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AleksandrR [38]
3 years ago
7

What is the missing number?

Mathematics
1 answer:
ahrayia [7]3 years ago
5 0
20 is the answer for example 2x35 + 20 = 90
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9. Consider the function f(x) = x² + 3x – 4.
BaLLatris [955]

Answer:

  c.  f(x) = (x + 4)(x - 1)

Step-by-step explanation:

Since you're familiar with the product of two binomials:

  (x +a)(x +b) = x² + (a+b)x + ab

you know that the constants in the binomial factors must ...

  • have a product of -4
  • have a sum of +3

__

All of the choices except B have binomial constants that have a product of -4.

In order, the sums of the remaining choices are ...

  A: 1-4 = -3

  C: 4-1 = 3 . . . . this is the correct choice

  D: -2+2 = 0

6 0
3 years ago
Graph. y−2=2/3(x+4) Use the Line Tool and select two points to graph the equation. Use the slope and the point provided in the e
Darya [45]
Based on the equation, the coordinate point is (-4, 2). It is -4 because in the original equation, it's -x_{1}, but because it's positive, that must mean it was originally a negative. Why? Because a negative times an negative equals a positive.

Now, let's convert this to Slope-Intercept Form.

y - 2 = 2/3(x + 4)
y - 2 = 2/3x + 8/3
Add 2 to both sides.
y = 2/3x + 14/3

The slope of the line is 2/3 and the original point was (-4, 2).

6 0
3 years ago
Write all the prime numbers between 10 and 30.​
insens350 [35]
It's 11, 13, 17, 19, 23 and 29.
5 0
3 years ago
Question 2(Multiple Choice Worth 5 points) (04.05)Marcus painted one-third of his bedroom in fourth-fifths of an hour. At this r
Yuri [45]

Answer: Twelve fifth of an Hour

Step-by-step explanation: a whole is represented by 1

1/3=4/5hours

Whole room 1 =4/5 ÷ 1/3

=4/5×3/1

=4×3/5

=12/5

That's twelve fifth of an hour

4 0
4 years ago
Subject: Mathematics
lina2011 [118]

\\ \sf\longmapsto \dfrac{1}{x-1}>4

  • Multiply x-1 on both sides

\\ \sf\longmapsto \dfrac{1}{x-1}\times (x-1)> 4(x-1)

\\ \sf\longmapsto 1>4(x-1)

\\ \sf\longmapsto 1> 4x-4

  • Add 4 on both sides

\\ \sf\longmapsto 1+4> 4x

\\ \sf\longmapsto 5> 4x

  • Divide both sides by 4

\\ \sf\longmapsto \dfrac{5}{4}>x

\\ \sf\longmapsto x< \dfrac{5}{4}

Now

ATQ to the equation \bf \dfrac{1}{x-1} x should be greater than 1 .Because if it becomes 1 then the denominator will be 0 which is impossible.

Hence x>1

Thus

\\ \sf{:}\!\implies 1

Now

\\ \therefore\boxed{\bf x\epsilon \left(1,\dfrac{5}{4}\right)}

6 0
3 years ago
Read 2 more answers
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