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3 years ago

The equation sinx = (sqrt2)/2 is an identity. True or False?

Mathematics

2 answers:

Aleks [24]3 years ago

8 0

It's only true for specific x values but not all x values. The final answer is FALSE.

STatiana [176]3 years ago

8 0

Answer:

FALSE

Step-by-step explanation:

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HELP PLEASE thank you

prohojiy [21]

Answer:

3 books

Step-by-step explanation:

She can carry 3 books in her backpack, this is because 1lb+3lb= 4

and if one book = 2lb each. Then 10-4 =6

so she has 6lb space remaning.

so 6lb divided by 2 = 3

8 0

2 years ago

Help me plsssss I have more but this one first

Alexeev081 [22]

Answer:

$1205.76 \: \: {units}^{3}$

Step-by-step explanation:

$v = \pi {r}^{2} h \\ = 3.14 \times {8}^{2} \times 6 \\ = 3.14 \times 64 \times 6 \\ = 1205.76 \: \: {units}^{3}$

Hope this helps you

Can I have the brainliest please?

4 0

2 years ago

Read 2 more answers

A baseball player has a batting average of 0.260. Suppose that you observe successive at-bats of the player and note for each at

Georgia [21]

Answer: Our required probability is 0.278.

Step-by-step explanation:

Since we have given that

Probability that a player has a batting average = 0.260

Probability of success = 0.260

Probability of failure = 1-0.260 = 0.74

Number of times at bat = 4

Probability that the player will get two or more hits in his next four times at bat is given by

$P(X\geq 2)=P(X=2)+P(X=3)+P(X=4)\\\\P(X\geq 2)=^4C_2(0.26)^2(0.74)^2+^4C_3(0.26)^3(0.74+^4C_4(0.26)^4\\\\P(X\geq 2)=0.278$

Hence, our required probability is 0.278.

3 0

3 years ago

4 tens 13 ones equals

Rasek [7]

Answer:

4 tens=40

13 ones= 13

if we add its 53

6 0

2 years ago

Apolline is mowing lawns for a summer job. For every mowing job, she charges an initial fee plus a constant fee for each hour of

OLEGan [10]

Answer:

Base Fee = $7

Extra charges = $7

Step-by-step explanation:

Represent the base charge with x and the additiional charges with y.

For the 5 hours job, we have:

$42 = x + 5y$

For the 3 hour job

$28 = x + 3y$

Solving for x and y;

$42 = x + 5y$

$28 = x + 3y$

Subtract the second equation from the first

$42 - 28 = x - x + 5y - 3y$

$14 = 2y$

Solve for y

$y = 14/2$

$y = 7$

Substitute 7 for y n the first equation

$42 = x + 5y$

$42 = x + 5 * 7$

$42 = x + 35$

$x = 42 - 35$

$x = 7$

4 0

2 years ago