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2 years ago

9

Find the area of a polygon and show step by step explanation pls

1 answer:

AysviL [449]2 years ago

4 0

Answer:

156

Step-by-step explanation:

6×12=72

7×12=84

72+84=156

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Becky is 7 year older than half of Bryan's age. If Bryan is 36 how old is becky ?

Tanya [424]

Answer: Im going to guess 25

Step-by-step explanation: bryan is 36 half of 36 is 18 and becky is 7 years older than 18 which half so you would do 18+7=25 there is your answer.

I THINK DONT QUOTE ME ON THAT ANSWER

8 0

3 years ago

Which of the equations below could be the equation of this parabola?

nirvana33 [79]

Answer:

$y=-4x^2$ is the equation of this parabola.

Step-by-step explanation:

Let us consider the equation

$y=-4x^2$

$\mathrm{Domain\:of\:}\:-4x^2\::\quad \begin{bmatrix}\mathrm{Solution:}\:&\:-\infty \:$

$\mathrm{Range\:of\:}-4x^2:\quad \begin{bmatrix}\mathrm{Solution:}\:&\:f\left(x\right)\le \:0\:\\ \:\mathrm{Interval\:Notation:}&\:(-\infty \:,\:0]\end{bmatrix}$

$\mathrm{Axis\:interception\:points\:of}\:-4x^2:\quad \mathrm{X\:Intercepts}:\:\left(0,\:0\right),\:\mathrm{Y\:Intercepts}:\:\left(0,\:0\right)$

As

$\mathrm{The\:vertex\:of\:an\:up-down\:facing\:parabola\:of\:the\:form}\:y=a\left(x-m\right)\left(x-n\right)$

$\mathrm{is\:the\:average\:of\:the\:zeros}\:x_v=\frac{m+n}{2}$

$y=-4x^2$

$\mathrm{The\:parabola\:params\:are:}$

$a=-4,\:m=0,\:n=0$

$x_v=\frac{m+n}{2}$

$x_v=\frac{0+0}{2}$

$x_v=0$

$\mathrm{Plug\:in}\:\:x_v=0\:\mathrm{to\:find\:the}\:y_v\:\mathrm{value}$

$y_v=-4\cdot \:0^2$

$y_v=0$

Therefore, the parabola vertex is

$\left(0,\:0\right)$

$\mathrm{If}\:a$

$\mathrm{If}\:a>0,\:\mathrm{then\:the\:vertex\:is\:a\:minimum\:value}$

$a=-4$

$\mathrm{Maximum}\space\left(0,\:0\right)$

so,

$\mathrm{Vertex\:of}\:-4x^2:\quad \mathrm{Maximum}\space\left(0,\:0\right)$

Therefore, $y=-4x^2$ is the equation of this parabola. The graph is also attached.

7 0

3 years ago

What is 3/2 in a mixed number

antoniya [11.8K]

Bonjour ,

3/2 = 2/2 + 1/2
3/2 = 1 + 1/2
3/2 = 1 $\frac{1}{2}$

7 0

2 years ago

Read 2 more answers

HELP! 9 is what percent of 100 (need to show how I got my answer)

exis [7]

Answer:

9%

Step-by-step explanation:

We can start by changing this number to a fraction.

$\frac{9}{100}$

We know that 100 is a whole percentage

Therfore, we would get 9%

6 0

2 years ago

Read 2 more answers

Excuse me can you help me to resolve this (×+5) (4x-3)=0

GuDViN [60]

Answer: x = 3/4 x = -5

Step-by-step explanation:

x+5=0

x=-5

4x-3=0

Add three to both sides

4x = 3

x=3/4

6 0

3 years ago