1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kolezko [41]
3 years ago
9

Solve and graph the inequality. −x4−6≥−8 {"version":"1.1","math":"-x4-6≥-8"} Question 6 options: x ≤ 8 x < –4 x > 8 x ≥ –8

Mathematics
2 answers:
anastassius [24]3 years ago
4 0

Answer:

x \geq  -4

Step-by-step explanation:

The given inequality is

-x(4-6) \geq -8

To solve this inequality, we just have to isolate x

-x(-2) \geq -8

2x\geq -8\\x\geq \frac{-8}{2}\\ x\geq -4

Therefore, the solutions for this inequality is x \geq  -4.

If we graph this inequality, the solution would be like the image attached.

gtnhenbr [62]3 years ago
4 0
Answer: <span>x < –4
</span>
The question is a bit ambiguous since x4 can be interpreted as x^4. Since there was no option for <span>−x^4−6≥−8 , </span> I will solve the question assuming that the original question was −x(4−6)≥−8 


<span>−x(4−6)≥−8 
</span>−x(-2)≥−8 
2x≥−8 
x≥−4 
You might be interested in
Find the axis of the graph of the function..f(x) = 4x2 + 8x + 7
SpyIntel [72]
F ( x ) = 4 x² + 8 x + 7
a = 4,  b = 8
The axis formula is:
x = - b / 2 a
x = - 8 / (2*4) = - 8 / 8 = -1
Answer:
The axis of the graph of the function is x = - 1.
7 0
3 years ago
Solve for z.<br> -4z+1 = bz+c
blagie [28]

Answer:

\large\boxed{z=\dfrac{1-c}{4+b}}

Step-by-step explanation:

-4z+1=bz+c\qquad\text{subtract 1 from both sides}\\\\-4z=bz+c-1\qquad\text{subtract}\ bz\ \text{from both sides}\\\\-4z-bz=c-1\qquad\text{change the signs}\\\\4z+bz=1-c\qquad\text{distribute}\\\\(4+b)z=1-c\qquad\text{divide both sides by}\ (4+b)\neq0\\\\z=\dfrac{1-c}{4+b}

3 0
2 years ago
HELP PLZZZZZZZ STANDARD FORM
liraira [26]

Answer:

-12n^{2} + 12

Step-by-step explanation:

h(n) = -4n + 4           (h o g) (n)

g(n) =  3n^{2} - 2

-4(3n^{2} - 2) + 4

-12n^{2} + 8 + 4

-12n^{2} + 12

7 0
2 years ago
Determine which numbers are solutions for x&gt;7 from the solution set<br> of { 7,8,9}
Vitek1552 [10]

Answer:

8, 9

Step-by-step explanation:

Since x > 7

This means that x cannot equal 7 but must be greater values than 7.

Thus 8 and 9 are solutions

8 0
3 years ago
In the past decades there have been intensive antismoking campaigns sponsored by both federal and private agencies. In one study
DIA [1.3K]

Answer:

z=\frac{0.384-0.362}{\sqrt{0.374(1-0.374)(\frac{1}{4276}+\frac{1}{3908})}}=2.055    

The p value can be calculated from the alternative hypothesis with this probability:

p_v =2*P(Z>2.055)=0.0399    

And the best option for this case would be:

C. between 0.01 and 0.05.

Step-by-step explanation:

Information provided

X_{1}=1642 represent the number of smokers from the sample in 1995

X_{2}=1415 represent the number of smokers from the sample in 2010

n_{1}=4276 sample from 1995

n_{2}=3908 sample from 2010  

p_{1}=\frac{1642}{4276}=0.384 represent the proportion of smokers from the sample in 1995

p_{2}=\frac{1415}{3908}=0.362 represent the proportion of smokers from the sample in 2010

\hat p represent the pooled estimate of p

z would represent the statistic    

p_v represent the value for the pvalue

System of hypothesis

We want to test the equality of the proportion of smokers and the system of hypothesis are:    

Null hypothesis:p_{1} = p_{2}    

Alternative hypothesis:p_{1} \neq p_{2}    

The statistic is given by:

z=\frac{p_{1}-p_{2}}{\sqrt{\hat p (1-\hat p)(\frac{1}{n_{1}}+\frac{1}{n_{2}})}}   (1)  

Where \hat p=\frac{X_{1}+X_{2}}{n_{1}+n_{2}}=\frac{1642+1415}{4276+3908}=0.374  

Replacing the info given we got:

z=\frac{0.384-0.362}{\sqrt{0.374(1-0.374)(\frac{1}{4276}+\frac{1}{3908})}}=2.055    

The p value can be calculated from the alternative hypothesis with this probability:

p_v =2*P(Z>2.055)=0.0399    

And the best option for this case would be:

C. between 0.01 and 0.05.

7 0
3 years ago
Other questions:
  • <img src="https://tex.z-dn.net/?f=%20x%5E%7B2%7D%20%20%5Cleft%20%5C%7B%20%7B%7By%3D2%7D%20%5Catop%20%7Bx%3D2%7D%7D%20%5Cright.%2
    6·1 answer
  • Slope of -3 and y intercept of 2
    9·1 answer
  • <img src="https://tex.z-dn.net/?f=%2825x%20%2B%204%20%7Bx%7D%5E%7B2%7D%29%20%5Ctimes%20%2836%20%7By%7D%5E%7B3%7D%20%29" id="TexF
    6·1 answer
  • The midpoint of segment AB is (3,5). What are the
    15·1 answer
  • Which equations have the same solution? choose all answers that are correct.
    8·2 answers
  • Complete the solution of the equation. Find the
    10·1 answer
  • What is 1.3 repeating as a fraction
    7·2 answers
  • I don't understand this at all TwT
    7·1 answer
  • Find the radius of Circle G Below. Round your answer to the nearest hundredth.
    9·1 answer
  • Suppose there are 3 concerts at this hall next week, and the total attendance will be 5,500. Use a percent expression to predict
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!