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Romashka-Z-Leto [24]
4 years ago
10

Use the distributive property to find an expression that is equivalent to 2x(x + 7)-(3x +1)

Mathematics
2 answers:
Mice21 [21]4 years ago
7 0

Answer:

A

Step-by-step explanation:

puteri [66]4 years ago
5 0
The answer for 2x(x+7)-(3x+1) is A.
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Identify the quotient in the form a + bi. HELP ASAP PLEASE!!
Artist 52 [7]

Solving \frac{4-5i}{2+3i} we get -\frac{7}{13}-\frac{22i}{13}

Option A is correct.

Step-by-step explanation:

We need to find the result of \frac{4-5i}{2+3i}

We need to remove i from the denominator. For removing i Multiplying and dividing by 2-3i:

\frac{4-5i}{2+3i}*\frac{2-3i}{2-3i}

Solving:

=\frac{4-5i*2-3i}{2+3i*2-3i}\\=\frac{4(2-3i)-5i*(2-3i)}{(2)^2-(3i)^2}\\=\frac{8-12i-10i+15i^2)}{4-9i^2}\\We\,\,i^2=-1\\=\frac{8-12i-10i+15(-1))}{4-9(-1)}\\=\frac{8-12i-10i-15}{4+9}\\=\frac{8-15-12i-10i}{13}\\=\frac{-7-22i}{13}\\=-\frac{7}{13}-\frac{22i}{13}

So, solving \frac{4-5i}{2+3i} we get -\frac{7}{13}-\frac{22i}{13}

Option A is correct.

Keywords: Complex numbers

Learn more about Complex numbers at:

  • brainly.com/question/10736268
  • brainly.com/question/4678474

#learnwithBrainly

5 0
3 years ago
In a triangle, the measure of the first angle is twice the measure of the second angle. The measure of the 3rd angle is 68 degre
WINSTONCH [101]
To give every angle a label:

First angle = 2x
Second angle = x
Third angle = x + 68
So, because the sum of the interior angles of the triangle is 180°, we can say that: 2x + x + (x + 68) = 180

2x + x + x = 4x

4x + 68 = 180

Isolating for x we get: x = (180-68)/4 x = 28

Because the first angle is twice as large and the third angle is greater than the second angle, the measure of the smallest angle is 28°.
7 0
3 years ago
Write the equation of the line in slope intercept form given the slope is -6 and the y-intercept is -3
Sauron [17]

Answer:

C) y = -6x-3

Step-by-step explanation:

y = mx + b

the m is the slope and the b is the y intercept

3 0
3 years ago
10 points
natulia [17]
The answer would be B
4 0
4 years ago
Find x when y=3 in the literal equation 3x+6y=24
pshichka [43]
When you plug in 3 in for y the equation is 3x + 6(3) = 24

3x + 18 = 24

subtract 18 from both sides

3x = 6

Isolate the x by dividing both side by 3

x = 2
4 0
4 years ago
Read 2 more answers
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