Please help thx and will mark as brainliest if you do it correct!
The accompanying circle represents the 2400 students at Central High School, and the shaded portion represents the freshman class. What is the total number of students in the freshman class?
Answer:
We need a picture so we can help!!!
Step-by-step explanation:
We need it to solve!!!!
Need help solving triangle in picture
Answer:
see explanation
Step-by-step explanation:
Using the sine ration on the left, right triangle
sin35° = \(\frac{opposite}{hypotenuse}\) = \(\frac{a}{8.6}\) ( multiply both sides by 8.6 )
8.6 × sin35° = a , thus
a ≈ 4.93 cm
a + b = 15.7, so
4.93 + b = 15.7 ( subtract 4.93 from both sides )
b = 10.77
-------------------------------------------------------------
Using the cosine ratio on the left, right triangle
cos35° = \(\frac{adjacent}{hypotenuse}\) = \(\frac{y}{8.6}\) ( multiply both sides by 8.6 )
8.6 × cos35° = y , so
y ≈ 7.04 cm
Using Pythagoras' identity on the right, right triangle
c² = b² + y² = (10.77)² + (7.04)² = 115.99 + 49.56 = 165.55
Take the square root of both sides )
c = \(\sqrt{165.55}\) ≈ 12.87 cm
A veterinarian is changing the diets of two animals, Simba and Cuddles. Simba currently consumes 880 Calories per day. That number will increase by 140 Calories each day. Cuddles currently consumes 3,360 Calories a day. That number will decrease by 170 Calories each day. The patterns will continue until both animals are consuming same number of Calories each day. In how many days will that be? How many Calories will the animals be consuming each day then?
Answer:
In 8 days Simba & Cuddles will be consuming the same amount of calories
The will be consuming 2000 calories
To find the quotient of 156.38 and 100, move the decimal point in 156.38 (two four three five) places to the (left,right)
Answer:
Move the decimal two times to the left and you get 1.5638
The grocery store is having a sale that offers 45% off the original price. What fraction is taking off the prices? (simplify your fraction)
Last month I had 8 guppies. This month I have 20 guppies. What is the percent of increase in guppies from last month to this month?
Answer: 150% increase
Step-by-step explanation:
percent of increase: new/old × 100%-100%
--------------
new/this month: 20 puppies
old/last month: 8 puppies
new/old×100%-100%
=20/8×100%-100%
=2.5×100%-100%
=250% -100%
=150% increase
Hope this helps!! :)
Please let me know if you have any question
HELP ASAP!! DUE SOON!!
Unfortunately I could not answer the question on the same day you asked, but I'll help anyway in case you haven't completed it yet. Patience is a virtue, after all!
Answer:
X is less than or equal to -3
Step-by-step explanation:
(<= means "is less than or equal to")
If we do reverse math, we can subtract 1 from both sides, leaving us with 4x <=-12. After that, we can divide both sides by 4, leaving us with X<=-3. This also falls within the parameters of 3x<=0, so no further solving is required.
Hope this helps!
please help! I think it's wrong, please help is for today :(
Answer:
a ) Function
b ) Not a Function
c ) Not a Function
d ) Not a Function
Step-by-step explanation:
A function table displays the relationship between the inputs and outputs of a specified function. Remember, a function can only assign an input value to one output value. If you see the same x-value with more than one y-value, the table does not represent a function.
Hope this helps! :)
Write each amount as a rate.
a) A fast reader can read 500 words every minute.
b) Min did 13 chin-ups in 1 min.
c) A cheetah can run 70 km in 1 h.
d)When fighting a fire, a fire truck uses about 200 L of water every minute.
Answer:
Step-by-step explanation:
a)500w/m or 500wpm
c)70km/h
d)200L/m
couldn't work out b)
You have a pizza with diameter 12
2
3 in., and a square box that is 12.65 in. across. Write 12
2
3 as a decimal. Can you fit the pizza inside the box?
What is the decimal expansion for 12
2
3?
A.12.6
B.12.65
C.12.6
D.12.66
pls help me
Answer:
D is the right choice and no you cannot fit the pizza inside the box.
Step-by-step explanation:
D is the answer because to turn 2/3 into a decimal you would divide 2 by 3 and the answer you would get would be 0.66666666666...You would then add 12 to the answer and get 12.6666... Once you get this answer you would round it to the hundredths to get 12.67 but since that is not an option you could use D, 12.66 inches.
Answer:
I believe the answer is D.
Step-by-step explanation:
hiiiiiiii please help and tysm =v=
Point A, located at (5, -4) is reflected in the y-axis, resulting in the location of point A'. Which of the following statements is true?
Point A' is located at (-5,-4)
Point A' is located at (-5,4)
Point A is located at (4,5)
Point A' is located at (-4,5)
The correct answer is Point A' is located at (-5, -4).
When a point is reflected in the y-axis, its x-coordinate is negated and its y-coordinate remains the same. Therefore, the x-coordinate of point A changes from +5 to -5, and the y-coordinate remains -4. Hence, the coordinates of A' are (-5, -4).
Bruce’s hourly wage increased from $15.00 to $18.60. What percent of change does this represent?
Step-by-step explanation:
15.00_____100percent
18.60_____124 percent.
it increased witf 24 percent
Answer:
0.2% increase
First, you find the change between $15.50 and $18.60, which is 3.10. Then you do 3.10 divided by the original, which is 15.50. You should get 0.2.
Step-by-step explanation:
Explain the cosine rule and sine rule while also saying how to use it and provide examples (keep it in simple terms)
Answer:
Sure, I'll explain the cosine rule and sine rule in simple terms:
The cosine rule (also known as the law of cosines) is used to find the length of a side or the measure of an angle in a triangle given the lengths of the other sides and the angle between those sides. It states that c^2 = a^2 + b^2 - 2ab cos(C), where c is the length of the side opposite angle C, and a and b are the lengths of the other two sides.
Here's an example of how to use the cosine
Suppose we have a triangle with sides a=6, b=8, and an angle between them c=45 degrees. We want to find the length of the remaining side of the triangle, side a.
Using the cosine rule:
a^2 = b^2 + c^2 - 2bc * cosA
where A is the angle opposite side a, we can plug in our values and solve for a:
a^2 = 8^2 + 6^2 - 2(8)(6) * cos(45)
a^2 = 64 + 36 - 96 * 0.707
a^2 = 10.56
a = sqrt(10.56)
a = 3.25 (rounded to two decimal places)
Therefore, the length of side a is approximately 3.25 units.
Answer:
Step-by-step explanation:
Could you help with this please? It would get my grade up and i'd get my stuff back.
ill give Brainliest to first CORRECT answer PLEASE HELP ASAP
Answer:
8
Step-by-step explanation:
Answer:
8km
Step-by-step explanation:
0.9(3/2.25-1/8(5/3+1/9))-4/7 / (8/10)
Find the greatest number such that x172y is divisible by 45
Answer:
45
Step-by-step explanation:
Pls help me to find the median and mode, with solution pls
Answer:
Mode=32
Mean=32
Median=32
Step-by-step explanation:
Mode=highest frequency
Mode=10
Mean=£fx
£f
Mean=1280
40
=32
Median=n/2
=40/2
=20
median=32
PLS HELPP
A shipment of 8 tons of sugar is separated into containers of equal size. If the shipment fills 3 and 1/3 of containers, how much sugar can one container hold?
Write your answer as a mixed number in simplest form.
Answer:
1 1/9
Step-by-step explanation:
Please help! Thank you!
Answer:
525
Step-by-step explanation:
If it's just asking to find the average of heads then times it by 20 then just do 32+28+21+24 to get 105 and divide it by 4 to get 26.25 then times it by 20 since this is the average of 50 throws and it's asking for the average of 1,000 throws which is 525
Use the Midpoint Rule with \(n=5\) to estimate the volume obtained by rotating about the y-axis the region under the curve \(y=\sqrt{1+x^3}\), \(0\leq x\leq 1\).
To estimate the volume using the Midpoint Rule with \(\displaystyle n=5\), we need to divide the interval \(\displaystyle 0\leq x\leq 1\) into \(\displaystyle n\) subintervals of equal width. Since \(\displaystyle n=5\), each subinterval will have a width of \(\displaystyle \Delta x=\frac{1-0}{5}=\frac{1}{5}\).
Now, let's calculate the volume using the Midpoint Rule. The formula for the volume obtained by rotating about the y-axis is:
\(\displaystyle V\approx 2\pi \sum _{i=1}^{n}y_{i}\Delta x\)
where \(\displaystyle y_{i}\) represents the value of the function \(\displaystyle y=\sqrt{1+x^{3}}\) evaluated at the midpoint of each subinterval.
First, let's find the midpoints of the subintervals. Since the width of each subinterval is \(\displaystyle \Delta x=\frac{1}{5}\), the midpoint of the \(\displaystyle i\)-th subinterval is given by:
\(\displaystyle x_{i}=\frac{\Delta x}{2}+\left( i-\frac{1}{2}\right) \Delta x=\frac{1}{10}+\left( i-\frac{1}{2}\right) \frac{1}{5}\)
Substituting \(\displaystyle x_{i}\) into the function \(\displaystyle y=\sqrt{1+x^{3}}\), we obtain:
\(\displaystyle y_{i}=\sqrt{1+\left( \frac{1}{10}+\left( i-\frac{1}{2}\right) \frac{1}{5}\right) ^{3}}\)
Now, we can calculate the approximate volume using the Midpoint Rule:
\(\displaystyle V\approx 2\pi \sum _{i=1}^{5}y_{i}\Delta x\)
Substituting the values of \(\displaystyle y_{i}\) and \(\displaystyle \Delta x\) into the formula, we can evaluate the sum and compute the estimated volume.
\(\huge{\mathfrak{\colorbox{black}{\textcolor{lime}{I\:hope\:this\:helps\:!\:\:}}}}\)
♥️ \(\large{\underline{\textcolor{red}{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}\)
The international space station has small cupboards that are used for storage. A cupboard is drawn below (redrew by me cause I'm using chrome book and computer)
1. What is a formula that can be used to find the area of one triangular section of the door?
2. How do you know the formula will work?
Answer:
\(A=\frac{ab}{2}\) or \(A = a *\sqrt{c^2-a^2} /2\)
Step-by-step explanation:
Depending on the values you take depends on the equation you would use to solve for the area of a right triangle(the first answer accounts for measuring both arms(the sides connected to the 90 degree angle(a and b)), where as the second answer accounts for using the hypotenuse and one of the arms). That means that a 90 degree angle is involved, or as illustrated here, the square in the bottom right corner. If this were a non-right angle triangle, a different formula utilizing the height of the triangle would be used instead.
\(A = \frac{h_{b}+b}{2}\)
Since the right angle exists, a height is already given using one of the arms of the triangle in its place. We can also confirm it is a triangle by adding up all degrees of the triangle, in which it would equal 180 degrees confirming it is indeed a triangle as well.
By using trigonometric relations we will see that the area is:
How to find the area of one triangular section?
Remember that the area of a right triangle is equal to the product between the cathetus divided by 2.
Sadly, here we don't have the measures of any sides of the triangle, so getting the actual area is impossible, but if we assume that some dimension is given (like the height, let's say that is h).
h is the cathetus adjacent to the 60° angle, then the other cathetus (the bottom one) is given by:
tan(60°) = x/h
x = tan(60°)*h
Then our two catheti are h and tan(60°)*h.
This means that the area will be:
Here we only used trigonometric properties, so this area will work for any height given (always that the value of h is the cathetus adjacent to the 60° angle).
If you want to learn more about right triangles:
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1. The ångström is a unit of length defined to be 0.1 nanometer or 0.0000000001 meter. Write these numbers in scientific notation.
2. In 2017, the net worth of a businessman was $59,000,000. Write this number in scientific notation.
3. The thickness of a science specimen is 3.5 × 10 −3feet. Write this number in standard form. Then write your answer using inches.
Answer:
hola no entiendo :) por favor traduce
Step-by-step explanation:
Please help and thank you. I forgot the formulas sorry.
Use a net to find the surface area. The area of the right triangular prism is [blank] cm2.
Answer: The answer is 255 cm2
Step-by-step explanation:
So we are looking for the area of the right triangular prism. We first must start of by observing the lengths of each side. Once you have found out what is what multiply in order. First 12 x 5 = 60. Then multiply 13 x 15 which equals = 195. Finally you want to ad up the sums together to get 255 cm2.
To find more questions by me, click on my profile to view everyone I have helped. I hoped this could help you and have a fantastic day and grade : )
I need an explanation what is PEDMAS???
Please help respond to this question :)
Answer:
a. after 10 times 10
b. after 9 times 9
Step-by-step explanation:
Answer:
1. it goes : 1,2,4,5,10,20,25,50,100. so it is reversed once it gets to 10(which is multiplied by itself)
2. it goes: 1,3,9,27,81. since it is a square number it is only multiplied by 9 once before repetition.
3. a square number like 36 has the same concept as the 81, so when it gets to 6 × 6 it begins the reversion.
4. a non sqaure number like 28 goes 1,2,3,4,7,19,28. so it's right after the 4×7 it begins the reversion.
5. for example,3 goes 1,3 so I believe there is no need for repetition since there is only one pair of numbers as factors.
hope this helps
PLEASE HELP!!!!! SEMESTER TEST PART 2 K12 PLEASE ANSWER ALL THE QUESTIONS GETS BRAINLIEST
Answ
Step-by-step explanation:
PLS QUICK!!!
The figure shown is composed of 4 identical cubes.
Find the surface area.
Answer:
256 in2
Step-by-step explanation:
Brainliest