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3 years ago

Find x. (4x + 16) (2x + 34) A. X = 9 B. X= 52 C. X = 21.7 D. X = 25

Mathematics

2 answers:

MAVERICK [17]3 years ago

6 0

I think the answer would be x=9:)

sergey [27]3 years ago

5 0

Answer:

A. x=9

Step-by-step explanation:

4x+16=2x+34

-2x -2x

2x+16=34

-16 -16

2x=18

÷2 ÷2

x=9

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Marat540 [252]

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2 years ago

The bill for your dinner is $91. You leave a $15.47 tip. What is the percent of tip?

mixas84 [53]

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2 years ago

Find the first term of the arithmetic sequence in which a38= -5 and the common difference is -2.9

mestny [16]

Answer:

102.3

Step-by-step explanation:

a_38 = -5

difference d= -2.9

We use general formula

$a_n = a_1 + (n-1)d$

WE make the formula for a_38 th term

Plug in 38 for n

$a_{38} = a_1 + (38-1)d$

Now plug in -2.9 for d and -5 for a_38

$-5 = a_1 + (38-1)(-2.9)$

$-5 = a_1 - 107.3$

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option A is correct

3 0

2 years ago

Read 2 more answers

What is the length of the major axis of the conic section shown below?

sveticcg [70]

$\dfrac{(x-2)^2}{49}+\dfrac{(y+5)^2}{36}=1$

The equation of a elipse:

$\dfrac{x^2}{a^2}+\dfrac{y^2}{b^2}=1$

The length of the major axis is equal 2a if a > b or 2b if b > a.

We have

$a^2=49\to a=\sqrt{49}=7\\\\b^2=36\to b=\sqrt{36}=6\\\\a > b$

therefore the length of the major axis is equal 2 · 7 = 14.

7 0

3 years ago

Help me solve this questions with steps please

Flauer [41]

Answer:

Step-by-step explanation:

Since the triangle is right use the tangent ratio to find x

tan22° = $\frac{opposite}{adjacent}$ = $\frac{203}{x}$

Multiply both sides by x

x × tan22° = 203 ( divide both sides by tan22° )

x = $\frac{203}{tan22}$ ≈ 502.5 m → B

7 0

3 years ago