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inn [45]
3 years ago
13

The height (in feet) of a certain rocket t seconds after it leaves the ground is modeled by

Mathematics
1 answer:
wolverine [178]3 years ago
7 0

Answer:

The answer is 1/2 second

Step-by-step explanation:

Hope this helps

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Plz help me I need your help badly plz help me with this question I need your help plz help me I’m begging you plz help me plz p
7nadin3 [17]
It is 255 cm^2

This is a very basic area problem. You should try refreshing on some of your multiplication and addition skills. Try reading patterns, maybe. Also learning geometric proofs is VITAL.
3 0
3 years ago
Read 2 more answers
Identify the vertex, focus, and directrix for the parabola in the figure.
adell [148]

The answers are

focus: (−2,3)

directrix: y=7

vertex: (−2,5)

The vertex is at the point (−2,5), the focus is at the point (−2,3), and the directrix is the line at y=7.

Hope this helps

5 0
3 years ago
Use the Factor Theorem and synthetic division to show x + 5 is a factor of f(x) = 2x3 + 7x2 − 14x + 5
olga2289 [7]

Answer:

Factor theorem: f(-5) = 0.

Synthetic division: f(x) = (x + 5)\, (2\, x^2 -3\, x + 1).

Step-by-step explanation:

<h3>Factor Theorem</h3>

By the factor theorem, a monomial of the form (x - a) (where a is a constant) is a factor of polynomial f(x) if and only if f(a) = 0.

In this question, the monomial is (x + 5), which is equivalently (x - (-5)). a = -5.

\begin{aligned}& f(-5) \\ &= 2 \times (-5)^{3} + 7 \times (-5)^{2}- 14\times (-5) + 5\\ &= -250 + 175 + 70 + 5 \\ &= 0\end{aligned}.

Hence, by the factor theorem,  (x + 5), which is equivalent to (x - (-5)), is a factor of f(x).

<h3>Synthetic Division</h3>

\begin{aligned}& f(x) \\ &= 2\, x^{3} + 7\, x^{2} - 14\, x + 5 \\ &= \underbrace{(x + 5) \, (2\, x^2)}_{2\, x^{3} + 10\, x^{2}} - 3\, x^{2} - 14\, x + 5 \\ &= \underbrace{(x + 5) \, (2\, x^2)}_{2\, x^{3} + 10\, x^{2}} + \underbrace{(x + 5)\, (-3\, x)}_{-3\, x^{2} - 15\, x} + (x + 5) \\ &= (x + 5)\, (2\, x^{2} - 3\, x + 1)\end{aligned}.

The remainder is 0 when dividing f(x) by (x + 5). Hence, (x + 5)\! is a factor of f(x)\!.

6 0
4 years ago
Ali and Janet are selling gifts at a local craft show. For every bar of soap that Ali sells, she earns $5. For every mug that Ja
Alexus [3.1K]

Answer:

95$

Step-by-step explanation:

Alli sells 5 bars, for each bar she earnd 5$ so she earns 5*5=25$

Janet sells 7 mugs, and for every mug she earns 10$ (twice then Alli), so she earns 7*10=70$

Together: 25+70=95$

7 0
3 years ago
Read 2 more answers
WILL MARK BRAINLIEST!!! 6²+9³-16(2h+15)=5h + 9
Dmitrij [34]

Answer:

765-32h-240=5h+9

---->h=516/37

Step-by-step explanation:

5 0
3 years ago
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