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podryga [215]
3 years ago
9

Help please i dont know how to do this​

Mathematics
2 answers:
Rzqust [24]3 years ago
5 0

Answer:

50%

Step-by-step explanation:

A full circle is 360°.

\frac{180}{360} =\frac{1}{2} =\frac{50}{100} = 50%

andre [41]3 years ago
3 0

Answer:

180/360 = 1/2 = 50/100 = 50%

Step-by-step explanation:

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For what value of “a”are the graphs of 5y = -2x + 10 and 3y = aX- 15 parallel
Pie

Answer:

a = -6/5

Step-by-step explanation:

For the graphs to be parallel the graphs should have same slope(m)

So we rewrite both our equations in the slope-intercept form then compare the slope to find the value of a like this,

y=mx+b

This equation is the slope-intercept form we convert both our equations in this form firstly taking equation 1

5y=-2x+10\\\\y=\frac{-2x+10}{5} \\\\y=\frac{-2}{5}x+\frac{10}{5} \\\\y=\frac{-2}{5}x+2

so if we compare it with y = mx + b the coefficient of x is m and hence

m= -2/5 now solving for equation 2

3y=ax-15\\\\y=\frac{ax-15}{3} \\\\y=\frac{ax}{3}-\frac{15}{3}  \\\\y=\frac{a}{3}x-5\\\\

so here if we compare it with y = mx + b the coeffienct of x is a/3 so since parallel lines have same slope by the formula:

m_1=m_2

we equation both the slope to each other to find the value of a like this,

m_1=m_2\\\\\frac{-2}{5}=\frac{a}{3}\\\\-2(3)=a(5)\\\\-6=5a\\-6/5=a

so the value of a equals

a= -6/5

8 0
2 years ago
What is 325 percent of 220
nikitadnepr [17]

Answer:

Step-by-step explanation:

325/220×100≈147.73

8 0
3 years ago
What’s the answer my phone calculator isn’t working
zubka84 [21]

Answer:

4.33

Step-by-step explanation:

If you don't have the cube root function in your calculator, u can chose a choice instead and cube the value.

9x9 is already 81, hence 9x9x9 > 81

27 x 27 Is definitely more than 81

Hence the only reasonable answer is 4.33

5 0
3 years ago
Simplify to a single power of 6:
Anestetic [448]

Answer:

6^2

Step-by-step explanation:

it is a division between two power with the same base, so we have to subtract the exponents

6^(6-4) = 6^2

5 0
3 years ago
Read 2 more answers
The solutions to (x + 3)^2- 4=0 are x = -1 and x = -5<br><br> True or false
Neko [114]

Answer:

THE ANSWER WOULD BE TRUE MY FRIEND

6 0
2 years ago
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