Answers
Answer:
b
Step-by-step explanation:
it just is
Related Questions
PLEASEE answer correctly !!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!
Answers
Answer:
Step-by-step explanation:
4 boys and 5 girls ratio (4:5)
4:5 ratio
hope this helps
Natalee wanted to demonstrate the volume of a square pyramid. To do this, she took a hollowed out pyramid that has a base of 25 square inches and a height of 5 inches and filled it with water. She then dumped this water into a hollowed out cube that has a volume of 125 cubic inches. Enter the amount of times that she will need to dump the water from the pyramid into the cube to completely fill the cube
Answers
Answer:
The answer is below
Step-by-step explanation:
Natalee transferred water from a square pyramid to a cube. To calculate how many times she will need to dump the water from the pyramid into the cube to completely fill the cube, we divide the volume of the cube by the volume of the square pyramid. Hence:
Number of times = volume of cube / volume of pyramid
The perimeter of the pyramid base = 25 in, hence the length of one side of the bae = 25 / 4 = 6.25 in
Volume of square pyramid = base² × (height / 3) = (6.25 in)² * (5 in / 3) = 65.1 in³
Volume of cube = 125 in³
Number of times = 125 in³ / 65.1 in³ = 1.92
The amount of times that she will need to dump the water from the pyramid into the cube to completely fill the cube is 1.92.
What is volume?The capacity of a container of any shape is called the volume.
Natalee transferred water from a square pyramid to a cube. Then,
Given is the perimeter of the pyramid base = 25 in
So, the length of one side of the base b= 25 / 4 = 6.25 in
Volume of square pyramid = b² × (h/ 3) = (6.25 in)² * (5 in / 3) = 65.1 in³
Volume of cube = 125 in³
Number of times = volume of cube / volume of pyramid
Number of times = 125 in³ / 65.1 in³ = 1.92
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Question 4 of 5
Find the length of side a.
A. 9
B. 34 square root
C. 2
D. 3
Answers
You would need to set up the pythagorean theorem
a^2+4^2=5^2
next you would have
a^2+16=25
now subtract 16 from both sides and you are left with
a^2=9
now take the square root of both sides
a=3
Not sure how to do this one? It's geometry.
Answers
Answer:
x = 20
Step-by-step explanation:
These two angles are corresponding angles which means that they sum to 180. You can formulate an equation by writing it as, 3x - 10 + 5x + 30 = 180. Once you simplify it, you end up with 8x = 160 which equals 20. Hope this helps.
Given the table, what is the linear equation?
x y
1 7
2 10
3 13
4 16
Answers
Answer:
yes
Step-by-step explanation:
I think this is true. I haven’t done this in a few years.
Claire buys an item with a normal price of $24 but save six dollars by using a coupon what percentage off is this coupon
Answers
Answer:
[tex]\huge\boxed{\sf 25 \% \ off}[/tex]
Step-by-step explanation:
Normal Price = $ 24
Saved = $ 6
Discount %age:
[tex]\sf \frac{6}{24} * 100 \%\\\\\frac{1}{4} * 100\%\\\\= 25 \%[/tex]
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807PLZ HELP I BEG I REALLY NEED HELP :)
Answers
Answer:
A
Step-by-step explanation:
merry christmas whats 1 + 1 help me
Answers
Merry Christmas thank you!
Answer:
two
Thanks!!
Step-by-step explanation:
A local eat-in pizza restaurant wants to investigate the possibility of starting to deliver pizzas. The owner of the store has determined that home delivery will be successful if the average time spent on the deliveries does not exceed 30 minutes. What type of tail is this test using?
Answers
Answer:
Right tailed test
Step-by-step explanation:
The null hypothesis is:
[tex]H_o: \mu \le 30[/tex]
The alternative hypothesis is:
[tex]H_a: \mu > 30[/tex]
This is a right-tailed test since the alternative hypothesis is greater than 30
Suppose the level of significance is 0.05 and we are given a p-value less than 0.05.
Then, we reject the null hypothesis.
Which matrix equation represents this linear system?
2x-5y=-7
4x+3y=-1
Answers
Answer: C
Step-by-step explanation: I just took the exam
You work as a cashier for a grocery store and earn $5 per hour. You also mow lawns and earn $10 per hour. You want to earn at least $50
per week, but would like to work no more than 10 hours per week.
Which system of inequalities, along with y0 andx
0, would you use to solve the real-world problem?
Answers
The required inequalities are x + y ≤ 10 and 5x + 10y ≥ 50
What is an inequality?A relationship between two expressions or values that are not equal to each other is called inequality.
Given that, You work as a cashier for a grocery store and earn $5 per hour. You also mow lawns and earn $10 per hour. You want to earn at least $50 per week, but would like to work no more than 10 hours per week.
Let, you work at grocery story (x), and you work mowing lawns (y)
You want to work no more than 10 hrs
So, first inequality will deal with hrs.
x + y ≤ 10....(i)
A less than or equal to sign tells that you do not want to work more than 10 hrs, but you can still work 10 hrs, so we include the equal sign as well.
And,
Grocery store (x) earning $5 per hr and lawn mowing (y) earning $10 per hr, making at least $50...
Now we will make an inequality dealing with the $
5x + 10y ≥ 50.....(ii)
A greater than or equal to sign tells that, you want to make 50 or more, so we include the equal sign.
So, the inequalities are :
x + y ≤ 10
5x + 10y ≥ 50
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Which part of this graph shows a nonlinear relationship?
A. 4
B. 2
C. 3
D. 1
Answers
Answer:
D.1
Step-by-step explanation:
It's the only line with a curve.
Enter the value of arccos(0.21) as a decimal to the nearest hundredth of a degree in the box.
Answers
Answer:
77.88
Step-by-step explanation:
just did the test!
The solution is 77.88°
The value of arc cos ( 0.21 ) is 77.88°
What are trigonometric relations?
Trigonometry is the study of the relationships between the angles and the lengths of the sides of triangles
The six trigonometric functions are sin , cos , tan , cosec , sec and cot
Let the angle be θ , such that
sin θ = opposite / hypotenuse
cos θ = adjacent / hypotenuse
tan θ = opposite / adjacent
tan θ = sin θ / cos θ
cosec θ = 1/sin θ
sec θ = 1/cos θ
cot θ = 1/tan θ
Given data ,
Let the angle be represented as A
Now , the value of A is
A = arc cos ( 0.21 )
The value of arc cos ( 0.21 ) = 1.35922137 rad
The value of 1 rad = ( 180°/π ) degrees
So , 1.35922137 rad = 1.35922137 ( 180°/π ) degrees
On simplifying the equation , we get
The value of arc cos ( 0.21 ) = 77.8776478 degrees
Rounding to the nearest hundredth , we get
The value of arc cos ( 0.21 ) = 77.88 degrees
Hence , the measure of arc cos ( 0.21 ) is 77.88°
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If |x| + 3 = 9, then x = ?
Answers
Answer:
x can equal -6 or 6
Step-by-step explanation:
absolute value bars get rid of negative simbols and make it always positive
Answer:
Step-by-step explanation:
9-3=6
X=6
What is the slope of the line y= -121x + 200 ??
Answers
Answer:
Slope = - 121
Step-by-step explanation:
Step 1:
y = mx + b Slope Intercept Form
Step 2:
m = Slope
Step 3:
y = - 121x + 200 Equation
Answer:
Slope = - 121
Hope This Helps :)
Answer:
-121X
Step-by-step explanation:
In an equation, x= the slope, and the number that comes after is the y intercept. So 200 would be where the line starts, and would have a negative slope of -121x
I hope this helps! :)
Witch value of x makes the equation 24x+16=-2(6x-8) true?
Answers
Answer:
X = 0
Step-by-step explanation:
Because if X equaled 0 then both sides would be equaled to 16.
5. Which graph shows a line with the same y-intercept as the graph of 10x-16y=-40?
Answers
Answer: B
Step-by-step explanation:
Option A is correct by observation we can see when (x,y) = (0,5/2) it satisfies the given equation 10x - 16y = -40
What is a linear equation in two variables ?A linear equation in two variable is an alzebraic equation which has highest degree of 1 and contains two variables.
A linear equation in two variables infinite number of solution for each value of x there is a corresponding y value.
In the given question when value of x is 0 the corresponding value of y is 2 and half.The equation of the graph 10x - 16y = -40 satisfies the given values.
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Which of the following tables represents a function
Answers
a class of 40 students elected a class president there were 12 votes for candidate a and 18 votes for candidate b the remaining students in the class did not vote which expression gives the percent of Voters who voted for candidate a
Answers
Answer:
10
Step-by-step explanation:
18 + 12 = 30 so it 40 student so it is 10 .
Answer:
12/12 + 18 = 100
Step-by-step explanation:
Use calculator
The midpoint of AB is M(4.-2). One endpoint is A(-2,6). What is the length of AB ?
5 units
10 units
20 units
28 units
None of these
Answers
Answer:
AB = 20 units
Step-by-step explanation:
Given the coordinate midpoint M(4.-2) and A(-2,6), we are to find the length AB. To get that, we need to get the coordinate of B first as shown
M(X, Y) = [(x1+x2/2, y1+y2/2]
X = x1+x2/2
4 = -2+x2/2
8 = -2+x2
x2 = 8+2
x2 = 10
Y = y1+y2/2
-2 = 6+y2/2
-4 = 6+y2
y2 = -4-6
y2 = -10
Hence the coordinate of B is (10, -10)
Recall that A =(-2, 6)
Get AB;
AB = √(x2-x1)²+(y2-y1)²
AB = √(-2-10)²+(6+10)²
AB = √(-12)²+(16)²
AB = √144+256
AB = √400
AB = 20 units
Layla emptied out her change jar to buy a new binder for school. She found 147 coins consisting of dimes and nickels that totaled $11.65. Write a system of equations that could be used to determine how many dimes, d, and how many nickels, n, Layla had in her change jar.
Answers
Answer:
d + n = 147
0.10d + 0.05n = 11.65
d = 86, n = 61
Step-by-step explanation:
Let
Number of dimes = d
Number of nickels = n
Total coins = 147
Total value = $11.65
d + n = 147 (1)
0.10d + 0.05n = 11.65 (2)
From (1)
d = 147 - n
Substitute d = 147 - n into
0.10d + 0.05n = 11.65
0.10(147 - n) + 0.05n = 11.65
14.7 - 0.10n + 0.05n = 11.65
- 0.10n + 0.05n = 11.65 - 14.7
-0.05n = -3.05
n = -3.05 / -0.05
= 61
n = 61
Substitute n = 61 into
d + n = 147
d + 61 = 147
d = 147 - 61
d = 86
megan solved the following exponential equation for x. what did she do wrong
Answers
Answer:
take a better photo this is blurry
Step-by-step explanation:
A line of the equation has a slope of a/b, where a and b are integers.
What is the slope of the line that is perpendicular to this line?
Answers
Answer:
-b/a
Step-by-step explanation:
The slopes of perpendicular lines are negative reciprocals. That means that their product is -1.
slope of line = a/b
slope of perpendicular = -b/a
uhhh help me , i give brainliest
Answers
Answer:
36
Step-by-step explanation:
x² + 12x - 40 = 0
x² + 12x = 40
Now, 12/2 = 6. So add 6² = 36 to each side
x² + 12x + 36 = 40 +36
Please help!!
What is the translation image of (6 , 8) after the translation (x,y)→(x+1, y+2)?
Answers
HELP ASAP!!!
Taylor starts with $117 in her bank account. She deposits (puts in) $12.50 each week. What
expression can be used to determine her bank account balance after w weeks?
Answers
Answer:
117-12.50=w
Step-by-step explanation:
branliest plzzzzz
simplify the following expression
(5x + x + 2)
Answers
Answer:
6x+2
Step-by-step explanation:
I don't understand this either what's this
Answers
Answer:
It's called a transversal lol
Step-by-step explanation:
I know that you were thinking that there should be a letter somewhere but you can't figure out the name of a line unless the name is shown lol
Pls mark Brainliest.
A bakery has 36 glazed donuts on display. This is 80% of the total number of donuts. What is the total number of donuts in the bakery?
Answers
Answer:
it is 64.8, but you have to round to the nearest number, so i would say 65 :)
Step-by-step explanation:
Answer:
45
Step-by-step explanation:
% means out of 100, so 80% is 80/100
Let's divide 100/80 to find a scale we can use to multiply 36, 100/80 =
36 times 1.25 = 45
There's 45 donuts
Double check:
45(80/100) = 36, we're right
Find the distance between the two points rounding to the nearest tenth (if necessary).
(-4,2) and (2, -6)
Answer: _____
Answers
Answer:
d = 10Step-by-step explanation:
[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\\\(-4,2)\quad\implies\quad x_1=-4\,,\ y_1=2\\\\(2,-6)\quad\implies\quad x_2=2\,,\ y_2=-6\\\\d=\sqrt{(2+4)^2+(-6-2)^2}= \sqrt{6^2+(-8)^2}= \sqrt{26+64}= \sqrt{100}=10[/tex]