Answer:
47 %
Step-by-step explanation:
from 1.50 to 2.20 there's a 46.67 increase. to the nearest whole number that's 47%
percent increase formula
% increase = 100 x (final - initial) / absolute value of initial
Both students made a mistake.
Describe the mistake each student made.
Explain what each student needs to do to fix their mistake.
Create your own quadratic equation, and explain how to use the quadratic formula to solve it. Be specific, using a, b, and c of your equation and giving the solutions to the equation you chose.
Answer:
true answer I'm search in Goole
The root of the quadratic equation x = -3/4[tex]\pm[/tex] √-31/ 4.
What is a solution for a quadratic equation?Suppose that we've a function y = f(x) such that f(x) is quadratic.
When y = 0, then the values of x for which f(x) = 0 is called solution of quadratic equation f(x) = 0
These solution gives values of x, and when we plot x and f(x), we'd see that the graph intersects the x-axis at its solution points.
Then its roots are given as
[tex]x = \dfrac{-b \pm \sqrt{b^2 - 4ac}}{2a}[/tex]
Given; 2x^2 + 3x + 5 = 0
We know that a=2, b=3, c=5
[tex]x = \dfrac{-b \pm \sqrt{b^2 - 4ac}}{2a}[/tex]
[tex]x = \dfrac{-3\pm \sqrt{3^2 - 4(2) ( 5)}}{2(2)}\\\\\\x = \dfrac{-3\pm \sqrt{9 - 40}}{4}\\\\\\x = \dfrac{-3\pm \sqrt{-31}}{4}\\\\\\x = \dfrac{-3}{4}\pm \dfrac {\sqrt{-31}}{4}[/tex]
Learn more about solutions of a quadratic equation here:
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The answer plzzz :(((((
Answer:
530.66 m²
Step-by-step explanation:
Area of circle= π×radius²
So the radius is 26/2= 13
13×13=169
So 3.14×169 would be the area
3.14×169= 530.66
(And if you have to round to the nearest tenth it would be 530.7)
Hope this helps :)
Question 16 of 43 The table shows the heights of 10 randomly selected fifth- grade students. Height (inches) 57 54 59 53 56 54 51 56 54 56 Based on the data, select the most reasonable prediction about the height of fifth-grade students. HELPPPPPPP MEEEEEE
it’s A thank me later
The most reasonable prediction of the height of fifth-grade students is 55.
What is mean/average?Mean is an average of values of a set. Arithmetic mean, geometric mean and harmonic mean are the type of mean.
Given that,
Height of 10 students in 5th grade are 57, 54, 59, 53, 56, 54, 51, 56, 54, 56.
To determine the height of 5th grade students,
find average of all the data,
average = total height of students / total number of students
= (57 + 54 + 59 + 53 + 56 + 54 + 51 + 56 + 54 + 56) / 10
= 550 / 10
= 55
The most reasonable prediction of the height of fifth-grade students is 55.
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In a scale drawing of a house, 2 inches : 5 feet. The actual kitchen of the house will be 17 feet long. How long will the drawing of the kitchen be?
I think it's 5.2 feet :))))
8.56
A. Right
B. Isosceles
C. Acute
D. Scalene
U
E. Obtuse
F. Equilateral
Answer:
its a right triangle
Step-by-step explanation:
because it has at least one right angle
Answer:
a right because it has kind of a 90 angle
Step-by-step explanation:
Please do not send me something to download just give the answer plainly. Ill give u points and brainiest. ASAP
Answer and Step-by-step explanation:
As we can see by the given figure, we can cut out 2 rectangular prisms from this shape.
This gives us an easier time to find the volume. We will be using the volume formula for rectangular prisms: Length × Width × Height
The first prism has side lengths of:
Height = 6
Length = 11
Width = 7 (from the two 2's and the one 3 added together -- 2 + 2 + 3 = 7)
Let's multiply these values together.
6 × 11 × 7 =
66 × 7 =
462 -- First volume
The second prism has side lengths:
Height: 6
Length: 9
Width: 3
Let's multiply these values together.
3 × 6 × 9 =
3 × 56 =
168 -- Second volume
Now, we add together the volumes to get the volume of the composite figure.
168 + 462 = 630
The volume of the composite figure is 630 cubic feet.
#teamtrees #PAW (Plant And Water)
|−5| − |−9| (Work The problem out)
Answer: -4
Step-by-step explanation: well when it’s absolute value the -5 turns to positive 5 and the value of -9 turns to positive 9. So that leaves 5-9=-4
Find the value of x in the isosceles triangle shown below.
Answer: 12
Step-by-step explanation: Pythagorean theorem
PLEASE HELP! 3 questions if all answered correctly ill give you brainliest! Please help im asking very kindly!
Answer: 1. 26
2. 12.5
3. 20%
Step-by-step explanation:
What is the standard form of 6.93 x 10 -3?
Answer:
69.3x -3?
Step-by-step explanation:
The formula for the probability of something happening is
Answer:
i don't know
Step-by-step explanation:
maybe x=something happend
1/x
Drag the tiles to the correct boxes to complete the pairs. A team of 10 players is to be selected from a class of 6 girls and 7 boys. Match each scenario to its probability.
Answer:
The selection of r objects out of n is done in
many ways.
The total number of selections 10 that we can make from 6+7=13 students is
thus, the sample space of the experiment is 286
A.
"The probability that a randomly chosen team includes all 6 girls in the class."
total number of group of 10 which include all girls is C(7, 4), because the girls are fixed, and the remaining 4 is to be completed from the 7 boys, which can be done in C(7, 4) many ways.
P(all 6 girls chosen)=35/286=0.12
B.
"The probability that a randomly chosen team has 3 girls and 7 boys."
with the same logic as in A, the number of groups were all 7 boys are in, is
so the probability is 20/286=0.07
C.
"The probability that a randomly chosen team has either 4 or 6 boys."
case 1: the team has 4 boys and 6 girls
this was already calculated in part A, it is 0.12.
case 2, the team has 6 boys and 4 girls.
there C(7, 6)*C(6, 4) ,many ways of doing this, because any selection of the boys which can be done in C(7, 6) ways, can be combined with any selection of the girls.
the probability is 105/286=0.367
since case 1 and case 2 are disjoint, that is either one or the other happen, then we add the probabilities:
0.12+0.367=0.487 (approximately = 0.49)
D.
"The probability that a randomly chosen team has 5 girls and 5 boys."
selecting 5 boys and 5 girls can be done in
many ways,
so the probability is 126/286=0.44
Mark brainliest
Y=2x+3 and y=x+2 what is the x,y
Answer:
x=-1, y=1
Step-by-step explanation:
Answer:
( -1, 1 )
Step-by-step explanation:
To solve, graph the equations and find the point of intersection.
when graphed these equations intersect at (-1, 1)
To double-check and make sure it's correct, plug in a solve.
x = -1
y = 1
y = 2(-1) + 3
1 = 2(-1) + 3
1 = -2 + 3
1 = 1
y = x + 2
1 = (-1) + 2
1 = 1
THE FASTEST AND MOST ACCURATE GETS BRAINLIEST. Hannah and Harold are making cookies for a bake sale, and they need to make a lot of them. They need to make 70 baggies of cookies that each have 4 cookies in them. The recipe they are using says that one batch will make 2 dozen cookies.
How many batches of cookies will they need to make to have enough for the bake sale?
Answer:
12
Step-by-step explanation:
70 x 4 = 280, 2 dozen = 24, 280 ÷ 24 = 11.6666667 then round that so u have 12.
PLEASE HELP I GIVE BRAINLIEST
D) 60 •/•
Answer:
2/10
Step-by-step explanation:
just look at the table of outcomes to see how many have 3 or more 'T's
there are 2 of them out of 10
Brainliest goes to whoever answers correctly
plz plz plz help i'll give 10pts
DON'T ANSWER WITH A LINK :)
Answer:
40 shots total.
Step-by-step explanation:
First, change the percentage to a decimal:
80% = 80/100 = 0.80
Next, divide the amount of baskets made (32) with the decimal gotten to get the total amount of shots:
32/0.80 = 40
Brandon took a total of 40 shots.
Check. Divide 32 (shots made) with the 40 (total shots in all):
32/40 = 0.8 = 80%.
~
Help me on this one problem
Answer:
B: Line AC
Step-by-step explanation:
Looking at the I age shown, the only line that passes through point A is clearly line AC.
Thus, correct option is B
Identify the area of the figure. HELP ASAP PLEASE!!!
Answer:
Match each wave characteristic to its description.
frequency
wavelength
amplitude
the number of cycles of a wave per second
arrowRight
the distance between adjacent crests or troughs
arrowRight
the height of a wave from its equilibrium position
arrowRight
help
Step-by-step explanation:
Question 1
Evaluate the expression.
Square root of 9 iready
Answer:
3
Step-by-step explanation:
3 squared is 9 which would make 3 the square root of 9
SOMEONE PLEAE ANSWER THIS I WILL LOVE YOU!
Answer:
cos(A) = 12/13
Step-by-step explanation:
There are several ways to remember trigonometric functions, but my personal favorite is:
SOH - CAH - TOA
Where Sin(angle) = Opposite/Hypotenuse
Cos(angle) = Adjacent/Hypotenuse
and Tan(angle) = Opposite/Adjacent
The opposite is the side of a triangle that does not form part of the angle. E.g. for angle A the opposite is 5, for angle B the opposite is 12.
The hypotenuse is the longest side of the triangle, or the opposite in relation to the right angle (signified here by the little red box in the bottom left).
The adjacent is the side that isn't the hypotenuse, but is still next to a given angle. E.g. the adjacent for angle A is 12, and the adjacent for angle B is 5.
The cosine of angle A is the adjacent of angle A divided by the hypotenuse. The side adjacent to A is 12, and the hypotenuse is 13. Therefore, the cosine of angle A is 12/13.
How much lace edging is needed to go around a circular tablecloth with a diameter of 6 ft?
Answer:
A= 28.27 ft²
Step-by-step explanation:
if its trying to find area for a circle then we use the formula A=πr²
A=π(3)²
A= 28.27 ft²
Answer:
the answer is 18.85ft
Step-by-step explanation:
the question is asking you to find the circumfrance (the outside of the circle) so the formula you would use is:
C = 2πr
input the values you have into the formula
C= 2 x π x 3
(the radius is the distance between the very centre of the circle to the outside. it gives you the diameter which is the distance all the way across the circle so just half the diameter, which gives you a radius of 3)
put that into your calculator and youll get the answer
C= 18.8495559215
(i rounded the answer to two decimal places = 18.85ft)
Please help me I really need help
Answer:
A, C
Step-by-step explanation:
Use SOH CAH TOA to recall how the trig functions fit on a triangle
SOH: Sin(Ф)= Opp / Hyp
CAH: Cos(Ф)= Adj / Hyp
TOA: Tan(Ф) = Opp / Adj
the ∠A is adjacent (adj) to AB and opposite (Opp) of BC and AB is the hypotenuse (Hyp) of the triangle
which one of the above trig functions fits that?
sin(Ф) = BC / AC is sin(Ф)= Opp / Hyp , so choice A) works
cos(Ф) = BC / AC is not cos(Ф) = Opp / Hyp so choice B) does not work
cos(Ф) = BA / AC is cos(Ф) = Adj / Hyp so choice C) works
AC / BC is just a ratio it's not the angle , so D) doesn't work
Over the next 12 months you have to read more than 72 books. You have to read x books per month. The inequality 12x >72 represents this situation. Solve the inequality to find the number of books you have to read per month?
Answer:
6 books per month
Step-by-step explanation:
books:months=books per month
How many cups of water will Billy use to fill a 9-liter bucket if one cup holds of a liter of water
Answer:
9 cups!
Step-by-step explanation:
I cup = 1 liter
? cups = 9 liter
1 * 9 = 9
so ? * 1 = 9
? = 9
Answer:
The answer is
Step-by-step explanation:
59 cups
sry if im wrong
What is the mean of the following set of data:
{11, 5, 7, 11, 3, 4, 7, 4, 5}
Answer:
6.3
Step-by-step explanation:
.....................
Answer:
6.333 repeating or 19/3
Step-by-step explanation:
add them up to get 57
divide by 9
HEY! help pleaseee :)
Answer:
97
Step-by-step explanation:
Answer:
Hello! answer: x = 12
Step-by-step explanation:
This is a complementary angle meaning it will add up to 90 degrees 12 + 42 = 54 3 × 12 = 36
54 + 36 = 90 therefore x = 12 HOPE THAT HELPS!
the sum of three consecutive numbers is 45. what is the lowest
Answer:
Lowest is 14.
Step-by-step explanation:
x + x + 1 + x + 2 = 45
3x + 3 = 45
x = (45-3)/3 = 14.
Solve the system of equations and choose the correct ordered pair. 5x+2y= 19 4x - 3y - 6 A (3,5) B. (5-3) C. (5,3) D. (3,2)
Answer:
(3,2)
Step-by-step explanation:
5x+2y= 19
4x - 3y = 6
I will use elimination
Multiply the first equation by 4
20x +8y = 76
Multiply the second equation by -5
-20x +15y = -30
Add them together to eliminate x
20x +8y = 76
-20x +15y = -30
---------------------------
23y = 46
Divide by 23
23y/23 = 46/23
y =2
Now find x
5x+2y =19
Substitute y=2
5x+2(2) =19
5x+4 = 19
Subtract 4 from each side
5x +4-4 =19-4
5x= 15
Divide by 5
5x/5 = 15/5
x=3
The solution is
(3,2)
What is an equation of the line that passes through the points (1,3) and (8,5)?
Answer:
y=2/7x+19/7
Step-by-step explanation:
Slope = m = (y₂-y₁)/(x₂-x₁) = (5-3)/(8-1) = 2/7
Therefore, our equation so far is y=2/7x+b where we can calculate b, the y-intercept by plugging in one of our given points [I used (1,3)]:
y=2/7x+b
3=2/7(1)+b
3=2/7+b
21/7=2/7+b
19/7=b
Therefore, our final equation is y=2/7x+19/7