Answer:
-82.9675 is the mean
Step-by-step explanation:
Hope this helps :) and if it doesn't I am sorry for disappointing you :(
Find the value of xx, yy, and zz in the rhombus below.
Answer:
Step-by-step explanation:
Opposite angles of a rhombus are congruent, so [tex]6x+8=86 \longrightarrow x=13[/tex]
Also, adjacent angles of a rhombus are supplementary, so [tex]86+5z+4=86+7y+3=180 \longrightarrow y=13, z=18[/tex]
Mary and Vincent climbed up a rock wall at the park, Mary climbed 3/4 the way up the wall, Vincent climbed 3/8 of the way up the wall, who climbed higher
Answer:
Mary
Step-by-step explanation:
You have to change the fractions so that the denominator is the same in both of them. To do this, you can multiply the numerator and denominator in 3/4 by 2. This would equal 6/8.
6/8 > 3/8
This shows that Mary climbed higher.
Tyler has to figure out the amount of metal to cover the back of the shelves in Mrs. Edwards room. These are the dimensions. What is the amount of metal he will need to cover the back of the shelves?
210 square inches
108 square inches
180 square inches
36 square inches
The amount of metal he will need to cover the back of the shelves is 180 inches².
The figure above is like a composite figure. Therefore, lets find the area.
Area of the composite figureThe area of the figure is the sum of the whole individual 2 dimensional shapes in the composite figure.
Therefore, two rectangles can be drawn from it.
area of rectangle = lw
where
l = length
w = width
Therefore,
area of rectangle 1 = 9 × 8 = 72 inches²
area of rectangle 2 = 6 × 18 = 108 inches²
Total area = 108 + 72 = 180 inches²
Therefore, the amount of metal he will need to cover the back of the shelves is 180 inches².
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Please help me! 15 points for answering
Answer:
This statement is not true. (Alternate Interior Angles Theorem)
Step-by-step explanation:
<6 and <3 are both interior angles, meaning that they are on the interior of two transversals. They are also alternating the transversal, so they are alternate interior angles. The Alternate Interior Angles Theorem states that if a transversal crosses the set of parallel lines, the alternate interior angles are congruent. This means that <6 and <3 would be congruent to one another, so they would have to measure the exact same degree. Hope this helps! :)
help pls
In a class of 30 students,10% of the students are male. How many female students are in class.
Step-by-step explanation:
total student in the class = 30
10% are male students
[tex] = \frac{10}{100} \times 30[/tex]
= 3 male students
therefore female students = total students - male students
= 30 – 3 = 27 female students
if this helped pls give brainliest
What is the standard form of 70,000 + 6,000 + 800 + 60 + 2?
Answer:
76,862
Step-by-step explanation:
1. You can add all of them together or...
2. Put them in a place value chart
We will do 1. 70000+6000=76000+800=76800+60=76860+2=76862
what is the lcm 10,8,4
Answer:
40 is the LCM of 10,8 and 4
Answer:
40 is the least common multiple
Step-by-step explanation:
Add. Write your answer in simplest form. 50 points plllls X infinite help me
3/8+2/5
Answer:
31/40
Step-by-step explanation:
Find the common denominator
15/40 + 16/40 = 31/40
Let me know if this helped. Brainliest is appreicated <3
Directions: Solve each problem. Show how you found each answer.
1. Hannah decided to curl up and read a good book. She started reading at 10:00 a.m. and finished reading at 11:43 a.m. How much time did she spend reading?
1 hour and 43 minutes
if ten to 11 is 1 hr, there is 43 mins left over so the answer is 1 hr 43 mins
so from 10 am to 11 am would 60 minutes (1 hour) and from 11 am hannah spent 43 additional minutes because the finish time reads 11:43 (where the numbers after the ":" sign are minutes) we add the 60 minutes with 43 to get 103 minutes or 1 hour and 43 minutes.
Solve for m
4(1 + 0.5m) = 7m
Answer:
[tex]m=\frac{4}{5}[/tex]
Step-by-step explanation:
Expand 4(1+0.5m): 4+2m
[tex]4\left(1+0.5m\right)[/tex]
[tex]a=4,\:b=1,\:c=0.5m[/tex]
[tex]=4\cdot \:1+4\cdot \:0.5m[/tex]
Simplify 4*1+4*0.5m: 4+2m
[tex]4\cdot \:1+4\cdot \:0.5m[/tex]
[tex]\mathrm{Multiply\:the\:numbers:}\:4\cdot \:1=4[/tex]
[tex]=4+4\cdot \:0.5m[/tex]
[tex]\mathrm{Multiply\:the\:numbers:}\:4\cdot \:0.5=2[/tex]
[tex]=4+2m[/tex]
[tex]4+2m=7m[/tex]
[tex]\mathrm{Subtract\:}4\mathrm{\:from\:both\:sides}[/tex]
[tex]4+2m-4=7m-4[/tex]
[tex]\mathrm{Simplify}[/tex]
[tex]2m=7m-4[/tex]
[tex]\mathrm{Subtract\:}7m\mathrm{\:from\:both\:sides}[/tex]
[tex]2m-7m=7m-4-7m[/tex]
[tex]\mathrm{Simplify}[/tex]
[tex]-5m=-4[/tex]
[tex]\mathrm{Divide\:both\:sides\:by\:}-5[/tex]
[tex]\frac{-5m}{-5}=\frac{-4}{-5}[/tex]
[tex]\mathrm{Simplify}[/tex]
[tex]m=\frac{4}{5}[/tex]
A company that manufacturers coffee for use in commercial machines monitors the caffeine content in its coffee. The company selects 50 samples of coffee every hour from its production line and determines the caffeine content. From historical data, the caffeine content (in milligrams, mg) is known to have a normal distribution with σ = 7.1 n. During a 1-hour time period, the 50 samples yielded a mean caffeine content of y = 110 mg.
a. Identify the population about which inferences can be made from the sample data.
b. Calculate a 95% confidence interval for the mean caffeine content μ of the coffee produced during the hour in which the 50 samples were selected.
c. Explain to the CEO of the company in nonstatistical language the interpretation of the constructed confidence interval.
Reuben runs 5 miles in 30 minutes. How many miles does he run per minute?
"four more than the value of x is at least eight", and solve for x.
Answer:
X >= 5
Step-by-step explanation:
8 - 4 = 4
So X can be any number greater than or equal to 5.
Hope this helps - have a nice day! :)
A building company completes 42 homes every two months at this right how many homes can become the company complete in six months
Answer:
126
Step-by-step explanation:
42 homes = 2 months
multiply 3 both sides
126 homes = 6 months (if it is the same rate)
4. What is the range in the number of pages Phil read on these days?
F 15 pages
G 20 pages
H 30 pages
40 pages
(PLS ANSWER ASAP)
Franklin treated his sister to lunch while visiting her in Ashland. Their lunch cost $75 and the sales tax in Ashland is 8%. If Franklin left a 20% tip on the 75$ how much in total did he pay
Answer: $97.2
Step-by-step explanation: 75+8%/100=81+20%/100=97.2
If their lunch costs $75 and the sales tax in Ashland is 8%. If Franklin left a 20% tip on the 75$. He will totally pay $ 97.2.
What is the percentage?It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.
The usage of percentages is widespread and diverse. For instance, numerous data in the media, bank interest rates, retail discounts, and inflation rates are all reported as percentages. For comprehending the financial elements of daily life, percentages are crucial.
It is given that, Franklin treated his sister to lunch while visiting her in Ashland. Their lunch costs $75 and the sales tax in Ashland is 8%. If Franklin left a 20% tip on the 75$.
We have to apply arithmetic operations in which we do the addition of numbers, subtraction, multiplication, and division. It has basic four operators that are +, -, ×, and ÷.
If their lunch costs $75 and the sales tax in Ashland is 8%.
= 75+8% of 75
=75+(8/100)×75
=81
If Franklin left a 20% tip on the 75$
=81+20% of 81
=$ 97.2
Thus, if their lunch costs $75 and the sales tax in Ashland is 8%. If Franklin left a 20% tip on the 75$. He will totally pay $ 97.2.
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I have no idea how to go about this question, how would I do it?
Answer:
30 cm
Step-by-step explanation:
18x1.66666667=30
Hope this helps :)
algebra fraction thing!!! pls explain I'm so lost??? like I don't see why the answer isn't 2n-2? did my teacher make a mistake or am I missing something?
Answer:
a.
Step-by-step explanation:
[tex] \frac{n - 9}{2n - 5} + \frac{3n - 1}{2n - 5} [/tex]
Since the denomaitor is the same, just add straight across.
[tex] \frac{4n - 10}{2n - 5} [/tex]
The numerator can be factored.
The greater common factor is 2 so we have
[tex] \frac{2(2n - 5)}{2n - 5} [/tex]
Notice that the numerator and denomiator are the same.
This means they will divide out to 1 so we have
[tex]2[/tex]
The length of a rectangle is 14.5 in and the width is 3.2 in. What is its areA
Answer:
46.4 in ^2
Step-by-step explanation:
We know the area of a rectangle is found by
A = l*w where l is the length and w is the width
A = 14.5 * 3.2
A = 46.4 in ^2
what is the ratio for 500m:250cm
Answer:
1:4
Step-by-step explanation:
Answer:
500m : 250cm can simplify to;
2m : 1cm
The square root of the sum of a number and 12 is 9. Find the number.
Answer:
The answer is 12.4641016151
Step-by-step explanation:
Trust me, I did this on a test before
Answer:
The number is 69.
Step-by-step explanation:
[tex]\sqrt{(x+12)} =9[/tex]
Square both sides.
[tex]x+12=81[/tex]
Solve for x. Subtract 12 from both sides.
[tex]x=81-12\\x=69[/tex]
Check.
[tex]\sqrt{(69+12)} =9\\\sqrt{81} =9[/tex]
What is the product of 46 and 7.7 \times 10^57.7×10
5
expressed in scientific notation?
Answer:
354.2
Step-by-step explanation:
Help me with factoring
What would be the best first step in solving this system?
x^2-x+3y=5
x=2y-1
A. Isolate y in the second equation
B. Substitute for x in the first equation
C. Isolate x in the first equation
D. Substitute for y in the second equation
Answer:
B. Substitute for x in the first equation
Step-by-step explanation:
The solution to a system of equations in which one is quadratic and the other is linear will necessarily involve solving a quadratic equation. Generally, we want to arrive at that quadratic as early as possible in the solution process.
Here, we have a linear expression for x, so it is pretty simple to use that to substitute for x in the first equation:
(2y -1)² -(2y -1) +3y = 5 . . . . substitute for x
4y² -4y +1 -2y +1 +3y = 5 . . . . eliminate parentheses
4y² -3y -3 = 0 . . . . quadratic in y in standard form
This does not have integer solutions, so it is perhaps best solved using the quadratic formula.
[tex]y=\dfrac{-(-3)\pm\sqrt{(-3)^2-4(4)(-3)}}{2(4)}=\dfrac{3\pm\sqrt{57}}{8}[/tex]
__
Additional comment
A best first step might be to input both equations to a graphing calculator and let it show you the solutions.
What is the median of this data set?
{13, 13, 13, 15, 15, 16, 16, 17, 17}
Enter your answer in the box.
the answer is 15 because it is in the middle
Answer:
Step-by-step explanation:
Median is the middle term of the data set.
Median = 15
13 , 13 , 13 , 15 , 15 , 16 , 16 , 17 , 17
−k+3k what is the answer to this problem
Answer:
It is 2k
Step-by-step explanation:
All you do is add them together
The hypotenuse of a right triangle measures 15 cm and one of its legs
measures 9 cm. Find the measure of the other leg. If necessary, round to the
nearest tenth.
Answer:
12
Step-by-step explanation:
Use Pythagorean Theorem
[tex]a^{2}[/tex] + [tex]b^{2}[/tex] = [tex]c^{2}[/tex]
[tex]9^{2}[/tex] + [tex]b^{2}[/tex] = [tex]15^{2}[/tex]
81 + [tex]b^{2}[/tex] = 225
[tex]b^{2}[/tex] = 144 (subtract 81 both sides)
b = 12 (square root each side)
➣ The hypotenuse of a right triangle measures 15 cm.
➣ one of its legs (base) measures 9 cm.
To find -➣ the measure of the other leg (perpendicular).
➣ to round the answer to nearest tenth.
Solution -Here,
p = perpendicular of the triangle
b = base of the triangle
h = hypotenuse of the triangle
Using the Pythagoras Theorem,
(height)² = (perpendicular)² +(base)²
i.e h² = p² + b²
➩ (15)² = p² + (9)²
➩ p² = (15)² - (9)²
➩ p² = 225 - 81
➩ p² = 144
➩ p = √144
➩ p = 12 cm
Hence, the measure of the other leg is 12cm._____________________________
12
⇣
__
10
__
Round 12 to nearest tenth gives 10 as the answer.
Lesson 12.03 plot twist
What is the total number of ski trails
There are 12 number of ski trails shown in the table.
What is an equation?An equation is an expression that shows the relationship between two or more variables and numbers.
From the table attached, we can see that there are only 12 different ski distances, that is there are 12 data's in the table, hence:
The total number of ski trails = 12
There are 12 number of ski trails shown in the table.
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The sales tax in the town where Amanda lives is 8%. Amanda paid $40 in sales tax on a new stereo. What was the price of the stereo?
Whats the best practice to measure: inches, meter, yards
Engineers rely greatly in the international system for measurement, for length this translates to meters hence, for best practice, the answer is meters
Standard unit for measuring LengthWhile other profession will depend on yards, inches, of foot, the standard unit for measurement of length is meters.
The meter is mostly known as the unit for measuring length because it serves as a base unit, other units bigger(Kilometer) or even smaller (millimeter or centimeter) take reference from the meter
Lear more about Standard international units here:
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