3 years ago

Will give brainlst Have a nice day

Mathematics

1 answer:

navik [9.2K]3 years ago

5 0

Step-by-step explanat f....k u blablablaaaaaaaaaaaaaasaasaassaa

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If Mike bikes at a speed 10 mph for half an hour, how far would he go? What was Mike's speed (in average) if he covered the dist

patriot [66]

Im guessing mike got 5 miles far because he only biked half an hour.

for the second part i think he went 9 miles per hour ( 18 divided by 2= 9, which would be 9mph)

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3 years ago

Marta receive x amount dollars for helping her dad in the backyard she spent 1.77 of that amount on snacks after buying those sn

alexdok [17]

Answer:

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Step-by-step explanation:

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4 years ago

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Please help! what is an equation of a parabola with x-intercepts at (2,0) and (-7,0) and which passes through the point (1,32)?

grandymaker [24]

Answer:

$f(x)=-4(x-2)(x+7)$

Or, in standard form:

$f(x)=-4x^2-20x+56$

Step-by-step explanation:

We can use the factored form of a quadratic equation:

$f(x)=a(x-p)(x-q)$

Where a is the leading coefficient and p and q are the zeros of the quadratic.

We know that the x-intercepts are at (2, 0) and (-7, 0).

So, let's substitute 2 for p and -7 for q. This yields:

$f(x)=a(x-2)(x+7)$

Now, we need to determine a.

We know that it passes through the point (1, 32). In other words, if we substitute 1 for x, we should get 32 for f(x). Therefore:

$32=a(1-2)(1+7)$

We can now solve for a. First, compute:

$32=a(-1)(8)$

Multiply:

$32=-8a$

Divide both sides by -8:

$a=-4$

So, the value of a is -4.

Therefore, our entire equation is:

$f(x)=-4(x-2)(x+7)$

Notes:

We can expand this into standard form:

$f(x)=-4(x-2)(x+7) \\ f(x)=-4(x^2+5x-14) \\ f(x)=-4x^2-20x+56$

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3 years ago

Tyler can run a mile in 5½ minutes. Which is closest to this rate in feet per minute? a) 2,640

ValentinkaMS [17]

you have to find how many feet r in a mile then divid that by 60 sec.

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4 years ago

How do I do this? I’m not very good at geometry.

garri49 [273]

You need to study more

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3 years ago