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liubo4ka [24]
3 years ago
9

Write the sum or difference in the standard form a + bi.( 3 + 3i) - ( -6 + i)

Mathematics
1 answer:
fiasKO [112]3 years ago
7 0
The answer is 9+2i 

i hope it does help you
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Help please.....<br><br> What degree is angle BDA?<br> What degree is angle BCA?
Paladinen [302]
<BOA = 360 -250 = 110
<<span>BDA = 110/2 = 55

<</span><span>BCA = 360 - (90+90+110)
</span><<span>BCA = 360 - 290
<</span><span>BCA = 70</span>
6 0
3 years ago
Ally has 4 times as many pencils as Anna Claire. They have 30 pencils in all. How many pencils does Ally have?
dexar [7]

T = 30

A = 4c

A + c = T

Anna Claire has 6 pencils. Times 4 makes Ally's pencil count. 4 * 6 = 24

24 + 6 = 30. So, you answer is: Ally has 24 pencils.

5 0
3 years ago
Allison claims that the (triangle)ABQ is similar to (triangle)RPQ, given that AB and PR are parallel. Which of Allison's claims
S_A_V [24]
I draw the two triangles, see the picture attached.

As you can see, angle 1 and 2 are vertically opposite angles because they are formed by the same two crossing lines and they face each other.

Angles <span>ABQ and QPR, as well as angles BAQ and QRP, are alternate interior angles because they are formed by </span><span>two parallel lines crossed by a transversal, and they are inside the two lines on opposite sides of the transversal.</span>

Hence, Allison's correct claims are:
1 = 2 because they are vertically opposite angles. 
BAQ = QRP because they are alternate interior angles. 

Therefore Allison, in order to prove her claim, can use the AA similarity theorem: if two angles of a triangle are congruent to two angles of the other triangle, then the two triangles are similar. 

3 0
3 years ago
Converting 8½% for decimal ​
Lana71 [14]

Answer:

0.085

Step-by-step explanation:

We know that 1/2=0.5. And to convert from percent to decimal you have to divide by 100.

7 0
2 years ago
Read 2 more answers
Samantha and Luis are attempting to determine the average number of library books that seventh-grade students check out at one t
BartSMP [9]
Luis’ sample would be the most random, because not everyone in the cafeteria might check out books from the library, but since everyone Samantha surveyed was in the library already, most of the people she surveyed would be more consistent in their responses.
4 0
3 years ago
Read 2 more answers
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