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valina [46]
3 years ago
12

(x + 5)(x - 4) > 0?​

Mathematics
1 answer:
tankabanditka [31]3 years ago
6 0

Answer:

Step-by-step explanation:

(x+5)(x-4)>0  

What kind of answer does your teacher want?

One way to answer this is

x<-5 or x>4  or (-∞,-5)∪(4,∞)

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If a=3, b=5, and c=2, what is a²c²+2(b+c)÷b
finlep [7]
38.8 is the answer. Using pemdas you should find work leading to that
4 0
3 years ago
X=3y + 1<br> 2x + 4y =12
Alika [10]

Answer:

the solution is (4, 1).

Step-by-step explanation:

The goal here is to "solve this system of linear equations."  You need to share that along with the equations.

We can begin the solution by substituting 3y + 1 for x in the second equation:

2(3y + 1) + 4y = 12

Performing the multiplication, we get 6y + 2 + 4y = 12, or 10y = 10.

Then y must be 1.

Substituting 1 for y in the first equation, we get x = 3(1) + 1 = 4

Thus, the solution is (4, 1).

4 0
3 years ago
College alcohol and drug use: In a Washington Post/Kaiser Family Foundation poll conducted from January through March 2015, 56%
jolli1 [7]

Answer:

d. We are 95% confident that the proportion of adults (ages 17-26) who attended college is between 53% and 59%.

Step-by-step explanation:

Confidence interval of a proportion p.

We build a confidence interval at the x% level from a sample.

With this, we can say that we are x% sure that the true population propotion is in the interval.

The 95% confidence interval is (0.53, 0.59).

This means that we are 95% sure that the true population proportion is between 0.53 and 0.59.

So the correct answer is:

d. We are 95% confident that the proportion of adults (ages 17-26) who attended college is between 53% and 59%.

7 0
3 years ago
A taxi charges a flat rate of $4.00 plus $2.25 per mile. How much will it cost to travel 8.7 miles?
aliya0001 [1]
$4.00 + $2.25* number of miles
$4.00 + $2.25* 8.7= $23.58

6 0
3 years ago
Read 2 more answers
What does the 6/8 simplify to
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6/8 simplifies to 3/4. Divide both numbers by 2 and you can then simplify.
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3 years ago
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