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4 years ago

What is -3y+12=-48? Ueuehehhsh

Mathematics

2 answers:

Marina CMI [18]4 years ago

7 0

Answer:

-12

Step-by-step explanation:-3y+12=48

48-12= 36

36/ (-3) = -12

Natasha_Volkova [10]4 years ago

7 0

The answer is y = 20

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Find the product (4x-5y)^2

sleet_krkn [62]

To find the product of (4x-5y)^2,
we can rewrite the problem as:
(4x-5y)(4x-5y) (two times because it is squared)

Now, time to use that old method we learned in middle school:
FOIL. (Firsts, Outers, Inners, and Lasts)

FOIL can help us greatly in this scenario.
Let's start by multiplying the 'Firsts' together:
4x * 4x = 16x^2

Now, lets to the 'Outers':
4x * -5y = -20xy

Next, we can multiply the 'Inners':
-5y * 4x = -20xy

Finally, let's do the 'Lasts':
-5y * -5y = 25y^2

Now, we can take the products of these equations from FOIL and combine like terms. We have: 16x^2, -20xy, -20xy, and 25y^2.
-20xy and -20xy make -40xy.

The final equation (product of (4x-5y)^2) is:
16x^2 - 40xy + 25y^2

Hope I helped! If any of my math is wrong, please report and let me know!
Have a good one.

4 0

3 years ago

What is the exact area of a circle with a diameter of 20 cm?

Kisachek [45]

Hi there! The answer is 100πcm^2

The radius of a circle can be found by dividing the diameter by 2. In other words : the radius is half of the diameter.
Therefore, the radius of a circle with a diameter of 20 cm is 10 cm.

The exact area of a circle can be found using the following formula:
$a = \pi \times \: {r}^{2} \\ with \\ a = area \\ r = radius$

In order to find our answer, we need to plug in the data from the question.
$a = \pi \: \times {10}^{2} = 100\pi$

Hence, the answer is 100πcm^2.

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3 years ago

Find the total volume of the composite figure. Please help

Juli2301 [7.4K]

Answer:

Then, see how to find the volume of each of those individual figures to find the volume of the entire composite figure. Watch the whole process in this tutorial!

Step-by-step explanation:

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3 years ago

Write the following fractions in order from smallest to largest 3/10, 13/20, 22/25, 3/5

iren2701 [21]

Your answer from smallest to largest is:

3/10
3/5
13/20
22/25

6 0

4 years ago

How many number of terms does 5p^2-2p+3r have?

Helga [31]

Answer:

3 terms

Step-by-step explanation:

5 $p^{2}$ - 2p + 3r

It has 3 terms

They are as follows:

5 $p^{2}$

-2p

and 3r

Hope this helps

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7 0

3 years ago