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s2008m [1.1K]
3 years ago
15

help me pls who is like really good at math and could answer any question because i need a question answered asap

Mathematics
1 answer:
Kruka [31]3 years ago
3 0

A? Gime brain if i'm right and a thanks!

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1. Subtract (7 – 19i) from (–6 + 12i). A. –13 – 31i B. –13 + 31i C. 13 – 31i D. 13 + 31i
pav-90 [236]

Answer:

Step-by-step explanation:

(-6+12i)-(7-19i)=

-6+12i-7+19i=

-13+31i

(b)

6 0
3 years ago
Read 2 more answers
PLEASE HELP
rodikova [14]

Answer:  B. 1/2(y - 116) = 64    

Step-by-step explanation:

Since, we know that,

The angle formed by two tangent = \frac{1}{2}(\text{Difference of intercepted Arcs} )  

= \frac{\text{major arc - minor arc}}{2}

Here, Major arc = y°

Minor arc = 116°

And, Angle made by two tangents YX and YZ,

m\angle XYZ = \frac{\text{y - 116}}{2}

64 = \frac{\text{y - 116}}{2}  ( because,  m\angle XYZ = 64^{\circ} )

⇒ \frac{\text{y - 116}}{2} = 64

Which is the required equation to find y,  the measure of XWZ.

Thus, Option B is correct.

8 0
3 years ago
Read 2 more answers
a high school baseball team won 40%of it's first 15 games beginning with 16th game how many games in a row dies the team now hav
Colt1911 [192]
11% would make it work I guess
7 0
3 years ago
What is value of y that makes the equation y = -x + 5 true, when x = -4
Lelechka [254]
The value of y is 9 to make the equation true.
3 0
3 years ago
A rectangular auditorium seats 1144 people. The number of seats in each row exceeds the number of rows by 18. Find the number of
Andrew [12]

Answer:

44 seats in each row

Problem:

A rectangular auditorium seats 1144 people. The number of seats in each row exceeds the number of rows by 18. Find the number of seats in each row.

Step-by-step explanation:

Let n be the number of rows.

If the number of seats exceed the number of rows by 18, then the number ot seats can be represented by n+18.

So we have a n by n+18 rectangle whose number of seats in all is 1144.

So we need to solve n(n+18)=1144

Distribute: n^2+18n=1144

Subtract 1144 on both sides" n^2+18n-1144=0

What two numbers multiply to be -1144 but also add to be 18?

Hmmm.. let's break -1144 down a little into smaller factors.

-1144=2(-572)=4(-286)=8(-143)=-8(13)(11)=-26(44)

We found a pair of factors that will work? -26 and 44.

So the factorization of our quadratic equation is (n-26)(n+44)=0.

This implies either n-26=0 or n+44=0 .

n=26 by adding 26 on both sides for first equation.

n=-44 by subtracting 44 on both sides for second equation.

n=26 is the only one that works.

This means there are 26 rows and 26+18 seats in each row.

26 rows

44 seats in each row

That product does equal 1144 seats in all.

6 0
3 years ago
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