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2 years ago

1) For what values is the statement true? sin(x+20)°=cos(y−10

Mathematics

1 answer:

iragen [17]2 years ago

5 0

Answer:

1) X =20° ,Y=60°

2) 7/5

3) first is correct

4) 2

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What is the distance on the unit circle between successive fourth roots of StartFraction StartRoot 3 EndRoot Over 2 EndFraction

Tems11 [23]

Answer:

It's not 2pi/3 so my next guess would be pi/3 but im not sure

Step-by-step explanation:

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2 years ago

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Assume a standard deck of 52 cards is being used. Find the possible way 2 black cards can be chose

GREYUIT [131]

We know there are 4 suites the deck can be divided into, and two of the 4 are black. So you divide 2/4, and get 1/2. So the probability that a black card will be chosen is 1/2.

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2 years ago

A random sample of adults showed that of them have shopped at least once on the Internet. What is the (approximate) probability

Anvisha [2.4K]

Answer:

P = number of adults who have shopped at least once on the internet / number sampled adults

Step-by-step explanation:

Step 1

Let X be the number sampled adults

Let Y be the number of adults who have shopped at least once on the internet.

Let P be the probability that a randomly selected adult has shopped on the Internet.

Step 2

P = number of adults who have shopped at least once on the internet / number sampled adults

P = Y/X

An example:

If X is 1000 adults and Y is 200 adults therefore P = 200/1000 = 0.2

One can therefore infer that approximately 0.2 of the population surfs the internet at least once in a week.

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3 years ago

Solve for x: 3 < x + 3 < 6 6 < x < 9 6 > x > 9 0 < x < 3 0 > x > 3

kifflom [539]

Given:

The compound inequality is:

$3$

To find:

The solution for x.

Solution:

We have,

$3$

To solve the inequality, we need to isolate the variable x.

Subtracting 3 from each side, we get

$3-3$

$0$

The solution for x is $0$ . Therefore, the correct option is C.

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3 years ago

I need answer and specific explanation plz...

vitfil [10]

Answer:

The smallest model - bottom right - in the question diagram represents $\sqrt[3]{64}=4$ .

Step-by-step explanation:

Considering the radical expression

$\sqrt[3]{64}$

Lets simply this radical expression first

$\sqrt[3]{64}$

$\mathrm{Factor\:the\:number:\:}\:64=4^3$

$=\sqrt[3]{4^3}$

$\mathrm{Apply\:radical\:rule}:\quad \sqrt[n]{a^n}=a,\:\quad \:a\ge 0$

$\sqrt[3]{4^3}=4$

$=4$

Therefore, $\sqrt[3]{64}=4$

Now, as we can determine that $\sqrt[3]{64}=4$ . So, the smallest model in the question diagram represents $\sqrt[3]{64}=4$ as each face of the cube of the smallest model in the diagram - bottom right - has 4 squares.

Therefore, the smallest model - bottom right - in the question diagram represents $\sqrt[3]{64}=4$ .

Keywords: square cube root, radical expression

Learn more about radical expression from brainly.com/question/13984232

#learnwithBrainly

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3 years ago