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3 years ago

Which of the following sets of numbers could represent the three sides of a triangle?

Mathematics

1 answer:

kupik [55]3 years ago

6 0

Answer:

B-7,22,28

Step-by-step explanation:

The sum of the smaller numbers must be greater than the larger number, if not then the answer is wrong.

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a cube measuring 1 cm on each side, what is the volume, if the cube was dropped into 28ml of water. what would the new volume be

meriva

Answer:

29 ml

Step-by-step explanation:

Vcube = 1cm×1cm×1cm = 1 cm³

1 cm³ = 1 ml

If this cube is dropped into a 28ml of water the new reading will be 29 ml.

hope this helped :)

5 0

3 years ago

Something times something that equals 7

Anestetic [448]

Well since two solid numbers cant make 7 I would do 3.5 x 7

3 0

3 years ago

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A carousel factory has 1,252 carousel horses. 48 horses are placed on each carousel. How many carousels can the factory build? H

Arte-miy333 [17]

4 carousels will be left over

4 0

3 years ago

Read 2 more answers

Complementary, supplementary, or neither?

aev [14]

Answer:

The angles are supplementary.

Step-by-step explanation:

Angles that add up to 90° are complementary, while angles that add up to 180° are supplementary.

3 0

3 years ago

The accompanying data on x= head circumference z score (a comparison score with peers of the same age - a positive score suggest

djverab [1.8K]

Answer:

$r=0.77$ , $\hat{y}=770.50+39.37x$ and volume of cerebral brey matter for a child whose head circumference Z score at age 12 months was 1.9 is $\hat {y}=920.10$

Step-by-step explanation:

We attached a table below,

$(a)$ We attached a table below,

Therefore ,

correlation coefficient $r=\frac{\frac{1}{18}(21766.7)-(\frac{27.25}{18} )(\frac{13890}{18} ) }{\sqrt{\frac{1}{18} (59.8435)-(\frac{27.25}{18} )^2}\sqrt{\frac{1}{18}(10767400)-(\frac{13890}{18} )^2 } }$

$=\frac{41.04}{53.19}$

$=0.77$

$(b)$ We calculate the least squares equation.

$b_1=r(\frac{\sigma_y}{\sigma_x} )\\ =(0.77)(\frac{\sqrt{\frac{1}{18} (10767400)-(\frac{13890}{18} )^2} }{\sqrt{\frac{1}{18}(59.8435)-(\frac{27.25}{18} )^2 } } )\\ =0.77(\frac{52.15}{1.02} )\\ =0.77(51.13)\\ =39.37$