midterm help meeeeee plsss

Answer:

-13

Step-by-step explanation:

Well, they do most of the work for you all you have to figure out is what is "1/5(-65)". To do this you have to turn 1/5 into a decimal so 1 divided by 5 which equals 0.2 then multiply that by -65. That will give you your simplified answer of -13.

Step-by-step explanation:

Brian takes = 43 minutes

Colin takes = 1 hour = 60 minutes

In ratio,

43/60

Answer:

7.5 laps

Step-by-step explanation:

First, you wanna figure out how many yards is in one lap

to do this, you would multiply 100 and 4 (four because there's four equal sides  in one lap)

100 x 4 = 400

You know their speed is 5 yards per second, so you wanna find out how many seconds they will be running

to do this, you multiply 60 (sixty because there's sixty seconds in one minute) and 10 (ten because that's the given amount of minutes)

60 x 10 = 600 seconds

now to found out how much they will run in 10 minutes you will multiply 600 by 5

600 x 5 = 3000 yards

now to find how many laps this is, you can divide 3000 yards by 400 yards

3000 ÷ 400 = 7.5 laps

Answer:

a

Step-by-step explanation:

The circumference (C) of a circle is calculated as

C = 2πr ( r is the radius ) , then

C = 2π × 20 = 40π

ANSWER:

(x,y) = (5,-1)

Answer:

(5, -1)

Step-by-step explanation:

Solve the system of equations by elimination.

4x + 3y = 17

3x + 2y = 13

Multiply the top equation by -3 and the bottom equation by 4:

-12x - 9y = -51

12x + 8y = 52

Add these together:

-y = 1

y = -1

Plug in -1 as y into one of the equations, and solve for x:

4x + 3y = 17

4x + 3(-1) = 17

4x - 3 = 17

4x = 20

x = 5

So, the solution is (5, -1)

Answer:

a

Step-by-step explanation:

Answer:

Thats false

Step-by-step explanation:

When you multiply by a power your basically multiplying that number b itself 10x except for 1

18(X-3xy+2y)

Step-by-step explanation:

hope it helps just take 18 common mark me as the brainliest

Answer:

T = 12

Step-by-step explanation:

Vertical angles are congruent or equal each other.

8t + 1 = 97

8t + 1 -1 = 97 - 1

8t = 96

8t ÷ 8 = 96 ÷ 8

T = 12

Hope that helped you and have a great day!

Answer:

x=23

Step-by-step explanation:

Hello There!

Remember the exterior angle of a triangle is equal to the opposite interior angles of a triangle

so

137-x=2x+3x-1

now we can solve for x

step 1 combine like terms

2x+3x=5x

now we have

137-x=5x-1

step 2 add 1 to each side

-1+1 cancels out

137+1=138

138-x=5x

step 2 add x to each side

-x+x cancels out

5x+x=6x

now we have

138=6x

step 3 divide each side by 6

6x/6=x

138/6=23

we´re left with x=23

Answer:

could we have a picture or the equation?? plz

Answer:

is there any more to the question??

Answer:

equation is y=2h+3

after 13 hours Gary will have written 29 pages

Step-by-step explanation:

Answer:

3.4

Step-by-step explanation:

cosx = adj/hyp

cos61° = x/7

x= cos61° * 7

*degree mode

3.39

Answer:

a) y = 1.6x .

b) 197.8 .

Step-by-step explanation:

a) y ( Weight lbs. ), x ( Week ), Constant rate ( 1.6 ) .

b) 1.6 x 16 = 25.6 .

Hope this helps !

Answer:

215.4

Step-by-step explanation:

first u do 223.4 - 221.8 to find how much we losses a week which is 1.6 then u do 218.6 - 1.6 = 217 (week 5) then 217 - 1.6 = 215.4 (week 6)

Answer:

[tex] x = - \frac{2}{9} [/tex]

Step-by-step explanation:

Since, the geometric mean of x+3 and 4x+1 is 2x+1.

Therefore, by geometric mean theorem:

[tex] {(2x + 1)}^{2} = (x + 3)(4x + 1) \\ \\ \cancel{4 {x}^{2}} + 4x + 1 = \cancel{4 {x}^{2}} + x + 12x + 3 \\ \\ 4x + 1 = 13x + 3 \\ \\ 4x - 13x = 3 - 1 \\ \\ - 9x = 2 \\ \\ x = - \frac{2}{9} [/tex]

the correct answers are 3, 4 and 5

~Stay Safe, I Guess ^-^

Step-by-step explanation:

tttttttttttttttttttttttttttt

Answer:

12 seconds is ur answer....

Hope this will help you

Answer:

8cm

Step-by-step explanation:

Using the properties of a square, we know that a square has 4 sides, which are all of the same lengths.

Perimeter simply means the sum of all the outer lengths, so all we need to do is 32 ÷ 4, which = 8.

Answer:

Step-by-step explanation:

The model of the growth is:

Annual sales after 7 years:

0.03 x 0.6

= (3 x 6) / 1000

= 18 / 1000

0.018

Answer:

y = -x - 2

Step-by-step explanation:

y = x +  2        {Compare with y = mx + c}

Slope = m1 = 1

Slope of the line S = m2 = -1/m1 = -1/1 = -1

(-6 , 4)

y -y1 = m (x -x1)

y - 4 = (-1)(x - [-6] )

y -4 = (-1)(x + 6)

y -4 = (-1)*x + (-1) *6

y - 4 = -x - 6

     y = -x - 6 + 4

    y = -x - 2

Answer:

[tex]x < 8.75[/tex]

Step-by-step explanation:

1) Subtract 3 from both sides.

[tex]1.2x < 13.5 - 3[/tex]

2) Simplify 13.5 - 3 to 10.5.

[tex]1.2x < 10.5[/tex]

3) Divide both sides by 1.2.

[tex]x < \frac{10.5}{1.2} [/tex]

4) Simplify 10.5/1.2 to 8.75.

[tex]x < 8.75[/tex]

Therefor, the answer is x < 8.75.

Answer:

a³-b³= (a-b)(a²+ab+ b²)

Step-by-step explanation:

Answer:

I would say that -6 is not included because in order for a function to be included it has to ≤ or ≥. It should be greater than and equal to. 4 is the correct answer because x ≤ 4.

Answer:

0.5x - y = 1.5

Step-by-step explanation:

First, put the equation in point slope form:

y - y1 = m(x - x1)

y + 2 = 1/2(x + 1)

Distribute the 1/2:

y + 2 = 1/2x + 1/2

Change the fractions to decimals:

y + 2 = 0.5x + 0.5

Subtract y from both sides:

2 = 0.5x - y + 0.5

Subtract 0.5 from both sides:

1.5 = 0.5x - y

Rearrange the equation:

0.5x - y = 1.5

So, the equation of the line in standard form is 0.5x - y = 1.5