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3 years ago

35 POINTS!!!Questions 14-20 please help!

Mathematics

1 answer:

mr_godi [17]3 years ago

3 0

14. sometimes, you can have a 45-45-90 or 60-30-90 triangle (degrees)
sometimes true
15. always
16. never, paralellogram has 2 pairs of paralell sides, trapezoid has 1
17.always
18. sometimes
19. always
20. always

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Furkat [3]

Answer:

not a function

Step-by-step explanation:

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3 years ago

Mary invests £12000 into a savings account. The account pays 1.5% compound interest per year

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Mary will earn $1800 of interest each year

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3 years ago

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Mario's car cost $15,999. Each year the car's value decreases by $1,550. This relationship is described by the equation V = 15,9

dedylja [7]

The value of Mario's car after 5 years is $8,249.

<h3>What is the value of the car after 5 years?</h3>

Deprecation is when the value of an asset declines with the passage of time as a result of wear and tear.

V = 15,999 − 1,550t

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2 years ago

How do i write this ....... 25% of what number w is 9? The Percent Proportion

wel

36/x=100/25
(36/x)*x=(100/25)*x 
36=4*x 
36/4=x 
9=x 
x=9

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4 years ago

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The expression, involving exponents , to represent the shaded area, in square inches, diagram. Then use that expression to calcu

mart [117]

Answer:

The shaded area is $23\ in^{2}$

Step-by-step explanation:

we know that

The shaded area is equal to the area of the large square minus the area of the two smaller squares

$A=6^{2} -(3^{2} +2^{2})\\ \\ A=(2*3)^{2} -(3^{2} +2^{2})\\ \\A=(2^{2})(3^{2}) -(3^{2} +2^{2})$

Calculate the shaded area

Remember that

$3^{2}=9\\ 2^{2}=4$

substitute

$A=(4)(9) -(9 +4)\\ \\A=36-13\\ \\A=23\ in^{2}$

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3 years ago