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sattari [20]
2 years ago
11

3. Simplify. a) 5x + 2(x - y) b) 3a - 2b + 4a - 9b c) 2(x - y) + 3(x - y)

Mathematics
1 answer:
mixer [17]2 years ago
7 0
A. 7x-2y
b. 7a-11b
c. x-y

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In the diagram, the measure of angle 3 is 105°. Which angle must also measure 105°? Angle1 Angle4 Angle6 Angle8
Lunna [17]

Answer:

<h2><1</h2>

option A is the right option.

Here,

<3=105°

<1=<3(being vertically opposite angles)

<1=105°

Explanation:

Please see the attached picture.

There,

<AOC and <BOD are formed by intersected line segments and they lie to the opposite side of common vertex.They are called vertically opposite angles.<AOD and <BOC are another pairs of vertically opposite angles. Vertically opposite angles are always equal.

Hope this helps..

Good luck on your assignment...

8 0
3 years ago
4/5 y + 7/10 z - 1/5 y + 1/5 z .<br> combine like terms . <br> PLEASE HELP
sveticcg [70]

Answer:

3/5 y   +9/10 z

Step-by-step explanation:

4/5 y + 7/10 z - 1/5 y + 1/5 z

4/5 y - 1/5 y + 7/10 z + 1/5 z

We need to get a common denominator for the z term of 10

4/5 y - 1/5 y + 7/10 z + 1/5 *2/2 z

4/5 y - 1/5 y + 7/10 z + 2/10 z

3/5 y   +9/10 z

5 0
3 years ago
shawn is typing a paper for class. he can type 1 1/7 pages in 1/3 of an hour. how many pages can shawn type in one hour?
SCORPION-xisa [38]
He could type 3 3/7 in one hour.I think this because since it is 1/3 you would have to multiply it by 3.So you multiply 1/3 by 3,It would give one hour.When you multiply 1 1/7 by 3 it would give you 3 3/7.
4 0
3 years ago
X²- 49=0 <br><br>what is the answer is for my exam? Thanks to the one who helps me has 10 points​
Nikitich [7]

Step-by-step explanation:

<em>x² - 49 = 0 </em>

<em>or, x² - (7²) = 0</em>

<em>or, ( x + 7 ) ( x - 7 ) = 0</em>

<em>hope</em><em> </em><em>this</em><em> </em><em>answer</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>you</em><em>. </em>

8 0
2 years ago
Read 2 more answers
Luis and liz each rounded 635,974 to the nearest ten thousand. Louis wrote 630000 and liz wrote 640000.who is correct ? explain
Naddik [55]
Liz is correct. Louis accidently rounded down instead of rounding up. He should've rounded up because 5 or more is rounding up.
5 0
2 years ago
Read 2 more answers
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