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3 years ago

Hey I could use some help with this asap. Thank you. Will be marked.

Mathematics

2 answers:

tensa zangetsu [6.8K]3 years ago

8 0

Answer:

top left

Step-by-step explanation:

2.5=2 1/2=5/2

2 over 5 up

top left

pshichka [43]3 years ago

3 0

Answer:

Graph 1

Step-by-step explanation:

Because upon substituting (2,5), a point on the line, in the equation.

=> y = 2.5x

=> 5 = 2.5(2)

=> 5 = 5

It is the correct graph.

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Joanne has a cylindrical, above ground pool. the depth (height) of the pool is 1/2 of its radius, and the volume is 1570 cubic f

scoundrel [369]

Answer:

$\sqrt[3]{3140^2\pi}\approx 146.41\ ft^2$

Step-by-step explanation:

The volume of the cylinder is

$V_{cylinder}=\pi r^2\cdot H,$

where r is the base radius and H is the height.

Since $H=\dfrac{1}{2}r$ and V=1570 cubic feet, then

$1570=\pi r^2\cdot \dfrac{r}{2},\\ \\1570=\dfrac{\pi r^3}{2},\\ \\r^3=\dfrac{3140}{\pi},\\ \\r=\sqrt[3]{\dfrac{3140}{\pi}}\ ft.$

The area of its bottom floor is

$A_{floor}=\pi r^2=\pi\cdot \left(\sqrt[3]{\dfrac{3140}{\pi}}\right)^2= \sqrt[3]{3140^2\pi}\approx 146.41\ ft^2.$

6 0

3 years ago

The coordinates of the vertices of parallelogram RMBS are R(–4, 5), M(1, 4), B(2, –1), and S(–3, 0). Using the diagonals, prove

REY [17]

To prove a rhombus you need to show that the sides are congruent and the diagonals are perpendicular.

Sides:

$d_{RM}=\sqrt{(-4-1)^2+(5-4)^2}$

$=\sqrt{(-5)^2+(1)^2}$

$=\sqrt{25+1}$

$=\sqrt{26}$

$d_{MB}=\sqrt{(1-2)^2+(4+1)^2}$

$=\sqrt{(-1)^2+(15)^2}$

$=\sqrt{1+25}$

$=\sqrt{26}$

$d_{BS}=\sqrt{(2+3)^2+(-1-0)^2}$

$=\sqrt{(5)^2+(-1)^2}$

$=\sqrt{25+1}$

$=\sqrt{26}$

$d_{SR}=\sqrt{(-3+4)^2+(0-5)^2}$

$=\sqrt{(1)^2+(-5)^2}$

$=\sqrt{1+25}$

$=\sqrt{26}$

$\overline{RM}$ ≅ $\overline{MB}$ ≅ $\overline{BS}$ ≅ $\overline{SR}$

Diagonals:

Use the slope formula: $m=\dfrac{y_2-y_1}{x_2-x_1}$

$m_{RB}=\dfrac{5+1}{-4-2}$

$=\dfrac{6}{-6}$

= -1

$m_{MS}=\dfrac{4-0}{1+3}$

$=\dfrac{4}{4}$

= 1

Slopes are opposite reciprocals so they are perpendicular.

***************************************************************************

All of the sides are congruent and the diagonals are perpendicular so RMBS is a rhombus.

4 0

4 years ago

if j is the number of integers between 1 and 500 that are divisible by 9 and k is the number of integers between 1 and 500 that

Morgarella [4.7K]

Answer:

126

Step-by-step explanation:

The number of numbers divisible by 9 is ...

j = floor(500/9) = 55

The number of numbers divisible by 7 is ...

k = floor(500/7) = 71

Then the total (j+k) is ...

j +k = 55 +71 = 126

3 0

4 years ago

Pls pls help, circle math problem

Snowcat [4.5K]

Answer:

Step-by-step explanation:

5 0

3 years ago

You can perform 4 push-ups in 24 seconds. Write an equation that represents the relationship between time x and the number of pu

Yuki888 [10]

Y= 1/6x is the answer because 4/24 is 1/6

5 0

3 years ago