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Wewaii [24]
2 years ago
11

Be confident and be paitent to help people tahnky ou

Mathematics
1 answer:
Aleksandr [31]2 years ago
4 0
12!!!! Hope this helped and good encouragement
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Can you please help me??
Bond [772]
5% = .05 = R
50% = .5 = O
100% = 1 = E
2% = 1/50 = V
55% = .55 = T
20% = 1/5 = N
1% = 1/100 = C
7 0
2 years ago
Plssss help!!<br><br> find the area of the regular polygon
Pavel [41]

Answer:

wiat ill work this out for you

Step-by-step explanation:

7 0
2 years ago
A ball-shaped like a sphere has a radius of 2.7 cm. Which measurement is closest to the volume of the ball in cubic cm?
wariber [46]

Answer:

Step-by-step explanation:

V = 4/3 * pi * r^3

V = 4/3 * 22/7 * 2.7^3

V = 82.5 cm^3

8 0
3 years ago
If the atomic number is 15 how many protons will it have?
andrey2020 [161]
It will have 15 protons because the atomic number will always equal the number of protons and vice versa
6 0
3 years ago
Help please jggvnhujff
saveliy_v [14]

Answer:

Step-by-step explanation:

<u><em>8).</em></u>  \left \{ {{4x+3y=1} \atop {x+y=2}} \right.

<em>(2)</em> × [ - 3 ]

4x + 3y = 1 ........ <em>(3)</em>

- 3x - 3y = - 6 .... <em>(4)</em>

<em>(3)</em> + <em>(4)</em>

x = - 5

- 5 + y = 2 ⇒ y = 7

<em>( - 5 , 7 )</em>

<u><em>9).</em></u> \left \{ {{-9x+3y=18} \atop {2x+y=-4}} \right.

<em>(1)</em> ÷ [- 3]

3x - y = - 6  ......... <em>(3)</em>

2x + y = - 4 ........ <em>(4)</em>

<em>(3)</em> + <em>(4)</em>

5x = - 10 ⇒ x = - 2

2(- 2) + y = - 4 ⇒ y = 0

<em>(- 2, 0)</em>

<u><em>10).</em></u> \left \{ {{x-2y=14} \atop {10x-6y=0}} \right.

<em>(2)</em> ÷ 10

x - 0.6y = 0 ⇒ x = 0.6y -----> <em>(1)</em>

0.6y - 2y = 14

- 1.4y = 14

y = - 10

x - 2(- 10) = 14 ⇒ x = - 6

<em>(- 6, - 10)</em>

Now is your turn, you can do it!!

3 0
3 years ago
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