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3 years ago

How old would i be if my birthday is april 20th and i graduate 2022?

Mathematics

1 answer:

Lyrx [107]3 years ago

3 0

I would say about 13-14 years old

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Evaluate 7k+3.4j−(2k+3.9) when k=4.1 and j=1.7

Mandarinka [93]

Answer:

42.47?

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

(All problems are connected with eachother.) Directions: Mr. Clark's backyard vegetable garden is circular, centered at point A,

jonny [76]

Check the picture below. part 1 and 2 are there.

part 3)

$\bf \textit{arc's length}\\\\
s=\cfrac{r\theta \pi }{180}\implies \cfrac{180s}{r\pi }=\theta \qquad 
\begin{cases}
\theta =\textit{angle in degrees}\\
r=radius\\
----------\\
s=12.2\\
r=\sqrt{\frac{315}{\pi }}
\end{cases}
\\\\\\
\cfrac{180\cdot 12.2}{\pi \sqrt{\frac{315}{\pi }}}=\theta \implies 69.8075^o\approx \theta \implies 70^o\approx\theta$

$\bf \textit{area of a sector of a circle}\\\\
A=\cfrac{\theta \pi r^2}{360}\quad 
\begin{cases}
r=\sqrt{\frac{315}{\pi }}\approx 10\\
\theta \approx 70
\end{cases}\implies A=\cfrac{70\cdot \pi \cdot 10^2}{360}$

4 0

3 years ago

Help me factorise these please :)

diamong [38]

Answer:

Tell me if i'm wrong and stuff

3 0

3 years ago

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Solve the system of equation by elimination. 27= -3y + x 2 y=10 - 4x

rodikova [14]

Answer:

x=6 y=-7

Step-by-step explanation:

rearrange the equation

3y=x-27 eq 1

2y=-4x+10 eq 2

Multiply eq 1 by 2, and eq 2 by 3

6y=2x-54

6y=-12x+30 subtract the two eq's

0=14x-84

84=14x

x=84÷14

x=6

solving for y sub. x either eq 1 or 2

3y=x-27

3y=6-27

3y=-21

y=-21÷3

y=-7

8 0

3 years ago

Y=-x-6 with slope graph Please help me answer this

andrey2020 [161]

Answer: the slope of the graph is -1

Step-by-step explanation: because x has a coefficient of negative 1 but if you wanted to graph this line, you have to be careful since you go down 1 unit and right 1unit. The line is descending since it has a negative slope so technically the slope is -1/1 but we can just say it’s -1

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3 years ago