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3 years ago

ABCD is a rectangle. Angle D = 3x + 20 + 7x - 3x. Solve for x

Mathematics

1 answer:

Elodia [21]3 years ago

4 0

Answer:

angle D equal to 3 X + 20 + 7 x minus 3 x

=90 degree equal to x minus 3 X + 20

7 X equal to 70 X equal to 10

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Let f(x) = 5x +7 and g(x) = x-1 . Find f(g(x))

Bogdan [553]

Answer:

f(g(x))=5×(x-1)+7=5x-2

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4 years ago

Reese deposited $7500 for two years into a money market account. At the end of two years, she earned $1200 interest. What rate o

icang [17]

Answer:

She deposited $7500. So it is the principal.

At the end of years, she had total of $8700.

So the total amount is $8700 and the time period is 2 years.

Interest = Total amount - principal = $8700 - $7500 = $1200

We need the rate of interest.

we know that Interest = PTR/100

⇒1200 = 7500*2*R/100

⇒R = 1200*100/7500*2

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Rate of interest is 8%

Step-by-step explanation:

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3 years ago

Find the 5th term of the geometric progression of the following values 1,2,4 and 8

creativ13 [48]

Answer:

Hello,

Step-by-step explanation:

$2^{0} = 1$

$2^{1} = 2$

$2^{2} = 4$

$2^{3} = 8$

$2^{4} = 16$

2 x 1 = 2

2 x 2 = 4

2 x 4 = 8

2 x 8 = 16

2/1 = 4/2 = 8/4 = 16/8 = 2

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3 years ago

Read 2 more answers

What is (x+7)(x-4) simplified

fomenos

(x + 7) (x - 4)

First, apply the FOIL method (a + b) (c + d) = ac + ad + bc + bd / Your problem should look like: $x^{2}$ - 4x + 7x - 28
Second, gather the like terms. / Your problem should look like: $x^{2}$ + (-4x + 7x) - 28
Third, simplify. / Your problem should look like: $x^{2}$ + 3x - 28

Answer: $x^{2}$ + 3x - 28

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3 years ago

Read 2 more answers

Which integer is closest to √55 ?

julsineya [31]

Answer:

when you simplify √55

you get

7.41619848.....

the integer closest to 7.41619848... is 7

So the answer is 7

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3 years ago