<img src="https://tex.z-dn.net/?f=10%20%5Cdiv%20%20%5Cfrac%7B2%7D%7B3%7D%20" id="TexFormula1" title="10 \div \frac{2}{3} " alt=

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dem82 [27]

3 years ago

"10 \div \frac{2}{3} " align="absmiddle" class="latex-formula">

Mathematics

1 answer:

12345 [234]3 years ago

4 0

10 * 3/2= 30/2= 15

the answer to the question

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Find f(−2) given that f(x)=2x2−3x+7.

Sedaia [141]

Answer:

21.

Step-by-step explanation:

f(x) = 2x^2 - 3x + 7.

When x = -2,

f(-2) = 2(-2)^2 - 3(-2) + 7

= 2(4) - (-6) + 7

= 8 + 6 + 7

= 21.

3 0

3 years ago

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Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with

larisa86 [58]

Based on the mean, standard deviation, and the graph, the indicated IQ score would be 115.

<h3>What is the indicated IQ score?</h3>

First, find the z value:

P(Z<z) = 1 - tail value

= 1 - 0.1587

= 0.8413

According to the z-value, this gives a value of:

z = 1

The indicated IQ score is:

= mean + z value z standard deviation

= 100 + 1 x 15

= 115

Find out more on normal distributions at brainly.com/question/4079902

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5 0

2 years ago

If you choose a card at random from a well shuffled deck of 52 cards, what is the probability that the card chosen is not a hear

Vinvika [58]

Sample space ={13 H + 13 D + 13 S + 13 C} = 52 cards

P(getting one heart) = 13/52 = 1/4
P( getting NO heart) = 1-1/4 = 3/4 = 0.75

4 0

3 years ago

olga nikolaevna [1]

Answer:5

Step-by-step explanation:>

Which exponential function is represented by the

graph?

8Hold on, our servers are swamped. Wait for your answer to fully load.

o f(x) = 2( 3 )

O f(x) = {(2Y

o f(x) = {(

(1.1

61,0.25) 17

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Of(x) = 2(2)

-5 4 3 2 1

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6 0

3 years ago

Consider the expression 2√3 cos(x)csc(x)+4cos(x)-3csc(x)-2 √ 3 This expression can be represented as the product of the factors.

Alla [95]

Answer with explanation:

The given expression is:

$2 \sqrt{3}\cos x * \csc x+4 \cos x-3 \csc x-2\sqrt{3}\\\\=2 \cos x*(\sqrt{3}*\csc x+2)-\sqrt{3}*(\sqrt{3}*\csc x+2)\\\\\rightarrow (2\cos x -\sqrt{3})*(\sqrt{3}*\csc x+2)\\\\\rightarrow (2\cos x -\sqrt{3})*(\sqrt{3}*\csc x+2)=0\\\\(2\cos x -\sqrt{3})=0 \wedge (\sqrt{3}*\csc x+2)=0$

$\cos x=\frac{\sqrt{3}}{2} \wedge \csc x=\frac{-2}{\sqrt{3}}\\\\x=\frac{\pi}{6},2\pi-\frac{\pi}{6}\\\\x=\frac{\pi}{6},\frac{11\pi}{6} \wedge x=\pi+\frac{\pi}{3} ,2\pi-\frac{\pi}{3}\\\\x=\frac{4\pi}{3},\frac{5\pi}{3}\\\\x={\frac{\pi}{6},\frac{11\pi}{6},\frac{4\pi}{3},\frac{5\pi}{3}}$

Option C

8 0

3 years ago