3 years ago

Which sentence contains an error?

Mathematics

1 answer:

White raven [17]3 years ago

5 0

The witness did not state WHETHER the victim was on the east or west side of the street.

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A parabola opening up or down has vertex (0,0) and passes through (4,2). Write it’s equation in vertex form

marshall27 [118]

Equation in vertex form, y= (-1/4) x² + 4

Step-by-step explanation:

we have the equation,

y = ax² + 4 ( we need to find "a")

Now we have,

2 = a(4)2 + 4

2 = a (8)+ 4

2-4 = 8a

-2= 8a

a= -1/4

Substituting the value of "a" in the equation, we have

y = (-1/4)(x- 0)² + 4 (or) y= (-1/4) x² + 4

The parabola is opens downward. Therefore the vertex is above the x-axis and then the parabola passes through a point below the x-axis.

Equation in vertex form= y= (-1/4) x² + 4

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3 years ago

Solve equation 6.7 x -2.3=?

boyakko [2]

The answer is -15.41.

7 0

3 years ago

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Please help me with this will give you brainliest!!

Sergio [31]

Answer:

They are both 122 degrees

Step-by-step explanation:

3 0

3 years ago

Fill in the table using this function rule. y=29-4x

Colt1911 [192]

Answer:

x.1 y.25

x.3 y.17

x.5 y.9

x.6 y.5

Step-by-step explanation:

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3 years ago

What is the area of this figure? ___ units^2

enot [183]

Answer:

$42\ units^{2}$

Step-by-step explanation:

we know that

The area of the figure is equal to the area of a rectangle plus the area of two triangles

Find the area of rectangle

Observing the graph

The area of rectangle is equal to

$A=bh=(2+5)(2+2)=28\ units^{2}$

Find the area of the top triangle

$A=\frac{1}{2}bh=\frac{1}{2}(2+5)(4-2)=7\ units^{2}$

Find the area of the bottom triangle

$A=\frac{1}{2}bh=\frac{1}{2}(2+5)(-2+4)=7\ units^{2}$

the area of the figure is equal to

$A=28\ units^{2}+7\ units^{2}+7\ units^{2}=42\ units^{2}$

5 0

3 years ago