3)^2-\frac{1}{3}(3)^3)-(5(0)^2-\frac{1}{3}(0)^3)=36\text{ milliliters}[/tex]

36 milliliters of rain accumulated in the bucket from time t = 0 to t = 3.

Answer:

C

Step-by-step explanation:

The possible options are 1, 2, 3, 4, 5, and 6

Out of these, 4 and 6 are even and greater than two.

so it's asking for the chances of rolling 2 out of the available 6.

2/6 = 0.33333333333...

Multiply that by 100 and you have 33.3%

or 33 1/3

Answer:

9x^3 - 3x + 3

Step-by-step explanation:

(4x^3 + 3x + 1) - (-5x^3 + 6x - 2) =

= 4x^3 + 3x + 1 + 5x^3 - 6x + 2

= 9x^3 - 3x + 3

Answer:

9x^(3)-3x+3

Step-by-step explanation:

Answer:

(x+30)/(5x+4)

Step-by-step explanation:

I got this by putting f(x) over g(x), which will give you (x^2+28x−60)/(5x^2−6x−8).

You can simplify this by factoring in both the numerator and denominator:

((x-2)(x+30))/((5x+4)(x-2))

You'll notice that both the numerator and denominator have (x-2) so you can cancel them out.

You'll get (x+30)/(5x+4).

Answer:

f(x) = (x+14)^2 -202

g(x) = 5(x -3/5)^2 -49/5

Step-by-step explanation:

Factor out 5 from the expression

g(x) =5(x^2 -6/5x) -8

To complete the square, the same value needs to be added to both sides

g(x) +? =5(x^2 -6/5x +?) - 8

To complete the square

x^2 -6/5+9/25=(x-3/5)^2 add 9/25 to the expression

g(x) + ? = 5 (X^2 -6/5x + 9/25) -8

Since 5(9/25) was added to the right-hand side, also add 5(9/25) to the left-hand side of the equation.

Simplify the answer

g(x)+9/5=5(x-3/5)^2 -8

Move the constant to the right-hand side and change its sign

g(x)=5(x-3/5)^2-8 -9/5

Calculate the diference for the final answer.

Answer: c

Step-by-step explanation:

Answer:

B. 2.

Step-by-step explanation:

Y = -2x + 4

2

...... ....

Answer:

The answes is x=2

y = -2x + 4

0=-2x+4

-2x+4

2x=4

x=2

B

Answer:

$72.80

give brainlyiest

Step-by-step explanation:

364 x .20 = 72.8

#3 maybe be wrong, sorry if it is

i think it B

okkkkkkkkkkkkkkkkkkk

Answer:

The answer is C

I hope this helped.

Answer: 1 m is 9 there are 7 m so 7X9 =63

Step-by-step explanation:

Answer:

the answer would be 9

expination:

because 63 divide by 7 would be 9

Answer:

b is 9

Step-by-step explanation:

okay

please mark me as brainlist and be happy also add me on sñap

arshad2623f

i will be happy <3

Answer:

its 9 this has to be at least 20 characters

Answer:

2

Step-by-step explanation:

Because To get a single x you would have to divide 5x by 5. Whatever you do to one side you have to do to the other so you would do 5 x/5 and get 10/5 and then x=10/5 and 10/5 equals 2 so...x=2 , Hope this helped!

Answer:

a

what's the opposite of -24 its 24 so it rational i think

Answer:

Please refer to the attachment

Answer:

This is not collage level, its middle school level lol

Step-by-step explanation:

Answer:

80 KM/H

Step-by-step explanation:

45/60 = 3/4

3/4X = 60 KM

THEN X = 80 KM/H

Answer:

80km/h

Step-by-step explanation:

hope this helps!

habe a good day :)

Answer:

A. 6π in²  (as far as I know)

Step-by-step explanation:

The formula to find the area of a sector of a circle is A = π r² • [tex]\frac{Central Angle}{360}[/tex].

To solve, insert your numbers into the formula. The radius is 4√3, and that squared equals 48. The central angle is 45, and that divided by 360 is 0.125.

You end up with the equation A = 3.14 • 48 • 0.125, which equals 18.84. I'm not sure if I learned this the same way you did because the answers are formatted differently, but the answer of the choices available that matches 18.84 is answer A. 6π in².

When you multiply 6 by 3.14 (like in the answer choice) you get 18.84, so that should be the answer.

I hope this made sense! ☺

Yes the Frist question is 15 students

the second question is 5 well I mean if you do it by Khan academy

the third one is well three dozen eggs are cracked, so probably 12?

Answer:

990

Step-by-step explanation:

20 goes into 100 5 times.

198 x 5 = 990

Answer:

i have no idea how to work this sorry!

Answer:

5

Step-by-step explanation: im doing the questions now

Answer:

the first answer is 5.

the second answer is a.

Step-by-step explanation:

Answer:

This is your answer ☺️☺️☺️