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
Georgia [21]
3 years ago
10

PLS HELPP ILL MARK BRAINLIST { have to get it right }

Mathematics
1 answer:
Sonbull [250]3 years ago
6 0

Answer:

=1

=−7

Step-by-step explanation:

(+3)2−5=11

(+3)(+3)−5=11

2+3+3+9−5=11

2+6+9−5=11

x-1=0

x+7=0

You might be interested in
Ibout lt
Vikki [24]
It is 60 times greater because 60 pennies=6 dimes . 6 dimes=60 pennies
Or
10 times greater because 6×10=60 60=6 dimes
8 0
3 years ago
Read 2 more answers
A population has a standard deviation of 5.5. What is the standard error of the sampling distribution if the sample size is 81?
VladimirAG [237]

Answer:

\sigma = 5.5

And we have a sample size of n =81. We want to estimate the standard error of the sampling distribution \bar X and for this case we know that the distribution is given by:

\bar X \sim N(\mu ,\frac{\sigma}{\sqrt{n}})

And the standard error would be:

\sigma_{\bar x}= \frac{\sigma}{\sqrt{n}}

And replacing we got:

\sigma_{\bar x}=\frac{5.5}{\sqrt{81}}= 0.611

Step-by-step explanation:

For this case we know the population deviation given by:

\sigma = 5.5

And we have a sample size of n =81. We want to estimate the standard error of the sampling distribution \bar X and for this case we know that the distribution is given by:

\bar X \sim N(\mu ,\frac{\sigma}{\sqrt{n}})

And the standard error would be:

\sigma_{\bar x}= \frac{\sigma}{\sqrt{n}}

And replacing we got:

\sigma_{\bar x}=\frac{5.5}{\sqrt{81}}= 0.611

4 0
3 years ago
Solve the system by substitution.<br> x – 4y = -8<br> 5у – 1 = x<br> Submit Answer
Vikki [24]

Answer:

y = -7 and x = -36

Step-by-step explanation:

x - 4y = -8

5y - 1 = x

→ Substitute 5y - 1 into x - 4y = -8

5y - 1 - 4y = -8

→ Simplify

y - 1 = -8

→ Add 1 to both sides

y = -7

→ Substitute y = -7 into 5y - 1

( 5 × -7 ) - 1 = -36

7 0
3 years ago
Read 2 more answers
A rectangle has length X +5 and width X +4 if the perimeter of the rectangle is 42 m what are the length and width of the rectan
Maru [420]
The perimeter is 2(length) + 2(width), so 2(x+5) + 2(x+4) = 42 m. In solving for x, you find 6. Plug 6 back into your length and width where x originally was, and you find your length to be 11m, and your width to be 10m. Hope this helps!
6 0
3 years ago
Read 2 more answers
WHICE group of domain-specific words belongs only to math domain
s2008m [1.1K]

Answer:

The major field of anthroplogy and evolutionary and paleo anthropological perspectives on the origin of humankind

6 0
1 year ago
Other questions:
  • It takes Stu, a slimy slug, 20 minutes to travel from his favorite bush to the local trash can (a trip of 30 meters), how far ca
    9·2 answers
  • If f(x) = (1/9)(9^x) what is f(3)
    15·2 answers
  • A right circular cone is intersected by a plane that passes through the cone's vertex and along the edge of each nappe, what is
    13·1 answer
  • Pls answer this with an explanation if you can pt3
    15·1 answer
  • Wich of the following is true abot7*square root of 3
    15·1 answer
  • Write an
    10·1 answer
  • Is the number of hits to a website in a day a discrete random​ variable, a continuous random​ variable, or not a random​ variabl
    10·1 answer
  • Errol collected some figures that he calls sukies. Which figure is a sukie?​
    12·1 answer
  • HELLP anyone know the answer?!
    13·2 answers
  • Prove :<br>sin²θ + cos²θ = 1<br><br><br>thankyou ~​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!