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kvasek [131]
3 years ago
15

Solve the inequality -4x - 15 > 5

Mathematics
1 answer:
Alexxx [7]3 years ago
7 0

Answer:

x < - 5

Step-by-step explanation:

Given

- 4x - 15 > 5 ( add 15 to both sides )

- 4x > 20

Divide both sides by - 4, reversing the symbol as a result of dividing by a negative quantity

x < - 5

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What is the product of -3 and 5?
mina [271]

Answer:

2

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
3 ½ x 2/5 *
ki77a [65]

Answer:

Step-by-step explanation:

3\frac{1}{2}=\frac{(3*2)+1}{2}=\frac{7}{2}\\\\\\3\frac{1}{2}*\frac{2}{5}=\frac{7}{2}*\frac{2}{5}=\frac{14}{10}

4 0
3 years ago
Using the formula A = 6s2, solve when s = 2?
rosijanka [135]

Answer:

When s=2, A=24

Step-by-step explanation:

We are given the formula A = 6s^2

We need to solve and find value of A , when s=2

So, putting value of s in the given formula we can find value of A

The formula given is:

A=6s^2\\Put\:s=2\\A=6(2)^2\\A=6(4)\\A=24

So, by putting s= 2, We get A=24

6 0
3 years ago
Smokers: Out of 780 smokers, 376 have been divorced.
beks73 [17]

For statictics of Out of 780 smokers, 376 have been divorced, Non-smokers: Out of 2855 non-smokers, 902 have been divorced, the 95% confidence interval for smokers and non-smokers is mathematically given as

  • 95% confidence interval = (0.5352, 0.4462)
  • 95% confidence interval = (0.3424, 0.2894)
  • 53% increased risk of divorce for smokers.

<h3>What is the 95% confidence interval for smokers and non-smokers?</h3>

Generally, the equation for the Confidence interval is mathematically given as

p ± Z/2[p(1-p)]/n

Where

Z1/2=1-(0.05/2)

Z1/2=0.975

Read z table we have

Z score= 1.96

Hence

0.4907 ± 1.96 (0.4907)(1-0.4907)/485

0.4907±0.0445

Therefore

95% confidence interval = (0.5352, 0.4462)

b)

Z1/2 = 1- (0.05/2)

Z1/2 = 0.975

Z score= 1.96

0.3159 ± 1.96 (0.3159)(1-0.3159)/1184

0.3159±0.0265

Thereofore

95% confidence interval = (0.3424, 0.2894)

c)

In conclusion, The 95% confidence interval helps us read that 53% increased risk of divorce for smokers.

Read more about Confidence interval

brainly.com/question/17097944

4 0
3 years ago
How do u solve this ?
svetoff [14.1K]
Okay, I will give you the building blocks for solving this equation.

Now something you will need to remember is that a triangle will always add up to 180 degrees.

We can use y as that one unknown side in the triangle.

Knowing this, we can say (9x+16) + (6x+15) + y = 180

Then we can combine like terms like so : 15x+31+y = 180

There are two variables though.  So we need more information.

Well, turns out we have the exterior angle of a straight line and the angle measures of a straight line must equal 180.  We can now use (19x+3) + y = 180.

With both of these equations, you can now solve and find both of the angles
6 0
3 years ago
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