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Yuri [45]
3 years ago
15

Calculate the perimeter of this shape 12cm 18cm

Mathematics
2 answers:
EastWind [94]3 years ago
4 0

Answer:

30

Step-by-step explanation:

perimeter = side 1+side 2

12+18=30

svet-max [94.6K]3 years ago
4 0

Answer:

60 cm

Step-by-step explanation:

= (12 x 2) + (18 x 2)

= 24 + 36

= 60

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Leg a is 15. leg b is 8, what is c?<br><br>​
cricket20 [7]

Answer:

a²+b²=c² so you take 15² =225. then you take 8²=64 then you add 225+64=289. Then you find the √289 That equals 17

C=17

4 0
2 years ago
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Need help finding equation
Elden [556K]

Answer:

Step-by-step explanation:

Based on the two graphs I see at the bottom of the photo, you're looking at a quadratic function. The answer you put in is a linear equation.

Quadratic functions follow the form ax^2+bx+c, where a, b, and c can be either positive or negative constants.

The table says that the equation, when graphed, should start at the top, slide to the bottom, and then slide back up to the top. So a must be positive.

c has to be -8 since it's the y-intercept.

So far, our equation is ax^2+bx-8. We'll need to plug in some points in order to work out what a and b are.

Let's use (-2,5) as the first set of points, and (4,14) as the second set.

5=a(-2)^2+b(-2)-8\\14=a(4)^2+b(4)-8\\

Now we have 2 equations with 2 unknowns. Solve for one variable:

5=4a-2b-8\\13+2b=4a\\\frac{13+2b}{4}=a

Now substitute that into the second equation:

14=(\frac{13+2b}{4})(4^2)+4b-8\\14+8=(13+2b)(4)+4b\\22-52=8b+4b\\-30=12b\\-\frac{30}{12}=-\frac{10}{4}=-\frac{5}{2}=b

Now substitute the result into the first equation.

\frac{13+2(-\frac{5}{2})}{4}=a\\\\\frac{13-5}{4}=a\\\\\frac{8}{4}=a\\\\ 2=a

Now substitute our values back into the original equation:

y(x)=2x^2-\frac{5}{2}x-8

Please let me know if this is correct.

8 0
3 years ago
What is the value of x?<br> SUBMIT WORK FOR THIS QUESTION<br> (x + 40)<br> (3x)
Inga [223]

Answer:x=35 because if you add the terms then your equation would be 4x+40=180 because it’s a 180 degree line.

Step-by-step explanation:

5 0
3 years ago
How would i solve this? Thank you
dusya [7]
The answer to this problem is A
4 0
3 years ago
Help I am stuck on this problem
Musya8 [376]

Answer:

16 = 3x

Step-by-step explanation:

The perimeter is found by adding up the 3 sides

P = x+x+x

P =3x

We know the perimeter is 16

16 = 3x

5 0
3 years ago
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