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3 years ago

What is the perimeter of the shape?

Mathematics

2 answers:

ICE Princess25 [194]3 years ago

8 0

20cm due to if it is perimeter then you add the total of all sides so 3+5+5+7=20

Serhud [2]3 years ago

3 0

Answer:

20 cm

Step-by-step explanation:

Assuming that the side lengths you've written are the only side lengths of the shape, meaning it would be a trapezoid, all you do is add them up together.

3 + 5 + 5 + 7 = 20

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Determine the standard form of the equation of the line that passes through (-8, -6) and (-4, 9)

Darya [45]

Answer:

15/4 x-y=-24

Step-by-step explanation:

the standard form is ax+by=c

two points (x1,x2) , (y2,y1)

x1=-8 x2=-6

y1=-4 y2=9

find slope m: y2-y1/x2-x1

m=9-(-6)/-4-(-8)

m=15/4

find b: take any point(-8,-6)

y=mx+b

-6=15/4 (-8)+b

-6=-30+b

b=-6+30

b=24

y=15/4 x+24

standard form: y-15/4x=24

OR : 15/4 x-y=-24

8 0

3 years ago

A population of 40,000 decreases by 3.1% each year. what is the approximate population in 4 years

coldgirl [10]

$\bf \textit{Amount of Population Decay} \\\\ A=Pe^{-rt}\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{initial amount}\dotfill &40000\\ r=rate\to 3.1\%\to \frac{3.1}{100}\dotfill &0.031\\ t=\textit{elapsed time}\dotfill &4\\ \end{cases} \\\\\\ A=4000e^{-0.031(4)}\implies A=40000e^{-0.124}\implies A=\cfrac{4000}{e^{0.124}} \\\\\\ A\approx 35335.194\implies \stackrel{\textit{rounded up}}{A\approx 35335}$

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3 years ago

Use the graph of the logarithmic function f(x) to answer the question.

Bingel [31]

Answer:

(0,-2)

Step-by-step explanation:

7 0

3 years ago

Solve the equation. y + 3 = –y + 9 A.) y=1 B.)y=3 C.)y=6 D.)y=9

Lyrx [107]

Y + 3 = -y + 9

y + y = 9 - 3

2y = 6

y = 6 / 2

y = 3

B.) y=3

6 0

3 years ago

Which of the following would be the most logical first step to solving this

antiseptic1488 [7]

Answer:

Factor {x}^{2}-5x+6x

−5x+6.

(x-3)(x-2)=0(x−3)(x−2)=0

2 Solve for xx.

x=3,2x=3,2

i hope this helps

3 0

3 years ago