Answer:
27.89feet
Step-by-step explanation:
Given the following
Length of the ladder = 32foot = hypotenuse
Angle of elevation = 29.37°
Required
Distance of the building from the base of the ladder (adjacent)
Using the SOH CAH TOA identity
Cos theta = adj/hyp
Cos 29.37° = d/32
d = 32cos29.37°
d = 32(0.8715)
d = 27.89 feet
Hence the required distance is 27.89feet
Answer:
27.89 feet
Step-by-step explanation:
Hope this helps :)
The heights (in inches) of males in the United States are believed to be Normally distributed with mean LaTeX: \muμ. The average height of a random sample of twenty-five American adult males is found to be H = 69.72 inches and the standard deviation of the twenty-five heights is found to be s = 4.15. The standard error of H is = 4.15. A 90% confidence interval for ? is?
Please help!!
Which expressions are equivalent to 64 Superscript 1? Check all that apply.
A) 4 cubed
B) 3 Superscript 4
C) 8 squared
D) 2 Superscript 8
E) 6 squared
F) 2 Superscript 6
Answer:
I believe it would be C, 8 squared.
Step-by-step explanation:
8 squared means to multiply 8 twice. Not by two, 8 times 8. If you do that, you will get 64. This means that 8 squared is equivalent to 64'1
Answer:
C
Step-by-step explanation:
8. Sheila and her study partner flipped a coin 120 times. They flipped 70 heads and 50 tails. What is the
experimental probability that the next flip will be heads up?
F 58%
58%
G 50%
H 41%
J 70%
Answer:
.
Step-by-step explanation:
Answer:
F
Step-by-step explanation:
To find the amount of percent a value takes up, here's the formula:
Let X = heads
Let y = amount of coinflips
Let z = percent of coinflips are heads
z=x/y
PLEASE 100 POINTS Write the polynomial in factored form and explain how you did it.
PLEASE PLEASE HELP!! ITS DUE TODAY!!
10.
Find the approximate area of the lake whose shape is overlaid on the grid below. Each
square of the grid represents one square mile. (3 points)
Answer:
7.5 square miles
Step-by-step explanation:
Begin by counting the number of squares that the lake completely or almost completely covers. There are six of these, as indicated by an X. Then find the squares which are about half covered by the lake. These are indicated by a Y. There are three of these. The remainder of the squares that contain some portion of the lake are less than half covered, so we will not count them.
Irregular Object
1 square = 1 sq. mile
Each X counts as one square mile, and each Y counts as 0.5 (12) of a square mile.
(6 × 1) + (3 × 0.5) = 6 + 1.5 = 7.5
The area of the lake is about 7.5 square miles.
The approximate area of the lake whose shape is overlaid on the grid below is 7.5 square miles
Begin by counting the number of squares that the lake completely or almost completely covers. There are six of these, as indicated by an X. Then find the squares which are about half covered by the lake. These are indicated by a Y.
There are three of these. The remainder of the squares that contain some portion of the lake are less than half covered, so we will not count them.
Irregular Object
1 square = 1 sq. mile
Each X counts as one square mile, and each Y counts as 0.5 (12) of a square mile.
(6 × 1) + (3 × 0.5) = 6 + 1.5 = 7.5
The area of the lake is about 7.5 square miles.
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Number 10 please help 10 points no links pleAse
Answer:
A. (8,14)
Step-by-step explanation:
When looking at the chart pairs there is no other matching option than (8,14).
You have to look in at each column to see the pairs (ex. 8,16 and 4,10).
a business owner pays $500 a week for rent.He also pays an employee $16 an hour.If his total weekly expenses are $1,172 ,how many hours did his employee work?
What is the equivalent exponential expression for the radical expression below help last time
Answer:
A
Step-by-step explanation:
B is wrong because 5^2 = 25
C is wrong because 5 is not equal to √5
D is wrong because 25 is not √5 but 5^2
Ralph and Jody go to the shop to buy potato chips and candy bars.
Ralph buys 3 bags of potato chips and 4 candy bars. He spends
Jody buys 4 bags of potato chips and 2 candy bars. She spends $3.00.
Later Clancy joins Ralph and Jody and asks to buy one bag of potato chips and one candy bar from
them. They need to work out how much he should pay.
Ralph writes
3p+ 4b = 375
1. If p stands for the cost, in cents, of a bag of potato chips and b stands for the cost, in cents, of a
candy bar, what does the 375 in Ralph's equation mean?
Answer:
375 represents the amount Ralph paid for 3 bags of potato and 4 candy bars
Bag of potato = 45 cent
Candy = 60 cents
Step-by-step explanation:
375 represents the amount Ralph paid for 3 bags of potato and 4 candy bars
3p + 4b = 375 - - (1)
4p + 2b = 300 ---(2)
From (2)
4p = 300 - 2b
p = 75 - 0.5b
Put b = 75 - 0.5b
3(75 - 0.5b) + 4b = 375
225 - 1.5b + 4b = 375
225 + 2.5b = 375
2.5b = 375 - 225
2.5b = 150
b = 150 / 2.5
b = 60
3p + 4(60) = 375
3p + 240 = 375
3p = 375 - 240
3p = 135
p = 45
Bag of potato = 45 cent
Candy = 60 cents
A cube has a volume of 27 mm. What is the length of each edge of the cube? Plz help
Answer:
The length of each edge of the cube is 3 mm
Step-by-step explanation:
A cube has a volume of 27 mm.
Volume of cube = l³
l³ = 27 mm
l = 3 mm
Thus, The length of each edge of the cube is 3 mm
-TheUnknownScientist
hi someone fill out this chart pls. will give brainly if u do it correctly
Answer:
1 → 10
2 → 1000
3 → 16
4 → 64
5 → 6
6 → 36
7 → 7
8 → 343
Plzzzz help worth 30 points plzzzz help
Answer:
$0.70
Step-by-step explanation:
What type of algebraic questions is 2x+5
A- Linear equation
B- Quadratic equation
C- Cubic equation
D- None of these
Answer:
Linear equation
Step-by-step explanation:
Linear equation are first-order polynomials, this kind of expressions has the general form:
y = mx + b
Where m is the slope and b the y-intercept.
The given equation y = 2x + 5, has the form of a linear equation, whose slope equals 2 and intercept equals 5.
Answer:
A
Step-by-step explanation:
250 students in a high school senior class are surveyed about what majors they intend to declare in college. Of the 250 students, 100 plan to major in mathematics, 80 plan to major in computer science and 20 plan to pursue a double major in mathematics and computer science.
Let M be the even that a randomly selected student plans to major in mathematics and C be the event that a randomly selected student plans to major in computer science.
What is P(M), the probability that a student plans to major in mathematics?
What is P(C), the probability that a student plans to major in computer science?
What is P(M and C), the probability that a student decided to major in mathematics and computer science?
What is P(M or C), the probability that a student has chosen to major in mathematics or computer science?
Answer: Program C allows students to earn a Mathematics degree (B.A. or B.S.) by combining courses in the Department of Mathematics with courses from one other department. In most areas of specializations, mathematical and/or quantitative courses in other departments are part of the math degree program. All Program C students take a minimum of five core math courses: Calculus I, Calculus II, Calculus III, Introduction to Linear Algebra, and a proofs course, usually either Introduction to Abstract Algebra or Fundamental Properties of Spaces and Functions I.
Step-by-step explanation: Hope this helps.
Answer:
2/5
8/25
2/25
16/25
Step-by-step explanation:
On the coordinate plane, mark all points (x,y) such that (A) y=x+3, (B) y=-x+3, (C) y=|x|+3
Answer:
the coordinates of A is: (0,3) the coordinates of B is: (1,2) the coordinates of C is:
Step-by-step explanation:
The graphs of the 3 given functions can be seen in the image attached below.
How to graph the given points?To graph all the points (x, y) in a relation:
y = f(x)
Is equivalent to graphing the function.
In this case, we just want to graph the 3 lines:
y = x + 3
y = -x + 3
y = |x| + 3
To graph the first two, we need to find two points on the functions and then connect them with a line.
For the third function we just need to move 3 units up the parent absolute value function.
The 3 graphs can be seen below. (the third function lies on top of the first two, so it is hard to see).
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What fraction is equivalent to 75% of 1/3
Answer:
1/4
Step-by-step explanation:
HALP PLEASE!!!!!!!! I RRALLY NEED TO GET THIS DONE
Answer:
E = (-3a, -2b)
O = (3a, 2b)
M = (3a, -2b)
Step-by-step explanation:
Write the equation in standard form for a circle that has a diameter with endpoints (8,0) and (-8,0)
Answer:
x²+y² = 64
Step-by-step explanation:
The standard form of writing the equation of a circle is expressed as;
(x-a)²+(y-b)² = r² where;
(a, b) is the centre of the circle
r is the radius of the circle
Given the diameter of the circle with endpoints (8,0) and (-8, 0)
d = √(x2-x1)²+(y2-y1)²
d = √(-8-8)²+(0-0)²
d = √(-16)²
d = √256
d = 16
radius r = 16/2
r = 8
The centre of the circle will be the midpoint of the coordinates
M = (8-8/2, 0+0/2)
M = (0/2, 0/2)
M = (0,0)
Hence the centre is at (0,0)
Get the required equation
Recall that (x-a)²+(y-b)² = r²
Substitute the centre and the radius
(x-0)²+(y-0)² = 8²
x²+y² = 64
This gives the required equation
9. Zane owes his dad money for his cell phone that he
lost. So far, Zane has paid his dad $23, and he will pay
his dad an additional $45 each month until he has
repaid him for the phone. Which equation shows the
relationship between m, the number of months that
Zane has been making payments and t, the total
amount he has paid his dad?
Answer:
T=45m+23
Step-by-step explanation:
Answer:
T=45m+23
Step-by-step explanation:
Given a set of data that is skewed right, there is at least ___% of the data within three standard deviations.
Answer:
75%
Step-by-step explanation:
The right skewed data set means the data mostly lies in the right tail. There is majority of data present in the right tail of the data set. The mean, median and mod all are different for the rightly skewed data set.
What is the volume of the prism below?
A. 56 units 3
B. 144 units
C. 288 units
D. 180 units
Answer:
C ,288Step-by-step explanation:
hope this helpsmaggie needs to make 6 tablecloth's she uses 3 3/5 yards of fabric for each tablecloth which is the shortest roll that will have enough fabric to make all the tablecloths
Answer:
21 3/5
Step-by-step explanation:
I think the answer is 21 3/5 because
6×3 3/5=21 3/5 but I'm not positive.
use the graph f(x)=-x^2+8x+20 to determine the values of m for which m= -x^2+8x+m=0 will have two positive roots
Answer:
first root -2 and the second is 10
Step-by-step explanation:
delta=b squared-4ac=64-4(-1)(20)=144>0
then we have 2 +roots
x1= -b+ radical delta/2a =-2
x2=-b - radical delta/2a=10
The value of m for which -x² +8x+m=0 to have two positive roots is m ≤ 0.
What is a polynomial?A polynomial is an expression that involves the addition, subtraction and multiplication of variables.
A quadratic polynomial is a polynomial of degree 2.
Given that:
f(x)=-x² + 8x + 20
To determine the values of m for which -x² +8x+m=0 would have two positive roots
For -x² +8x+m=0 to have two positive roots, m ≤ 0.
The value of m for which -x² +8x+m=0 to have two positive roots is m ≤ 0.
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PLEASE!!! I need this turned in tonightttt
Answer:
8 like I'm trying maybe I'll be good at math someday
Step-by-step explanation:
hehe
Write an equation and solve. If hamburgers cost $4 each, how many can you buy with $12? a. 4x = 12; 3 hamburgers c. 12x = 4; 3 hamburgers b. 12 - 4x = 8; 8 hamburgers d. 4x - 12 = 8; 5 hamburgers Please select the best answer from the choices provided A B C D
2 1/2 + 2 1/3 + 3 2/3
Answer:
8 1/2
Step-by-step explanation:
2 1/2 + 2 1/3 + 3 2/3
= 2 3/6 + 2 2/6 + 3 4/6
= 7 9/6
= 8 3/6
= 8 1/2
Naomi used 2/3 gallon of gas to drive 15^1/5 miles.At this rate how many miles can naomi car travel per gallon
Answer:
22 4/5 miles
Step-by-step explanation:
miles per gallon = total miles / total gallons used
[tex]15\frac{1}{5}[/tex] ÷[tex]\frac{2}{3}[/tex]
convert the mixed fraction to an improper fraction
[tex]\frac{76}{5}[/tex] × [tex]\frac{3}{2}[/tex] = [tex]\frac{114}{5}[/tex] = 22 4/5 miles
True or False
Is 2-1 = 21 ?
Answer:
false
Step-by-step explanation:
How many yards are equal to 144 inches? (15 points)
Select one:
a. 4 yards
b. 12 yards
c. 36 yards
d. 5,184 yards
Answer:
A- 4 yards
Step-by-step explanation:
Hope this helps!
Have a nice day <3
After changing the unit of 144 inches into yards the number equivalent to 144 inches is 4 yards. Hence option (a) is true.
Given that,
Change the number 144 inches into yards.
Used the concept of measurement unit which stated that,
A measurement unit is a standard quality used to express a physical quantity. Also, it refers to the comparison between the unknown quantity with the known quantity.
Since we know that,
1 yards = 36 inches
1 inch = 1/36 yards
So, we can change the number 144 inches into yards,
1 inch = 1/36 yards
144 inches = 144/36 yards
= 4 yards
Therefore, 144 inches is equivalent to 4 inches.
Option (a) is true.
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George bought a rose bush at retail for $24. The wholesale price was $15. What was the markup?
Answer:
60%
Step-by-step explanation:
multiply 15 and 60%
Have a nice day!