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2 years ago

Select all the correct answers. Which expressions are equivalent to the given expression?

Mathematics

1 answer:

AnnZ [28]2 years ago

3 0

Answer:

6√7=15.874507866387543=√252

Step-by-step explanation:

hope this is helpful

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Explain how you can use base 10 blocks to find one. 54+2.37

jasenka [17]

So you mean add 54+2.37? Well, I do know that the answer to 53+2.37= 2.90. I hope I helped, even if I only helped by an inch.

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2 years ago

Which of the following is equivalent to sec2θ−1sec2θ for all values of θ for which sec2θ−1sec2θ is defined?

galina1969 [7]

Answer:

$2 sin^2 \theta$

Step-by-step explanation:

According to the scenario, the following information is given:

$= \frac{sec^2 \theta - 1 }{sec^2 \theta}$

$= (\frac{1}{\frac{cos^2\theta}{\frac{1}{cos^2\theta} }} - 1)$

$= 1 - cos^2\theta\\\\= 1 - (1 - 2 sin^2 \theta)\\\\= 2 sin^2 \theta$

Therefore for the given equation, the answer is $2 sin^2 \theta$

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3 years ago

Wei has already saved $1,220 for college. She expects the total cost of her first year to be $9,850, and she expects to receive

Kruka [31]

Answer: she needs to save $6510

Step-by-step explanation:

In the first year, she expects her total cost to be $9,850. Wei has already saved $1,220 for college. This means that the remaining amount that she needs would be

9850 - 1220 = $8630

she expects to receive grants and scholarships that total $2,120. Therefore, the amount of money that she should save to be able to pay for her first year of college would be 8630 - 2120 = $6510

8 0

2 years ago

Read 2 more answers

(7th grade work) which is the best estimate for 0.8% of 503? <br> Choices: <br> 10<br> 4<br> 1

elixir [45]

Answer:

I think it's 4.

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Can someone please help me

Ede4ka [16]

Answer:

27.4 km

Step-by-step explanation:

vertical line- y

17 km/y= tan 54

y= 17/tan 54= 25.2 km

25.2/x= cos 23

x= 25.2/cos 23= 27.4 km

7 0

2 years ago