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inessss [21]
3 years ago
7

which of the numbers 28 33 45 57 39 and 36 could be subtracted from 84 without regrouping? please explain

Mathematics
2 answers:
Natali [406]3 years ago
3 0
If i'm not mistaken it would be 33. 

 84
-33
------
51


dolphi86 [110]3 years ago
3 0
28 can be subtracted from 84 with regrouping. I know this because you take the 3 from 33 and subtract it from the 4 from 84 and get 1. Then you get the other 3 from 33 and subtract it from 8 and get 5. So your final answer is 51.
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An animal shelter has 910 of its crates filled with animals.
AnnZ [28]

12/910 which simplifies to 6/455.

Explanation:

Take the amount of crates holding dogs over the total amount of crates

5 0
3 years ago
The slope for 5 and 2
Yuri [45]

\qquad\qquad\huge\underline{{\sf Answer}}♨

As we know, slope (m) is equal to tan θ for a straight line :

\qquad \tt\dashrightarrow \: m = \tan( \theta)

\qquad \tt\dashrightarrow \: m =  \dfrac{5}{2}

So, we can say that it's a positive constant slope

8 0
1 year ago
Given that tan θ ≈ −0.087, where 3 2 π < θ < 2 , π find the values of sin θ and cos θ.
elena-s [515]

Answer:

  • sin θ ≈ -0.08667
  • cos θ ≈ 0.99624

Step-by-step explanation:

Straightforward use of the inverse tangent function of a calculator will tell you θ ≈ -0.08678 radians. This is an angle in the 4th quadrant, where your restriction on θ places it. (To comply with the restriction, you would need to consider the angle value to be 2π-0.08678 radians. The trig values for this angle are the same as the trig values for -0.08678 radians.)

Likewise, straightforward use of the calculator to find the other function values gives ...

  sin(-0.08678 radians) ≈ -0.08667

  cos(-0.08678 radians) ≈ 0.99624

_____

<em>Note on inverse tangent</em>

Depending on the mode setting of your calculator, the arctan or tan⁻¹ function may give you a value in degrees, not radians. That doesn't matter for this problem. sin(arctan(-0.087)) is the same whether the angle is degrees or radians, as long as you don't change the mode in the middle of the computation.

We have shown radians in the above answer because the restriction on the angle is written in terms of radians.

_____

<em>Alternate solution</em>

The relationship between tan and sin and cos in the 4th quadrant is ...

  \cos{\theta}=\dfrac{1}{\sqrt{1+\tan^2{\theta}}}\\\\\sin{\theta}=\dfrac{\tan{\theta}}{\sqrt{1+\tan^2{\theta}}}

That is, the cosine is positive, and the sign of the sine matches that of the tangent.

This more complicated computation gives the same result as above.

4 0
3 years ago
Evaluate 4k2 + 3 when k = 5
lyudmila [28]

Answer:

103

Step-by-step explanation:

Evaluate 4k2 + 3

To evaluate 4k² + 3, when k = 5, which means when you sees k, put 5 in replacement

4k² + 3 = 4(5)² + 3

4(5×5) + 3

4(25) + 3

open the bracket

4 × 25 = 100

∴ 100 + 3 = 103

Please mark me brainliest  

7 0
2 years ago
Read 2 more answers
each paper clip is 3/4 inches long and cost $0.02. exactly enough paper clips are laid end to end to have a total length of 36 i
Vera_Pavlovna [14]
Answer is in the attachment below.

5 0
3 years ago
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