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Free_Kalibri [48]

3 years ago

5

Suppose you choose a marble from a bag containing 3 red marbles, 5 white marbles, and 4 blue marbles. You return the first marbl

e to the bag and then choose again. Find P(red and blue).

1 answer:

Liono4ka [1.6K]3 years ago

8 0

The best answer I can give you is 7/12

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Find the value of x. Round to<br> the nearest tenth.

Tatiana [17]

Answer:

80.4

Step-by-step explanation:

tan15=x/300

300tan(15)=80.38

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3 years ago

(3x - 5 - 7x^2) - (-2 + 6x^2 - 5x)

boyakko [2]

Answer:

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Step-by-step explanation:

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A high school football game Jill buys 6 hot dogs and 4 soft drinks for

ryzh [129]

Answer: D

Step-by-step explanation:Lets label hot dogs as 'h' and soft drinks as 's'

6h + 4s = 13 (Equation 1)

3h + 4s = 8.50 (Equation 2)

We can solve by process of elimination.

Subtract equation 1 from equation 2.

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So that means that the hot dog costs $1.50 which is answer choice D.

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3 years ago

Which ordered pair is a reflection of (3, 7) across the x-axis?

Rina8888 [55]

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6 0

4 years ago

Find the sum of this infinite geometric series: 4 - 2.88 + 2.0736- 1.492992+...

kirza4 [7]

Let $r$ be the common ratio between terms. Then

$-2.88=4r\implies r=-0.72$

Now denote the $n$ th partial sum of the series by

$S_n=4-2.88+2.0736-1.492992+\cdots+4(-0.72)^{n-1}+4(-0.72)^n$

Multiply both sides by $-0.72$ , then subtract from the above to get

$S_n-(-0.72S_n)=4-4(-0.72)^{n+1}$
$1.72S_n=4(1-(-0.72)^{n+1})$
$S_n=2.32558(1-(-0.72)^{n+1})$

As $n\to\infty$ , you're left with

$S_\infty=2.32558$

3 0

4 years ago