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mojhsa [17]
2 years ago
14

Which expression would be easier to simplify if you used the associative property to change the grouping? O A. (170 + 30) – 41 O

B. 3+ (-3) OC. [(-0.1) + (-0.3)] + 2.4 o D. –} + [(-5)+​

Mathematics
1 answer:
jekas [21]2 years ago
3 0

Answer:

A.(170+30)-41

Step-by-step explanation:

(170+30)-41=170+(30-41)

200-41=170+(-11)

159=170-11

159=159

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WILL MARK BRAINLIEST!!! NEED THIS ASAP!!
DiKsa [7]
Let's solve this problem step-by-step.

STEP-BY-STEP SOLUTION:

We will be using Pythagoras theorem to solve this problem. This is as this problem forms a right-angle triangle. Pythagoras theorem is the following:

a^2 + b^2 = c^2

Where c = hypotenuse of right-angle triangle

Where a and b = other two sides of right-angle triangle

To begin with, we will substitute the values from the problem into the equation. Then we will make the height of the tree the subject of the equation.

a = height of tree = ?

b = distance from the bird on the ground to the base of the tree = 8 metres

c = distance bird travelled from the ground to the top of the tree = 9 metres

a^2 + b^2 = c^2

a^2 + 8^2 = 9^2

a^2 = 9^2 - 8^2

a = square root of ( 9^2 - 8^2 )

a = square root of ( 81 - 64 )

a = square root of ( 17 )

a = 4.123...

a = 4.1 ( rounded to the nearest tenth )

FINAL ANSWER:

Therefore, the height of the tree is 4.1 metres ( rounded to the nearest tenth ).

Hope this helps! :)
Have a lovely day! <3
3 0
3 years ago
If a+b-c=d, if a-b+c=e, then a= ?
yaroslaw [1]
A + b = d+c 
<span>a - b = e - c </span>
The b and c cancel out. 
<span>2a = d+e </span>
<span>a = (d+e)/2 </span>

4 0
3 years ago
Which figure is a rotation of figure E <br><br> Figure F<br> Figure G<br> Figure H
Masteriza [31]

Answer:

Below.

Step-by-step explanation:

SO basically. E is our main "Subject:

so let's break this down we know it's not h because it's the same thing. You never specified the angle it's rotated by but it is f.

5 0
2 years ago
A rectangular garden has an area of 52 square yards. If we multiply its length and width by 15, what is the area of the new rect
Evgen [1.6K]

Answer:

i think its 11,700

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Determine whether the given value of the variable is a solution to the inequality.
Neko [114]
It is a solution, hope this helped
8 0
3 years ago
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