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
elena55 [62]
3 years ago
15

Simplify 8 - {x - (5 + x)}

Mathematics
2 answers:
SCORPION-xisa [38]3 years ago
5 0
<span>−<span>8<span>(<span>x−<span>(<span>5+x</span>)</span></span>)</span></span></span><span>=<span><span>(<span>−8</span>)</span><span>(<span><span>x+<span>−5</span></span>+<span>−x</span></span>)</span></span></span><span>=<span><span><span><span>(<span>−8</span>)</span><span>(x)</span></span>+<span><span>(<span>−8</span>)</span><span>(<span>−5</span>)</span></span></span>+<span><span>(<span>−8</span>)</span><span>(<span>−x</span>)</span></span></span></span><span>=<span><span><span>−<span>8x</span></span>+40</span>+<span>8x</span></span></span><span>=<span>40</span></span>
Masteriza [31]3 years ago
3 0
8 - {x - (5 + x)}
= 8 - {x - 5 - x}
= 8 + 5
= 13
You might be interested in
A study was done that looked at how much red meat people consumed and how long they lived. The correlation r was found to be 0.9
AVprozaik [17]

Answer:

False

Step-by-step explanation:

Since the correlation r was found to be 0.98 (a value closer to 1).  

Let X =how much red meat people consumed

let Y = how long they lived.

where the x-values are the values of the deviations of co-ordinates X from Xₙ, their mean value and the y-values are the values of the deviations of co-ordinates Y from Yₙ, their mean value.

That is, x=(X−Xₙ) and y=(Y−Yₙ).

The results of this determination give values of r lying between +1 and −1, where;

+1 indicates perfect direct  correlation,

−1 indicates perfect inverse correlation and

0 indicates that no correlation exists.

Between these values, the smaller the value of r, the less is the amount of correlation which exists.

Generally, values of r in the ranges 0.7 to 1 and −0.7 to −1 show that a fair amount of correlation exists.

therefore, it can be seen that there is a perfect relationship between the quantity eaten and how long the person live

But, the correlation does not consider those that does not consume meat, and it is very hard to determined the answer to the question.

the answer is false because there are other reasons that determined longevity of life apart from meat consumption.

3 0
3 years ago
Solve this equation -k/5=7/10
liberstina [14]
-\dfrac{k}{5}=\dfrac{7}{10}\\&#10;-10k=35\\&#10;k=-3.5
4 0
3 years ago
Which expression illustrates the associative property of addition? (3 19) – 12 = (3 12) – 19 3 (19 – 12) = 3 (19 12) (3 19) – 12
Gre4nikov [31]

Answer:

Associative Property

For multiplication, the rule is "a(bc) = (ab)c"; in numbers, this means 2(3×4) = (2×3)4.

5 0
2 years ago
A new centrifugal pump is being considered for an application involving the pumping of ammonia. The specification is that the fl
ollegr [7]

Answer:

from the t-distribution table, at df = 7 and t = 2.23

Lies p-values [ 0.05 and 0.025 ]

Hence;

0.025 < p-value < 0.05

Step-by-step explanation:

Given that;

x^{bar} = 6.5 gpm

μ = 5 gpm

n = eight runs = 8

standard deviation σ = 1.9 gpm

Test statistics;

t = (x^{bar} - μ) / \frac{s}{\sqrt{n} }

we substitute

t = (6.5 - 5) / \frac{1.9}{\sqrt{8} }

t = 1.5 / 0.67175

t = 2.23

the degree of freedom df = n-1 = 8 - 1

df = 7

Now, from the t-distribution table, at df = 7 and t = 2.23

Lies p-values [ 0.05 and 0.025 ]

Hence;

0.025 < p-value < 0.05

3 0
3 years ago
If a triangle has a hypotenuse of 30 inches and one side is 24 inches, what is the length of the missing side?
Mekhanik [1.2K]

Answer:

0078

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Solving a word problem with two unknown using a linear equation
    15·1 answer
  • Convert this number expressed in standard form to scientific notation
    14·1 answer
  • 130% of the sum of 7 and a number n is equal to 91.
    7·2 answers
  • Let X, the number of flaws on the surface of a randomly selected boiler of a certain type, have a Poisson distribution with para
    11·1 answer
  • Find the measure of angle x in the figure below:<br><br> 35°<br> 47°<br> 73°<br> 78°
    14·2 answers
  • What kind of #are real numbers?
    5·2 answers
  • A savings account for a car is set up with an initial balance of $2500, and $100 is added every month
    5·1 answer
  • What is the slope of the line that passes through the points (-6, 4) and (-6, 8)?
    8·1 answer
  • PLEASEE HELP IM BEGGING YOU
    9·2 answers
  • Hiii! Good morning and I hope you are ok! Please help me here though!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!