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jonny [76]
3 years ago
14

Which of the following expressions are equivalent to 4 - (-5) +0?

Mathematics
2 answers:
Sedbober [7]3 years ago
8 0

Answer:

A, B, C

Step-by-step explanation:

4 - (-5) + 0

4 - (-5) = 4 + 5 (because a negative + negative = positive)

4 + 5 = 9

a, b and c all equal 9

hopefully this helped you!! :3

Sauron [17]3 years ago
4 0
Answer:a,b,c

ExplainNation:



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Answer:

Down payment

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Step-by-step explanation:

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3 0
3 years ago
What is the area of △ABC?
kirza4 [7]
Answer:
Area = 492.4 m²

Explanation:
The area of the triangle can be calculated using the side-angle-side method as follows:
Area = 0.5 * first side * second side * sin(angle included between these two sides)

This rule is illustrated in the attached image.

Now, we have:
AB = 40 m
BC = 25 m
angle B which is the angle included between AB and BC = 80 degrees

The given angle is included between the two given sides, therefore, we can apply the above rule to get the area.
Area of triangle = 0.5*40*25*sin(80)
Area of triangle = 492.4 m²

Hope this helps :)

3 0
3 years ago
a sprinter running in the olympics starts at the 0 meter mark and ends at the 400 meter mark. it took him 65 seconds to run this
solniwko [45]

Answer:

I am not too sure but I think the answer would be 6

Step-by-step explanation:

3 0
2 years ago
Evaluate the following expression (-3)^-2
OleMash [197]
<h3>Answer: the fraction 1/9</h3>

It is approximately equal to 0.1111

=================================

To get this answer, we use the rule

x^{-k} = \frac{1}{x^k}

The negative exponent tells us to apply the reciprocal to get the exponent to be positive.

So,

(-3)^{-2} = \frac{1}{(-3)^2}\\\\(-3)^{-2} = \frac{1}{9}

Squaring -3 means you square the negative as well

(-3)^2 = (-3)*(-3) = 9

8 0
3 years ago
Read 2 more answers
3x-195&gt;=5(x-21)<br><br>Explanation<br><br>Awnser ​
Anvisha [2.4K]
3x-195>=5x-21
Add 21 to both sides
3x-174>5x
Sub 3x from both sides
-174>2x
Divide both sides by 2
-87>x
6 0
3 years ago
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