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Ivan
3 years ago
9

Which expressions could complete this equation so that it has one solution? 4(4x-3)-6x choose exactly two answers that are corre

ct.
a. 12x-12-2x
b. 9x-12
c. 4x 2(3x-6)
d. 4(2x 3)-24
Mathematics
1 answer:
stepladder [879]3 years ago
7 0
<span> However 4(4x-3) -6x can be replaced by 16x-12 -6x using the distributive law then we may combine like terms to obtain 10x -12. RESPONSE TO UPDATE .. Since you provided the choices in your update, the choices equivalent to 10x -12 are A 12x -12 - 2x and C. 4x + 2(3x-6)</span>
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A pound of rice crackers costs $2.88. Matthew purchased 1/4 pound of crackers. How much did he pay for the crackers.
dlinn [17]
So you know that a pound of rice crackers cost $2.88. You also know that Matthew bought 1/4 or 25% or 0.25 of a pound. This means that by multiplying 0.25 by $2.88, you can determine the cost.

0.25 x 2.88 = $0.72
Therefore, Matthew paid 72 cents or $0.72 for 1/4 pound of rice crackers
7 0
3 years ago
Read 2 more answers
In an effort to improve scores on college-entrance exams, the principal at a large high school chooses 35 students
denpristay [2]

Using the t-distribution, it is found that the test statistic for the hypotheses test is given by:

t = \frac{-1.75 - 0}{\frac{7.12}{\sqrt{35}}}

<h3>What are the hypotheses tested?</h3>

At the null hypotheses, it i tested if the mean difference remains the same, that is:

H_0: \mu  = 0

At the alternative hypotheses, it is tested if it has decreased, hence:

H_a: \mu < 0.

<h3>What is the test statistic?</h3>

The test statistic is given by:

t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}

The parameters are:

  • \overline{x} is the sample mean.
  • \mu is the value tested at the null hypothesis.
  • s is the standard deviation of the sample.
  • n is the sample size.

The parameters are given as follows:

\overline{x} = -1.75, s = 7.12, n = 35.

Hence the test statistic is given by:

t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}

t = \frac{-1.75 - 0}{\frac{7.12}{\sqrt{35}}}

More can be learned about the t-distribution at brainly.com/question/16162795

#SPJ1

5 0
2 years ago
What method most efficient to use to solve x^2+4x+3=0
Alik [6]
My recommendation would be to factor..
x² + 4x + 3 = 0 factor the left side into two binomials
(x + 3)(x + 1) = 0 set each of these binomials equal to zero and solve

x + 3 = 0 Implies x = -3
x + 1 = 0 implies x = -1
6 0
3 years ago
So can anyone help me with #1 and 2 and show work I have no idea what I’m doing
Neporo4naja [7]

Answer:

1.

x = 44*2

<h2>x = 88</h2>

2.

x = 62*2

<h2>x = 124</h2>

3.

x = 108/2

<h2>x = 54</h2>

4.

x = 160/2

<h2>x = 80</h2>

5.

12x = 60*2

12x = 120

x = 120/12

<h2>x = 10</h2>

6.

5x = 50/2

5x = 25

x = 25/5

<h2>x = 5</h2>
3 0
3 years ago
- 21-p-11)<br><br> Giving branliest
posledela

Answer:

-32-p

Step-by-step explanation:

you combine the like terms which would be -21 and -11. that gives you -32 and -p is just by its self since there are no terms to combine it with

6 0
2 years ago
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