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MrRa [10]
2 years ago
13

Need help on this please

Mathematics
2 answers:
alexandr402 [8]2 years ago
7 0

Answer:

5.7

Step-by-step explanation:

7^2- 4^2= 33

\sqrt{33}= 5.7

sweet-ann [11.9K]2 years ago
5 0
5.7 is the main answer which is correct
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Find 5 rational numbers between -3 and -4
allsm [11]

Answer:

-3.2, -3.4, -3.6, -3.8, -3.9

Step-by-step explanation:

<em>Hey there!</em>

<em />

Well rational numbers can be a decimal as long as it can be turned into a fraction, meaning 3.5 is a rational number.

So rational numbers between -3 and -4 are,

-3.2, -3.4, -3.6, -3.8, -3.9

<em>Hope this helps :)</em>

6 0
3 years ago
Read 2 more answers
Write an equality that represents eight less that three times a number is more than 22​
leonid [27]

Answer:

3x - 8 > 22

Step-by-step explanation:

" eight less" means to subract 8 form something.  If you had 10 apples and I took some so now you had 8 less apples, you'd have 10 - 8 = 2 apples

"three times a number" means 3x.  3 times some number.

The expression 3x - 8 means "8 less than 3 times a number"

"is" is math is a statement of equality, either an equals sign or an inequality needs to go here.

Our inequality is

3x - 8 > 22        

3 0
3 years ago
Answer this for points and brainilest (work must be included)
marin [14]

Answer:

4

Step-by-step explanation:

4b + 5 = 1 + 5b

4 = 1b

4 = b

4 0
2 years ago
Find the value of cos 28°​cos 62°​– sin 28°​sin 62°​
Romashka [77]
<h2>Answer:</h2>

cos 28°​cos 62°​– sin 28°​sin 62°​ = 0

<h2>Step-by-step explanation:</h2>

From one of the trigonometric identities stated as follows;

<em>cos(A+B) = cosAcosB - sinAsinB             -----------------(i)</em>

We can apply such identity to solve the given expression.

<em>Given:</em>

cos 28°​cos 62°​– sin 28°​sin 62°​

<em>Comparing the given expression with the right hand side of equation (i), we see that;</em>

A = 28°

B = 62°

<em>∴ Substitute these values into equation (i) to have;</em>

<em>⇒ cos(28°+62°) = cos28°cos62° - sin28°sin62°</em>

<em />

<em>Solve the left hand side.</em>

<em>⇒ cos(90°) = cos28°cos62° - sin28°sin62°</em>

⇒ 0 = <em>cos28°cos62° - sin28°sin62°     (since cos 90° = 0)</em>

<em />

<em>Therefore, </em>

<em>cos28°cos62° - sin28°sin62° = 0</em>

<em />

<em />

8 0
2 years ago
If I have 1/2 pound of trail mix to split between 5 people how much will each get?
monitta
You would each get 1/10 of a pound of trail mix
7 0
3 years ago
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