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solmaris [256]
3 years ago
14

What is the variable in this expression? 5x^2 + x+7

Mathematics
1 answer:
Zinaida [17]3 years ago
6 0

Answer:

its x

Step-by-step explanation:

hope it helps unlike that other person

You might be interested in
A fair coin is tossed 3 times in a row. What is the probability that heads appears on only the last toss? A. `1/8` B. `3/8` C. `
expeople1 [14]

Answer:

P(heads appears on only the last toss) = \frac{1}{8}

Step-by-step explanation:

A fair coin is tossed 3 times in a row.

When a coin is tossed we get a tail or head T or H

The possible outcomes of 3 coins are

T T T , H H H , T H H, H T H, H H T, H T T , T H T, T T H

So total of 8 possible outcomes

heads appears on only the last toss , first and second toss should be tail

So its T T H. Only one possibility

Probability(any event)  = number of outcomes / total outcomes

P(heads appears on only the last toss) = \frac{1}{8}





6 0
3 years ago
Rationalize the denominator of sqrt -9 / (4-7i) - (6-6i) ...?
Colt1911 [192]
√(- 9 ) / (( 4 - 7 i ) - ( 6 - 6 i )) = 3 i / ( 4 - 7 i - 6 + 6 i ) =
= 3 i / ( - 2 - i ) = - 3 i / ( 2 + i ) =
= \frac{-3i}{2 + i}* \frac{2 - i}{2 - i}= \\ =   \frac{-6i+3i ^{2} }{2- i^{2} }= \\ = \frac{-3-6i}{2+1}= \frac{-3-6i}{3}=
= - 1 - 2 i

5 0
3 years ago
Find the first six terms of the sequence.<br> a = 1, an = 4.an-1 (7 points)
BlackZzzverrR [31]

Answer:yes

Step-by-step explanation:

5 0
3 years ago
I need help plzzzz!!!!!!!!:)
Mila [183]

Answer:

B: y = -2/3x - 10/3

Step-by-step explanation:

The point is at (-2,-2), therefore when you input -2 into the desired equation, it should yield -2 as our output. If we use the equation B, the equation becomes

-4/3 - 10/3 which is -6/3. After dividing it we get -2 as the output.

To find the line yourself we use the point slope formula

y - y1 = m(x - x1)

The line is parallel to the one on the graph so the slope or <em>m</em> is equal to -2/3

We input the coordinates we want for y1 and x1.

y - (-2) = -2/3 (x - (-2))

y + 2 = -2/3x - 4/3

y + 6/3 = -2/3x - 4/3

y = -2/3x - 10/3

3 0
2 years ago
Read 2 more answers
What is the length of the line segment with endpoints (−3,8) and (7, 8) ? Enter your answer in the box
ki77a [65]
Length = √(y2-y1)² + (x2-x1)²
l = √(8-8)² + (7+3)²
l = √10²
l = 10

In short, Your Answer would be 10 units

Hope this helps!
6 0
3 years ago
Read 2 more answers
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