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stira [4]
3 years ago
8

Work out the surface area

Mathematics
1 answer:
Fofino [41]3 years ago
8 0

Answer:

189

Step-by-step explanation:

6 imes 4.5divide2

13.5

13.5

67.5

54

40.5

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I need help with number 13
nikklg [1K]

The slope-intercept form:

y=mx+b

m - slope

b - y-intercept → (0, b)

We have the point (0, 5). Therefore b = 5.

We have: y = mx + 5

Other point (3, 2). Substitute the coordinates of the point to the equation of the line:

2=3m+5     <em>subtract 5 from both sides</em>

-3=3m      <em>divide both sides by 3</em>

-1=m\to m=-1

<h3>Answer: f(x) = -1x + 5 = -x + 5</h3>
3 0
3 years ago
Why every one should learn maths in life
krek1111 [17]
It will help with taxes and construction and paying things, etc.
6 0
3 years ago
Read 2 more answers
Mr. Haley is leaning a ladder against the side of his house to repair the roof.
Ludmilka [50]

Answer:

20 feet

Step-by-step explanation:

Remember the Pythagorean theorem,

x^2 + y^2 = n^2

in this case

x= 16

y = 12

so substitute back into the equation

16^2 + 12^2 = n^2

256 + 144 = n^2

400 = n^2

sqrt ( 400) = n

20 = n

8 0
3 years ago
Pentagon PQRST is drawn on a coordinate plane below. what rule best represents a dilation to create pentagon PQRST with a scale
otez555 [7]

Answer: (x,y) \to (\dfrac12 x, \dfrac12 y)

Step-by-step explanation:

  • Dilation is a transformation, in which the size of the image gets changed but not shape.

The rule of dilation with scale factor k and wither origin as center of dilation :

(x,y) → (kx, ky)

Here , k= \dfrac12 , center of dilation = Origin

Then, the rule best represents a dilation to create pentagon PQRST will be :

(x,y) \to (\dfrac12 x, \dfrac12 y)

5 0
2 years ago
What is the average distance form the mean of the numbers: 10,8,5,12,20
algol13

Answer: 11

Step-by-step explanation:

Add all the numbers, then divide by how many numbers there are which is 5.

Basically how you get your average

5 0
3 years ago
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