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3 years ago

I need help with this?

Mathematics

1 answer:

Masja [62]3 years ago

4 0

since u know that there is 60 minutes in a hour do 60 times 3 and u will get 180.then do 180 divided by28 and u will get ur final answer which is 6 minutes and 12 seconds

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What is the answer to this question

Kitty [74]

Answer:

Step-by-step explanation:

it is the only non-multiple of 3 and 4

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2 years ago

Write each expression in exponential form 2 x 2 x 2 x 2 =

jok3333 [9.3K]

Answer:

2^4

Step-by-step explanation:

there are four 2's being multiplied to each other.

You can combine them and say 2 x 2 x 2 x 2 = 2 ^4

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3 years ago

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A penguin can dive 48 meters below the surface of the water to reach a fish. It dives 2% of the total depth every 1 second.

nikitadnepr [17]

The answer is A- 3.84 meters

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2 years ago

Help please!! 10 points <3

tangare [24]

Answer:

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Step-by-step explanation:

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2 years ago

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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