4 years ago

PLEASE HELP!

1 answer:

6 0

Ok so 5x20 is 100 and 3x20 is 60 then add 3 is 63 apps that she downloaded then 100-63 is 37 apps that she still has space for.

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What is the surface area of the cylinder?

Aleks04 [339]

Step-by-step explanation:

A=2πrh+2πr2 ans for 1 one

8 0

3 years ago

X³ by a³ + a³by x³=p x³by a³- a³by ³=q eliminate x

sasho [114]

Answer:

Step-by-step explanation:

$\frac{x^3}{a^3} +\frac{a^3}{x^3} =p\\\frac{x^3}{a^3} -\frac{a^3}{x^3} =q\\adding\\2\frac{x^3}{a^3} =p+q\\\frac{x^3}{a^3} =\frac{p+q}{2} \\substitute~in~first\\\frac{p+q}{2} +\frac{2}{p+q} =p\\\frac{(p+q)^2+4}{2(p+q)} =p\\(p+q)^2+4=2p(p+q)\\p^2+q^2+2pq+4-2p^2-2pq=0\\q^2-p^2+4=0\\q^2=p^2-4$

6 0

3 years ago

1. The cost of petrol rises by 2 cents a liter. last week a man bought 20 liters at the old price. This week he bought 10 liters

AnnyKZ [126]

Answer for #1

Let the old price be
$
x
per liter. 10 liters would have cost a total of
$
10
x
.

The new price is
$
(
x
+
0.20
)
per liter. 10 liters would have cost
$
10
(
x
+
0.20
)
.

The total cost is
$
9.20
. So,

10
x
+
10
(
x
+
0.20
)
=
9.20
10
x
+
10
x
=
9.20
−
2
x
=
7.20
20
x
=
0.36

Thus, the old price was
$
0.36
per liter.

8 0

3 years ago

I'm Begging for somebody to do this worksheet. I can mark you brainiest and you will earn 15 points just please anybody?

Volgvan

Answer:

236

Step-by-step explanation:

lolo

3 0

3 years ago

Read 2 more answers

An attendant recorded the data in the table showing the types and colors of vehicles that parked in a parking lot. (Refer to the

DedPeter [7]

Answer:

<h2>There are 22% of chances that the next vehicle in the lot is a red car.</h2>

Step-by-step explanation:

The event is a red car vehicle. So, the experimental probability would be the ratio between the total number of red car vehicles and the total number of cars.

Notice that there are 22 red vehicles in total, and there are 100 cars in total. So, the ratio is

$P=\frac{22}{100} = \frac{11}{50} = 0.22$

Therefore, there are 22% of chances that the next vehicle in the lot is a red car.

3 0

4 years ago