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ArbitrLikvidat [17]

3 years ago

13

How to solve surface area of prisms and pyramids

2 answers:

Lubov Fominskaja [6]3 years ago

6 0

U need all the q sides

zheka24 [161]3 years ago

3 0

Answer:

Step-by-step explanation:

U need to add all the qsides up

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Whats the area of the trapezoid

Lelu [443]

Step-by-step explanation:

the area of a trapezoid is

(b1 + b2)/2 × h = (10 + 5)/2 × 4 = 15 × 2 = 30 in²

6 0

1 year ago

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Solve the equation using inverse operations. Check your solutions. In your final answer, include all of your work.

Bess [88]

-2x^2=-15-5
-2x^2=-10
x^2=-5
X≠R i am not quite sure but...hope it helps :)

6 0

2 years ago

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The bottom portion of a loading bin is cone shaped. The base radius of this part of the bin is 3.5 feet and the slant height is

jek_recluse [69]

$\bf \textit{lateral surface of a cone}\\\\ LA=\pi r\sqrt{r^2+h^2}~~ \begin{cases} ~~ r=radius\\ sh=\stackrel{slant~height}{\sqrt{r^2+h^2}}\\[-0.5em] \hrulefill\\ r=3.5\\ sh=6.5 \end{cases}\\\\\\ LA=\pi (3.5)(6.5)\implies LA\approx71.47 \\\\[-0.35em] ~\dotfill\\\\ \stackrel{sh}{6.5}=\sqrt{r^2+h^2}\implies 6.5=\sqrt{3.5^2+h^2}\implies 6.5^2=3.5^2+h^2 \\\\\\ 6.5^2-3.5^2=h^2\implies \sqrt{6.5^2-3.5^2}=h\implies \sqrt{30}=h \\\\[-0.35em] ~\dotfill$

$\bf \textit{volume of a cone}\\\\ V=\cfrac{\pi r^2h}{3}~~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ r=3.5\\ h=\sqrt{30} \end{cases}\implies V=\cfrac{\pi (3.5)^2\sqrt{30}}{3}\implies V\approx 70.26$

7 0

2 years ago

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Four more than the quotient of a number and 5 is equal to 9

sweet-ann [11.9K]

Answer:

x=25

Step-by-step explanation:

x/5+4=9

x/5=9-4

x/5=5

x=5*5

x=25

4 0

3 years ago

Joanna split three pitchers of water equally among her eighth plants. What fraction of a pitcher did each player get?

Len [333]

C. Since 3÷8=3/8. You could also multiply 3/8×8 which is simply adding 3 eight times.

6 0

3 years ago