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3 years ago

I need to know what 8(ii) because I don’t know the method

Mathematics

1 answer:

Irina18 [472]3 years ago

6 0

Notice y° and y° and 50°, are all three angles in a flat-line, namely "linear angles", and since a flat-line is always 180°.

$\bf y+y+50=180\implies 2y=180-50\implies 2y=130
\\\\\\
y=\cfrac{130}{2}\implies y=65$

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Ervin sells vintage cars. Every three months, he manages to sell 13 cars. Assuming he sells cars at a constant rate, what is the

nalin [4]

Answer:

$m=4\frac{1}{3}$

Step-by-step explanation:

the equation to this is

$y=4\frac{1}{3}x$

and slop-intercept form is

$y=mx+b$

with m being the slope,

so,

$m=4\frac{1}{3}$

7 0

3 years ago

Read 2 more answers

Point H is between G and I. If HG = 8x + 7, HI = 3x - 2, and GI = 38, what would be the length of GH ?

AVprozaik [17]

Answer:

let's see what to do...

Step-by-step explanation:

H is between G and I.

G I = G H + H I

38 = 8 x + 7 + 3x - 2

38 = 11 x + 5

subtract the sides of equation minus 5

38 - 5 = 11 x + 5 - 5

33 = 11 x

divided the sides of equation by 11

33 ÷ 11 = 11 x ÷ 11

3 = x

So the lenght of (G H) is :

8 x + 7 -----¢ 8 (3) + 7 = 24 + 7 = 31

And we're done.

Thanks for watching buddy good luck.

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8 0

3 years ago

Help me pleaseeeeeeeeee

ankoles [38]

Answer:

The diameter is related because it helps find the circumference.

5 0

3 years ago

Area and perimeter of geometric functions

SCORPION-xisa [38]

Answer:

C. 60

Step-by-step explanation:

From triangle ADB,

$|AD|^2+|BD|^2=|AB|^2$

$|AD|^2+16^2=20^2$

$|AD|^2=20^2-16^2$

$|AD|^2=400-256$

$|AD|^2=144$

$|AD|=\sqrt{144}$

$|AD|=12$

From triangle ADC,

$|CD|^2+12^2=15^2$

$|CD|^2+144=225$

$|CD|^2=225-144$

$|CD|^2=81$

$|CD|=9$

The perimeter is the distance around the figure.

The perimeter

$=15+20+16+9$

$=60$

8 0

3 years ago

Read 2 more answers

How do I make the equation in slope intercept form for No. 4?

dezoksy [38]

Since the slope and the y-intercept for the equation of y = mx + b doesn't exist, you don't need to include it.

y = mx + b

Without the m and b, which are the slope and y-intercept, you are left with x.

Then, you need to figure out whether the line is horizontal, or vertical.

If the line is vertical, you keep the x, and find out the value x is on for every point of y.

If the line is horizontal, you keep the y, and find out the value y is on for every point of x.

Since the line is vertical, we can use x = ?

The line is always at x=2, no matter what the y-value is, so the final equation would be x=2.

<em>I hope this helped you! :)</em>

7 0

2 years ago

Read 2 more answers