select the correct answer
Answer:
b
Step-by-step explanation:
cause i say so.
A hill slopes at an angle of 12.5° with the horizontal. From the base of the hill, the angle of inclination of a 459 foot tower at the top
of the hill is 36. How much rope would be required to reach from the top of the tower to the bottom of the hill (round to the nearest
integer)?
A)
188 feet
B)
424 feet
C)
665 feet
D)
1124 feet
Answer: D. 1124
Step-by-step explanation:
Usatestpre
A chemist has 100 ml of 25% acid solution. how much of the solution does she need to drain and replace with 70% acid solution to obtain 100 ml of 60% acid solution?
Answer:
The proportion of acid at 70% that the chemist must use will be 77.8%, while the remaining 22.2% will be acid at 25%.
Step-by-step explanation:
Since the chemist has 100 ml of solution with 25% acid, and wants to obtain a solution of 60% acid by mixing the first with another 70% acid solution, to determine how much of each solution the chemical should use necessary to perform the following calculation:
70 x 1 + 25 x 0 = 70
70 x 0.9 + 25 x 0.1 = 65.5
70 x 0.8 + 25 x 0.2 = 61
70 x 0.7 + 25 x 0.3 = 56.5
Therefore, the proportion to be used is between 70% and 80% of acid at 70%, and 20% to 30% of acid at 25%.
70 x 0.75 + 25 x 0.25 = 58.75
70 x 0.76 + 25 x 0.24 = 59.2
70 x 0.77 + 25 x 0.23 = 59.65
70 x 0.78 + 25 x 0.22 = 60.1
Thus, the proportion should be between 77 and 78% of acid at 70% and 22 and 23% of acid at 25%.
70 x 0.778 + 25 x 0.222 = 60.01
Thus, finally, the proportion of acid at 70% that the chemist must use will be 77.8%, while the remaining 22.2% will be acid at 25%.
Really need help with this problem?
Answer:
6,400
Step-by-step explanation:
I finished I-Ready I dont do it anymore its easy
PLS HELPPPPP!!!!!!!!!!!!!!!!!!
what is 2/5 times 11 in simplest form?
Answer:
4.4 would you let me know if you need an explanation and pls don't delete.
Hmmmm i think its 5/22
Step-by-step explanation:
So basically how i got it was 2/5*11
And that got me 5/22
I do not think you could simplify this
Either I'm very smooth brain or you can't simplify 5/22
Approximately how many times greater is 374,000 than 22,000?
Answer:
352,000
Step-by-step explanation:
Subtract 374,000 by 22,000 and you will get 352,000 as your answer
The number 374000 is greater then 22000 by exactly 25200 amount.
What is mathematic expression?
A mathematical expression is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Here, to find out by how much times the number 374000 is greater then the number 22000 we simply subtract the number 374000 by 22000 which comes out be 35200.
It should be noted that, To cross verify the answer we can add 35200 with 22000 it must be equal to 374000.
374000 - 22000 = 352000
Therefore, the number 374000 is greater then 22000 by exactly 25200 amount.
Read more about addition here :
https://brainly.in/question/10133124
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If Michael and Imani add an 18% tip to the bill, what does their lunch cost in total? Enter your answer in the box.
Answer:
$35.22
Step-by-step explanation:
The bill would be $29.85, and the total would be $35.22
Answer:
part A is $32.24 NOt sure what part B is yet
Step-by-step explanation:
if Scott types 210 words in 5 minutes how many words can he type in a minute
Answer:
42
Step-by-step explanation:
210 divided by 5 is 42
Anyone know- I need help.
Answer: 5on x axis 2 on the y axis
Answer:
The answer would be (5,2)
:D Have a Great Day :D
PLEASE HELP
Write an equation for a line perpendicular to f(x)=5x-1 and passing through the point (5,20).
Answer:
f(x)=-5x+1
Step-by-step explanation:
i hope this works for you
2y=2x+6
Solve for y
Answer:
y=x+3
Step-by-step explanation:
Answer:
y = x + 3
Step-by-step explanation:
Divide each term by 2 and simplify.
Ricardo ran the 60-meter sprint in 5 seconds. Which best represents Ricardo’s rate in meters per second?
Answer:
1.8 or less
Step-by-step explanation:
girls 1.8 or less
Ricardo’s rate in meters per second is equivalent to 12 meters per second.
What is rate of change?Rate is defined as the rate of change of one variable with respect to other variable.{r} = dy/dx
In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.Given is that Ricardo ran the 60-meter sprint in 5 s.
Ricardo’s rate in meters per second
r = d/t
r = 60/5
r = 12
Therefore, Ricardo’s rate in meters per second is equivalent to 12 meters per second.
To solve more questions on expression evaluation, visit the link below -
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PLEASE HELP MEEEEE FASTTT
Answer:
-63
Step-by-step explanation:
PEMDAS stands for:
P -> Parentheses
E -> Exponents
M -> Multiplication (left to right)
D -> Division (left to right)
A -> Addition (left to right)
S -> Subtraction (left to right)
So in this problem, we can't evaluate the parentheses unless we evaluate the exponent first:
(-25+4^2)*7
(-25+16)*7
Next, we evaluate the parentheses by adding from left to right since there's no multiplication or division in the parentheses:
(-25+16)*7
(-9)*7
Lastly, we do multiplication:
(-9)*7
-63
Thus, our final answer is -63
I need help please *an image is attached*
Answer:
D
Step-by-step explanation:
Other choices dont make sense to the question being asked.
The Y axis is not crossed at -2 so C and D is out of question
The line isnt going downward from left to right so A is out
Please Help Meeee! Its a multiple answers..
Answer:
B C E
Step-by-step explanation:
trust me... its too hard to explain
PLZ HELP TROLL ANSWERS GET REPORTED MAKE IT UNDERSTANDABLE Match each expression to its value.
Answer:
7-5 => 2-7+5 => -2-7-5 => -127-(-5) => 12Step-by-step explanation:
Lets solve the expressions one by one
1. 7-5
we can see that it is simple subtraction. A smaller number is being subtracted from a large number.
So the answer is 2
2. -7+5
There are two numbers with different signs. When there is a number with plus and a number with minus both quantities are subtracted but the larger quantity determines the sign of the answer.
In this case, 7 is larger and has negative sign, the answer will be -2
3. -7-5
When there are two numbers with minus sign they are added but the answer has the minus sign with it.
So the answer will be: -12
4. 7-(-5)
When minus is multiplied with minus it converts to positive
So
[tex]= 7-(-5) = 7+5 = 12[/tex]
Hence,
7-5 => 2-7+5 => -2-7-5 => -127-(-5) => 12Fine the values of x and y. Please explain .
1. Combine like terms in 2 + x + 3y + 4x + 2y + 5.
2. Combine like terms in 2x + 3xy + 4 + 5yx.
please due in 5 minutes please
Answer:
Detailed step by step solutions to your Combining like terms problems online with our math solver and calculator. Solved exercises of Combining like terms. Calculators Topics Solving Methods Go Premium. ... $-2+9y-4x-2y-3x$ 3. Combining like terms $9y$ and $-2y$ $-2+7y-4x-3x$ 4. Combining like terms $-4x$ and $-3x$ $-2+7y-7x$ Final Answer $-2 ...
Step-by-step explanation:
Find 4/5% of $75,000.
Answer:
60,000
Step-by-step explanation:
Answer:
3375
Step-by-step explanation:
Use synthetic division to determine f(-2) for the function f (x) = 9x^3 - 18x^2 - 16x + 32
Answer: -80
Step-by-step explanation:
A store is offering a discount on shorts of 23.4%.The original price of the shirt is $13.24.how much will you have to pay the clerk
Answer:
Step-by-step explanation:
Hi
Answer:
13.24
Step-by-step explanation:
Your buying a shirt not shorts
9 out of 36 students wear glasses what percent of students wear glasses
Answer:
25%
Step-by-step explanation:
9 out of 36 is equal to 9/36, which equals 1/4.
1/4 is a quarter of a whole. a quarter is 25%
25%
9/36 = 1/4 = 0.25 = 25%
What is the probability that the highest level of education of an adult is a high school diploma, given that they have completed at least one of the education levels shown?
A. 0.04
B. 0.16
C. 0.47
D. 0.84
Answer:
Probability = 0.04 (Approx)
Step-by-step explanation:
Given:
High school diploma = 0.03
Total holder = 0.03+0.44+0.26+0.11 = 0.84
Find:
Probability
Computation:
Probability = 0.03 / 0.84
Probability = 0.0357
Probability = 0.04 (Approx)
What is the area in square feet 6.ft, 8ft
Answer:
48 Squared Feet
Step-by-step explanation:
6 * 8 = 48
Answer:
48ft2
Step-by-step explanation:
6ft x 8ft = 48ft2
Answer - 48ft2
If f x) = [x – 3], find f (5.6 ).
Answer:
2.6
Step-by-step explanation:
We have the function f (x) = [x – 3]
We need to inster the value required which is 5.6
f (5.6) = [5.6 – 3]=
5.6-3 =2.6
f (5.6)=2.6
HELP^^^ ITS 7TH GRADE MATH
Answer:
13
Step-by-step explanation:
count outside lines
Answer:
Perimeter: 13
heeeeeeeeeeeeellllllllllllpppppppppppppp please and thank you hehe :]
Answer:
Mean is 8 MAD is 4.29
Step-by-step explanation:
Three apples (x) plus two
oranges (y) costs $16.
Five apples plus two
oranges costs $24. Hov
muon do each apples and
oranges cost?
i need the awnser ASAP plz!!
Answer:
it is D
Step-by-step explanation:
the ratio is 1.5 so multiply 15 by 1.5
question is in png pls some1 help.
Answer:
They r both 60°
Step-by-step explanation:
By the transversal lines law x=y
And by the parallelograms law x=60°
I hope I helped pls give me brainliest