Answer:
1/8 for each
Step-by-step explanation:
4 decided by 2 for each one
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.
Use the properties of logarithms to expand the logarithm as much as possible. Rewrite the expression as a sum, difference, or product of logs.
log(x3y−8−−−−−−√)
Answer:
You are multiplying two factors in the argument. So we add the logs.
log(x4y3) + log((x2y5)1/3)
log(x4y3) + log(x2/3y5/3)
For each log term. The arguments are being multiplied. So we further add the logs. Also, any exponents become of the coefficients of logs.
4log(x) + 3log(y) + (2/3)log(x) + (5/3)log(y)
Combine like log terms.
(14/3)log(x) + (14/3)log(y)
Hope it helps!!!!!!brainliest pls!!!!!!100 POINTS AND BRAINLIST
So
P(AUB)=P(A)+P(B)
P(AUB)=62+34=96The measure of an angle is 23°. What is the measure of its supplementary angle?
Answer:
If one angle is 23 then the other is 180-23 = 157
one angle is the supplementary of other
23 is the supplementary of 157
157 is the supplementary of 23
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.
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.
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
Reuben runs 5 miles in 30 minutes. How many miles does he run per minute?
NO LINKS!! Part 8: Please help me with this problem
Answer:
Step-by-step explanation:
here !
Answer:
Step-by-step explanation:
in 10 hrs distance covered=speed×time=15×10=150 nautical miles.
x²=600²+150²-2×600×150×cos 20°
x²=360,000+22,500-180,000×cos 20°
x=√(382,500+180,000×cos 20°)
x\approx 742.73 nautical miles
time taken=742.73/15 \approx ~49.52 hours
total time taken=10+49.52=59.52 hours
applying sine formula
[tex]\frac{sin ~B}{150} =\frac{sin~20}{742.73} \\\sin~B=\frac{150}{742.73} \times~sin~20\\B=\sin^{-1} [\frac{150}{742.73} \times \sin~20]\\B\approx~3.96 ^\circ\\B\approx 4^\circ[/tex]
so it has to make a turn=20+4=24°
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 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]
The measure of the
intercepted arc of a
central angle is 24°
What is the measure of
the central angle?
Answer: 24 degrees
Step-by-step explanation:
The measure of a central angle is equal to the measure of the arc that it intercepts.
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.
Learn more about the percentage here:
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what is the ratio for 500m:250cm
Answer:
1:4
Step-by-step explanation:
Answer:
500m : 250cm can simplify to;
2m : 1cm
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 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)
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.
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?
SOMEONE PLS HELP I NEED IT I SUCK AT MATH
Answer:
b){ f(x)| –∞ < f(x) ≤ 4}
Step-by-step explanation:
I took a test recently on this and am not really sure how to explain it.
Hope this helped.
A brainliest is always appreciated.
"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! :)
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.
learn more on area here: https://brainly.com/question/25849553
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:
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! :)
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 :)
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
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.
Find out more on equation at: https://brainly.com/question/2972832
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)
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]
Help me with factoring
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