Step-by-step explanation:
a. Belle as she only missed 50 questions where as Aurora missed 78. (500-450) and (650-572)
b. Belle scored 90% (450/500=0.9)
Answer:
a. Belle scored better, by scoring 2% more than Aurora.
b. She scored 90%
Step-by-step explanation:
Make your denominator out of a 100
So you will divide by 6,5
572÷6,5/650÷65
= 88/100
=88%
And divide the other by 5
450÷5/500÷5
=90/100
=90%
The area of a rectangle is 8w + 18 square feet. The length of the rectangle is 2 feet. Use factoring to write an expression to represent the width of the rectangle.
Answer:
4w + 9
Step-by-step explanation:
Area of rectangle = length x width (or base x height, depending on how you look at it).
It is given to you that:
Area = 8w + 18
Length = 2
Let: width = x
Plug in the corresponding terms with the corresponding words:
8w + 18 = 2x
Isolate the variable, x. Divide 2 from both sides of the equation:
(8w + 18)/2 = (2x)/2
x = (8w + 18)/2
w = (8w)/2 + (18)/2
w = 4w + 9
4w + 9 is the expression that represents the width of the rectangle.
~
3. What are the intersection points of the line whose equation is y=3x +3 and the
circle whose equation is (x - 2)² + y2 = 25?
Answer:
(-2 , -3) and (0.6 , 4.8)
Step-by-step explanation:
y=3x +3
(x - 2)² + y² = 25
(x - 2)² + (3x +3)² = 25
x²-4x+4+9x²+18x+9-25=0
10x²+14x-12=0
5x²+7x-6=0
(x+2)(5x-3)=0
x = -2 or x = 3/5 (-0.6)
y = -3 or y = 4 4/5 (4.8)
A circular flower bed is 17 m in diameter and has a circular sidewalk around it that is 2 m wide. Find the area of the sidewalk in square meters. Use 3.14 for π.
The area of the sidewalk is __ m2.
Answer: 56.55 m^2
Step-by-step explanation:
calculate the size of angle AEF
Answer:
Accuate Angel 230 digre
Answer:
90 degrees
Step-by-step explanation:
The sum of the measures of interior angles in a quadrilateral is 360 degrees. A quadrilateral is any shape that has 4 sides. ABCD is a square, and squares have 4 sides, so the sum of the angles inside of the square will be equal to 360. A square has 4 angles, each with equal measure, so to find the measure of one angle, divide 360 by 4: 360/4=90. Each angle in a square measures 90 degrees.Triangle DEF is an equilateral. This means that each side is equal, but it also means that each angle will be equal too. The sum of the measure of interior angles in a triangle is 180 degrees, and a triangle has 3 angles, therefore you can find the measure of each angle in an equilateral by dividing 180 by 3: 180/3=60. Each angle in an equilateral triangle measures 60 degrees.The measure of a straight line is always 180 degrees. CDF is a straight line, and it is made up of 3 angles:-Angle CDA
-Angle ADE
-Angle EDF
Since the measure of CDF has to be 180 degrees, the measures of angles CDA, ADE, and EDF must add up to 180.Angle CDA is an angle of a square, so it is equal to 90 degreesAngle EDF is an angle of an equilateral triangle, so it is equal to 60 degrees.The angles must add up to 180, so 90+60+ADE=180You can subtract 90 and 60 from 180 to find the measure of ADE: 180-90-60=30The question tells us that triangle ADE is isosceles. There is a theorem called base angles theorem, and it states that if two sides of a triangle are equal in length, then the two angles opposite from them will be equal in measure. Using this theorem, we can find that the measure of angle ADE is equal to the measure of AED. We already found out that ADE is 30 degrees, so AED is also 30 degrees. But the angle we are looking for is AEF:AEF is made up of angles AED and DEF, so the measures of angles AED+DEF=AEF. DEF is part of the equilateral triangle, so we know it is 60 degrees. We already found that AED is 30 degrees, so add 30 and 60 degrees: 30+60=90. AEF is 90 degrees.What is the cosine equation of the function shown?
Answer: f(x)=5cos(x+pi/3)+4
Step-by-step explanation: I just tool the quiz
find the translation of the triangle along v
Answer:
The v with arrow is for vector so you find the slope and apply it to each of the vertices
Step-by-step explanation:
Please help me with this I will make you brainlist if you respond with no links and fully! Do NOT steal points.
Answer:
157.08
Step-by-step explanation:
Hello There!
The first step in solving this problem is to find the formula for volume of a cylinder
To find the volume of a cylinder we use this formula
[tex]V=\pi r^2h[/tex]
Where r = radius and h = hypotenuse
we are given the height and the diameter
To convert the diameter to radius we divide the diameter by 2
5/2=2.5
so the radius is 2.5
now we plug in the values
[tex]V=\pi 2.5^28\\2.5^2=6.25\\6.25\pi =19.63495408\\19.63495408*8=157.0796327[/tex]
So the volume of the cylinder is 157.0796327
now we just round to the nearest hundredth and get that the volume of the cylinder is 157.08
Marking brainliest!
In your own words, why does erosion mean?
Answer:
the process of being eroded by natural agents such as wind, water, ice, etc.
this process moves sediment or material from one place to another
Step-by-step explanation:
[Help asap, will mark brainliest] In the figure, line a is parallel to line b.
Answer:
m <5 = 65°
m<8 = 115°
Step-by-step explanation:
m<2= m<5 = 65° (vertically opposite angles are equal)
m<5 + m<4 = 180 (co-int angles, parallel lines)
65+ m<4 =180
m<4 = 115°
Therefore
m<4=m<8 = 115° (vertically opposite angles are equal)
Answer:
m<5 = 65 degrees m<8 = 115 degrees
Step-by-step explanation:
m<2 = 65 degrees
m<2 = m<5 so
m<5 = 65 degrees
A line is 180 degrees, so
180 degrees - 65 degrees = 115 degrees
m<8 = 115 degrees
i need to know which one is an expression, equation, and inequality
Answer/Step-by-step explanation:
An expression is a series of number without any signs so expression would be the first one.
Inequality would be when they do a sign like > or <, etc. so it would be the 2nd one.
Equation would be when they have an equal sign which would be the 3rd one.
Simple Ex.
Expression : 2 + 66 / 11 - 3 x 2
Inequality : g + h > f
Expression : 4j - 3 = j
Hope this helps :)
Solve this equation. Type your answer for the solution for "X" in the blank. If your answer is negative, do not include any spaces. If your answer is a fraction, use the "/" with no spaces.
x/5 -8 = -4
Need help will give brainlest please this practice test makes no sense need explanation
Answer:
D
Step-by-step explanation:
Well, I can tell the answer just by looking:
- The shape moved counterclockwise by one quadrant
- The shape got SMALLER
- Rotations go counterclockwise. So that's a 90 degree rotation.
- Shape gets smaller so it's dilated by a number less than 1. Dilate by 1/2
You spin a spinner and pick a card. How many outcomes are possible
Answer:
20
Step-by-step explanation:
5 outcomes from spinner, 4 from cards.
5x4=20
The solution is, the total number of possible outcomes 30.
What is probability?Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.
here, we have,
Explanation:
Given:
To find:
The number of possible outcomes
The first event(flipping a coin) has 2 possible outcomes = Head or Tail
The second event(picking a card) has 5 possible outcomes = P, Q, R, S, T
The third event (spinning the spinner) has 3 possible outcomes = 1, 2, 3
So the total number of possible outcomes = 2 * 5 * 3 = 30
Hence, The solution is, the total number of possible outcomes 30.
To learn more on probability click:
brainly.com/question/11234923
#SPJ2
x+y=-3
X+Y=7
no solution?
Answer:
no solution
Step-by-step explanation:
x + y cannot be equal to both -3 and 7, so there is no solution.
Fifty-six thousandths in in decimal form.
Beginning with the equation 2x + 8y = 12, write an additional equation that would create:
a system with no solutions
Answer:
[see below]
Step-by-step explanation:
A system of equations with no solution would show parallel lines. We just have make a equation that is parallel to the original equation.
The slope of 2x + 8y = 12 is [tex]-\frac{1}{4}[/tex], and it's y-intercept is [tex]\frac{3}{2}[/tex].
Since parallel lines have the same slope but not the same y-intercept, I would use [tex]y=-\frac{1}{4}x+3[/tex].
Any equation that has -1/4 as the slope would work.
When graphed together, they show as a system with no solution.
Hope this helps.
Given 2x-2y=23 find x when y=9
Answer:
x= 20, 5
Step-by-step explanation:
Sub y into equation to find x
2x - 2 (9)= 23
2x-18 =23
2x= 23+18
2x= 41
x=41/2
x= 20,5
I need help pls and thank you
Solving this system using substitution: 2x+6y=28/y=-5x
What is 591x37+125-16
Instant brainliest to HXH fans, proof if you name the 6 most important characters and the full name of the show
Answer:
Leorio, Gon, Killua, Kurapika, Hisoka, and Ging
Step-by-step explanation
Answer:
It's 21976 Gon! >:3
well- in my opinion i think its u, lol me killua, Leorio //side note: ofc the doctor//coOk kURAPIKA, HISOKA- //bUNGee gUM// i dont gaf about my brother illumi so the lost father //gINg// is it >:3
Step-by-step explanation:
:3
Please help me. I'm not trying to guilt-trip or anything but I suck at school and my questions haven't been answered or people just forget that there are multiple photos. I hope someone will help me. I only have 10 points :l I know the links are scams
Answer:
A= 9 , B= 4 , C= 18
Step-by-step explanation:
if u need a in depth explanation text me in the comments :)
A rectangle has an area of 120 square feet and a width of 8 feet. please help
Answer:
Step-by-step explanation:
length = 120/8 = 15 feet
perimeter = (15 + 8) x 2 = 46 feet
The area is the product of the length and width then the length of the rectangle is 15 feet.
What is a rectangle?It is a polygon that has four sides. The sum of the internal angle is 360 degrees. In a rectangle, opposite sides are parallel and equal and each angle is 90 degrees. And its diagonals are also equal and intersect at the mid-point.
A rectangle has an area of 120 square feet and a width of 8 feet.
Then the length of the rectangle will be
Area = Length × Width
120 = 8L
L = 15
Then the length of the rectangle is 15 feet.
More about the rectangle link is given below.
https://brainly.com/question/10046743
9. Bella hiked a 13-kilometer trail at Great Peak. How many meters did Belle
hike? 1km = 1,000m
A 0.13
B 0.013
C 1,300
D 13,000
9.)
Answer:
D. 13,000
Step-by-step explanation:
If there are 1,000 m in 1 km, we can find the number of meters she hiked by multiplying 13 by 1,000:
13(1000)
= 13,000
So, Belle hiked 13,000 meters.
The correct answer is D. 13,000
Select all equations that can be used to solve for 0. If you have time, can you please explain how you got the answer
Answer:
B and D are correct.
Step-by-step explanation:
First, we find the length of ALL the sides using the Pythagorean Theorem.
16² + b² = 20²
256 + b² = 400
b² = 144
[tex]\sqrt{144}[/tex] = 12
Now, we know that sine is opp/hyp, cosine is adj/hyp, and tangent is opp/adj.
A is incorrect because that's supposed to be cos. B is correct because that is indeed cos. C is incorrect. D is correct. E and F are incorrect because it's supposed to be sin.
Don't know if any of that made sense. All you need to do is remember the difference between sine, cosine, and tangent.
Answer:
The answer is B and D.
Step-by-step explanation:
Length of ladder AC = 20 feet
Height of the highest point of the ladder from ground AB = 16 ft
By Pythagoras theorem,
AC² = BC² + AB²
BC² = AC² - AB²
BC = √(20)^2-(16)^2
= √400-256
= √144
= 12
Now, Sinθ = opposite side/hypotenuse = AB/AC
= 16/20
Cosθ = adjacent side/hypotenuse = BC/AC
= 12/20
Therefore, A and D are the correct options.
You're very welcome! ;)
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
192
Step-by-step explanation:
8²+x²=16²
x=y
[tex]x = \sqrt{192} [/tex]
what is the area of this triangle?
Answer:
A = 21 sq units
Step-by-step explanation:
base = 6 units
height = 7 units
A = 1/2(6)(7) = 42/2 or 21
y-6.31=7.02
what is y?
Answer:
[tex]\Large \boxed{y=13.33}[/tex]
Step-by-step explanation:
[tex]y-6.31=7.02[/tex]
Add 6.31 to both sides
[tex]y-6.31+6.31=7.02+6.31[/tex]
[tex]y=13.33[/tex]
Can someone help?????
Pleas help me I need help really bad Which shows the given inequalities in slope-intercept
form?
Given the system of inequalities:
4x - 5y = 1
{y-x53
Oyster
y<2x + 6
oyz - 5
y< 2x + 6
O y2-*** }
y > 2x + 6
Answer:
the answer is B
Step-by-step explanation:
on Monday, 241 students went on a trip to the zoo. all 5 buses were filled and 6 students had to travel in cars. how many students were in each bus?
Answer: 47
Step-by-step explanation:
I just worked it out and checked my work with a calculator :)