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Mathematics

1 answer:

Schach [20]3 years ago

3 0

Answer:

10p

Step-by-step explanation:

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Can someone please help me with this real quick

masya89 [10]

Answer:

Surface Area = 2 ×22 /7 × 2 ×2 + 2 ×22 /7 ×2 × 14

= 176 / 7 + 1232 /7

= 176 / 7 + 176

= 352 / 7

= 50.2857

Hope it helps!!!

7 0

3 years ago

What is the top one :(

IrinaK [193]

Answer:

<em>All answer below</em>

Step-by-step explanation:

<u>Equation of the Line</u>

The standard form of the equation of a line is shown below:

Ax+By=C

And the slope-intercept form is:

y = mx + b

Where m is the slope and b is the y-intercept.

If we wanted to convert from the first form to the second we will perform the following operations:

Subtract Ax:

By = -Ax + C

Divide by B:

y = -A/Bx+C/B

The coefficient of x is -A/B (fill the blank with that text) and the y-intercept is C/B (again, fill in the blank)

The slope m is the coefficient of x, m=-A/B and it can be found it you divide the opposite of A by B. The selected option is correct.

The y-intercept is the division of C by B. Again, the selected option is correct.

7 0

3 years ago

If the given values in a right triangle are cos A =

Vlad1618 [11]

See the picture attached to better understand the problem

we know that
in the right triangle ABC
cos A=AC/AB
cos A=1/3
so
1/3=AC/AB----->AB=3*AC-----> square----> AB²=9*AC²----> equation 1

applying the Pythagoras Theorem
BC²+AC²=AB²-----> 2²+AC²=AB²---> 4+AC²=AB²----> equation 2

substitute equation 1 in equation 2
4+AC²=9*AC²----> 8*AC²=4----> AC²=1/2----> AC=√2/2
so
AB²=9*AC²----> AB²=9*(√2/2)²----> AB=(3√2)/2

the answer is
the hypotenuse is (3√2)/2