Open the following image :)
ASAP!!!

Answer:

r = 9

Step-by-step explanation:

2 ( r - 1 ) + 3 = 19

2r - 2 = 19 - 3

2r - 2 = 16

2r = 16 + 2

2r = 18

r = 9

Answer:

No y intercept! It's a vertical line. x= -1 though. (I think)

Step-by-step explanation:

Answer: 28°

Step-by-step explanation:

Add 79+73 and subtract from 180°

Answer:

10+11g

Step-by-step explanation:

Answer:

As you should

Step-by-step explanation:

Answer:

PURRIOD

Step-by-step explanation:

Answer:

i think its 115.6 ft

Step-by-step explanation:

Answer:

The additive inverse of 1/3 is -1/3

Step-by-step explanation:

Since, 1/3+(-1/3) = 0

Answer:

$3.25 per cone

Step-by-step explanation:

$22.75/7 =3.25

Answer:

3.25

Step-by-step explanation:

Answer:

b < 5

Step-by-step explanation:

subtract 2 from each side

Answer:

b < 5

Step-by-step explanation:

b + 2 < 7

    -2    -2

b < 7

Answer:

The first answer is -2x^2-12x-19

The second answer is 2x^2+12x+17

Step-by-step explanation:

You can calculate the vertex of each one by using the formula -b/2a =x and then plugging that in for x to find y but that's a lot of work so I just plugged them into desmos

Answer:

Slope:

−

3

2

y-intercept:

6

Step-by-step explanation:

Answer:

like y⁵×y ?

Step-by-step explanation:

is that what your asking?

(Solving for x on question - 2x + 3y = 32)

2x + 3y = 32

Step 1: Add -3y to both sides.

2x + 3y + −3y = 32 + −3y

2x = −3y + 32

Step 2: Divide both sides by 2.

[tex]\frac{2x}{2}[/tex]  = [tex]\frac{-3y+32}{2}[/tex]

x =  [tex]\frac{-3}{2}[/tex]⁻y + 16                                                                                                                

(Solving for y on question - 2x + 3y = 32)

2x + 3y = 32

Step 1: Add -2x to both sides.

2x + 3y + −2x = 32+ −2x

3y = −2x + 32

Step 2: Divide both sides by 3.

[tex]\frac{3y}{3}[/tex] =  [tex]\frac{-2x+32}{3}[/tex]

y = [tex]\frac{-2}{3}[/tex]x + [tex]\frac{32}{3}[/tex]                                                                                                          

(Solving for x on question - 5x - 4y = -81)

5x − 4y = −81

Step 1: Add 4y to both sides.

5x − 4y + 4y = −81 + 4y

5x = 4y − 81

Step 2: Divide both sides by 5.

[tex]\frac{5x}{5}[/tex] =  [tex]\frac{4y-81}{5}[/tex]

x =  [tex]\frac{4}{5}[/tex]y + [tex]\frac{-81}{5}[/tex]                                                                                                              

(Solving for y on question - 5x - 4y = -81 )

5x − 4y = −81

Step 1: Add -5x to both sides.

5x − 4y + −5x = −81 + −5x

−4y = −5x − 81

Step 2: Divide both sides by -4.

[tex]\frac{-4y}{-4}[/tex] = [tex]\frac{-5x-81}{-4}[/tex]

y =  [tex]\frac{-5}{4}[/tex]x + [tex]\frac{81}{4}[/tex]

Answer:

67.5cm^2

Step-by-step explanation:

area of a triangle is 0.5xaxb

answer : 54cm^2

pythagorus’ theorum : a^2 + b^2 = c^2

so 9^2 + x^2 = 15^2, x being the missing length

work out x ...

81 + x^2 = 225

x^2 = 144

x = 12

area of a triangle : 0.5 x base x height

so 0.5 x 9 x 12 = 54

Answer is $15,840.00

................

Answer:

-21, -18. -15, -12, -9, -6, -3, 0, 3, 6, 9, 12, 15, 18

Step-by-step explanation:

=========================================================

Explanation:

x = number of minutes

y = amount of grain left over, in cubic meters

We can abbreviate "cubic meters" into "m^3" without quotes of course.

The silo holds 2000 m^3 of grain. This is the initial value, so it is the y intercept. This means b = 2000. If the silo wasn't completely full, then we'd have to use a different initial value.

The slope is -9 because the amount of grain decreases by 9 cubic meters per minute. We can think of it like

slope = rise/run = (change in y)/(change in x)

slope = (change in grain)/(change in time)

Saying slope = -9/1 means the change in grain is -9 m^3 and the change in time is 1 minute.

Because the slope is -9, we say that m = -9

Therefore, we go from y = mx+b to y = -9x+2000

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

Note how plugging x = 0 into the equation leads to

y = -9x+2000

y = -9*0+2000

y = 0 + 2000

y = 2000

Showing that after 0 minutes, aka at the start, we have 2000 m^3 of grain.

Then at the x = 1 minute mark, we have...

y = -9x+2000

y = -9*1+2000

y = -9+2000

y = 1991

Showing that the silo lost 9 m^3 of grain since 2000-1991 = 9.

The graph y = -9x+2000 is a straight line that goes through the two points (0,2000) and (1,1991).

Answer:

(4x−5)(x−4)

Step-by-step explanation:

Knowing how to factor is very important and while it is a lot to explain I would be happy to. just let me know

I got (4x−5)(x−4)

Answer:

6 buses

Step-by-step explanation:

138 students / 23 students per bus = 6 buses

Answer:

they'll need 6 buses

Step-by-step explanation:

138 students divided by 23 leads for 6 buses needed

Answer:

a

Step-by-step explanation:

Answer:

24.8

Step-by-step explanation:

180-117.6 = 62.4

62.4 = 2x + 12.8

- 12.8         -12.8

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

49.6 = 2x

 /2       /2

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

x = 24.8

Answer:

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

=(2x)^2 + [5y+3y]2x + (5y)(3y)

=4x^2 +16xy + 15y^2

Step-by-step explanation:

Answer:

75

Step-by-step explanation:

Have a great day mark me branly

Answer:

You will save $75 dollars if you buy it.

Step-by-step explanation:

$500 - 0.15 x $500 = $425

$500 - $425 = $75

Hope this helps!

Answer:

90

Step-by-step explanation:

6300/70=90

Answer:

43/18

Step-by-step explanation:

Answer:

1.5 hours

Step-by-step explanation:

According to the scenario, computation of the given data are as follows,

Aya and Mary distance = 12 miles

Let, meeting point from Aya = Z miles

So, Aya covers Z miles to reach Mary.

Hence, Mary covers (12 - Z ) miles to reach Aya

Here, Time = [tex]\frac{Distance}{Speed}[/tex]

Aya = [tex]\frac{Z}{5}[/tex]

Mary = [tex]\frac{12-Z}{3}[/tex]

If, same time taken, then we can solve by following method,

[tex]\frac{Z}{5} = \frac{12-Z}{3}[/tex]

By solving the equation, we get

Z = 60 ÷ 8

Or Z = 7.5 miles

Hence, time taken for both to meet = 7.5 ÷ 5

= 1.5 hours