What is wrong with this solution? -6t + 16 = -8 Step One: -6t + 16 = -8 - 16 Step Two: -6 • -6t = -24 • -6 Solution: t = 144

Answer:

[tex] {3y}^{3} - 12y \\ = 3y( {y}^{2} - 4) \\ = 3y( {y}^{2} - {2}^{2} ) \\ = 3y(y - 2)(y + 2) \\ = 3y(y + 2)(y - 2)[/tex]

a^2-b^2=(a+b)(a-b)

a=y b=2

3y(y+2)(y-2)

Answer:

2x + 20 = 3x-10

2x -3x = -20-10

-x = -30

x= 30

Checking part:

2x+20 = 2(30) +20 = 60+20 = 80

3x-10 = 3(30) - 10 = 90-10 = 80

Hence, the final answer is x = 30.

Step-by-step explanation:

Answer:

30

Step-by-step explanation:

the angle should be the same so,

2x+20=3x-10

x=30

what do you mean find y? I can't see it

Answer:

1.52

Step-by-step explanation:

38 decreased by 4% = 36.48

Absolute change (actual difference):

36.48 - 38 = - 1.52

Answer:

Step-by-step explanation:

-5a^2+ 5a factors as follows:  -5(a - 1) (so -5 goes into the blank space).

 18x^2 + 2x³ factors as follows:  2x^2(x + 9) (so 2x^2 goes into the blank    space)

Answer:

c

Step-by-step explanation:

edge 20220020

Answer:

D

Step-by-step explanation:

treust mememe

Answer:

1/6

Step-by-step explanation:

Answer:

i think 8

Step-by-step explanation:

Answer:

Step-by-step explanation:

The answer is nine 100% sure

Answer:

the answer is −4x+10y−6z

Step-by-step explanation:

(−2x+5y−3z)2

Use the distributive property to multiply −2x+5y−3z by 2.

−4x+10y−6z

Answer:

(-2x+5y-3z)2

-2x*2+5y*2-3z*2

-4x+10y-6x

Step-by-step explanation:

Hope this helps u!!

Answer:

8.77 or 8.80

Step-by-step explanation:

sin (20) = 3/x

x (sin)20)) = 3

divide by sin(20)

x= 8.77 or 8.8

Answer:

x = 11 explanation : " $3 subtracted from the cost of the book just number 8! " As an equation this would be : x - 3 = 8 SOLVE x - 3 = 8   + 3  + 3 x = 11 KEY x = cost of book 

hope it helps

Answer:

A

Step-by-step explanation:

Just A!

Answer:

Step-by-step explanation:

Never capitalize the seasons

Answer:

The answer would be 5.5

Step-by-step explanation:

To prove it, 10 x 2.5 x 5.5 would equal 137.5

Answer:

Step-by-step explanation:

x= -7; (0.2)

x  =  1.4

----------------

y =−  2  x   −7

I really hope this helps

Answer:

answer is a

Step-by-step explanation:

Answer:

75ft^2

Step-by-step explanation:

A = pi*r^2

The circle already gives the diameter and the diameter is two times the radius, so if you were to divide the diameter by two, you would get 5.

Knowing the radius is 5 and seeing how they replaced pi with 3 we can set up the equation.

3*(5)^2 = A

Simplify

3*25

Multiply

Area=75ft^2

Answer:

The interval is [4,7]

Step-by-step explanation:

The rate of change is given by

f(x2) - f(x1)

-------------------

x2 -x1

We want the rate of change to be 56

f(x2) - f(x1)

-------------------  = 56

x2 -x1

We also know that the x2 is 7  so f(x2) = 192

192 - f(x1)

-------------------  = 56

7 -x1

192 - f(x1) = 56( 7 -x1)

192 - f(x1) = 392 -56x1

Now we need to pick points from the table and see where it is true

(6,96)

192 - 96 = 392 -56*6

96=56  False

( 5,28)

192 - 28 = 392 -56*5

164=112  False

(4,24)

192 - 24 = 392 -56*4

168=168  True

The interval is [4,7]

Answer:

Step-by-step explanation:

Answer:

The answer is letter D.

why?

Step-by-step explanation:

Id.k -_-

j0ke

=

2

π

r

=

2

π

3

≈

18.84956

and that's it

HOPE IT HELPS

(FROM CROSS)

Answer:

$4

Step-by-step explanation:

Given that

total cost of 8 identical pens and 2 identical files is $32

And, the The total cost of 3 such files would be the same  as the total cost of 4 such pens

We need to find out the cost of each file

So let us assume the following things

Pens be x

File be y

Now

8x + 2y = $32 ....(1)

3y = 4x.........(2)

y =  4x÷ 3

Now put the value of y in equation 1

8x + 1.33x = 32

x = $3.55

x = $4

The cost of each file based on the given information is $4

where:

If the total cost of 8 identical pens and 2 identical files is $32, hence;

8x + 2y = 32

If the total cost of 3 such files is the same as the total cost of 4 such pens, then;

4x = 3y

From the equation

8x + 2y = 32

2(4x) + 2y = 32

2(3y) + 2y = 32

8y = 32

y = 4

Since 6=4x = 3y

4x = 3(4)

4x = 12

x= 3

Hence the cost of each file is $4

Learn more on simultaneous equation here: https://brainly.com/question/6597041

Answer:

Let the scores on the first two test be x

Let score for third test be 14 exceeds second( or first) = x + 14

Total = 233

x + x + (x + 14) = 233

3x + 14 = 233

3x = 219

x = 73

Score of the third test = x + 14 = 73 + 14 = 87

Therefore, the scores are 73, 73, 87

Answer:

B,48.2

Step-by-step explanation:

To solve this we need to use SOH, CAH, TOA

we have the adjacent and hypotonouse so it's easiest to use CAH

let theta (angle) = x

cos(x)=4/6

to cancel the cos mulitply both sides by cos^-1 (2nd --> cos)

x=48.1896851

which rounds to 48.2

Answer:

13)  8r = 256;   r = 32

14)  f = 2(5)

15)  8t = 208;    208/8 = 26

Step-by-step explanation:

just add them up! and then u shall be good

Answer:

36 units

Step-by-step explanation:

5 + 13 + 5 + 13

10 + 13 + 13

10 + 26

36

Answer: D

Step-by-step explanation:

trust me

Answer:

um could you transkate to english so i can answer your question?

Step-by-step explanation:

Answer:

You can find 0.5% of a number by multiplying the number by

Step-by-step explanation:

Answer:

31.4

Step-by-step explanation:

Answer:

18

Step-by-step explanation:

( 3 + √3 ) ( 5 - √2 )

= 3 ( 5 - √2 ) + √3 ( 5 - √2 )

= 15 - 3√2 + 5√3 - √6

√2 = 1.41 ( approximately )

3√2

= 3 x 1.41

= 4.23

√6 = 2.44

√3 = 1.73

5√3

= 5 x 1.73

= 8.65

15 - 3√2 + 5√3 - √6

= 15 - 4.23 + 8.63 - 2.44

= 15 + 8.63 - 4.23 - 2.44

= 15 + 8.63 - 6.67

= 15 + 1.93

= 16.93

Rounding of 16.93 = 17

17 is near to 18.

So, 18 can be the answer.

Answer:

7= 800 √5

8= √10/2