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maw [93]
4 years ago
15

Simplify -2/3-3/5A.-1/15B.-19/15C.-2/5D.-5/8

Mathematics
2 answers:
Mandarinka [93]4 years ago
5 0
You answer is B -19/15
shtirl [24]4 years ago
3 0
That is -1 and 4/15 !!!!!!!!
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A bluebird is sitting in her nest 10 feet up in a tree when she looks down and sees a cat and a worm. she decides to use math to
GarryVolchara [31]

Answer:

12.2 feet

Step-by-step explanation:

The key to this problem is trigonometry.

Imagine a right triangle. With a height, 10 ft (representing the tree's height), and a base of 7 ft (representing the horizontal distance to the worm).

Now the hypoteneuse length, or otherwise the distance from the worm is unknown.

So this is where we can use the pythagorean theorem.

a^2 + b^2 = c^2

c here is the hypoteneuse length, and a and b are the other lengths of the triangle.

Since we know a and b we can solve for c.

But first we will square root both sides of the equation to get c and not  c^2.

\sqrt{a^2 + b^2} = c

Now just plug in our values for a and b respectively. (It doesn't matter what number replaces a or b, just make sure you are replacing a and b with the 2 known values) Calculate.

\sqrt{10^2 + 7^2} = \sqrt{100 + 49} = \sqrt{149} = 12.206....

Round to the nearest tenth.

12.2 feet

7 0
3 years ago
The area of a rectangular painting is given by the trinomial x2 + 4x - 21. What are the possible dimensions of the painting? Use
zloy xaker [14]
To find the dimensions you can just factor the equation...

x^2+4x-21

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x(x-3)+7(x-3)

(x+7)(x-3) and this is equal to LW or WL

And note that x>3 for any possible solution.

3 0
3 years ago
Read 2 more answers
#1: Solve the inequality below.<br> -3x + 5 &lt; -19
frosja888 [35]

Explanation: Just like any of your two-step equations,

in this inequality,  start by isolating the x term which in this

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To get x by itself, divide both sides by -3 but watch out.

When you multiply or divide both sides of an inequality by a

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So we have x < 8 and put your final answer in

set notation and it look like this → {x: x < 8}.

4 0
3 years ago
The question is below:
Gnom [1K]

Answer:

(1, -4)

Step-by-step explanation:

Hope this helps!

8 0
2 years ago
Read 2 more answers
(8y+x+12)= <br> what is the answer
liraira [26]

8y + x + 12

other then that, you cannot further simplify this, nor can you factor because the greatest common factor for all of them is just 1

5 0
3 years ago
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