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4 years ago

I really need some help with this question also.

Mathematics

1 answer:

galben [10]4 years ago

7 0

The answer to this problem is B 3/5

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Here we go another question i'm asking you guys to help me with because i don't understand this!

Alexandra [31]

Answer:

1. Less Than

2. Greater Than

Step-by-step explanation:

You know that 1/2 is equal to 4.5/9

So, 2/9 would be less than 1/2.

You know that 1/2 is equal to 5/10

So, 9/10 is greater than 1/2.

Compare each fraction by setting each fraction to the same denominator.

3 0

3 years ago

Which statement can be proved if you are given that SK≌LR?

MaRussiya [10]

I believe it would be D) ST ≈ TR

6 0

3 years ago

3. For a month, a parent offers to increase her son’s allowance by $4 each week. If he earned $9 the first week, how much will h

devlian [24]

Step-by-step explanation:

it would be 9+4=13+4=17 answer $17

6 0

3 years ago

\left|x+5\right|=2x+3

Nezavi [6.7K]

Answer:

x = 2

Step-by-step explanation:

x + 5 = 2x + 3 ( subtract x from both sides )

5 = x + 3 ( subtract 3 from both sides )

2 = x

8 0

2 years ago

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).

seropon [69]

Answer:

$y = -\frac{1}{2}(x^2-2x-8)$

Simplified it is $y=-\frac{1}{2}x^2+x+4$

Step-by-step explanation:

The x-intercepts of a parabola form the factors of the equation. Since the x -intercepts are (-2,0) and (4,0) then the factors are (x+2) and (x-4). Factors are pieces which multiply to make the equation.

$y=(x+2)(x-4)\\y=x^2+2x-4x-8\\y=x^2-2x-8$

This is the standard form of the parabola $ax^2+bx+c$ . Since the y-intercept of the parabola is (0,4) then a number must also be multiplied to it

$y=a(x^2-2x-8)$

We find a by plugging in x=0 and y=4.

$4=a(0^2-2(0)-8)\\4=a(0-0-8)\\4=a(-8)\\\frac{4}{-8} = a\\\frac{-1}{2} = a$

So the equation is $y = -\frac{1}{2}(x^2-2x-8)$ .

When simplified it is $y=-\frac{1}{2}x^2+x+4$

3 0

4 years ago