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2 years ago

What is 13x7?????????????

Mathematics

2 answers:

m_a_m_a [10]2 years ago

7 0

91 ! just use a calculator or do it by hand

lilavasa [31]2 years ago

6 0

The answer is 91

Hope this helped :)

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The formula for the surface area, S, of a cylinder, is S = 2tr2 + 2trh, where h is

kykrilka [37]

Answer:

H = 2 S = 50 A = 50.2

Step-by-step explanation:

A=2πrh+2πr2

S = 2tr2 + 2trh

S = 2 (t x r) + (h x 2t) x r Try out ^2 for Radius

S = 2t x r^2 + r x h x 2t Rearrange back and cross out for square^2

S = 6t x 4 + 6t x r x h Cross out for t

S = 6 x 4 + 6 x 2 x h Balance out...

S= 24 + 12 x 2 Find h = 2

S = 36 + 24

S= 50 sq2

A = 50. 2

R = 2

H = 2

Checker

Area = 6.28318530718 x 4 + 6.28318530718 x 2 x 2 = 50.27sq2

7 0

2 years ago

What is the solution to the system please help

IrinaVladis [17]

Answer:

$(-\frac{50}{13},-\frac{12}{13})$

Step-by-step explanation:

To start, you need to find the equation of both of these lines. For the orange one, the slope can be found with the points (-5,0) and (0,-4), where there is a drop of 4 for a run of 5. This is a slope of -4/5, and a y-intercept of -4. For the purple line, you can use the points (-2,0) and (0,1), where there is a rise of 1 for a run of 2 or a slope of 1/2 and a y intercept of 1. Therefore, the two equations are:

$y=-\frac{4}{5}x-4$

$y=\frac{1}{2}x+1$

You can now set them equal to each other:

$-\frac{4}{5}x-4=\frac{1}{2}x+1$

Add 4 to both sides:

$-\frac{4}{5}x=\frac{1}{2}x+5$

Multiply both sides by 2:

$-\frac{8}{5}x=x+10$

Multiply both sides by 5:

$-8x=5x+50$

Subtract 5x from both sides:

$-13x=50$

Divide both sides by -13:

$x=-\frac{50}{13}$

$y=-\frac{12}{13}$

Hope this helps!

7 0

2 years ago

(look at image) can someone explain to me how to do number 1

Rufina [12.5K]

Answer:

so it would be y= -4x + 3

Step-by-step explanation:

its asking to write the equation in slope-intercept form so y=mx+b m in this case is -4 and b whihc is the y-intercept is 3 so you just write the equation y= -4x + 3

5 0

2 years ago

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What is the value of x?

Olin [163]

Answer:

An x-coordinate is the x value in an ordered pair, which is just two mathematical objects, such as numbers, paired together. ... For instance, in the ordered pair (2,5), the x-coordinate would be '2. ' This value tells you how far a point is from the origin, or starting point, in the x direction on a 2-dimensional graph.

Step-by-step explanation:

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1 year ago

Find the expected value of the winnings

Bas_tet [7]

Answer:

2.65

Step-by-step explanation:

Multiply each payout by its probability, then add those products.

See the attached image.

The first column has the payouts. The second column has the probabilities. The third column has the results of multiplying a payout by its probability.

The sum of the entries in the third column is 2.65

6 0

2 years ago

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