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aivan3 [116]
2 years ago
8

Can anyone help me please ​

Mathematics
2 answers:
USPshnik [31]2 years ago
7 0

Answer:

i. 2 and 8, 5 and 3

ii. 2 and 5 , 3 and 8

Step-by-step explanation:

alternate meaning opposite side of the inside angles.

transversal is the one dividing them in the y-axis.

xxTIMURxx [149]2 years ago
5 0

Answer:

3&5 are alternate angles

2&8 are also alternate angles

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You put $500 in your bank account. With an interest rate of 5%, how long will it take the account to reach $600? Use the formula
Marat540 [252]
If it’s in years, it will take 4 years to reach 600 dollars if you don’t add anymore into your bank account.
7 0
3 years ago
X²+x=0<br> x³-25x=0<br> x²=4x<br> 4x²-4x=1
-BARSIC- [3]

Answer:

x²+ x = 0

x ( x +1 ) = 0

x = -1

x³-25x=0

x ( x² - 25 ) = 0

x² = 25

x = 5

x²=4x

x² - 4x = 0

x ( x- 4 ) = 0

x = 4

4x²-4x=1

4x²-4x - 1 = 0

4 x² - 2x - 2x - 1 = 0

2x ( 2x - 1 ) - 1 ( 2x- 1 ) = 0

2x- 1 ) ² = 0

2x = 1

x = 1/ 2

mark me as brainliest

7 0
3 years ago
What is the value of 40/z, when z = 10? <br><br>I WILL GIBE BRAINLY POINTS
Mamont248 [21]

Replace x with 10 and simplify the fraction.

40/10 = 4/1 = 4

The answer is 4

5 0
2 years ago
Rationalize the denominator of sqrt -49 over (7 - 2i) - (4 + 9i)
zubka84 [21]
\sqrt{ \frac{-49}{(7-2i)-(4+9i) } } &#10;

This one is quite the deal, but we can begin by distributing the negative on the denominator and getting rid of the parenthesis:

\frac{ \sqrt{-49}}{7-2i-4-9i}

See how the denominator now is more a simplification of like terms, with this I mean that you operate the numbers with an "i" together and the ones that do not have an "i" together as well. Namely, the 7 and the -4, the -2i with the -9i.
Therefore having the result: 

\frac{ \sqrt{-49} }{3-11i}

Now, the \sqrt{-49} must be respresented as an imaginary number, and using the multiplication of radicals, we can simplify it to \sqrt{49}  \sqrt{-1}
This means that we get the result 7i for the numerator.

\frac{7i}{3-11i}

In order to rationalize this fraction even further, we have to remember an identity from the previous algebra classes, namely: x^2 - y^2 =(x+y)(x-y)
The difference of squares allows us to remove the imaginary part of this fraction, leaving us with a real number, hopefully, on the denominator.

\frac{7i (3+11i)}{(3-11i)(3+11i)}

See, all I did there was multiply both numerator and denominator with (3+11i) so I could complete the difference of squares.
See how (3-11i)(3+11i)= 3^2 -(11i)^2 therefore, we can finally write:

\frac{7i(3+11i)}{3^2 - (11i)^2 }

I'll let you take it from here, all you have to do is simplify it further.
The simplification is quite straightforward, the numerator distributed the 7i. Namely the product 7i(3+11i) = 21i+77i^2.
You should know from your classes that i^2 = -1, thefore the numerator simplifies to -77+21i
You can do it as a curious thing, but simplifying yields the result:
\frac{-77+21i}{130}
7 0
3 years ago
Megan creates a scalo drawing of a car. The ratio of her scalo drawing longth to actual car
timurjin [86]

Answer:

the answer is 8cm

4 0
3 years ago
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