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4 years ago

Write 0.7 as a fraction.

Mathematics

1 answer:

PIT_PIT [208]4 years ago

6 0

Answer:

7/10

Step-by-step explanation:

the '7' in 0.7 is in the tenths place of the decimal. So put 7 over 10 to create the fraction 7/10.

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TanA= 2xy/(x^2+y^2), find sinA

valina [46]

Step-by-step explanation:

TanA = SinA/CosA

tanA = 2xy / (x² + y²),

Sin A = CosA * 2xy / (x² + y²)

7 0

3 years ago

Taylor, Moore, and Jenkins are candidates for public office. It is estimated that Moore and Jenkins have about the same probabil

katrin [286]

Answer:

Taylor = 50%

Moore = 25%

Jenkins = 25%

Step-by-step explanation:

Assuming there are no other candidates and that someone has to win the election, the probabilities of Taylor, Moore, and Jenkins winning the election must add up to 1 or 100%.

$T+M+J = 1\\$

Since Moore and Jenkins have about the same probability of winning, and Taylor is believed to be twice as likely to win as either of the others:

$M=J\\T=2J\\J+J+2J=1\\J=0.25\\M=J=0.25\\T=2*0.25=0.5$

Taylor has a probability of 50% of winning the election.

Moore has a probability of 25% of winning the election.

Jenkins has a probability of 25% of winning the election.

3 0

3 years ago

What is the name of the regular polygon that measures 140ﾟ

andrezito [222]

Answer:

The regular polygon is a nonagon

Step-by-step explanation:

The correct question is

What is the name of the regular polygon that each interior angle measures 140ﾟ?

we know that

The formula to find the sum of the interior angles in a regular polygon is equal to

$n(a)=(n-2)180\°$

where

n is the number of sides of the regular polygon

a is the measure of each interior angle of the regular polygon

we have

$a=140\°$

substitute in the formula and solve for n

$n(140\°)=(n-2)180\°$

$140n=180n-360$

$180n-140n=360$

$40n=360$

$n=9\ sides$

The regular polygon has 9 sides

therefore

The regular polygon is a nonagon

5 0

3 years ago

What does x/4=3/2 equal?

MrRissso [65]

x/4 = 3/2
x/2 = 3 (multiply both sides by 2)
x = 6 (multiply both sides by 2)
Therefore 6/4 = 3/2

6 0

3 years ago

how do you do this? i don't need it solved i just don't know how to do it. i know the note on the side says how to but i'm still

olchik [2.2K]

Answer:

Perimeter of triangle J= 18.0 units (3 s.f.)

Perimeter of triangle K= 19.0 units (3 s.f.)

Step-by-step explanation:

The length of each side of the triangle can be found using the distance formula below:

$\boxed{d= \sqrt{(y1- y2)^{2} + (x1 - x2)^{2} } }$

Please see the attached pictures for full solution.

5 0

4 years ago