Answer:
volume of cylinder
v = πr²
v = 22/7 x 21²
v = 1385.441 cm³
Step-by-step explanation:
Use the distributive property to remove the parentheses?
-8(-4w-3v+6)
Answer:
32w + 24v - 48
Step-by-step explanation:
- 8(- 4w - 3v + 6) ← multiply each term in the parenthesis by - 8
= 32w + 24v - 48
Classify this triangle by its sides.
Answer:
scalene
Step-by-step explanation:
it has no sides equal
Working alone, Wilbur can mop a
warehouse in 11 hours. Perry can mop the
same warehouse in 9 hours. Find how
long it would take them if they worked
together.
It would be 20 hours
Step-by-step explanation:
let me know if I am wrong thxs
3.) What relationship do angles 1 and 2 have? Check all that apply.
1 Supplementary
2 Complementary
3 Vertical
4 Adjacent
Identify the initial conditions y(0) and y'(0) for the vertical motion of an object, if the object is thrown downward at a velocity of 6 m/s from a height of 30m. (take the origin to be on the ground)
Answer:
The right solution is "y(0) = 30 m" and "y'(0) = -6 m/s²".
Step-by-step explanation:
Given,
Velocity,
u = -6 m/s
Height,
h = 30 m
Now,
By using shifting of origin, we get
⇒ [tex](y-30)=-6t+\frac{1}{2}(-9.8)t^2[/tex]
[tex]y-30=-6t-4.9t^2[/tex]
[tex]y=30-6t-4.9t^2[/tex]
hence,
The value of y(0) is:
y(0) = [tex]30-0-0[/tex]
= [tex]30 \ m[/tex]
The value of y'(0) is:
y'(t) = [tex]-6-9.8t[/tex]
y'(0) = [tex]-6 \ m/s^2[/tex]
A kangaroo hopped 1/3 of the distance to the lake with her baby in her pouch. She hopped the remaining 7,407, comma, 40 yards without her baby in her pouch. How many miles did the kangaroo hop to the lake?
Answer:
the answer is 5.
Step-by-step explanation:
If you divide 8800 by 1760, the answer will be 5.
HELP! WILL MARK BRAINLIST!!!!!!
IM 20 MIN AWAY FROM FAILING PLZZZ HELPPPP
Answer:
13 and 32
Step-by-step explanation:
let one number be x
Then the other number is x + 19 , then
x + x + 19 = 45
2x + 19 = 45 ( subtract 19 from both sides )
2x = 26 ( divide both sides by 2 )
x = 13
The 2 numbers are 13 and 13 + 19 = 32
Find the z-score for which a total probability of 0.86 falls more than z standard deviations (in either direction) from the mean.
Answer:
Z-score = 0.1764 ≈ 0.18
Step-by-step explanation:
Z-score for Total probability of 0.86
This can found as shown below
P( Z < -Z ) + P( Z > Z ) = 0.86
= P ( Z < -Z ) + P ( Z < - Z ) = 0.86
= P ( Z < - Z ) = 0.86 / 2 = 0.43
hence Z-score = 0.1764 ( from standard Normal table )
What are m<1 and m<2? Please help me
Answer:
Your answer is B
Step-by-step explanation:
The rule for angles is that 115 and the angles right next to it, the ones that form the x, will equal 180. That means all you have to do is 115-180=65.
Another rule is that the interior angles of a triangle will be 180, so you add the angles we know in each triangle, 80+65+angle 1 = 180. If you do this correctly you should get angle 1 to be 35. Then you repeat on the opposite side except this time the angles are 85+65+angle 2 = 180. If you do this one correct you should get 30. Which makes your answer B.
Sorry if this is confusing the book will have better explanations than I can give.
The point A(–1, 4) is translated five units right and three units down. Which rule describes the translation?
A.) (x, y) right-arrow (x + 5, y + 3)
B.) (x, y) right-arrow (x + 5, y minus 3)
C.) (x, y) right-arrow (x + 3, y + 5)
D.) (x, y) right-arrow (x minus 3, y + 5)
Answer:
B
Step-by-step explanation:
cause I said
Answer:
b
Step-by-step explanation:
factorise fully 6x²-15x
Answer:
3x(2x-5)hope this helps
i need help
please solve all
Answer:
1) 37 degrees
2) 39 degrees
3) 27 degrees
4) 320 degrees
5) 136 degrees
Step-by-step explanation:
1) 81-44
2)98-59
3) a square is : 90-63
4) a full circle = 360-40
5) half a circle = 180-44
A survey of Lakeview High School students found that 72% of the students had eaten breakfast that morning. If two students are chosen at random from a group of 100 students, what is the probability that at least one of them did not eat breakfast that morning?
Answer:
4.26 * 10^-12
Step-by-step explanation:
Usibg the binomial probability relation :
P(x =x) = nCx * p^x * q^(n-x)
Probability of success = probability of not eating = 1 - 0.72 = 0.28
p = 0.28
q = 1 - p = 0.72
Probability that atleast one out of 2 chosen did not eat breakfast :
P(x ≥ 1) = p(x = 1) + p(x = 2)
P(x ≥ 1) = (100C1 * 0.28^1 * 0.72^99) + (100C2 * 0.28^2 * 0.72^98)
= 4.26 * 10^-12
Jackie had her hair done and gave her stylist a 20% tip. Her haircut and color was $120.
Answer:
She gave her stylist a 24 dollar tip.
;p
In the diagram below, dis parallel to co. What is the value of y?
CW
D
A. 120
B. 30
C. 90
D. 60
What is 75 percent of 28?
Answer:
21 is 75% of 28
Step-by-step explanation:
75% = 0.75
28(0.75) = 21
What percent of 315 is 126?
Answer:
40
Step-by-step explanation:
Percentage Calculator: 126 is what percent of 315? = 40.
Answer:
40 %
Step-by-step explanation:
To get the percent you do:
126 divided by 315
= .4
Phoebe andy and polly share 270 phoebe gets 3 times the amount as andy does who gets twice as much as polly
Answer:
Polly's money is 30, Andy's is 60, and Phoebe's is 180.
Step-by-step explanation:
Given that
Phoebe andy and polly share 270
Phoebe gets 3 times as andy
And, andy gets twice as much as polly
let us assume the following things
B be Phoebe's money
A be Andy's money
L be Polly's money
Now following equations should be used
B + A + L = 270 .........(1)
B = 3A............(2)
A = 2L .............(3)
So,
B = 3A
= 3 × (2L)
= 6L
Now put the equation 2 and equation 3 in equation 1
So,
6L + 2L + L = 270
9L = 270
L = 30
A = 2L
= 2(30)
= 60
B = 3A
= 3(60)
= 180
Therefore, Polly's money is 30, Andy's is 60, and Phoebe's is 180.
What is the quotation -4/5 divided by 2
Answer:
-0.4
Step-by-step explanation:
If a triangle has side lengths 7, 10, and 12, is it a right triangle??
Answer:
No. Remember, a right angle must have a 90 degree angle. We can find the lengths with the Pythagorean Theorem.
Step-by-step explanation:
Given the length 7, 10, and 12, we can assume that 12 is the hypotenuse (it is the longest length).
- we can use 7 and 10 interchangeably.
Fill in the equation, [tex]a^2 + b^2 = c^2[/tex]
where c = 12, and a or b = 7 or 10.
To indicate if the given lengths would form a right angle, we can only input 7 or 10, not both.
Therefore, [tex]7^2 + b^2 = 12^2[/tex] or [tex]10^2 + b^2 = 12^2[/tex]
[tex]7^2 + b^2 = 12^2[/tex] ==> 49 + b^2 = 144 ==> b= [tex]\sqrt{95[/tex] ==> 9.746
b= 9.7, not 10.
[tex]10^2 + b^2 = 12^2[/tex] ==> 100 + b^2 = 144 ==> b = [tex]\sqrt{44[/tex] ==> 6.633
b= 6.6, not 7.
Therefore, the lengths 7, 10, and 12, does NOT make a right triangle.
Hope this helps!
What are the ways to determine if a relation is a function? Select EACH correct
answer.
Answer:
Step-by-step explanation:
When the following quadratic equation is written in standard form, what is the value of "c"?
-3/4x^2+2=0
-8
-6
-2
Answer:
Then value is 2
Step-by-step explanation:
standard of quadratic is A[tex]x^{2}[/tex]+Bx+C=0
and 2 is where C is.
sorry for the bad explanation but, trust me I did this type of question in class yesterday
The rate of change is constant in each table. Find the rate of change. Explain what the rate of change means for the situation
Time (days):3,4,5,6 cost($):75,100,125,150
Answer:
The rate of change is 25 and that means the cost per day is $25
Step-by-step explanation:
Since we have a constant rate of change, we can select any two points, apply the slope formula
The slope formula is;
m = (y2-y1)/(x2-x1)
(x1,y1) = (3,75)
(x2,y2) = (6,150)
m = (150-75)/(6-3) = 75/3 = 25
What the rate of change means here is that the cost per day is $25
Leonel is building a circular table with a diameter of 5 feet. The wood costs $35.50 per square foot. How much will it cost Rafael to make the table? Use 3.14 to approximate π. Enter your answer in the box.
Answer:
$696.70
Step-by-step explanation:
The formula for the area of a circle is given as πr²
From the above question
π = 3.14
Diameter = 5 feet
Radius = Diameter/2 = 5 feet/2 = 2.5 feet
Hence,
The area of the circular table = 3.14 × 2.5²
= 19.625 ft² or 19.625 square foot
We are told that:
The wood costs $35.50 per square foot
Hence,
1 ft² = $35.50
19.625 ft² = x
Cross Multiply
x = 19.625 ft² × 35.50
x = $696.6875
Approximately = $696.70
Therefore, it will cost Rafael $696.70 to make the table.
Using powers of 10, which would be the best choice for the first number to subtract in the division problem 3910 ÷ 25?
Group of answer choices
2500
25,000
25
250
Answer:
2500Step-by-step explanation:
THIS IS MY ANSWER MARK BARINLITS PLEASEAnswer: 2500
Step-by-step explanation:
10000000000000000000% CORRECT!!
Please help!!
Answer the question below
Answer:
B
Step-by-step explanation:
a=25
b=1/5
c=1
d=25
Math math math math help
Answer:
The answer is B.
Step-by-step explanation:
You simply just simplify the expression. When you do this you get x to the third, 2x squared, and 4x. I hope this helps!!
Answer:
B
Step-by-step explanation:
x*x*x=x^3 (x cubed)
x*x=x^2 (x squared)
We CAN'T add up x's here.
They're from different families.
So, B is correct:)
Six out of the first ten vehicles that entered a parking lot were cars. Based on this information, if five hundred forty vehicles entered the parking lot, how many vehicles could be expected to be cars?
Answer:
x = number of cars = 324
Step-by-step explanation:
Total vehicles = 10
Cars = 6
Total vehicles : cars = 10 : 6
if five hundred forty vehicles entered the parking lot, how many vehicles could be expected to be cars?
Let
x = number of cars
Total vehicles : cars = 540 : x
Equate both ratios
10 : 6 = 540 : x
10/6 = 540/x
Cross product
10 * x = 6 * 540
10x = 3240
x = 3240/10
x = 324
x = number of cars = 324
Find the sum of 567.20, 890 & 12.901
Answer:
Use a calculator
Step-by-step explanation:
Step-by-step explanation:
567.20+890+12.9011470.101stay safe healthy and happy.