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Ilya [14]
3 years ago
5

What algebraic property is demonstrated in the equation below? 5(8x-4) - 10= 40x-20 -10

Mathematics
2 answers:
Nikolay [14]3 years ago
8 0

Answer:

Step-by-step explanation:

Suubstitution

Nataly [62]3 years ago
3 0

Answer:

numeric

Step-by-step explanation:

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Name a three-dimensional shape that has four triangular faces and one rectangular face. Name a three-dimensional shaoe that has
rodikova [14]

The answers would be pyramid and triangular prism.

3 0
3 years ago
Find the area of the figure. (Sides meet at right angles.)
Harrizon [31]

Answer:

<h2>80 cm²</h2><h2 />

Step-by-step explanation:

to get the area of the given figure,

we need to split it in to two (see attached)

then area of a rectangle = length x width

A1 = 15 cm x 4 cm = 60 cm²

A2 = 5 cm x 4 cm = 20 cm²

Area = A1 + A2

        = 60 + 20

        = 80 cm²

4 0
3 years ago
Can you help me with number 6? <br> Confused abit <br> Please
Sunny_sXe [5.5K]

You can see the three diagram attached. Each link is labeled with the probability: you have probability 1/6 that a six is rolled, and 5/6 that it is not rolled.


To answer the questions, find the path that brings you to the desired outcome, and multiply all the labels you meet.


First question:

To get three sixes, you have to choose the left path at each roll. The probability is always 1/6, so the answer is


\frac{1}{6} \times \frac{1}{6} \times \frac{1}{6} = \frac{1}{6^3}


Second question:

To get no sixes, you have to choose the right path at each roll. The probability is always 5/6, so the answer is


\frac{5}{6} \times \frac{5}{6} \times \frac{5}{6} = \frac{5^3}{6^3}


Third question:

To get exactly one six, it can either be the first, second or third roll.


In all cases, you have to choose the left path once and the right path twice: left-right-right mean that you get the six in the first roll, right-left-right means that you get the six in the second roll, right-right-left means that you get the six in the third roll.


In every case, the left turn has probability 1/6, and the right turn has probability 5/6. The probability of each combination is thus


\frac{1}{6} \times \frac{5}{6} \times \frac{5}{6} = \frac{5^2}{6^3}


And since there are three of these combinations, The answer is


3\frac{5^2}{6^3}


Fourth question:

Since the question suggests to use what we already achieved, let's do it: having at least one six is the complementary event of having no sixes at all. If an event has probability p, its complementary has probability 1-p. So, since the probability of no sixes is known, the probability of at least one six is


1 - \frac{5^3}{6^3}

4 0
3 years ago
There are 90 girls and 60 boys in the 6th grade at a middle school. Of these students, 9 girls and 3 boys write left-headed. Wha
natta225 [31]

Answer:

8%

Step-by-step explanation:

9+3=12 (total number of students that write left handed)

90+60=150 (total number of 6th graders)

12/150 x 100% = 8%

6 0
1 year ago
An overseas telephone call costs 0.36 per minute how much would a 6-Minute call cost??
vovikov84 [41]

This problem states that an overseas telephone call costs 0.36 cents per minute. They spend 6 minutes on the call.

All you have to do is multiply 0.36 cents on 6 minutes.

Your answer is $2.16

Hope this helped! :D

7 0
3 years ago
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