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Pepsi [2]
3 years ago
15

I need help please asap

Mathematics
1 answer:
Elenna [48]3 years ago
8 0

Answer:

22. C to D

23. Sam's height

Step-by-step explanation:

Acronym: King Henry Died Unusually Drinking Chocolate Milk

                i         e        e       n                e             e                i

                l         c         c       i                 c             n                l

                o        t         a        t                 i              t                l

                          o                                                    i                i

22. 4 km < 4.15 km

23. 1.16 m > 0.98 m

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If DF = 9x - 39, find Ef
Leviafan [203]
|DF| = |DE| + |EF| |DF| = 9x -36 |DE| = 47 |EF| = 3x+10 Substitute: 9x - 39 = 47 + 3x + 10 9x - 39 = 3x + 57 |+39 9x = 3x + 96 |-3x 6x = 96 |:6 x = 16 Put the value of x to the equation |EF| = 3x + 10 |EF| = (3)(16) + 10 = 48 + 10 = 58 Answer: |EF| = 58

Read more at Answer.Ya.Guru – https://answer.ya.guru/questions/4046336-if-df-9x-39-find-ef.html
4 0
2 years ago
To three decimal places, find the average value of f(x) = 2x2 + 3 on the interval [0, 2].
salantis [7]
The formula for the average value of a function is \frac{1}{b-a}  \int\limits^b_a {f(x)} \, dx where b is the upper bound and a is the lower.  For us, this formula will be filled in accordingly.  \frac{1}{2}  \int\limits^2_0 {(2x^2+3)} \, dx.  We will integrate that now: \frac{1}{2}[ \frac{2x^3}{3}+3x] from 0 to 2.  Filling in our upper and lower bounds we have \frac{1}{2}[( \frac{2(2^3)}{3}+3(2))-0] which simplifies to \frac{1}{2}( \frac{16}{3}+6) and \frac{1}{2}( \frac{16}{3}+ \frac{18}{3})= \frac{1}{2}( \frac{34}{3}) which is 17/3 or 5.667
7 0
3 years ago
If Sue worked 28 hours this week and made $172 in tips, how much did her weekly pay
sergejj [24]
Do 178 times 28 which equals 4,984 then you do 4,984 decided by 7 which equals 712 because there are 7 days a week. So the answer is 712.
6 0
2 years ago
Read 2 more answers
The quadrilaterals are similar.
Temka [501]

Answer:

a

Step-by-step explanation:

CB and GF are the same side and u can see that CB is two times larger than GF so GH is two times smaller then CD

3 0
3 years ago
Solve and show work:
Katyanochek1 [597]

Im a keep editing since this is timed.


#1 x-8a/6=3a-2x


Multiply each term by 6 to remove fraction .


6(x-8a/6)= 3a(6)-2x(6)


X-8a=18a-12x


Add 12x both sides


X+12x-8a=18a-12x+12x


13x-8a= 18a


Add8a both sides


13x-8a+8a=18a+8a


13x=26a

Divide each side by 13


13x/13=26a/13


X= 26a/13


Reduce and cancel common factor .


X= 13(2a)/13(1)


X=2a/1


X=2a


Problem #2

3x-2a=7a find a


Subtract 3x both sides


3x-3x-2a=7a-3x


-2a=7a-3x


Subtract 7a both sides

-2a-7a=7a-7a-3x


5a=-3x

Divide both sides by 5

5a/5=-3x/5


A= -0.6 or -3/5


Problem#3

3(bx-2ab)=b(x-7a)+3ab


Distributed property


3(bx)+3(-2ab)=b(x)+b(-7a)+3ab


Simplify

3bx-6ab=bx-7ab+3ab


Add -7a plus 3ab on right side


3bx-6ab= bx-4ab


Subtract bx both sides


3bx-bx-6ab= bx -bx -4ab


Simplify


2bx-6ab= -4ab


Add 6ab both sides


2bx-6ab+6ab=6ab-4ab


2bx=2ab


Divide 2b both sides


X= 2ab/2b


Cancel 2 common


X= ab/b


X=a




7 0
2 years ago
Read 2 more answers
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