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Dafna1 [17]
2 years ago
14

PLEASE HELP!!!

Mathematics
2 answers:
Luda [366]2 years ago
8 0
A. because this happened to my sister 4 times already 
Oduvanchick [21]2 years ago
6 0
The answer would be (C. She may not be able to secure another loan for the next semester.)
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Examine the work shown. Explain the error and find the correct result.
Zepler [3.9K]

2(-12) isn't 24.

It is -24.

So the answer would be 6.

5 0
3 years ago
Read 2 more answers
Alvin is 8 years older than Elga. The sum of their ages is 78. What is Elga's age?
Mazyrski [523]

Answer:

35

Step-by-step explanation:

ok let's look at these old farts.

alvin is 8 years older than elga, so elga needs 8 more years to be as old as Alvin is. AKA,

Alvin = Elga + 8

The sum of their ages is 78.

Alvin + Elga = 78

Now put the equations together,

(Elga + 8) + Elga = 78

2 * Elga = 70

Elga = 35

Therefore, Elga is 35 years old! So old !!

3 0
2 years ago
HELPPPPP!!!!!!!!
Vlad1618 [11]
The circumcenter of a triangle is the point in the plane equidistant from the three vertices of the triangle. so I believe it is A. True..
8 0
3 years ago
Please help! Will give brainliest
jekas [21]

Answer:

5/16??? I think

8 0
2 years ago
Please answer asap!!!!!
kherson [118]

Step-by-step explanation:

The equation of a circle can be the expanded form of

\large \text{$(x-a)^2+(y-b)^2=r^2$}(x−a)

2

+(y−b)

2

=r

2

where rr is the radius of the circle, (a,\ b)(a, b) is the center of the circle, and (x,\ y)(x, y) is a point on the circle.

Here, the equation of the circle is,

\begin{gathered}\begin{aligned}&x^2+y^2+10x-4y-20&=&\ \ 0\\ \\ \Longrightarrow\ \ &x^2+y^2+10x-4y+25+4-49&=&\ \ 0\\ \\ \Longrightarrow\ \ &x^2+y^2+10x-4y+25+4&=&\ \ 49\\ \\ \Longrightarrow\ \ &x^2+10x+25+y^2-4y+4&=&\ \ 49\\ \\ \Longrightarrow\ \ &(x+5)^2+(y-2)^2&=&\ \ 7^2\end{aligned}\end{gathered}

⟹

⟹

⟹

⟹

x

2

+y

2

+10x−4y−20

x

2

+y

2

+10x−4y+25+4−49

x

2

+y

2

+10x−4y+25+4

x

2

+10x+25+y

2

−4y+4

(x+5)

2

+(y−2)

2

=

=

=

=

=

0

0

49

49

7

2

From this, we get two things:

\begin{gathered}\begin{aligned}1.&\ \ \textsf{Center of the circle is $(-5,\ 2)$.}\\ \\ 2.&\ \ \textsf{Radius of the circle is $\bold{7}$ units. }\end{aligned}\end{gathered}

1.

2.

Center of the circle is (−5, 2).

Radius of the circle is 7 units.

Hence the radius is 7 units.

4 0
2 years ago
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