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3 years ago

Help need answers to this asap

Mathematics

1 answer:

k0ka [10]3 years ago

3 0

Here it is we used the formula of the lateral area of the cylinder

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What is the equation of the quadratic function whose zeros are -2 and 5? *

zaharov [31]

Step-by-step explanation:

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3 years ago

Find the volume of the given prism round to nearest tenth

allochka39001 [22]

Answer:

308.2

Step-by-step explanation:

$A=2(wl+hl+hw)=2*(3.9*13.2+6*13.2+6*3.9)$ ≈ $308.16cm^2$

≈ is approximately

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3 years ago

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Solve the inequality 4(k − 5) + 12k ≥ −4

IgorC [24]

Answer:

k ≥ 1

Step-by-step explanation:

Step 1: Write inequality

4(k - 5) + 12k ≥ -4

Step 2: Solve for <em>k</em>

Distribute 4: 4k - 20 + 12k ≥ -4
Combine like terms: 16k - 20 ≥ -4
Add 20 to both sides: 16k ≥ 16
Divide 16 on both sides: k ≥ 1

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3 years ago

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What is 7/24 times 8/35?

Serga [27]

Answer:

1/15

Step-by-step explanation:

$7/24 * 8/35$

$1/3*1/5=1/15$

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3 years ago

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Suppose a punter kicks a football so that the upward component of its velocity is 80 feet per second. If the ball is 3 feet off

Alexxandr [17]

So hmm check the picture below

$\bf \qquad \textit{initial velocity}\\\\ h = -16t^2+v_ot+h_o \qquad \text{in feet}\\
\\
v_o=\textit{initial velocity of the object}\\
h_o=\textit{initial height of the object}\\
h=\textit{height of the object at "t" seconds}\\\\
-----------------------------\\\\
h(t)=3+80t-16t^2\iff h(t)=-16t^2+80t+3$

a)

well, clearly is 80 ft/s

b)

when t = 1? well 80(1)

c)

in the picture, x-axis is the time and y-axis is the height
so, it reaches its maximum at the vertex, after "x" seconds

$\bf \begin{array}{lcccll}
h(t)=&-16t^2&+80t&+3\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}\qquad 
\left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)$

so it reached the vertex after $\bf -\cfrac{{{ b}}}{2{{ a}}}\quad seconds$

d)

the maximum height of the ball is $\bf {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\quad feet$

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3 years ago