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3 years ago

I got it an 80% on my test and there were 25 questions how much did i miss

Mathematics

2 answers:

user100 [1]3 years ago

7 0

Answer:

5 questions

Step-by-step explanation:

5 wrong = 80%

Good job !

Lapatulllka [165]3 years ago

5 0

Answer:

you missed 5

Step-by-step explanation:

80 percent of 25 is 20

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How do I solve for x and y?

Lesechka [4]

Cancel out the terms from one side first then do it for the other one. 4 example make x and individual by multiply the other side by 9 the evaluate. do the same for y

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3 years ago

Which of these is the algebraic expression for the verbal expression "ten times the difference of a number and twelve?" can some

GenaCL600 [577]

Answer:

10(x - 12)

Step-by-step explanation:

10(x - 12)

10x - 120 Distributive Property

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3 years ago

Can anyone rewrite the quadratic function in standard form?

ycow [4]

Answer:

So we first open multiply the parenthesis by 9. 9x+5 is what it is. Now we need to simply it even more with the 2 parenthesis

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3 years ago

The line CD passes through the points C (2, -1) and D (1, 1). Which of the

inn [45]

Answer:

The equation of the straight line in point - slope form

y +1 = -2 ( x-2)

Step-by-step explanation:

Step(i):-

Given points are C( 2,-1) and D(1,1)

Slope of the line

$m = \frac{y_{2}-y_{1} }{x_{2}-x_{1} } = \frac{1-(-1)}{1-2} = \frac{2}{-1} = -2$

m = -2

Step(ii):-

Equation of the straight line passing through the point ( 2,-1) and having slope

m =-2

y - y₁ = m ( x- x₁)

y - (-1) = -2 ( x-2)

y +1 = -2 ( x-2)

Final answer:-

The equation of the straight line

y +1 = -2 ( x-2)

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3 years ago