MATHEMATICS HIGH SCHOOL

What is the y-intercept when a line has a slope of 1/2 and passes
through the point (2, -1)?

Answers

Answer 1
Answer:

Answer:

2

Step-by-step explanation:

You called this question to the right person. To find the y-intercept, you must do the formula of Point Slope (y-y1 = m (x-x1)) Since 2, is x1 and the -1 is y1, we must lay the equation out like this: y - -1 = m (x-2). Next, we must distribute the slope to the x and the 2, which would allow the x, to fit in with the slope, and the 2 to become 1 since 1/2 x 2 is 1. Now what we need to do is get rid of the -1, so what we do here is add 1. And algebra golden rule, whatever you do to one side, you must do to the other side. This would leave y = 1/2x + 2 And therefore 2 is your y-intercept, since it's at the last part of the equation.

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I have a triangle with side lengths of 2 cm, 3 cm, and 4 cm. If I have a second triangle that is similar that has a shortest side length of 4 cm, what is the longest side length?

Answers

so 2,3,4
another one is
4,x,y
the shortest is 2 and 4
4/2=2

2 time 2=4

the other triangle sides area obviously twice as large

2 times 2=4
2 times 3=6
2 times 4=8



the longest sides is 8 cm

Please do 3 & 4 and show work

Answers

Answer:

3. A=B=70°; C=D=110°

4. A=90°; C=48°

Step-by-step explanation:

Same-side angles of a trapezoid add to 180°.

___

3. (2x) +(x+15) = 180

3x + 15 = 180 . . . . simplify

x +5 = 60 . . . . . . . divide by 3

x = 55

A=B=(x+15)° = (55+15)° = 70°

C=D=2x° = 2·55° = 110°

__

4. You are given the values of one of the angles on each side, so the other can be found by subtraction:

A=180°-D = 90°

C = 180° -132° = 48°

- 4a = 36 find the value of a
​

Answers

Answer:

-9 = a

Step-by-step explanation:

Divide both sides by -4 to isolate a:  a = -36/4 = -9 = a

How do i graph this inequality y < -3

Answers

put a point on -3 on y-axis and graph a  straight line that is parallel to x-axis then color under the line because -3 is greater :)))
i hope this is helpful 
have a nice day 

(18x^5+6x^4-12x^3)÷6x^2

Answers

(3x^3 + x^2 - 2x)
when dividing exponents, subtract the exponents.
ex. x = x^6 / x^2 6-2 = 4 x = x^4

Of 60 students in a class 2/3 are girls, and 2/5 of the class are taking music lessons. What is the maximum number of girls that are not taking music lessons?

Answers

24 girls. Because 60/3=20 20*2=40. So than u do 40/5=8 8*2=16 40-16=24.
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