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3 years ago

14

How many vetrtices and faces does this shape have i’ll mark brainliest

2 answers:

kipiarov [429]3 years ago

8 0

Answer:

Step-by-step explanation:

this shape has five vertical faces

muminat3 years ago

8 0

Answer:

6

Step-by-step explanation:

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A boy stands 12 metres from the foot of the building and observes the angle of elevation of the top of the building. The height

nikitadnepr [17]

Answer:

What!!

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

HURRYYYYYYYYY!! What is the equation of the quadratic function with a vertex at (2, 25) and an x-intercept at (7,0)?

tangare [24]

Answer:

$y=-(x-7)(x+3)$

which is none of the choices provided.

Are you sure the question is right or even the choices?

You can even write it as:

$y=-(x+3)(x-7)$ but this is still not a choice.

Step-by-step explanation:

The vertex form of a quadratic is $y=a(x-h)^2+k$ .

This is called vertex form because it gives you the vertex is $(h,k)$ .

We are given that $(h,k)=(2,25)$ which makes our equation:

$y=a(x-2)^2+25$ .

We can find the value of $a$ by plugging in the x-intercept (7,0) for $(x,y)$ into:

$y=a(x-2)^2+25$

$0=a(7-2)^2+25$

$0=a(5)^2+25$

Subtract 25 on both sides:

$-25=a(5)^2$

$-25=a(25)$

Divide both sides by 25:

$\frac{-25}{25}=a$

$-1=a$ .

So the equation for the quadratic is:

$y=-1(x-2)^2+25$

Let's put this into factored form since all the choices are in factored form.

This will require us to multiply the (x-2)(x-2) out:

$y=-1(x-2)(x-2)+25$

$y=-1(x^2-2x-2x+4)+25$

$y=-1(x^2-4x+4)+25$

$y=-x^2+4x-4+25$

$y=-x^2+4x+21$

Factor out -1:

$y=-(x^2-4x-21)$

WE need to find two numbers that multiply to be -21 and add to be -4:

$y=-(x-7)(x+3)$

8 0

3 years ago

Read 2 more answers

The area of a triangle is 41 yd^2, with a base of 5 yards. What is the height, in yards?

Annette [7]

Answer:

I am pretty sure the answer would be A.

8 0

3 years ago

Suppose that an individual has a body fat percentage of 16.7% and weighs 188 pounds. How many pounds of his weight is made up of

Volgvan

Answer:

15.867

lbs or almost

16

lbs.

Step-by-step explanation:

5 0

3 years ago

a racing car starts fron rest .if it gains an acceleration of 5m/second square in 10 second ,calculate the final velocity.

hjlf

Answer:

<em>The</em><em> </em><em>final</em><em> </em><em>velocity</em><em> </em><em>would</em><em> </em><em>be</em><em> </em><em>5</em><em>0</em><em> </em><em>m</em><em>/</em><em>s</em><em>.</em>

<em>Its</em><em> </em><em>by</em><em> </em><em>formula</em><em>,</em><em> </em>

<em> $a = \frac{v - u}{t}$ </em>

<em><u>hope</u></em><em><u> </u></em><em><u>it</u></em><em><u> </u></em><em><u>helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

3 0

3 years ago