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2 years ago

4. If f(x) = |2x - 4 find f(-7) a.-18 b. 18 d. 10

Mathematics

1 answer:

bezimeni [28]2 years ago

4 0

Answer:

Answer is a

Step-by-step explanation:

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Calculate the sum of the infinite series

andriy [413]

ANSWER

$S_ \infty = \frac{40}{3}$

EXPLANATION

The given series is

$20-10+5-...$

The first term of the series is,

$a_1=20$

The common ratio of this series is,

$r = \frac{ - 10}{20}$

This simplifies to,

$r = - \frac{1}{2}$

The sum to infinity of this sequence is given by the formula,

$S_ \infty = \frac{a_1}{1-r}$

We substitute the above values into the formula to obtain,

$S_ \infty = \frac{20}{1- - \frac{1}{2} }$

This simplifies to,

$S_ \infty = \frac{20}{1 + \frac{1}{2} }$

We simplify the denominator to get,

$S_ \infty = \frac{20}{ \frac{3}{2} }$

This will finally give us,

$S_ \infty =20 \times \frac{2}{3}$

$S_ \infty = \frac{40}{3}$

The correct answer is A.

5 0

3 years ago

Read 2 more answers

Janie has $180. She spends 50% of her money on a new pair of ice skates. How much does she spend on ice skates?

Zigmanuir [339]

--|- $90 spent. -|--

5 0

3 years ago

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Which of the following values for x and y make the equation 4x+2y+3=19 true?

Aleksandr-060686 [28]

Answer:

x = 3, y = 2

Step-by-step explanation:

Substitute the values of x from each alternative in the previous question, then solve for y. This is depicted below.

A. y = -7, x = 5, 4(5) + 2y + 3 = 19
B. y = 0 and x = 4, 4(4) + 2y + 3 = 19
C. y = 2 and x = 3, 4(3) + 2y + 3 = 1
D. y = 4, x = 2, 4(2) + 2y + 3 = 19

Only the third option has a y value that is comparable to the value in the computations, according to the calculations.

As a result, the letter C is the correct response.

7 0

2 years ago

Please help me thanks please I will give you brainlest

belka [17]

Answer:

Step-by-step explaintion

5 x 12

6 0

2 years ago

line segment eg is partitioned by point f in the ratio 1:1. point e is at e (0, 4), and point f is at (1, 3). what are the coord

damaskus [11]

The coordinates of G (x₂ , y₂) for line segment EG = (2,2).

As given:

Line segment EG

Partitioned point of line segment is F

Coordinates of F (x ,y)=(1,3) and E (x₁ ,y₁)=(0,4)

Let coordinate of G (x₂ , y₂)

Ratio m:n =1:1

(x ,y) ={ ( mx₂ +nx₁ )/ (m +n) , ( my₂ +n y₁ )/ (m +n)

⇒(1,3) = {(1x₂ +1(0) )/2 , 1y₂ +1(4) /2}

⇒x₂ =2, y₂ =2

Therefore, the coordinates of G (x₂ , y₂) for the given line segment is equal to (2,2).

Learn more about line segment here

brainly.com/question/25727583

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6 0

1 year ago