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4 years ago

Match the vocabulary word with the correct definition.

Mathematics

1 answer:

LekaFEV [45]4 years ago

5 0

Answer:

1) the set of all points in a plane that are at a given distance from a given point in the plane

2)a chord of a circle that contains the center of the circle

3)circles that have equal radii

4)two or more circles that lie in the same plane an have the same center

5)a segment joining the center of a circle to a point of the circle

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As shown in the diagram of the right triangles below, Triangle: ABC ~ Triangle: DEF, AB = 7x, BC = 4, DE = 7, EF = x. What is th

charle [14.2K]

since triangles are similar

4/x = 7x/7

=》 4/x = x

=》x^2 = 4

=》 x = 2

for right triangles a^2 = b^2+c^2

DF^2 = 7^2+2^2 = 53

=》 DF = 7.28

perimeter of DEF = 7 +2+7.28 = 16.28

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3 years ago

pam deposited $6,900 in a savings account with simple interest. Four months later she had earned $23 in interest. What was the i

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Answer:

Step-by-step explanation:

We use the simple interest equation of A=P(1+rt).

A-the total amount with interest earned

P-the initial amount or principal

r-rate

t-time in years

We substitute the values P=6900, A=6923, and t=0.33 since 4 months divided by 12 months is 0.333 years. We then solve for r.

$6923=6900(1+r(0.33))\\6923=6900(1+0.33r)\\\frac{6923}{6900} =\frac{6900(1+0.33r)}{6900} \\1.0033=1+0.33r\\1.0033-1=1-1+0.33r\\0.0033=0.33r$

Our final step is to divide both sides by 0.33.

$\frac{0.0033}{0.33} =\frac{0.33r}{0.33} \\0.01=r$

This is the decimal of the rate. We convert to a percentage by multiplying by 100. 0.01(100)=1%.

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3 years ago

What is the slope of a line parallel to the line whose equation is 6x - y = 1. Fully

NNADVOKAT [17]

So use -a/b and you get 6x as the slope and the parallel line would have the same slope

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3 years ago

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100÷2[500÷5{6 + (21+7-24)}}<br>can any one ????

Advocard [28]

The answer would be 50,000

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3 years ago

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What is negative 9 plus 16/7

jekas [21]

Step-by-step explanation:

-9 + 16/7 = ?

First, find out what 16/7 would make in decimal form, by dividing 16 by 7 (Use a calculator if needed)

16 / 7 = 2.3 (In estimation)

So, now you have ' -9 + 2.3 '

= -6.7

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3 years ago

Read 2 more answers