how can you tell that a website is valid and reliable?
A. Make sure it sounds valid and reliable when you read it?
B. Use the CARS checklist
C. If it is written using scholarly terms, then it must be written by an expert
D. if there are no grammar or spelling errors then it probably is good
Answer: the CORRECT answer is B
Why B?:
The CARS Checklist (Credibility, Accuracy, Reasonableness, Support), created by Dr. Robert Harris, is a system for evaluating the quality of research information.
PLEASEEEE HELPPPP MEEEE
Why do you think that diagnosing a parasite infection can be difficult in some cases?
Answer:
They are difficult to diagnose through route medical tests. A careful analysis of signs and symptoms is far more productive in eliciting the diagnoses verses blood tests. At least through suck signs and symptoms the presumptive diagnosis of parasitic infestations can be made. It all just depends though.
Pls mark brainliest I would really appreciate it
Answer: They are difficult to diagnose through route medical tests. A careful analysis of signs and symptoms is far more productive in eliciting the diagnoses verses blood tests
Help Will give branliest!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
4=-x+2 - model 1.
3x-1=7 - model 2.
-5+2x=3 - model 6.
5+2x=-3 - model 3.
-4=2x+1 - model 5.
-3x+1=7 - model 4.
What is the end behavior of the graph of the polynomial function y = 10x9 – 4x?
o As X-0, y = 0 and as X+0,7-00,
o As X→-0, y = 0 and as X>0, y →--.
As X →-00, y →- and as X>0, y →00
X
As X→-00, y →-00 and as X0, y →-00
y
Answer:
[tex]x \rightarrow + \infty \: \Rightarrow \: y \rightarrow + \infty \\ x \rightarrow - \infty \: \Rightarrow \: y \rightarrow - \infty[/tex]
x → ∞ y → ∞ and as x →- ∞ y → -∞ is the end behavior of the graph of the polynomial function y = 10x⁹ – 4x
What is Graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
The meaning of end behavior is how the function ‘y’ (in this case) moves when x tends towards both ∞ and - ∞.
As x → ∞ y → ∞.
This is apparent from the upward movement of the graph of the function y=10x⁹ –4x
As x →- ∞ y → -∞
This inference is also drawn from the above graph i.e. as x values become more negative the graph of y also travels towards infinity i.e. southward on the LHS of the above graph.
Even though the graph of the function remains flat in between x = -4 to x = 4.
After these points, the graph moves towards infinity exponentially.
Hence, x → ∞ y → ∞ and as x →- ∞ y → -∞ is the end behavior of the graph of the polynomial function y = 10x⁹ – 4x
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An architect makes a scale drawing for a new school building. The door to the school on the scale drawing is 12 inches tall, while the actual door will be 8 feet tall.Question 1Part ABased on the measures of the door, what is the unit rate of feet of school building per inch of the module?Enter the correct answer in the box
Answer:
96
Step-by-step explanation:
Helpppp??? Plzzzz???
1. Find three consecutive interferes whose sum is -30. (Answer choices) A.)-8, -10, -12 B). -11, -12, -13 C.) 11, -10, -9 D.) -8, -9, -10
Find three consecutive even internet’s whose sum is 120
A.) 38, 39, 40
B.) 39, 40, 41
C.) 36, 38, 40
D.) 38, 40 , 42
HELP ASAP
Answer:
] The three consecutive even numbers are 38, 40 and 42. The smallest of the three is clearly 38. Step-by-step explanation:Even numbers are of the form [math]2k[/math], [math] k \in \mathbb{Z}[/math]. Three consecutive even numbers are of the form [math]2k[/math], [math]2(k+1)[/math], [math]2(k+2)[/math]. We have that their sum is 120 therefore [math]\\2k + 2(k+1) + 2(k+2) = 120 \Leftrightarrow k+(k+1)+(k+2) = 60 \Leftrightarrow 3(k+1) = 60 \\ \Leftrightarrow k+1=20 \Leftrightarrow \boxed{k=19}.[/math
why is it important to have a random sample for your data in statistics?
Answer:The simplest random sample allows all the units in the population to have an equal chance of being selected. ... Perhaps the most important benefit to selecting random samples is that it enables the researcher to rely upon assumptions of statistical theory to draw conclusions from what is observed.
Step-by-step explanation:
I will brainless who can answer this all pleaseeeeej
27) A
28) C
29) B
30) T
If one school bus can hold 64 students, what is the least number of buses needed to transport 700 students on a field trip
Which of the following expressions is equivalent to 25÷78?
A
25×78
B
52×78
C
52×87
D
25×87
Answer:
c because there's no answer to the other equation and I already use math for it and it's the answer
Find the values of p and q such that 4x-5-x^2=q-(x+p)^2
Answer:
p = - 2 , q = - 1
Step-by-step explanation:
Rearrange the left side into standard form
- x² + 4x - 5
Factor out - 1 from - x² + 4x
= - (x² - 4x) - 5
Using the method of completing the square
add/subtract ( half the coefficient of the x- term)² tp x² - 4x
= - (x² + 2(- 2)x + 4 - 4) - 5
= - (x - 2)² - (- 4) - 5
= - (x - 2)² + 4 - 5
= - 1 - (x - 2)²
Comparing to q - (x + p)²
with p = - 2 and q = - 1
guys pls help me!!!!!!!
x will be 142 degrees as they are corresponding angles. See the attached image
STEM The average temperature on the planet Neptune is –214 °C. The
temperature on the south pole of Neptune is thought to be 10 °C. Is this
colder or warmer than the average temperature? Write an inequality to
support your answer.
Which is colder??
what is the measure of F?
pleaseeee
Answer:
D
Step-by-step explanation:
The 3 angles in a triangle sum to 180°
Sum the 3 given angles and equate to 180
2x + 3 + 7x - 5 + 3x + 14 = 180 , collect like terms
12x + 12 = 180 ( subtract 12 from both sides )
12x = 168 ( divide both sides by 12 )
x = 14
Then
∠ F = 7x - 5 = 7(14) - 5 = 98 - 5 = 93° → D
how much would I make per year if I get 10 dollars every 2 weeks ?
Answer:
$20,960
Step-by-step explanation:
brainliest?
every 14 days you get payed only 10 dollars?
id say less then 1000
Use the exchange rate £1 = $1.36 to convert $68 into £.
Divide total dollars by the conversion rate:
68/1.36 = 50
Answer: £50
Divide 71/9 2/34
A. 21/4
B. 23/4
C. 41/4
D. 413/16
HELLPPPPPP
Answer:
A 5.25, B 5.75, C 10.25, D 25.8125
Step-by-step explanation:
2. Find the values of x and y. Classify the 135° Angle
Answer:
x = 45 y = 90
solve 7 √ 3 + 2 √ 9 and explain whether the answer is rational or irrational
Answer:
Option D. is correct.
Step-by-step explanation:
Let us assume that x = seven square root three plus two square root nine
i.e. x = 7√3 + 2√9
⇒ x = 7√3 + 2 × 3 {Since 9 = 3²}
⇒ x = 7√3 + 6
Here, 7√3 is an irrational number and 6 is a rational number.
The answer is seven square root of three plus six is irrational because the sum of a rational number and an irrational number is an irrational number.
Therefore, option D. is correct.
The correct answer is 7√3 + 6 is irrational because the sum of a rational number and an irrational number is an irrational number.
What are rational numbers, and irrational numbers?Rational numbers are numbers which can be written in the form of [tex]\dfrac{a}{b}[/tex] where a and b are integers. Example: 1/2, 3.5 (which is writable as 7/5) etc.
Irrational numbers are those real numbers which are not rational numbers.
Assume that x be the seven square root three plus two square root nine ;
i.e. x = 7√3 + 2√9
Now
⇒ x = 7√3 + 2 × 3 {Since 9 = 3²}
x = 7√3 + 6
Here, we can see that 7√3 is an irrational number and 6 is a rational number.
The correct answer is seven square root of three plus six is irrational because the sum of a rational number and an irrational number is an irrational number.
Therefore, option D is correct.
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Six values on the number line above are marked with letters. Match the opposites
A) D and F; C and E
B) D and F; E and G
C) D and F; A and G
D) A and G; E and F
Answer:
C) D and F; A and G
Step-by-step explanation:
Please help me out I really can’t afford failing this test
Answer:
I'm not really sure but I think it's 2
Step-by-step explanation:
So here's what I did;
x³+3x-9=x - 1 +2x
x³+3x - x -2x = 9 - 1
x³= 8
x = ³√8
x = 2
I hope this helps
Look at picture
A+b+cx4
Answer:
15?
Step-by-step explanation:
is a=1 b=2 c=3?? I'm confused
Please help me answer this question. Brainiest to the correct answer with a formal and clear explanation. More questions in 2 mins.
Answer:
101 degrees
Step-by-step explanation
Image result for step of how to find a missing angle
For the exact angle, measure the horizontal run of the roof and its vertical rise. Divide the horizontal measurement by the vertical measurement, which gives you the tangent of the angle you want. Use a trigonometry table to find the angle.
Victoria logged in to work at 8:15 am and logged out at 4:25 pm.
How many hours did she work? (Her employer rounds to the nearest quarter hour.)
7 1/2 hours
7 3/4 hours
8 hours
8 1/4 hours
In total Victoria worked for [tex]8 \frac{1}{4}[/tex] hours. Therefore, option D is the correct answer.
Given that, Victoria logged in to work at 8:15 am and logged out at 4:25 pm.
What is clock?A clock or a timepiece is a device used to measure and indicate time. The clock is one of the oldest human inventions, meeting the need to measure intervals of time shorter than the natural units such as the day, the lunar month and the year.
Victoria logged in to work at 8:15 am
8:15 am →9:15 am →10:15 am→11:15 am→12:15 pm→1:15 pm→2:15 pm→3:15 pm→4:15 pm
8:15 am →9:15 am = 1 hour
9:15 am →10:15 am = 1 hour
10:15 am→11:15 am = 1 hour
11:15 am→12:15 pm = 1 hour
12:15 pm→1:15 pm = 1 hour
1:15 pm→2:15 pm = 1 hour
2:15 pm→3:15 pm = 1 hour
3:15 pm→4:15 pm = 1 hour
So, in total Victoria logged in for 8 hours 10 mins
Its nearest quarter is [tex]8 \frac{1}{4}[/tex] hours
In total Victoria worked for [tex]8 \frac{1}{4}[/tex] hours. Therefore, option D is the correct answer.
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The points (2, 10) and (0, 4) fall on a particular line. What is its equation in slope-intercept form?
Answer:
slope=x^2-x^1/y^2-y^1
this is the formula.
NO BOTS! PLEASE HELP!
Solve the inequality -5/2 (3x-2)<6-2x. For full credit, you will need to show and explain every step. You may add more lines if you need them
Answer: Answer: x> -2/11
Step-by-step explanation: Multiply both sides of the inequality by the least common denominator: 2 (-5/2(3x-2))<2x6-2x2x
Reduce the expression to the lowest term: -5(3x-2)<2 x 6-2 x 2x
Apply Multiplicative Distribution Law: -15x + 10< 2 x 6 -2 x 2x
Multiply the monomials:-15x + 10< 2 x 6 - 4x
Calculate the product or quotient: -15x + 10<12-4x
Rearrange unknown terms to the left side of the equation: -15x + 4x< 12 - 10
Combine like terms: -11x < 12 - 10
Calculate the sum or difference: -11x<2
Divide both sides of the inequality by the coefficient of variable: x > 2 ÷(-11)
Rewrite as fraction: x> 2/-11
Rewrite the fraction: x> -2/11
Answer: x> -2/11
The solution to the inequality is x>-2/11.
The given inequality is -5/2 (3x-2)<6-2x
We need to simplify the given inequality step by step.
How to solve inequality?To solve an inequality, isolate the variable on one side with all other constants on the other side. To accomplish this, perform opposite operations to manipulate the inequality. First, isolate the x by multiplying each side by two. Whatever you do to one side you must also do to the other side.
Now, multiply both sides of the inequality by 2.
That is, -5(3x-2)<2(6-2x)
=-15x+10<12-4x
Add both sides of the inequality by 4x.
That is, -15x+10+4x<12-4x+4x
=-11x+10<12
Subtract 10 on both sides of the inequality.
That is, -11x+10-10<12-10
-11x<2
Divide both sides of the inequality by -11.
x>-2/11
Therefore, the solution to the inequality is x>-2/11.
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Question
Which of the following values are in the range of the function graphed below?
Check all that apply.
A. 2
B. 1
C. O
D. 4
E-4
F. -1
Q16. Find x^2 + 1/x^2 , if x + 1/x = 3
Answer:
[tex] 2 \times x \times \frac{1}{x} = 2 \\ {x}^{2} + {y }^{2} + 2xy = {(x + y)}^{2} \\ {x}^{2} + \frac{1}{ {x}^{2} } + 2 = {(x + \frac{1}{x} })^{2} = {3}^{2} = 9[/tex]
Kelly wants to decrease her daily sugar intake from 40 grams of sugar to 30 grams of sugar. By what percentage does Kelly want to decrease her daily intake of sugar?
10%
⊝
25%
⊝
75%
⊝
90%
Answer:
10% is the answer to this question