Which property is demonstrated below?
a + b = b + a

Answer:

equation is y=2h+3

after 13 hours Gary will have written 29 pages

Step-by-step explanation:

Answer:

Linear relationship with negative slope

Step-by-step explanation:

This is a linear a linear relationship because most of the points are plotted in a line

It has a negative slope because it goes downwards from left to right which indicates that it has a negative slope

Answer:

B)

Step-by-step explanation:

The scatterplot makes a linear line starting in the top left and ending in the bottom right, meaning this slope is negative.

Answer:

31.94

Step-by-step explanation:

Answer:

13.85.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Hello There!

So first things first

we need to find the measure of ∠ABD

If you didn´t know the sum of the triangle angles is 180

so to find ∠ABD we subtract the given angles ( 30 and 25) from 180

180-25-30=125

so angle ∠125

Now lets find ∠DBC

∠ABD and ∠ DBC are supplementary angles so the sum of the two angles is 180

So to find ∠DBC we subtract 125 from 180

180-125=55

so ∠DBC = 55

Now we can find the measure of ∠BDC

remember like stated before the sum of all of the angles in a triangle is 180

So to find the measure of ∠BDC we subtract the given angles from 180

180-90-55=35

so we could conclude that ∠BDC = 35

Other ways to solve for ∠DBC:

angle DBC is an exterior angle of ΔABD

the measure of an exterior angle is equal to the sum of the opposite interior angles

so basically ∠DBC = ∠ADB + ∠BAD

30+25=55 so ∠DBC = 55

Other ways to find angle BDC:

Having found the measure of ∠DBA and the other opposite angle we could find ∠BDC

Like stated before the measure of an exterior angle is equal to the sum of the opposite interior angles

basically ∠DBA = ∠BDC + ∠BCA

we have the measures of ∠BCA and ∠DBA so we plug in the values

125=∠BDC+90

isolate the variable by subtracting each side by 90

125-90=35

we´re left with

∠BDC=35

I hope this helps and if you have anymore questions, feel free to ask! :)

Answer:

Depends on what w is determined as, for example, if w = 4 then the answer would be 80

Step-by-step explanation:

Basically since there is a w next to the 5 we can make the equation 5 x w x w, since 4 = w, it makes the equation 5 x 4 x 4, next we can do 4 x 4 which gives us 16, you could also do 5 x 4 which equals 20, then we do 16 x 5 or 20 x 4 which equals 80 and there is your answer. This basically applies to all numbers as long as it is [number x w x w] and [w = number] no matter how you change the sequence you get the same answer.

Answer:

91 minutes per song in a week

Step-by-step explanation:

1 hour 5 minutes each day = 65 minutes per day

Total time spent on practicing piano in a week = 7 × 65 minutes

= 455 minutes

She had 5 songs to practice and spent the same amount of time practicing each song

Amount of time to practice each song = Total time spent on practicing piano in a week / number of songs

= 455 minutes / 5

= 91 minutes per song in a week

Equivalent to 1 hour 31 minutes

Answer:

y=5x+100

Step-by-step explanation:

equation of a line is y=mx+c

where m=slope c=y-intercept

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:

the answer is 33

Step-by-step explanation: brainly  

Answer:

a

Step-by-step explanation:

Answer:

could we have a picture or the equation?? plz

Answer:

is there any more to the question??

~Stay Safe, I Guess ^-^

Step-by-step explanation:

tttttttttttttttttttttttttttt

Answer:1 uno

Step-by-step explanation:

Answer:

a³-b³= (a-b)(a²+ab+ b²)

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:

-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.

the correct answers are 3, 4 and 5

Answer:

so the slope of the line would be -2/-3

Step-by-step explanation:

6-8

= -2/-3

1-4

0.03 x 0.6

= (3 x 6) / 1000

= 18 / 1000

0.018

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]

Step-by-step explanation:

Brian takes = 43 minutes

Colin takes = 1 hour = 60 minutes

In ratio,

43/60

Answer:

Step-by-step explanation:

The model of the growth is:

Annual sales after 7 years:

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

18(X-3xy+2y)

Step-by-step explanation:

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

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