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2 years ago

Last one I promise!! Help me plz I will help u

Mathematics

1 answer:

Murrr4er [49]2 years ago

5 0

Answer is
C. it's one half the area of rectangle of length 4 units and 3 units

because
Area of rectangle = 4 x 3 = 12
Area of triangle = 1/2(4)(3) = 6

so Area of triangle is one half the area of rectangle of 4 and 3 units

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Find the gradient of the line segment between the points (0,6) and (2,16).

maks197457 [2]

Answer:

Step-by-step explanation:

The gradient is the ratio of the change in y to the change in x:

m = ∆y/∆x = (16 -6)/(2 -0) = 10/2 = 5

The gradient of the line segment is 5.

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2 years ago

What’s (-2/5)-(-4/5)=

bekas [8.4K]

Answer:

0.4

Step-by-step explanation:

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2 years ago

Terry earns $6.50 per hour babysitting.

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It's c because$6.50h = m h = 4.25

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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

2 years ago

SHOW WORK PLEASE THANKS<br> WILL GIVE BRAINLIEST ANSWER :)<br> Add: 8 gallons + 8 L = ? gallons

Firdavs [7]

Answer: 10.11 gallons

Step-by-step explanation: So I took the 8 gallons + 8liters. I figured you can’t do that. So i took the 8 Liters and converted it into gallons. And i got 2.11 gallons. So i did the math and added 2.11 + 8 gallons. The result was 10.11 gallons. Hope that will work

5 0

2 years ago

Read 2 more answers