Answer:
[tex]\mathrm{Best\:course\:grade\:possible:\:}87.25\%,\\\mathrm{Minimum\:score\:on\:final\:to\:earn\:at\:least\:a\:75\%\:for\:the\:course:\:}51\%[/tex]
Step-by-step explanation:
Assuming the maximum score for the final is [tex]100\%[/tex], we can multiply each score by its respective course weight and add them together to give a final score. If your friend did receive this maximum score of [tex]100\%[/tex], their overall grade for the course would be:
[tex]83(1-0.25)+100(0.25)=\fbox{$87.25\%$}[/tex].
To find the minimum score they need to earn a 75% for the course, we set up the following equation:
[tex]83(1-0.25)+x(0.25)=75[/tex], where [tex]x[/tex] is the minimum score she needs.
Solving, we get:
[tex]62.25+x(0.25)=75,\\x(0.25)=12.75,\\x=\fbox{$51\%$}[/tex].
lA librarian wants to display 5 of the top 10 books by the circulation desk. How
many different combinations of books are possible?
a. 6,054,048
b. 252
c. 100,000
d. 50
ayoo someone help its kinda ✨confusing✨
Answer:
uhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
Step-by-step explanation:
i hope it help
Answer:It’s 6 ... 6/7-3/8=27/56
Hope these helps!!! :)
Step-by-step explanation:
How to Find the length of the median of each trapazoid
Farhana purchases a computer for $850. The store charges her 8% sales tax on the purchase. How much will the store charge for the purchase, including the sales tax?
Answer: it will be $670 with the tax sales
Step-by-step explanation:there you go!
Of the shirts produced by a company, 6.5% have loose threads, 9.5% have crooked stitching, and 3% have loose threads and crooked stitching. Find the probability that a randomly selected shirt has loose threads or has crooked stitching.
Answer:
[tex]P(L\ or\ C) = 0.13[/tex]
Step-by-step explanation:
Given
Represent loose threads with L, Crooked stitching with C.
So, we have:
[tex]P(L) = 6.5\%[/tex]
[tex]P(C) = 9.5\%[/tex]
[tex]P(L\ and\ C) = 3\%[/tex]
Required
Calculate P(L or C)
In probability:
[tex]P(A\ or\ B) = P(A) + P(B) - P(A\ and\ B)[/tex]
In this case:
[tex]P(L\ or\ C) = P(L) + P(C) - P(L\ and\ C)[/tex]
Substitute values for P(L), P(C) and P(L and C)
[tex]P(L\ or\ C) = 6.5\% + 9.5\% - 3\%[/tex]
[tex]P(L\ or\ C) = 13\%[/tex]
Convert to decimal
[tex]P(L\ or\ C) = 0.13[/tex]
Hence:
The required probability is 0.13
If you had 1.27x105 mL and 3.785 L equals exactly one gallon then how many gallons do you have? (Make sure you have the correct number of significant digits in your answer)
Answer:
33.6 gallons
Step-by-step explanation:
[tex]\frac{1.27x10^5 mL}{1}[/tex] × [tex]\frac{1 liter}{1000 mL}[/tex] × [tex]\frac{1 gallon}{3.785 liters}[/tex] = 33.5535 gallons = 33.6 gallons
i need help with this
Answer:
I would say that the answer is D
Step-by-step explanation:
Hope this helps you:)
what percent of 77 is 774
Answer:
9.95%
Step-by-step explanation:
Steve determines that sides DK and BC are congruent. He also measures angle K and angle C and determines that
they are congruent. He concludes that the triangles are congruent by the SAS Congruence Theorem. Is Steve correct?
If he is incorrect, which congruence theorem should Steve use? Explain your reasoning
Answer and Step-by-step explanation: Two triangles are congruent when they have the same 3 sides and the same 3 angles.
One way to find if they are congruents is a theorem called "Side-Angle-Side" (SAS): if two sides and its included angle is equal to the other triangle's corresponding sides and angles, the triangles are congruent.
In the graph below, in triangle DEK, as Steve determined, side DK measures 12. In triangle ABC, side BC is also 12. The angles K and C are equals, so if sides EK and AC are congruent, SAS Congruent Theorem is correct.
To test it, find distances EK and AC, which is calculated as:
[tex]d=\sqrt{(x_{1}-x_{2})^{2}-(y_{1}-y_{2})^{2}}[/tex]
EK is a distance between points E(-6,4) and K(0,-4)
[tex]d=\sqrt{(-6-0)^{2}-(4+4)^{2}}[/tex] = 10
AC is a distance between points A(3,6) and C(9,-2)
[tex]d=\sqrt{(3-9)^{2}-(6+2)^{2}}[/tex] = 10
EK and AC have the same distances between each point, i.e., segment EK measures the same as segment AC, 10 units.
Therefore, triangles DEK and BAC are congruent proven by SAS Congruence Theorem.
Find the equation of the line with slope m=4/5 that contains the point (10,11).
Answer:
Y=4/5x+3
Step-by-step explanation:
Y–11=4/5(x–10)
Y–11=4/5x–8
Y=4/5x+3
What is the total magnification of the 10x lens????
asap!!!! Please say the correct answer!!!!
answer plssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss
Answer:
Wouldn't the answer be the point on -3 since
thats how mcuh money he's in debt now after buying that book?
Please answer i need it
Answer:
I think a rhombus
Step-by-step explanation:
police officer recorded the speeds of 100 cars in a 50 mph zone .The results are in the box plot shown .how many cars were going between 40 and 48 mph?
a. 25
b. 32
c. 16
d.20
Hurryyyy please
Two angles of a triangle have the same measure and the third one is 3 degrees greater than the measure of each of the other two. Find the measure of the LARGEST angle in the triangle.
9514 1404 393
Answer:
62°
Step-by-step explanation:
If x is the largest angle, the sum of angles in the triangle is ...
x + (x -3) +(x -3) = 180
3x -6 = 180 . . . . . simplify
x -2 = 60 . . . . . . . divide by 3
x = 62 . . . . . . . . . .add 2
The largest angle is 62°.
Sassy Fashions buys dresses at wholesale and then marks them up for retail sale. They recently sold a dress at a 40% discount off their marked-up price. What percent mark-up did they originally apply to the dress if they broke even on the sale? Express your answer to the nearest whole percent.
Answer:
67%
Step-by-step explanation:
I did math counts
A train is travelling at a constant speed in ten minutes it travels 24 km work out how far it travels in 30 minutes
50min
1 hour
Based on a study by Dr. P. Sorita Soni at Indiana University, assume that eye colors in the United States are distributed as follows: 40% brown, 35% blue, 12% green, 7% gray, 6% hazel. If three people are randomly selected, what is the probability that one will have brown eyes, one will have gray eyes, and one will have green eyes (with replacement)
Answer
0.00336
Step-by-step explanation:
Given :
P(Brown), P(Br) = 0.4
P(Blue) = P(b= 0.35
P(green,) = P(g) = 0.12
P(gray), P(Gr) = 0.07
If 3 individuals are selected, the probability that one has brown eye, 1 has Grey and one has green.
Since the probabilities are independent :
P(Br) * P(Gr) * P( g)
0.3 * 0.07 * 0.12
= 0.00336
sarah puts $500 in a savings account that earns 3.15% compounded annually. how long does it take for sarah to double her money
Answer: What are the choices?
Step-by-step explanation:
The table below represents a proportional relationship
х
3
4
5
5
6
у
0.375
0.5
0.625
0.75
True
Or False
I GIVEEE BRAINLIST //
Answer:
-20% aka 20% decrease
Step-by-step explanation:
Answer:
450 %20
Step-by-step explanation:
!!!!! PLEASE PLEASE HELP ME !!!!! IS ANYONE SEEING MY QUESTIONS??
Find the standard equation for the circle with center on the negative y -axis and passing through the origin with radius of 3.
A. x^2 + y^2 = 9
B. (x + 3)^2 + y^2 = 9
C. x^2 + (y + 3)^2 = 9
Answer:
The correct option is C : x² + (y +3)² = 9 .
Step-by-step explanation:
We know that the general equation for a circle is ( x - h )² + ( y -k )²= r², Where,
r is the radius.(h , k) is the center.Let the point be ( 0 , -y) , since it is on negative y axis . And the circle passes through the origin that is (0,0) . Hence the center will be 3 units down the y - axis that is ( 0 , -3) .Hence h will be 0 and y = (-3) .
Now its given that the radius of the circle is 3. So on substituting r = 3 , in standard form we have ,
⇒ ( x -h )² + ( y - k )²= r²
⇒ ( x - 0)² + { y - (-3) }² = 3²
⇒ x² + ( y + 3) ² = 3²
⇒ x² + ( y + 3)² = 9
Hence the correct option is C [ x² + ( y+3)² = 9 ] .• Note that I have attached the graph of the same .
can you guys please help me, I really REALLY need it.
The radius of a circle is 14 m. Find its area in terms of pie
HOPE THIS HELPS TO U
Elan is painting the outside of a rectangular barn door. It is
80 inches high and 60 inches wide. What is the area of the
outside of the door?
Help ASASP
Answer:
9600
Step-by-step explanation:
80 times 60 times 2
What is the area of the trapezoid?
Ignore that I've already marked an answer. That was on accident.
C. 64
This is the answer
the measure of an angle is 144.5 degrees what measure of it supplementary angle?
Answer:
180-144.5= 35.5
Explanation:
Supplementary means two angles add up to 180 degrees.
so 180-144.5= 35.5
Hope it helps you.
integral of below.
ſ√y . e^-y^3
Assuming you're equipped with the error function,
[tex]\mathrm{erf}(x)=\displaystyle\frac2{\sqrt\pi}\int_0^x e^{-u^2}\,\mathrm du[/tex]
whose derivative is
[tex]\dfrac{\mathrm d}{\mathrm dx}\mathrm{erf}(x)=\dfrac2{\sqrt\pi}e^{-x^2}[/tex]
by substituting x = √y, so that x ² = y and 2x dx = dy, we have
[tex]\displastyle\int\sqrt y e^{-y^3}\,\mathrm dy=\int 2x^2 e^{-x^6}\,\mathrm dx[/tex]
Then if u = x ³ and du = 3x ² dx, we have
[tex]\displaystyle\int\sqrt y e^{-y^3}\,\mathrm dy=\int\frac23 e^{-u^2}\,\mathrm du[/tex]
[tex]\displaystyle\int\sqrt y e^{-y^3}\,\mathrm dy=\frac{\sqrt\pi}3\mathrm{erf}(u)+C[/tex]
[tex]\displaystyle\int\sqrt y e^{-y^3}\,\mathrm dy=\frac{\sqrt\pi}3\mathrm{erf}(x^3)+C[/tex]
[tex]\displaystyle\int\sqrt y e^{-y^3}\,\mathrm dy=\boxed{\frac{\sqrt\pi}3\mathrm{erf}\left(y^{\frac32}\right)+C}[/tex]
If you're not familiar with the error function, unfortunately there is no elementary antiderivative...
Where is the blue dot on the number line? -7 ? -7.5. -8
Answer:
-7.5
Step-by-step explanation:
Answer:-7.4
Step-by-step explanation:
Hopen helps ❤
Frank has a box of pens. The box contains 6 blue pens, 8 black pens and 3 red pens. Some more blue pens are added to the box. The probability of selecting a blue pen is now 1/2. How many blue pens were added to the box?
Answer: umm i calculated about 10??
Step-by-step explanation:
