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kumpel [21]
3 years ago
9

Plsss need help asap

Mathematics
1 answer:
I am Lyosha [343]3 years ago
7 0
Answer: I believe it’s -2
I’m not sure
Step by step explanation:
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3X-8 &lt; 16<br> Solution is
OLga [1]

Answer: x<8

interval notation is ( -∞,8)

Step-by-step explanation:

x<8

interval notation is ( -∞,8)

6 0
3 years ago
A pumpkin is launched from the top of a 20 foot tall platform at an initial velocity of 84 feet per second. The height, h, of th
Gennadij [26K]
<h2>Explanation:</h2>

In this problem we have a pumpkin is launched from the top of a 20 foot tall platform at an initial velocity of 84 feet per second. So the height, h, of the pumpkin at time t seconds after the launch can be modeled by the equation:

h(t) = -16t^2 + 84t + 20

So this is the equation of a parabola. The maximum of this parabola occurs at its vertex. So let's find this vertex:

\text{The x-value of the vertex is}: \\ \\ t=-\frac{b}{2a} \\ \\ \\ Where: \\ \\ a=-16 \\ \\ b=84 \\ \\ c=20 \\ \\ \\ t=-\frac{84}{2(-16)} \\ \\ t=-\frac{84}{-32} \\ \\ t=\frac{21}{8}=2.625 \\ \\ h(2.625)=-16(2.625)^2+84(2.625)+20 \\ \\ h(2.625)=-110.25+220.5+20 \\ \\ h(2.625)=130.25m

Finally, the maximum occurs at time 2.625 seconds when the height is 130.25m

8 0
3 years ago
John scored 75, 82, 66, and 78 on his history tests. What score must John get on his next test in order to have a mean score of
Pachacha [2.7K]
[75 + 82 + 66 + 78 + x ] / 5 = 76

301 + x = 380

x = 79
3 0
3 years ago
Read 2 more answers
How many sequences of length 5 can be made when each component of the sequence can take 3 different values?
kozerog [31]
Each position in the sequence has 3 choices, and there are 5 positions, so we multiply 3 by itself 5 times:

3^5=243
4 0
3 years ago
The quotient of five times a number and 7 is no more than 10
Akimi4 [234]
The sentence in numerical form is 5x/7≤10
to solve, multiply by 7
5x≤70
lastly, divide by 5
x≤14
3 0
3 years ago
Read 2 more answers
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