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3 years ago

Hey can u plz do this I will give Brainiest I got broken up with yesterday's d I'm sad so I can't rly think rn

Mathematics

1 answer:

Lisa [10]3 years ago

8 0

Answer:

Step-by-step explanation:

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Sylvie finds the solution to the system of equations by graphing. y = x + 1 and y = x – 1 Which graph shows the solution to Sylv

Alexeev081 [22]

The only solution is when y=y

x+1=x-1 subtract x from both sides

1=-1

This is never true so there are no solutions. In this case it is due to the fact that both lines have the same slope and different y-intercepts. This means that they are parallel lines that have a constant distance between them.

5 0

4 years ago

What is the volume of both shapes ?

Nataly [62]

Answer:

314 ft cubed

Step-by-step explanation:

To find the volume, find the volume of the cone and add it to the volume of the cylinder.

The volume of a cone is

$V= \frac{1}{3}\pi r^2 h= \frac{1}{3}\pi (5^2)(12) = \frac{1}{3}\pi (25)(12)= \frac{1}{3}\pi *300 = 100\pi$ .

The volume of the cylinder is

$V=\pi (5^2)(4)= \pi (25)(4)= 100\pi$

Together their volume is $100\pi+100\pi=200\pi \\200\pi =314ft^3$

6 0

3 years ago

manuel has $80 in a savings account that earns 5% annually. the interest is not compounded. How much will he have in one year?

Valentin [98]

$84
multiply 80 x 1.05 x 1
.05 is the interest, and that is added to the amount in the account, so you multiply the initial amount of 80 by 1.05

6 0

3 years ago

Please solve with working

ElenaW [278]

Answer:

293 ml

Step-by-step explanation:

volume of cylinder = πr²h

V = π * 36² * 72 = 293149 mm³ = 293.15 ml

3 0

3 years ago

Emmanuel bought 40 lb of potting soil this week. This amount is 4 lb more than three times the amount of potting soil he bought

aivan3 [116]

(a)
The unknown information is the amount of potting soil Emmanuel bought last week.

(b)
40 lb of potting soil is 4 lb more than 3 times p (the amount of potting soil he bought last week).

The equation:
$40=3p+4$

(c)
$40=3p+4 \ \ \ |\hbox{subtract 4} \\
36=3p \ \ \ \ \ \ \ \ |\hbox{divide by 3} \\
p=12$

The solution to the equation is 12.

(d)
Last week Emmanuel bought 12 lb of potting soil.

4 0

3 years ago