All categories

2 years ago

Solve |x-6|+8=17. A. x=-15 and x=3 B. x=15 and x=-15 C. x=15 and x=-3 D. x=-15 and x=-3

Mathematics

1 answer:

Tasya [4]2 years ago

3 0

Answer:

A. x=-15 and x=3

Step-by-step explanation:

|x+6|+8=17

|x+6|=9

-1(x+6)=9 x+6=9

-x-6=9 x=3

-x=15

x=-15

You might be interested in

7/8 = _ x _/8 Find the missing values for the multiplication equation

Bumek [7]

<span>A whole number is multiplied to a fraction by multiplying the whole number to numerator of the fraction while retaining the denominator of the fraction 7/8 = (7 x 1)/8 = 7 x 1/8. The number missing in the 1st blank is 7 while the number missing in the second blank is 1.</span>

6 0

3 years ago

3) Which property is used in the following ?<br> 9 x (4 + 2) = 9 x 4 + 9x2

kkurt [141]

Answer:

distributive

Step-by-step explanation:

You broke down the problem and made it longer instead of solving the parenthesies.

6 0

2 years ago

Read 2 more answers

The probability distribution of the amount of memory X (GB) in a purchased flash drive is given below. x 1 2 4 8 16 p(x) .05 .10

Rama09 [41]

Answer:

a) $E(X) = 6.45$

b) $E(X^{2} )= 57.25$

c) $V(X) = 15.648$

d) E(3X + 2) = 21.35

e) $E(3X^{2} +2) = 173.75$

f) V(3X+2) = 140.832

g) E(X+1) = 7.45

h) V(X+1) = 15.648

Step-by-step explanation:

a) $E(X) = \sum xP(x)$

$E(X) = (1*0.05) + (2*0.10) + (4*0.35) + (8*0.40) + (16*0.10)\\E(X) = 6.45$

$E(X^{2} ) = (1^{2} *0.05) + (2^{2} *0.10) + (4^{2} *0.35) + (8^{2} *0.40) + (16^{2} *0.10)\\ E(X^{2} )= 57.25$

$V(X) = E(X^{2} ) - (E(X))^{2} \\V(X) = 57.25 - 6.45^{2} \\V(X) = 15.648$

$E(3X+2) = 3E(X) + 2\\E(3X+2) = (3*6.45) + 2 \\E(3X+2) = 21.35$

$E(3X^{2} +2) = 3E(X^{2} ) + 2\\E(3X^{2} +2) = (3*57.25) + 2 \\E(3X^{2} +2) = 173.75$

$V(3X+2) = 3^{2} V(X)\\V(3X+2) = 9*15.648\\V(3X+2) = 140.832$

$E(X+1) = E(X) + 1\\E(X+1) = 6.45 + 1\\E(X+1) =7.45$

$V(X+1) = 1^{2} V(X)\\V(X+1) = 15.648$

6 0

3 years ago

Please help ASAP!!!!!!!!!!!

Sergeeva-Olga [200]

Answer:

it's too blurryyyyyyyyyyyyyyyyyyyyy

4 0

3 years ago

You have 16 coins that are heads up and 18 coins that are tails up. After you add some coins that are tails up, the ratio of hea

Gwar [14]

So 16=heads
18=tails
after you add some tails
18+x

ratio of heads to tails is 1:1.5
heads=16, didn't change
tails=18+x

so
1:1.5=16:18+x
fractionify
1/1.5=16/(18+x)
1/1.5=2/3
2/3=16/(18+x)
mutiply both sides by (3)(18+x)
2(18+x)=3(16)
36+2x=48
subtract 36 from both sides
2x=12
divide 2
x=6

6 tails added

total=heads+tails
heads=16
tails=18+6=24
total=16+24
total=40

6 tails added
40 total coins

6 0

2 years ago