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pshichka [43]
3 years ago
12

The height of a projectile launched upward at a speed of 48 feet/second from a height of 160 feet is given by the function h(t)=

-16sup(t,2)+48t+160. How long will it take the projectile to hit the ground?
Mathematics
1 answer:
Grace [21]3 years ago
5 0

Answer:

Hello,

5 s

Step-by-step explanation:

h(t)=-16t^2+48t+160\\=-16(t^2-3t-10)\\=-16(t^2-5t+2t-10)\\=-16(t(t-5)+2(t-5))\\=-16(t-5)(t+2)\\\\h(t)=0 \Longleftrightarrow\ t=-2\ or\ t=5\\\\Only\ t=5\ is \ a\ answer.(time\ must\ be\ positive)

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Determine the slope of a line given points, (-5, 8) and (-8,5).​
Contact [7]

Answer:

1

Step-by-step explanation:

We can use the slope formula

m = (y2-y1)/(x2-x1)

    = (5-8)/(-8 - -5)

    = -3/(-8+5)

    = -3/-3

   = 1

3 0
3 years ago
Starting with the standard form of an equation ax + by = c, solve this expression for y in terms of a, b, c, and x. then put the
Vika [28.1K]
Ax+by=c
a=(-by+c)/x
b=(-ax+c)/x
c=ax+by
x=(-by+c)/a
y=(-ax+c)/b. or y= -a/b x + c/b which is slope intercept form
4 0
3 years ago
The ratio of savings to expenditure is 2:8 find the savings if the expenditure is 24,000​
WITCHER [35]

Answer:

the savings is 6000

Step-by-step explanation:

We are told that the ratio of savings to expenditure is 2: 8, that is, that person saves 2 when he spends 8.

They tell us to find the savings when the cost is 24,000, so we are left with:

24000 * 2/8 = 6000

which means that when 24000 are spent the savings is 6000

6 0
3 years ago
Can y’all help me and tell me what the answer is please I’m a bit stuck
12345 [234]

Answer:

The correct choice is:

-2 to the 4th power is positive 16.

Option C is correct.

Step-by-step explanation:

We need to find mistake make in work below:

(-2x^4)^4=-16x^{16}

The mistake here is when we have even power, the negative sign gets positive i.e (-a)^m=a^m if m is even

so, in our case it would be:

(-2x^4)^4=16x^{16}

The correct choice is:

-2 to the 4th power is positive 16.

Option C is correct.

5 0
2 years ago
The perimeter of a square room is 52 meters. What is the cost of tiling it at $5 per square meter?
Ludmilka [50]
First we have to find the area. To do that, we first have to find the side lengths of the square. Since a square has all four sides same length, we can find this by dividing: 52/4 = 13

Now we'll find the area in square meters: 13 * 13 = 169
So the area is 169 square meters.
So to find out how much that will cost, we will multiply the number of square meters by the amount it cost per square meter: 169 * $5 = $845

So it will cost $845
7 0
3 years ago
Read 2 more answers
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