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grandymaker [24]
4 years ago
12

Greg and Lu are building a toy hydraulic crane, as shown in the picture.

Mathematics
2 answers:
iVinArrow [24]4 years ago
6 0
So,

Notice that there is a triangle with two of the angles given.  We know that the sum of any triangle's angles will always be 180°.  Thus, we can subtract the two given angles from 180, and that will give us the measure of angle ABC.

180 - 20 - 25 = 160 - 25 = 135

The measure of angle ABC is 135°.

The correct option is D.
Aleks [24]4 years ago
5 0

Answer:

D

Step-by-step explanation:

credit goes to the one that answered it


Notice that there is a triangle with two of the angles given.  We know that the sum of any triangle's angles will always be 180°.  Thus, we can subtract the two given angles from 180, and that will give us the measure of angle ABC.


180 - 20 - 25 = 160 - 25 = 135


The measure of angle ABC is 135°.


The correct option is D.

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Maria wants to know if the number of words on a page in her earth science book is generally more than the number of words on a p
zubka84 [21]

Answer:

I believe the answer is D

Step-by-step explanation:

I'm not 100% sure though

8 0
2 years ago
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Between the first and second year of existence of a community service organization, the membership of the organization grew by 1
Marianna [84]

Answer:

i don't know the answer sorry

7 0
3 years ago
Multiply
Cloud [144]

Answer:

12 x^4 + 18 x^3 - 9 x^2 thus D is the correct answer.

Step-by-step explanation:

Expand the following:

3 x^2 (4 x^2 + 6 x - 3)

3 x^2 (4 x^2 + 6 x - 3) = 3 x^2 (4 x^2) + 3 x^2 (6 x) + 3 x^2 (-3):

3 4 x^2 x^2 + 3 6 x^2 x - 3 3 x^2

3 (-3) = -9:

3 4 x^2 x^2 + 3 6 x^2 x + -9 x^2

3 x^2×6 x = 3 x^(2 + 1)×6:

3 4 x^2 x^2 + 3×6 x^(2 + 1) - 9 x^2

2 + 1 = 3:

3 4 x^2 x^2 + 3 6 x^3 - 9 x^2

3×6 = 18:

3 4 x^2 x^2 + 18 x^3 - 9 x^2

3 x^2×4 x^2 = 3 x^4×4:

3×4 x^4 + 18 x^3 - 9 x^2

3×4 = 12:

Answer:  12 x^4 + 18 x^3 - 9 x^2

6 0
3 years ago
Please help: 3(x+2)+2(x-4)=x-3(x+3)
qwelly [4]

<em>*Distribute*</em>

3x+6+2x-8=x-3x-9

<em>*Combine like terms*</em>

5x-2=-2x-9

<em>*Add 2x to both sides*</em>

7x-2=-9

<em>*Add 2 to both sides*</em>

7x=-7

<em>*Divide both sides by 7*</em>

x=-1

Hope this helps!!

4 0
4 years ago
Read 2 more answers
1. y= 2x - 3<br> y=-3x + 2
Bond [772]

Answer:

x=1,y=-1

Step-by-step explanation:

the ans is 1 and -1.

8 0
3 years ago
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