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horsena [70]
3 years ago
9

5. If 4 books and 5 pencils cost 56KM, 5 books and 4 pencils

Mathematics
1 answer:
alexdok [17]3 years ago
8 0

Answer:

14 km its C  15.8 km  D

Step-by-step explanation:

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Mariah is randomly choosing three books to read from the following: 5 mysteries, 7 biographies, and 8 science fiction novels. Wh
Alinara [238K]
There are 20 C3 possible ways to choose 3 books to read.
There are 5 C3 possible ways to choose 3 mysteries to read.
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There are 1 C3 possible ways to choose 3 books that are not all mysteries.
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7 0
3 years ago
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A military cannon is placed at the base of a hill. The cannon is fired at an angle toward the hill. The path
katrin [286]

Answer:

Algebracicaly speaking the answer would be either -13.3876 or - 158.612 through the quadratic equation, but these answers don’t make sense in this real world scenario.

Step-by-step explanation:

7 0
2 years ago
What is the solution to 4(x-1)-2(3x+5)=-3x-1
Margarita [4]

To solve this problem, we need to get the variable x alone on one side of the equation. To begin, we are going to use the distributive property twice on the left side of the equation to expand the multiplication and get rid of the parentheses.

4(x-1) - 2(3x + 5) = -3x -1

4x - 4 -6x - 10 = -3x - 1

Next, we should combine like terms on the left side of the equation. This means we should add/subtract the variable terms and the constant terms in order to simplify this equation further.

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Then, we have to add 3x to both sides of the equation to get the variable terms all on the left side of the equation.

x - 14 = -1

After that, we should add 14 to both sides of the equation to get the variable x alone one the left side of the equation.

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Hope this helps!

4 0
3 years ago
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Find the value of x pls help
bogdanovich [222]

Answer: 90 degrees

Step-by-step explanation:

It is a right angle which means it is 90 degrees. Plz mark me brainliest

5 0
2 years ago
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4vir4ik [10]
Exponential equation is
y=a(b)ˣ

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when 0>b>1, it is decay

so

we want the 2nd number to be more than 1
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7 0
3 years ago
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