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mixas84 [53]
3 years ago
15

Asking this question again because I need help! what is the surface area of the triangular prism

Mathematics
1 answer:
ElenaW [278]3 years ago
5 0

Answer:

Surface area of the triangular prism is 469 inch^2

Step-by-step explanation:

The surface area of the triangular prism is

Area of the two triangular faces + Area of the three rectangular faces

Area of the prism:

                          = 2(1/2*11*7)+(14*11)+(14*9)+(14*8)\\\\                      = 77+154+126+112\\\\                       = 469 inch^2

The area of the triangular prism is 469 inch^2

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Wouldn’t it be 120 degrees too?
antoniya [11.8K]

Answer:

I think you would be right.

3 0
3 years ago
Piano lessons cost $20 per week how much will it cost in dollars for 16 weeks of piano lessons?
max2010maxim [7]

Answer:

20x16=320

Step-by-step explanation:

I think that's how ya do it

7 0
3 years ago
a car travels 120 mi. a second car, travelling 10 mph faster than the first car, makes the same trip in 1 hr less time. find the
Murrr4er [49]

<span>Let x be the speed of the first car, then (x + 10) is the speed of the second car.

We can write the equation by the condition of the problem:
</span>
\frac{120}{x}- \frac{120}{x+10}=1 \\ 120(x+10)-120(x)=1(x)(x+10)   \\ 120x+1200-120x=x^2+10x \\ x^2+10x-1200=0 \\ D=b^2-4ac=10^2-4*1*(-1200) = 100+4800 = 4900 \\ x_{1,2}= \frac{-bб \sqrt{D} }{2a}  \\  \\ x_1= \frac{-10- \sqrt{4900} }{2}= \frac{-10-70}{2} = -\frac{80}{2}=-40 \ \  \ \O

x_2= \frac{-10+ \sqrt{4900} }{2}= \frac{-10+70}{2} = \frac{60}{2}=30  mph s<span>peed ​​of the first car
</span>
Then 30+10=40 mph speed ​​of the second car

Answer: 30mph and 40 mph.


<span>I hope this helps.</span>
8 0
4 years ago
NEED HELP ASAP
IRINA_888 [86]
I'll start by expanding everything, and 10^(x) means we move the decimal x places to the right. If we move the decimal to the right but there's no number there, that number is 0.
The populations are as follows (in the order in the graph) -
127,180,000
200,000,000
80,619,000
63,708,000
173,615,000
152,510,000

The first difference is the number of digits. The more, the better. The two that stand out at the bottom are Germany and the UK. Next, we look at the leftmost number. Since 6<8, Germany's population > UK's population. All other countries are greater than Germany. Next, we look at the next smallest amount of digits, which is every other country. We look at the first number, which gives us Japan, Nigeria and Bangladesh. Next, we look at the second number, and since 2<5<7, Japan is smaller than Bangladesh and Nigeria is bigger than Bangladesh. Our current list is as follows:
United Kingdom (UK), Germany, Japan, Bangladesh, Nigeria. Since Brazil 
has been proven to be greater than the rest (as it has more digits and 2>1), our list is now 
United Kingdom (UK), Germany, Japan, Bangladesh, Nigeria, Brazil
5 0
3 years ago
Read 2 more answers
) 8(-5d - 4z) use z = 7 and d = 8<br> WHAT IS THE ANSWER
Nitella [24]

If my ans was helpful u can follow me

6 0
4 years ago
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