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2 years ago

A) Write down the coordinates of A. b) Plot the point B(7,4) on the grid

Mathematics

2 answers:

Artemon [7]2 years ago

8 0

Answer:

A=(3,8)

Step-by-step explanation:

b) to find the 1st number(x co-ordinate), go along the the horizontal line labelled with numbers and find the number 7.

then go up 4 squares to find the y co-ordinate

Artist 52 [7]2 years ago

6 0

Answer:

Answers below!

Step-by-step explanation:

A) 3, 8

B) find 7 on x and 4 on y and come together to plot

to plot x you go left and right

to plot y you go up and down

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Hellllppppppeee pleaseeee!!!!!!

Mars2501 [29]

Answer:

Scale Factor = 2

Step-by-step explanation:

ABC is your original triangle and A'B'C' is the dilation. You know these are similar triangles so only one side has to be used to find the scale factor. AB has a length of 3 and A'B' has a length of 6 so you know the side lengths of A'B'C' are going to be 2 times the size of triangle ABC side lengths. This gives you a scale factor of 2.

7 0

2 years ago

Simplify and then evaluate the equation<br> when x= 3.<br> -5(x – 5) + 2x = [?]

nadya68 [22]

Answer:

-3x+25

Step-by-step explanation:

3 0

2 years ago

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if the height of the cylinder with a radius of 12 cm and a height of 20 cm has the same volume as a cone with a radius of 8 cm.

Marrrta [24]

Answer:

$\large\boxed{H=135\ cm}$

Step-by-step explanation:

The formula of a volume of a cylinder:

$V=\pi r^2H$

r - radius

H - height

We have the radius r = 12cm and the height H = 20cm. Substitute:

$V=\pi(12^2)(20)=\pi(144)(20)=2880\pi\ cm^3$

The formula of a volume of a cone:

$V=\dfrac{1}{3}\pi r^2H$

r - radius

H - height

We have the radius r = 8cm and the volume V = 2880πcm³. Substitute:

$\dfrac{1}{3}\pi(8^2)H=2880\pi\qquad\text{divide both sides by}\ \pi\\\\\dfrac{1}{3}(64)H=2880\qquad\text{multiply both sides by 3}\\\\64H=8640\qquad\text{divide both sides by 64}\\\\H=135\ cm$

7 0

2 years ago

A haircut cost $15. I left a 20% tip. How much was the haircut including the tip? PLEASE ANSWER WITH WORK

Bas_tet [7]

Answer:

$18

Step-by-step explanation:

15*.2=3

15+3=18

The haircut is $18 with tip included.

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2 years ago

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12 is 25% of what number using a ratio table

Contact [7]

% means 'parts out of 100' so
25%=25/100

is 12 is 25 parts out of 100 of a number
so 12=(25/100)x
25/100 simplifies to 1/4
or if 12=(1/4)x
we multiply both sides by 4 and get
48=1x

5 0

2 years ago