Answers
Answer:
r= -0.1
Step-by-step explanation:
Related Questions
Solve by factoring.
4m2−3m−27=0
Answers
Answer:
[tex]m = 3 m = - \frac{9}{4} [/tex]
Step-by-step explanation:
correct me if I'm wrong
the sum of the digits of a two - digit number is 14 . if the digits are reversed, the number increases by 36 . find the number .
Answers
Let the tens digit of the number be x .
ones digit = ( 14 - x ) ( since the sum of the 2 digits is 14 )
Two - Digit number = 10 ( tens digit ) + ones digit
Required number ,
10x + ( 14 - x ) 10x - x + 14 9x + 14Reversed number ,
10 ( 14 - x ) + x 140 - 10x + x 140 - 9xGiven ,
Reversed number - Required number = 36
✯ 140 - 9x - ( 9x + 14 ) = 36
✯ 140 - 9x - 9x - 14 = 36
✯ 126 - 18x = 36
✯ 126 - 36 = 18x
✯ 18x = 90
✯ x = 5
Ten digits , x = 5 Ones digits = ( 14 - x ) = 14 - 5 = 9♧ Thus , Required number is 10 × 5 + 9 = 59
Given -
the sum of the digits of a two - digit number is 14.i.e, if two numbers are x and y then, x + y = 14
if the digits are reversed, the number increases by 36i.e, if 10y + x then 10y + x = 10x + y + 36.
To find -
the numberConcept -
If a, b and c are real number (and if a and b both are not equal to 0) then ax+by=c is called a linear equation in two variables (The two variables are x and y)
The numbers a and b are called the coefficient of the equation ax+by=c. The number r is called the constant of the equation ax+by = c
PS - first we will construct two linear equations and then we'll find the number.
Solution -
Let, x + y = 14
➜ y = 14 - x ----(i)
and we'll solve 10y + x = 10x + y + 36 further,
➜ 10y + x = 10x + y + 36
➜ 10y - y = 10x - x + 36
➜ 9y = 9x + 36
➜ 9x - 9y = -36
➜ 9(x - y) = -36
➜ x - y = -4 ----(ii)
Substituting the value of y (in equation (i)) in equation (ii),
➜ x - (14 - x) = -4
➜ x - 14 + x = -4
➜ 2x = -4 + 14
➜ 2x = 10
➜ x = 10/2
➜ x = 5
Now to find the value of y we will substitute the value of x in equation (i),
➜ y = 14 - 5
➜ y = 9
Therefore, the number is {10(5)+9,i.e,} 59.
Miguel cut 1/4 from a round pie. Mariah cut a piece from the same pie with an angle measure of 60 degrees who cut the larger piece? Explain.
Answers
Answer: Since the pie is round it is a circle, and all circles have 360 degrees in total. Miguel cut 1/4 of the pie and 1/4 x 360 = 90. 90 is greater than 60.
Step-by-step explanation:
Answer:
Miguel has the larger piece. 1/4 is equal to 90, because 360/4 = 90.
So Miguel has the larger piece
Step-by-step explanation:
There are 57 people touring the mooresville zoo. The wagons at the zoo can only carry 7 people. How many wagons will this group need for their tour?
Answers
Since you can’t have 0.1 of a wagon, you would need to have 9 wagons to fit everyone.
Answer: 9 wagons
how much longer is 18.25 centimeters than 75.4 milimeters
Answers
Answer:
10.71
Step-by-step explanation:
You first convert 75.4 millimeters to centimeters, and you will get 7.54. Now you subtract 18.25 and 7.54 to get the answer 10.71
if 5 songs can be downloaded for $6, what
is the cost of seven songs?
Answers
Answer:
7 songs costs $8.4
Step-by-step explanation:
6/5= $1.2 for each song
1.2 times 7= $8.4
7 songs costs $8.4
The dot plot below shows the number of books 26 students read in a month:
Dot plot labeled Number of Books Read shows 10 dots over 0, 7 dots over 1, 3 dots over 2, 2 dots over 3, 1 dot over 4, and 3 dots over 10.
Is the median or the mean a better center for this data and why?
Mean; because the data is skewed and there are outliers
Mean; because the data is symmetric and there are outliers
Median; because the data is skewed and there are outliers
Median; because the data is symmetric and there are outliers
Answers
Answer:
The answer is A. Mean; because the data is skewed and there are outliers
Answer:
The answer is A
PLEASE ANSWER AS SOON AS POSSIBLE WILL GIVE "Brainliest" TO THE FIRST CORRECT PERSON!!!
Find the values of x and y. Write your answers in the simplest form.
Answers
Answer: [tex]x=18[/tex] ; [tex]y=6\sqrt{3}[/tex]
Step-by-step explanation:
You can write two expressions that are in terms of 'x' and 'y'. This is a right triangle, so Pythagorean's theorem can be used. We can also use the angle to find the sine of 30 degrees.
Pythagorean's Theorem:
The values 'a' and 'b' are the two shorter sides of the triangle, while the value 'c' is the longest side of the triangle; the hypotenuse.
[tex]a^2+b^2=c^2[/tex]
[tex]x^2+y^2=(12\sqrt{3} )^2[/tex]
[tex]x^2+y^2=12^2*\sqrt{3} ^2=432[/tex]
Sine of the Angle:
Sine is defined to be the opposite side divided by the hypotenuse. Let's take the sine of 30 degrees:
[tex]sin(\alpha )=opposite/hypotenuse[/tex]
[tex]sin(30)=y/12\sqrt{3}[/tex]
[tex]\frac{1}{2} =y/12\sqrt{3}[/tex]
[tex]y=6\sqrt{3}[/tex]
Plug this value of 'y' into the first expression derived from Pythagorean's theorem:
[tex]x^2+y^2=432[/tex]
[tex]x^2+(6\sqrt{3} )^2=432[/tex]
[tex]x^2+108=432[/tex]
[tex]x^2=432-108=324[/tex]
[tex]x=\sqrt{324}[/tex]
[tex]x=18[/tex]
Use this value of 'x' to solve for 'y' in the expression from Pythagorean's theorem:
[tex](\sqrt{324})^2+y^2=432[/tex]
[tex]324+y^2=432[/tex]
[tex]y^2=432-324=108[/tex]
[tex]y=\sqrt{108}[/tex]
[tex]y=\sqrt{36*3}[/tex]
[tex]y=6\sqrt{3}[/tex]
I need help please. I have no idea how to do this
Answers
Answer:
Letter A is 100 degrees.
Letter B is 80 degrees.
Step-by-step explanation:
50+60= 110
180-110= 80 <- the leftover degrees for the triangle
a line is 180 degrees, so 100 degrees is left over for letter A.
I have a bunch more questions im sorry i just haveva F in math and need help!
Answers
Answer:
option I
Step-by-step explanation:
Option I 168 yd²
The surface area =168 yd²
I hope it helped you
Tristan is comparing two number patterns based on the information below.
Both patterns start with the number 1.
Pattern A follows the rule “add 3”.
Pattern B follows the rule “add 4”.
How does each of the first 5 terms in Pattern A compare to the first 5 terms in Pattern B?
As part of your answer, list the first 5 terms of each pattern.
Explain your answer.
Answers
Pattern A = 1, 4, 7, 10, 13
Pattern B = 1, 5, 9, 13, 17
Each term is increases at a faster rate in pattern B; the difference between terms increases by one per step. In pattern A, 1 jumps to 4, while in pattern B, 1 jumps to 5. There is a difference of one. But when in pattern A, 4 jumps to 7, in pattern B, 5 jumps to 9. The is a difference of two between these two terms even though they are on the same "jump." This difference increases by one per "jump." (Jump is not the official word for this but I'm assuming this isn't a sequence problem.)
factor completely 36x-60
Answers
Explanation:
1) Highest common factor is 6, as 36 and 60 are both divisible by 6.
2) Take the highest common factor (6) outside of brackets and throw everything else inside the brackets.
3) 6 times ?= 36x
?= 6x so we get: 6(6x___)
4) 6 times?= -60
?= -10 so we get: 6(__-10)
5) Combine your knowledge of both and get the answer: 6(6x-10)
Hope that helps and is simple enough!
What is the volume of the cylinder below?
Answers
Answer:
C. 2160π units³
Step-by-step explanation:
Volume of a cylinder is given by the formula :
V = πr²h
Substituting values given gives us :
V = π(12)²(15)
V = π(144)(15)
V = 2160π units³ (since it is volume)
Answer:
[tex]\boxed{\sf{C. \quad 2160\pi \quad units^3}}[/tex]
Step-by-step explanation:
It is necessary to use their formula to solve this problem with the volume of the cylinder.
Volume of the cylinder formula:
[tex]\Longrightarrow: \sf{V=\pi r^2h}}[/tex]
[tex]\sf{12^2(15)}[/tex]
Solve.
Use the order of operations.
PEMDAS stands for:
ParenthesesExponentsMultiplyDivideAdd SubtractFirst, solve with exponents.
[tex]\sf{12^2=12*12=144}[/tex]
Then, rewrite the problem down.
144(15)
Multiply.
[tex]\sf{144*15=\boxed{\sf{2160}}}[/tex]
Therefore, the correct answer is C. 2160π units³.Which point is not on the graph of the equation: y = 10 + x?
A. (0, 10)
B. (3, 13)
C. (8, 2)
D. (5, 15)
Answers
The point that is not on the graph of the linear equation y = 10 + x is given by:
C. (8, 2)
What is the definition of the linear equation?It is given by:
y = 10 + x.
Hence, all the points on the graph have the following coordinates:
(x, x + 10).
Option C does not follow this format, hence it is not on the graph.
More can be learned about linear equations at https://brainly.com/question/24808124
#SPJ1
The area of the triangle below is 29.25 square centimeters. What is the length of the base?
Answers
Answer:
b = 9
Step-by-step explanation:
0.5 bh= 29.25
thus
(0.5)(b)(6.5)=29.25
thus
b= 58.5/6.5 = 9
Answer:
9?
Step-by-step explanation:
If 9% of a number is 75, find 3% of that number.
Delta math again.
Answers
Answer:
25
Step-by-step explanation:
[tex]0.09a=75\\a=\frac{75}{0.09} \\0.03*a=0.03*\frac{75}{0.09} =25[/tex]
Help
…… asap no links
Answers
Answer:
Answer Linked below
Step-by-step explanation:
Help will give thanks to the first to answer
Answers
Answer:
[tex]56[/tex]
Step-by-step explanation:
[tex]10 \times 5 + 6[/tex]
[tex]50 + 6 = 56[/tex]
10 (5) + 6
50 + 6 = 56
If 1/4in on a map represents 1 meter, how many meters does 4/5in represent?
Answers
Answer:
3 1/5 meters
Step-by-step explanation:
1/4 in. on map ⇒ 1 meter in real life
1/4 can also be written as 5/20⇒ 1/20 = 1/5 meter⇒ 4/5 in. = 16/20 inches
⇒ 16/20 inches = 1/5 x 16 = 3 1/5 meters
Please help me with this. (Geometry)
Answers
Step-by-step explanation:
Pythagoras's rule: [tex]a^2 + b^2 = c^2[/tex] becomes [tex]x^2 + 10^2 = y^2[/tex]
If we say b = 10: [tex]b = 10 = \sqrt{c^2 - a^2} = \sqrt{y^2 - x^2}[/tex]
You only need to look at the left triangle
Which of the options follows Pythagoras's rule?
Let's try the options until we get the right one (in no particular order)
If we try: 3) x = 4 y = [tex]29\sqrt{2}[/tex]...
[tex]\sqrt{(29\sqrt{2})^2 - 4^4} = 7\sqrt{34} \neq 10[/tex]
If we try: 4) x = 16 y = 116...
[tex]\sqrt{116^2 - 16^2} = 20\sqrt{3} \neq 10[/tex]
If we try: 2) x = 16 y = 29...
[tex]\sqrt{29^2 - 16^2} = 3\sqrt{65} \neq 10[/tex]
If we try: 1) x = 4 y = [tex]2\sqrt{29}[/tex]...
[tex]\sqrt{(2\sqrt{29})^2 - 4^2} = 10[/tex]
1. Mrs. Rodger got a weekly raise of $145. If she gets paid every other week, write an integer describing how the raise will affect her paycheck.
Answers
weekly raise= $145
solution:let's assume the first paycheck as x.
she got a weekly raise of $145.
So, after concluding the first week she'll get $ (x+145).
likewise, after completing the second week she'll get $ (x + 145) + $ 145.
= $ (x + 145 + 145)
= $ (x + 290)
therefore, this is how her salary will get increased by $145 at the end of every week.
Kelly has a checking account at a local bank your bank charges five dollars a month to maintain a checking account plus a 0.25 fee for each check Kelly wait last month Kelly paid a total of $7.50 in checking account fees how many checks did Kelly write last month 
Answers
y
The equation y=-x2 - 8x – 18 is shown by graph
B
The equation y=x2 - 4x + 7 is shown by graph
6
A
2
NO
2
r
The equation y=x+5 is shown by graph
-10
2
10
The equation y=-3x - 6 is shown by graph
С
DONE
D
Intro
Answers
Answer:
y=-x2 - 8x – 18 is shown by graph D.
y=x2 - 4x + 7 is shown by graph A.
y=X+5 is shown by graph C.
y=-3x - 6 is shown by graph B.
Step-by-step explanation:
In y=-x2 - 8x – 18, the coefficient of x2 is less than 0.So the graph only has a maximum value.Thefore , the graph is point upward.
In y=x2 - 4x + 7, coefficient of x2 is greater than 0.
So the graph has a minimum point and is pointed downward.
for y =x + 5, the gradient is positive.so it is graph C.There is another way to find out too but this is quicker for now.
for y = -3x - 6, the gradient is negative ,-3.So it is the graph B.
Answer:
D A C B
Step-by-step explanation:
A total of 590 tickets were sold for the school play. They were either adult tickets or student tickets. There were 60 fewer student tickets sold than adult tickets. How many adult tickets were sold?
Answers
Answer:
325 adult tickets
Step-by-step explanation:
This "sum and difference" problem can be solved by assigning a single variable to the quantity you want to know. Let 'a' represent the number of adult tickets sold. Then (a-60) is the number of student tickets sold, and the total number sold is ...
a +(a -60) = 590
2a = 590 +60
a = 650/2 = 325
There were 325 adult tickets sold.
__
Check
325-60 = 265 student tickets were sold, for a total of 325+265 = 590.
_____
Additional comment
You may have noticed that the larger number of tickets (number of adult tickets) was found to be the average of the two numbers given in the problem statement. That will generally be the case for a "sum and difference" problem.
Graded Assignment
Unit Test, Part 2: Two-Dimensional Geometry
Answer the questions below. When you have finished, submit this assignment to your teacher by the due date for
full credit.
Total score:
of 15 points
(Score for Question 1:,
of 5 points)
1.
The iS diagram shown is two intersecting lines. The measure of 25 is 47°.
(a) What is the measure of 27 ? How do you know. Explain you answer in complete sentences.
(b) Suppose the measure of 26 can be represented by (2x-5)). What equation can be written to solve
for the value of x?
(c) What is the value of x?
Answer:
Answers
By using what we know about intersecting lines, we will see that:
a) ∡7 = 47°b) 47° + (2x - 5)° = 180°c) x = 69How to get the measures of the angles for two intersecting lines?When two lines intersect, 4 angles are formed. There are two properties that these angles have.
If the angles are adjacent, then their measures add up to 180°If the angles are not adjacent, these angles have the same measure.a) We know that ∡5 = 47°
And 7 is not adjacent to 5, then 7 has the same measure:
∡7 = 47°
b) 6 and 5 are adjacent, then we must have that:
∡5 + ∡6 = 180°
47° + (2x - 5)° = 180°
That is the equation we need to solve to get the value of x.
c) To solve the linear equation we need to isolate x, let's do that:
47° + (2x - 5)° = 180°
(2x - 5)° = 180° - 47° = 133°
2x - 5 = 133
2x = 133 + 5 = 138
x = 138/2 = 69.
If you want to learn more about linear equations, you can read:
https://brainly.com/question/1884491
Answer:
a) <5 and <7 have congruent angles. That means that both angles are equal, they have the same measure. This means that the measure of <7 is 47°.
<7 = 47°
b) 5 and 6 are adjacent, so this is the equation that we have to do to solve for the value of x.
<5 + <6 = 180°
47° + (2x - 5)° = 180°
c) To solve the linear equation we need to isolate x.
47° + (2x - 5)° = 180°
(2x - 5)° = 180° - 47° = 133°
2x - 5 = 133
2x = 133 + 5 = 138
x = 138/2 = 69
Jake is enclosing a rectangular field that is 47 yards by 158 yards with wood fencing. The cost per foot of wood fencing is $3.28.
How much will the wood fencing cost?
Answer options with 4 options
A.
$672.40
B.
$1,344.80
C.
$2,017.20
D.
$4,034.40
Answers
Answer:D
Step-by-step explanation: Perimeter of field is 2(length +breadth)
=2(47+158)
=410 yards.
Convert to feet= 1230ft
1ft =$3.28
1230ft will be 1230×3.28
Ans $4034.4
Hello help math math math
Answers
Answer:
S=N+2
Step-by-step explanation:
Just a heads up I don't think that this is correct
If Susan is 2 years older than Nancy then N=S-2 which stands for Nancy is 2 years yonger than Susan. So for the bottom eqaution, if Susan is 2 years older than Nancy then that should be S=N+2 to stand for the fact that Susan is 2 years older than Nancy.
I AM SO SORRY IF THIS ISN'T CORRECT
-dani <3
Answer:
S=N+2
Step-by-step explanation:
Help will give thanks to the first to answer
Answers
Answer:
x-4
Step-by-step explanation:
because a number could be x and all you have to do is subtract 4 from a number making it x-4
Answer:
4-x
Step-by-step explanation:
Because it says that x is subtracted from 4 which would make it understood that 4 is the first term and then x.
solve for x ~
[tex]16x - 4 = 0[/tex]
thankyou ~
Answers
[tex]\qquad\qquad\huge\underline{\boxed{\sf Answer}}[/tex]
Here we go ~
[tex]\qquad \tt \dashrightarrow \:16x - 4 = 0[/tex]
[tex]\qquad \tt \dashrightarrow \:16x - 4 + 4 = 0 + 4[/tex]
[tex]\qquad \tt \dashrightarrow \:16x = 4[/tex]
[tex]\qquad \tt \dashrightarrow \:x = 4 \div 16[/tex]
[tex]\qquad \tt \dashrightarrow \:x = \frac{1}{4} [/tex]
The Value of x is :-
16x - 4 = 0
16x = 4
x = 4/16
x = 1/4
help!
factor as the product of biomionals
64-16x+x^2
Answers
Answer:
(x-8)(x-8) are the factors of the following biominals
Answer:
Step-by-step explanation: