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4 years ago

HELP ME PLEASE IM HAVING SO MUCH TROUBLE....

Mathematics

1 answer:

zysi [14]4 years ago

5 0

Pretty sure it’s B I could be wrong

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Can yall help me do this

4vir4ik [10]

Formula = 4/3 x pi x r^3

4/3 x 3.14 x 7^3 = 1436.03

answer: a. 1436.03 cubic units

3 0

2 years ago

Read 2 more answers

HELPPPPPPPPPPPPPPPP!!!!!!

timofeeve [1]

Answer:

Step-by-step explanation:

It is a right angle so it will add up to 90 degrees.

This is the equation:

x=90-19-56

x=15

4 0

3 years ago

Read 2 more answers

HELP ME ASAP PLEASE

vfiekz [6]

Answer:

144.44

Step-by-step explanation:

C = 2 x π x r . C = 2 x 3.14 x 23 = 144.44

5 0

3 years ago

I REALLY NEED HELP PLEASE!!

disa [49]

part A)

$\bf \begin{array}{ccllll}
hours(x)&velocity(y)\\
-----&-----\\
1&6\\
3&2
\end{array}\\\\
-------------------------------\\\\$

$\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
&({{ 1}}\quad ,&{{ 6}})\quad 
% (c,d)
&({{ 3}}\quad ,&{{ 2}})
\end{array}
\\\\\\
% slope = m
slope = {{ m}}= \cfrac{rise}{run} \implies 
\cfrac{{{ y_2}}-{{ y_1}}}{{{ x_2}}-{{ x_1}}}\implies \cfrac{2-6}{3-1}\implies \cfrac{-4}{2}\implies -2$

$\bf y-{{ y_1}}={{ m}}(x-{{ x_1}})\implies y-6=-2(x-1)\\
\left. \qquad \right. \uparrow\\
\textit{point-slope form}
\\\\\\
y-6=-2x+2\implies y=-2x+2+6\implies \boxed{y=-2x+8}$

part B)

well, we know y = -2x+8.... so.. what's the runner's velocity after 5hours? well, x = 5, thus y = -2(5) +8 ---> y = -2

to graph it, well, is a LINEar equation, meaning the graph is a LINE, and to graph a line, all you need is two points, and by now, you have more than two.. so graph it away.

7 0

3 years ago

What is thirty two percent of fifty six

mojhsa [17]

Answer: 17.92

Step-by-step explanation:

32% of 56

Change to fraction

32 /100 x 56

Change to decimal

0.32 x 56

= 17.92

5 0

3 years ago