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Tcecarenko [31]
3 years ago
12

Which two square roots are sed to esimate √42?

Mathematics
1 answer:
inysia [295]3 years ago
7 0

The answer is c . I hope I helped


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The football coach wants to estimate the percentage of people from the town who will attend the next game. To estimate this perc
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He should survey the people who most often attend the game

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3 years ago
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1 - 3/10 Write the answer as a fraction​
IgorLugansk [536]

Answer:

7/10

Step-by-step explanation:

Get a common denominator

1 - 3/10

10/10 - 3/10

7/10

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A box has dimensions of 4.0 cm by 8.5 cm by 2.0 cm. The volume of the box in mL is:
telo118 [61]
Answer: 68 mL

Step 1: Write volume formula

The formula for volume is often abbreviated into V=l×w×h. This stands for volume= length×width×height.

Step 2: Substitute numbers for answer in cm

To get the answer in cm, simply substitute the numbers into the equation. Then, you may simply multiple them to solve.
V=4.0 cm×8.5 cm×2.0 cm
V= 68 cm

Step 3: Add cubed symbol

Since this is referring to volume, you will need to add the cubed symbol to the end of your answer. This will appear as a number 3 above the cm on the right side.

Step 4: Convert to mL

This is a simple step once you understand the formula to convert. Luckily for us, cm cubed (cm3)= 1 mL. Because of this, the answer will remain as 68 mL


Hope this is right and it helps you!

7 0
3 years ago
1. Lucia wants to start a rock band, so she is taking guitar lessons. She pays $18.50 per hour for lessons. If she has saved $20
pishuonlain [190]
Lucia can afford 11 hours of lessons

Second one is 2.7
7 0
3 years ago
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Evaluate the following trigonometric expression, using the principal value for the cosine
Maslowich

Given:

The expression is

\tan (\cos ^{-1}(-\dfrac{1}{2}))

To find:

The value of given expression.

Solution:

We have,

\tan (\cos ^{-1}(-\dfrac{1}{2}))

=\tan (\pi-\cos^{-1}(\dfrac{1}{2}))          [\because \cos^{-1}(-\theta)=\pi -\cos^{-1}\theta]

=\tan (\pi-\cos^{-1}(\cos \dfrac{\pi}{3}))      [\because \cos \dfrac{\pi}{3}=\dfrac{1}{2}]

=\tan (\pi-\dfrac{\pi}{3})

=-\tan (\dfrac{\pi}{3})                 [\because \tan(\pi-\theta)=-\tan \theta]

=-\sqrt{3}         [\because \tan \dfrac{\pi}{3}=\sqrt{3}]

Therefore, the value of given expression is -\sqrt{3}.

5 0
3 years ago
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