Answer:
causation cannot be determined from a survey
Please help quick! Find the value of x to the nearest tenth.
Answer: 3.3
Step-by-step explanation: pythagorean theorem.
first we'll do the bottom triangle. a^2 + b^2 = c^2
a=3 and b=4
(3)^2 + (4)^2 = 9 + 16 = 25 which = c^2
to find c from c^2, square root the c^2 value. in this case it's 25. the square root of 25 is 5.
5 is now the base of the rectangle
now we can do pythagorean theorem again. except we'll switch it so it's c^2 - b^2 =a^2
c=6 and b=5
(6)^2 - (5)^2 = 36 - 25 = 11 = a^2
to find a we'll square root 11 which is just [tex]\sqrt{11[/tex]. approx. 3.3 to the nearest tenth.
We can use the Pythagorean theorem to solve for x.
But first, we have to find the value of 'a' (as I labelled in the diagram below). We could actually do all this in one step if we set it up correctly.
so x = √(6² - a²)
& a² = 3² + 4²
⇒ x = √[6² - (3² + 4²)]
x = √(11) or ≈ 3.3167
20,612,439 in scientific notation
Write an equation of the line passing through the point (7, 3) that is parallel to the line 4x - 7y=9
Answer:
y = 4/7x - 1
Step-by-step explanation:
7y = 4x - 9
y = 4/7x - 9/7
3 = 4/7(7) + b
3 = 4 + b
b = -1
Write an expression that represents the perimeter.
Simplify your perimeter expression as much as possible.
a.
X
у
X
a
b
8x + 4y + 4
2x + y +2
4x + 2y + 6
с
Please, please help!!
Emerson purchased a game that was on sale for 18% off. The sales tax in his county is 8%. Let y represent the original price of the game. Write an expression that can be used to determine the final cost of the game.
Using decimal multipliers, it is found that the expression that can be used to determine the final cost of the game is given by:
[tex]C = 0.8856y[/tex]Decimal multipliers:The equivalent multiplier for an increase of a% is given by: [tex]\frac{100 + a}{100}[/tex]The equivalent multiplier for an decrease of a% is given by: [tex]\frac{100 - a}{100}[/tex]In this problem:
Purchase for 18% off, hence decrease of 18%, that is, [tex]\frac{100 - 18}{100} = 0.82[/tex].Sales tax of 8%, hence, an increase of 8%, that is, [tex]\frac{100 + 8}{100} = 1.08[/tex].Applying both multipliers, the expression is:
[tex]C = y(0.82)(1.08) = 0.8856y[/tex]
To learn more about decimal multipliers, you can take a look at https://brainly.com/question/19808269
what number will get you 21.51
Answer:
10.755
Step-by-step explanation:
10.755+10.755=21.51
Answer:
Step-by-step explanation:
a few examples
21 + 0.51
22 - 0.49
10.75 × 2
4.637^2
43.02 ÷ 2
etc....
I need someone to explain to me how to solve this, because I need to show my work.
Which of the following is equivalent to 8 1/2 ?
Answer:
1 5/8 is equal to 13/8
Step-by-step explanation:
Someone please help me will mark brainliest !
Answer:
0 10
1 20
Step-by-step explanation:
0,0
1,20
2,40
3,50
4 60
Miguel runs 5 miles in 38 minutes. At the same rate, how many miles would he run in 57 minutes?
7,5 miles
Step-by-step explanation:
5/x = 38/57
38x = 5 × 57
38x = 285
x = 285/38
x = 7,5 miles
HELPPP THIS IS DUE SOON...actually its late BUT STILL HELP
Answer: 100 99/100
Step-by-step explanation: add the 1/2 and 1/5 together by finding a common denominator(10). 1/2 would become 5/10 and 1/5 would become 2/10. 2/10 + 5/10 =7/10. now we're left with (7/10)^2 +3/10 x 5
to do (7/10)^2 you square the top and bottom to give you 49/100.
next we'll do 3/10 x 5 which would equal 15/10. so now all we have left to do is add 49/100 and 15/10. to do this we'll find a common denominator of 100. so well multiply the top and bottom by 10 to give you 150/100.
finally, 49/100 + 150/100 = 199/100 or as a mixed number, 100 99/100
Answer:
1[tex]\frac{99}{100}[/tex]
Step-by-step explanation:
I would start by turning the parentheses fractions into one fraction.
You could do binomial multiplication and get [tex]a^{2} +2ab+b^{2}[/tex] but it might take longer.
So I would just turn them into one fraction by finding the common denominator.
The common denominator here is 10
[tex]\frac{1}{5} (\frac{2}{2} )=\frac{2}{10}[/tex]
[tex]\frac{1}{2} (\frac{5}{5} )=\frac{5}{10}[/tex]
Now add
[tex]\frac{2}{10} +\frac{5}{10} =\frac{7}{10}[/tex]
Now apply: [tex](\frac{a}{b} )^{2} =\frac{a^{2} }{b^{2} }[/tex]
[tex](\frac{7}{10} )^{2} =\frac{7^{2} }{10^{2} } =\frac{49}{100}[/tex]
Now, multiplying the other fraction we get [tex]\frac{3}{10} (5)=\frac{15}{10}[/tex]
Now turn this into a fraction with denominator 100 to add the two fractions
[tex]\frac{15}{10} (\frac{10}{10} )=\frac{150}{100}[/tex]
[tex]\frac{49}{100} +\frac{150}{100} =\frac{199}{100} =1\frac{99}{100}[/tex]
There is also another method to add or subtract fractions without multiplying to get a common denominator in case you are interested:
[tex]\frac{a}{b}[/tex]±[tex]\frac{c}{d}[/tex]=[tex]\frac{ad+bc}{bd}[/tex]
What would be the answer to the math equation e-mc2
(It is a subtraction sign) :)
[tex]e−mc {}^{2} [/tex]
Use the commutative property to reorder the terms[tex]e - {c}^{2} m[/tex]
Please Help?
If X = 5, what is the value of -2X + 2 + 5X + 8?
-2X + 2 + 5X + 8?
-2(5) + 2 + 5(5) + 8
-10 + 2 + 25 + 8
25
Answer: 25
Answer:
The answer would be 25.
Step-by-step explanation:
If x=5, that means:
-2(5)+2+5(5)+8
-10+2+25+8
-8+25+8
-17+8
25
Therefore, the value would be 25.
Hope this helps!!
HELP PLEASE
Which lines are perpendicular to the line y – 1 =1/3(x+2)
y + 2 = –3(x – 4)
y − 5 = 3(x + 11)
y = -3x – Five-thirds
y = One-thirdx – 2
3x + y = 7
Answer:
Answer should be a.
Step-by-step explanation:
You have $190 to buy 8 model trains for
your train collection. Write and solve an
inequality that represents the prices you
can pay per train.
Answer:
8x; x ≤ $23.75
Step-by-step explanation:
You have to buy 8 trains with 190 dollars. You can't use more money or have more trains.
8x ≤ 190
Divide by 8 on both sides.
x ≤ $23.75 per train
Your welcome!
Kayden Kohl
8th Grade Student
write the equation of the line that is parallel to y=2x+1
Answer:
y = 2x, y = 2x+2, y=2x+100, y=2x-57, etc.
Step-by-step explanation:
Any line with the same slope will be parallel.
The diagonal of a rectangle is 25in. The width is 15 in. What is the area of the rectangle
Answer:
10
Step-by-step explanation:
Question: Expand 4(4k + 9)
Answer:
16k + 36
Step-by-step explanation:
4(4k + 9)
(multiply everything in the bracket by 4 because that's whats surrounding the bracket)
4k * 4 + 9 * 4
16k + 36
−5(10) Helpppp please
Step-by-step explanation:
I will help you if you follow me
Answer:
-50
Step-by-step explanation:
all you do is -5 times 10
If I could get help
Answer:
4m, 6m, 7m, 5m
Step-by-step explanation:
To find perimeter you just add the side lengths togeather.
1+19
Who Knows This Answer? :O
Answer:
20
Step-by-step explanation:
nah it might be 21
Obviously its 21 pfff
Evaluate using the order of operations. Enter the answer in simplest form. 15 × 3/8 + 5/8
Answer:
6.25
Step-by-step explanation:
i looked it up
Answer:
13 1/8
#I'mSoSmart
#LOL
*SSQ*
find the missing angle B
a) 50+b=180 (supplementary angles)
b=180-50
b=130
b) b= 43° { vertically opposite angle}
I will brainlist who can answer this 3 Questions!
Answer: 20. A 21. C 22. B
Step-by-step explanation: image attached below for explanation
what is the meaning of division
Answer:
the action of separating something into parts or the process of being separated.
"the division of the land into small fields"
Step-by-step explanation:
Hope this helps you if it does please mark brainliest
Step-by-step explanation:
the act of separating something into parts.
The area of the rectangle shown is 73 sq. Feet. Which equation can be used to find “x”.
A) 6x + 9 = 73
B) 2x + 18 = 73
C) 6x + 3 = 73
D) 6x + 18 = 73
Answer:
6x+18=73
Step-by-step explanation:
Rectangle area w*l
(x+3)*6=73
6x+18=73
Graph the line that passes through the points (-5, 3) and (−1,−1) and determine the equation of the line.
A line can be drawn by joining the plot of the two given points
Please find attached the graph of the line created with MS ExcelThe equation of the line is y = -x - 2Reason:
Given points on the line are (-5, 3) and (-1, -1)
From the given points, the graph of the line can be plotted with MS ExcelThe slope, m, of the line is given as follows
[tex]Slope, \, m =\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
Therefore, we have;
[tex]Slope, \, m =\dfrac{-1 - 3}{-1 - (-5)} = \dfrac{-4}{4} = -1[/tex]
The equation of the line in point and slope form is therefore;
y - 3 = -1·(x - (-5) = -x - 5
In slope and intercept form, we have;
y = -x - 5 + 3 = -x - 2
The equation of the line in slope and intercept form is y = -x - 2Learn more here:
https://brainly.com/question/2088114
PLEASE HELP!!! I GIVE TON OF POINTS!!! THANKSSS!! IM GIVING 20 POINTS FOR THIS PROBLEM!!!
On a bicycle, Wendy rides for 4 hours and is 42 miles from her house. After riding for 12 hours, she is 122 miles away. What is Wendy's rate in MPH??
Answer: 10.2 mph
Step-by-step explanation:
total runtime of the bike trip: 4hrs, 42 mi total
12 hrs has her 122 mi from home
our rate can be found by taking the miles and dividing it by the hours:
122/12 = 10.2
Marilyn's cell phone company charges $35 a month for phone service plus $0.50 for each text message. How many text messages does Marilyn send in a month if her bill was $52
Answer:
34
Step-by-step explanation:
52-35 = 17
$17 divided by $0.50 = 34 texst messages
You use a garden hose to fill a wading pool. If the water level rises 13 centimeters every 5 minutes and you record the data point of (10,y), what is the value of y? Use slope to justify your answer.