Can someone help me with two and three please

Mathematics

1 answer:

joja [24]3 years ago

3 0

2) The answer is all squares are rectangles.

3) Not all parallelograms are rectangles.

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Anybody pls solve this question and explanation btw.

kondaur [170]

Answer:

$Vol=883.6875\,\, cm^3\\$

Step-by-step explanation:

Recall that the volume of a whole sphere is given by the formula:

$Vol_{sphere}=\frac{4}{3} \pi\,R^3$

then, the volume of a semi-sphere would be half of the formula above:

$Vol=\frac{2}{3}\, \pi\,R^3$

Now, the radius R is given by half of the semi-sphere diameter: 15/2 = 7.5 cm.

which makes our calculation:

$Vol=\frac{2}{3}\, \pi\,R^3=\frac{2}{3}\, \pi\,(7.5\,cm)^3=883.6875\,\, cm^3\\$

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3 years ago

What is the slope-intercept form equation of the line that passes through (5,7) and (8,22)

JulsSmile [24]

$\bf (\stackrel{x_1}{5}~,~\stackrel{y_1}{7})\qquad(\stackrel{x_2}{8}~,~\stackrel{y_2}{22})\\\\\\ slope = m\implies\cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{22-7}{8-5}\implies \cfrac{15}{3}\implies 5\\\\\\ \begin{array}{|c|ll}\cline{1-1}\textit{point-slope form}\\\cline{1-1}\\y-y_1=m(x-x_1)\\\\\cline{1-1}\end{array}\implies y-7=5(x-5)\\\\\\y-7=5x-25\implies y=5x-18$

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3 years ago

Jordan is playing a video game. For every 35 stars she collects, she gets 4,000 points. Her record is 86,000 points. Which of th

Mariana [72]

E.
Fractions are just division.
In order for her to find the number of stars she needs to divide to find out how many she needs.

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3 years ago

Read 2 more answers

To which subsets of the real numbers does the number 82 belong?

larisa86 [58]

We know that
82 is an integer, a whole number, a natural number, and a rational number (since 82 = 82/1)

So
82 belongs to the set of integers, set of whole numbers, set of natural numbers, and the set of rational numbers

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4 years ago

B. 80 = 30 = Your answer

Blababa [14]

80-30=50 your answer would be 50

4 0

3 years ago