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seraphim [82]
3 years ago
10

The surface area of a triangular pyramid is 305 square inches. The area of the base is 35 square inches. Each face has a base of

9. What is the slant height? 
DON'T ANSWER THE QUESTION! I ALREADY HAVE THE ANSWER. SORRY, I JUST GOT THE ANSWER. I DON'T KNOW HOW TO DELETE THIS QUESTION.
Mathematics
1 answer:
musickatia [10]3 years ago
3 0
Subtract 35 from 305, and you get 270. The formula for the area of a triangle, where b is base and h is height, is b * h / 2. There are three faces, or 3 triangles, and we know the base, so we can say that 3 * 9 * h / 2 = 270 => 27 * h / 2 = 270 => 27 * h / 2 * 2 = 270 * 2 => 27 * h = 540 => 27 * h / 27 = 540 / 27 => h = 20, so the slant height is 20 inches.
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Scilla [17]
We know that there are total 18 socks, and 3 blue pair
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3 0
3 years ago
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allochka39001 [22]

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Also, in the end you got 12.5. 12.5 is not a number of people that can attend her party. The number has to be a positive integer.

Usually, inequalities are graphed with shading up or down. In this case it is down because you have a limit on how much Gamora can spend.

The actual answer is 12 people.

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5 0
3 years ago
A card is picked at random from a deck of cards, after putting it back another card is picked at random. ​Are these two events d
kvv77 [185]

Answer: Independent event

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When two events are independent of each other, this means that the probability that one event will occurs does not in any way affects the probability of the occurrence of the other event.

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6 0
3 years ago
1.What is (2,-1) translated up 3 units<br> 2.(5,2) translated down 4 and left 1
natka813 [3]

Answer:

1. (2,2)

2. (4,-2)

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5 0
3 years ago
Evelyn is using her grandmother's pancake recipe, but she wants to make 40% more pancakes than the recipe usually prepares. If h
Aleks04 [339]

(C) 7/10 cup is the correct answer

Step-by-step explanation:

First of all we will calculate the 40% of grandmother's recipe then add it to the given flour in grandma's recipe

So,

The amount of flour in grandma's recipe = F_g = 1/2 cups

Calculating percentage

=40\%\ of\ \frac{1}{2}\\=\frac{40}{100}*\frac{1}{2}\\=\frac{2}{10}

So Evelyn needs to add 2/10 cups more to the original quantity.

So,

Flour used by Evelyn:

=\frac{1}{2}+\frac{2}{10}\\\\=\frac{5+2}{10}\\\\=\frac{7}{10}\ cups

Hence,

(C) 7/10 cup is the correct answer

Keywords: Percentage, Quantity

Learn more about percentage at:

  • brainly.com/question/11286417
  • brainly.com/question/11566221

#LearnwithBrainly

3 0
4 years ago
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