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3 years ago

How do you find the area of a triangular prism

2 answers:

8 0

Answer:The formula A=12bh is used to find the area of the top and bases triangular faces, where A = area, b = base, and h = height. The formula A=lw is used to find the area of the three rectangular side faces, where A = area, l = length, and w = width.

Plugging in the measurements that are given in the net, calculate the area of each face. Remember to use the correct area formula for the triangles

qaws [65]3 years ago

5 0

Use the formula A = 1/2 b × h.

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A teenager who is 5 feet tall throws an object into the air. The quadratic function LaTeX: f\left(x\right)=-16x^2+64x+5f ( x ) =

tia_tia [17]

Answer:

At approximately x = 0.08 and x = 3.92.

Step-by-step explanation:

The height of the ball is modeled by the function:

$f(x)=-16x^2+64x+5$

Where f(x) is the height after x seconds.

We want to determine the time(s) when the ball is 10 feet in the air.

Therefore, we will set the function equal to 10 and solve for x:

$10=-16x^2+64x+5$

Subtracting 10 from both sides:

$-16x^2+64x-5=0$

For simplicity, divide both sides by -1:

$16x^2-64x+5=0$

We will use the quadratic formula. In this case a = 16, b = -64, and c = 5. Therefore:

$\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

Substitute:

$\displaystyle x=\frac{-(-64)\pm\sqrt{(-64)^2-4(16)(5)}}{2(16)}$

Evaluate:

$\displaystyle x=\frac{64\pm\sqrt{3776}}{32}$

Simplify the square root:

$\sqrt{3776}=\sqrt{64\cdot 59}=8\sqrt{59}$

Therefore:

$\displaystyle x=\frac{64\pm8\sqrt{59}}{32}$

Simplify:

$\displaystyle x=\frac{8\pm\sqrt{59}}{4}$

Approximate:

$\displaystyle x=\frac{8+\sqrt{59}}{4}\approx 3.92\text{ and } x=\frac{8-\sqrt{59}}{4}\approx0.08$

Therefore, the ball will reach a height of 10 feet at approximately x = 0.08 and x = 3.92.

7 0

3 years ago

Which has the bigger surface area? Jamal's, which is 3 by 3 by 4 ft, or Andy's, which is 4 by 2 by 5 ft and why?

oksano4ka [1.4K]

Jamal-3 x 3 = 9 x 4 = 36

Andy- 4 x 2 = 8 x 5 = 45

Andy's surface area is bigger.

6 0

4 years ago

What is an equation of the line that passes through the points (5,8) and (-5,2)?

deff fn [24]

hi there! here's my answer for you...

Answer:

y = 3/5x + 5

Explanation:

Use the slope formula and slope-intercept form y = mx + b to find the equation.

<em>hope this helped. have a good one!</em>

5 0

3 years ago

Read 2 more answers

A rectangular prism is a

OleMash [197]

Answer: Three dimensional

Step-by-step explanation:

A rectangular prism is a three-dimensional shape.

[] A one-dimensional shape is a line

[] A two-dimensional shape is a rectangle, circle, etc

[] This means that a rectangular prism is a three-dimensional shape

5 0

2 years ago

FIND ASAP PLEASE. I NEED HELPP

docker41 [41]

I believe the answers are - option 2, 4, and 5.

a prokaryotic cell means “before nucleus” in greek. and from what i remember ( this may be wrong) they also are the ones that have the dna.

i hope this helps! sorry if any are incorrect.

4 0

3 years ago