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VLD [36.1K]
3 years ago
5

The function h(t) = –16t2 + 28t + 500 represents the height of a rock t seconds after it is propelled by a slingshot. What does

h(3.2) represent?
Mathematics
1 answer:
Veronika [31]3 years ago
3 0
The time it takes to rise and fall
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Express as a difference.
ElenaW [278]
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b: 5+5
c: 5+5

thats thw andeer
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2 years ago
Are these in the same FACT FAMILY??<br><br> 4 + 5 = 9<br><br> 9 - 5 = 4
a_sh-v [17]

Answer:

yes cause they are the same #s

Step-by-step explanation:

6 0
3 years ago
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Find the length of JL<br> 15<br> None of the other answers are correct<br> 12<br> 3
r-ruslan [8.4K]

Answer:

D: 12

Step-by-step explanation:

The entire segment KI is composed of the segments KJ and JI. So:

KI=KJ+JI

We know that KI is 15.

KJ is (2x-15) and JI is (2x-6). Substitute:

15=(2x-15)+(2x-6)

Solve for x. Combine like terms:

15=4x-21

Add 21 to both sides:

4x=36

Hence, the value of x is:

x=9

We know that JI is 2x-6.

We will substitute 9 for x to find JI. So:

JI=2(9)-6=18-6=12

Hence, our answer is D.

3 0
3 years ago
Helene invested a total of $1,000 in two simple-interest bank accounts. One account paid 5% annual interest; the other paid 8% a
crimeas [40]

a  =  total amount invested at 5%

b = total amount invested at 8%

we know 5% was earned in interest from "a", so that'd be (5/100) * a or 0.05a.

we know 8% was earned in interest from "b", so that'd be (8/100) * a or 0.08b.

we also know that the total for both is 1000, a + b = 100.

\begin{cases} a + b = 1000\\ 0.05a+0.08b=65 \end{cases}\qquad \qquad \stackrel{\textit{since we know}}{a+b=1000}\implies b = 1000-a \\\\\\ \stackrel{\textit{substituting on the 2nd equation}}{0.05a+0.08(100-a)=65}\implies 0.05a+80-0.08a=65 \\\\\\ -0.03a+80=65\implies -0.03a=-15\implies a=\cfrac{-15}{-0.03}\implies \boxed{a = 500} \\\\\\ \stackrel{\textit{we know that}}{b = 1000-a}\implies b=1000-500\implies \boxed{b = 500}

7 0
2 years ago
Read 2 more answers
Maria leaves her house and walks north 6 blocks she then turns and heads east 8 blocks until she reaches Sally's house what is t
eduard
For this question, you will use the Pythagorean theorem. a^{2} +  b^{2} =  c^{2} so6^{2} + 8^{2} = c^{2} 
6^{2} + 8^{2} = 100
\sqrt{100} = 10
so the shortest distance is 10 blocks
6 0
3 years ago
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