Answer:
12
Step-by-step explanation:
let the unknown number is x.
As said in the question, we add half of x to 5 and their sum equals to 11.
steps:
write the equation.do the L.C.M.transfer 2 to the other side of the equal signkeep x as the subject and do the subtraction on the other side of the equal sign[tex]5 + \frac{1}{2}x = 11\\\frac{10+x}{2} = 11\\10 + x = 22\\x = 22-10\\x = 12[/tex]
a computer backs up 324 megabytes of data in 5 minutes. WRITE AN EQUATION that represents the number of megabytes, m, that can be backed up in (t) minutes.
Answer:
64.8 x t = m
Step-by-step explanation:
324 / 5 = 64.8 :64.8 megabytes are produced every 1 minute
64.8 x t = m
Write the vocabulary word for this definition:
The number of units or spaces away a number is from zero
Answer:
i am not sure but may be ...absolute value
PLEASE HELP WITH THIS, ITS FOR A TESTTT
Answer:
The answer is C
Step-by-step explanation:
Distribute first then combine like terms
what is the quotient of 0.12/24.12
Answer:
0.00497512437
Step-by-step explanation:
but make sure to round it. it should be 0.005 rounded to the nearest thousandth place but make sure if im correct im not too sure.
Section 1 - Question 1 Consider these six expressions. Expression A Expression B Expression C (−5)(−0.4)(1.8) (-45)(-19)(-112) −1(5+17) Expression D Expression E Expression F (−5)(−0.4)(1.8)(−3.25) (-49)(-34)(-12)(-12) −1(3.5−7) How many expressions will have a product that is positive? A 2 B 3 C 4 D 5 q-q help me this is confusing
Answer:
B 3
Step-by-step explanation:
Given
[tex]Expression\ A: (-5)(-0.4)(1.8)[/tex]
[tex]Expression\ B: (-45)(-19)(-112)[/tex]
[tex]Expression\ C: -1(5+17)[/tex]
[tex]Expression\ D: (-5)(-0.4)(1.8)(-3.25)[/tex]
[tex]Expression\ E: (-49)(-34)(-12)(-12)[/tex]
[tex]Expression\ F: -1(3.5-7)[/tex]
Required
How many of them will have a positive result
Taking the expressions one after the other:
[tex]Expression\ A: (-5)(-0.4)(1.8)[/tex]
Convert brackets to multiplication
[tex]Expression\ A: -5*-0.4*1.8[/tex]
[tex]Expression\ A: 3.6[/tex]
This has a positive product
[tex]Expression\ B: (-45)(-19)(-112)[/tex]
Convert brackets to multiplication
[tex]Expression\ B: -45*-19*-112[/tex]
[tex]Expression\ B: -95760[/tex]
This has a negative product
[tex]Expression\ C: -1(5+17)[/tex]
Solve the expression in bracket
[tex]Expression\ C: -1 *22[/tex]
[tex]Expression\ C: -22[/tex]
This has a negative product
[tex]Expression\ D: (-5)(-0.4)(1.8)(-3.25)[/tex]
Convert brackets to multiplication
[tex]Expression\ D: -5*-0.4*1.8*-3.25[/tex]
[tex]Expression\ D: -11.7[/tex]
This has a negative product
[tex]Expression\ E: (-49)(-34)(-12)(-12)[/tex]
Convert brackets to multiplication
[tex]Expression\ E: -49*-34*-12*-12[/tex]
[tex]Expression\ E: 239904[/tex]
This has a positive product
[tex]Expression\ F: -1(3.5-7)[/tex]
Solve the expression in bracket
[tex]Expression\ F: -1*-3.5[/tex]
[tex]Expression\ F: 3.5[/tex]
This has a positive product
Expressions A, E and F have positive products. This implies that, there are 3 expressions with a positive product.
What is the answer to 2r – 1 ≥ ‐3(r + 7)?
Answer:
r>−4
Step-by-step explanation:
which number is bigger 1.59 or 1.955
Answer:
1.955 is bigger
Step-by-step explanation:
1.955>1.59
Answer:
1.955
Step-by-step explanation:
This is because the number after the decimal in 1.955 is 9, which is bigger than the 5 shown in 1.59
30. The table below shows the average temperature of a lake in months since April in a certain year. Find
the equation for the curve of best fit using a quadratic model, then predict the average temperature of
the lake during December of the same year. Round all answers to the nearest hundredth.
Month
Temp (°F)
April
59
May
68
June
71
July
78
August
74
1
Answer:
The temperature, in December is 47 °F
Step-by-step explanation:
The given data for the temperature are;
Month [tex]{}[/tex] Temp (°F)
April [tex]{}[/tex] 59
May [tex]{}[/tex] 68
June [tex]{}[/tex] 71
July [tex]{}[/tex] 78
August [tex]{}[/tex] 74
Let x represent the month, and f(x) = y represent the temperature, we have;
y = a·x² + b·x + c
When x = 1, we have, f(1) = a·1² + b·1 + c = 59
f(1) = a + b + c = 59...(1)
When x = 2, we have, f(2) = a·2² + b·2 + c = 68
f(2) = 4·a + 2·b + c = 68...(2)
When x = 3, we have, f(3) = a·3² + b·3 + c = 71
f(3) = 9·a + 3·b + c = 71...(3)
When x = 4, we have, f(4) = a·4² + b·4 + c = 78
f(3) = 16·a + 4·b + c = 78...(4)
When x = 5, we have, f(5) = a·5² + b·5 + c = 74
f(3) = 25·a + 5·b + c = 74...(5)
Subtracting equation (3) from equation (5), we get;
25·a + 5·b + c - (9·a + 3·b + c) = 74 - 71
16·a + 2·b = 3...(6)
Subtracting equation (1) from equation (2), we get;
4·a + 2·b + c - (a + b + c) = 68 - 59
3·a + b = 9...(7)
Multiply equation (7) by 2 and substract from equation (6) gives;
16·a + 2·b - 2 × (3·a + b) = 3 - 2 × 9
16·a + 2·b - 6·a - 2·b = 3 - 2 × 9
16·a - 6·a + 2·b - 2·b = 3 - 2 × 9 = -15
10·a = -15
a = -15/10 = -1.5
a = -1.5
From, 3·a + b = 9, we have;
3 × (-1.5) + b = 9
b = 9 + 4.5 =13.5
b = 13.5
From, a + b + c = 59, we have;
-1.5 + 13.5 + c = 59
c = 59 - (-1.5 + 13.5) = 47
c = 47
The quadratic equation becomes, y = a·x² + b·x + c = -1.5·x² + 13.5·x + 47
f(x) = y = -1.5·x² + 13.5·x + 47
For December, we have, x = 9, and f(x) = -1.5×9² + 13.5×9 + 47 = 47
The temperature, in December = 47 °F
Which property is shown in the problem below?
-8(x-3y-9)=-8+24y+72
the associative property
the commutative property
the distributive property
the division property
Answer:
Distributive property is shown!
Answer:
the answer would be distrubutive
Step-by-step explanation:
ook a test today in school and got a 100
y - 3 = -2 ( x + 5 ) in standard form
Answer:
2x + y = -7
Step-by-step explanation:
Standard form is Ax + By = C
A represents the coefficient with x
B represents the coefficient with y
C represents the constants
1 - Rewrite to make it easier to work it out
y - 3 = -2 ( x + 5 )
2 - Distribute
y - 3 = -2x - 10
3 - Get the variables on one side and the constants on the other
y - 3 = -2x - 10
+ 2x + 2x
2x + y - 3 = -10
+ 3 + 3
2x + y = -7
Hope this helps,
Find the area of the shaded region. Express your answer in terms of π.
Answer:
335.115
Step-by-step explanation:
First you find the area of the circles to do that you do pi times radius squared
For the top square do 3.14(pi)time 3²=28.26
For the middle square do 3.14 times 4.5²=63.585
For the bottom square do 3.14 times 6²=113.04
Now find the area of the entire thing do 18×12+9+6+3=18×30=540
Finally do 540-the area of the squares 28.26-63.585-113.04= 335.115
So the shaded region is 335.115
Hope this helps and have a great day!
what is the absolute value of │38│
Answer:
38
Step-by-step explanation:
if there are bars around it its automatically positive even if it was -38 the absolute would still be 38.
Answer: 38
Step-by-step explanation: The absolute value of a number
is that number's distance from zero on a number line.
Since 38 is 38 units from zero, the absolute value of 38 is just 38.
Please help, I will mark brainliest!
A partial proof was constructed given that MNOP is a parallelogram.
Which statement should fill in the blank in the last line of the proof?
A. angle M is supplementary to angle O.
B. angle N is supplementary to angle P.
C. angle M is congruent to angle P
D. angle N is congruent to angle P.
Answer:
B
Step-by-step explanation:
B. angle N is supplementary to angle P
Answer:
B
Step-by-step explanation:
PLEASE HELP I AM BEHIND!!!!
If the solution to an equation is x = −5, what could the original equation be?
A. x + 3 = 8
B. x − 3 = 8
C. x + 8 = 3
C. x − 8 = 3
(sorry if this is easy for you, I'm bad at math.)
Answer:
The answer is c definitely
Answer:
C. x + 8 = 3
Step-by-step explanation:
x + 8 = 3
x + 8 - 8 = 3 - 8 ( so do the same thing you do on both the left and right side )
x = -5
So C is correct but you can always say 3 - 8 to figure out that the answer in c is the right one.
HOPE THIS HELPED
Two forces act on a body so the resultant is a force of 68.3 pounds. The angles between the resultant and the forces measure 46 degrees and 38 degrees.
Answer:
A
Step-by-step explanation:
Use the equation given for sin
On a coordinate plane, 2 dashed straight lines are shown. The first line has a positive slope and goes through (negative 1, 0) and (0, 1). Everything to the right of the line is shaded. The second line has a negative slope and goes through (negative 2, 0) and (2, negative 4). Everything to the right of the line is shaded. Which linear inequality is graphed with y > –x – 2 to create the given solution set? y > x + 1 y x – 1 y < x + 1
Answer:
The linear equality y>x+1 is the right answer.
Answer:
The linear equality y>x+1 is the right answer.
Step-by-step explanation:
Figure ABCD is transformed to figure A prime B prime C prime D prime, as shown:
A coordinate grid is shown from negative 5 to 0 to 5 on both x -and y-axes. A polygon ABCD has A at ordered pair 1, 3, B at ordered pair 3, 4, C at ordered pair 2, 1, D at ordered pair 1, 1. A polygon A prime B prime C prime D prime has A prime at ordered pair negative 3, 3, B prime at ordered pair negative 5, 4, C prime at ordered pair negative 4, 1, D prime at ordered pair negative 3, 1.
Which of the following sequences of transformations is used to obtain figure A prime B prime C prime D prime from figure ABCD?
A. Reflection about the x-axis followed by a translation to the right by 2 units
B. Reflection about the y-axis followed by a translation to the left by 2 units
C. Counterclockwise rotation by 90 degrees about the origin followed by a translation to the right by 2 units
D. Counterclockwise rotation by 90 degrees about the origin followed by a translation to the left by 2 units
Answer:
A
Step-by-step explanation:
I took the test.
PLEASE HELP ;)
Who did it right?
Find the slope of the line perpendicular to 2x+3y=8
Answer:
Marissa.
Step-by-step explanation:
To find perpendicular slope you basically take the slope of the given line and reverse whatever sign it had previously. (If it was negative, it would become positive. If it was positive it would become negative.)
By doing -A/B it make the previous slope negative.
Brandon only flipped the fraction which would just result in the slope being slightly steeper, or in this case, less steep than the previous line, rather than making it perpendicular.
Hope this helps! Stay safe and if you have any questions feel free to ask!
A recipe used 1/2 cup of sour cream for every 1/4 teaspoon of salt. What is the unit rate of teaspoons of salt per cup of sour cream?
Answer:
1/2 teaspoons of salt per cup of sour cream
Step-by-step explanation:
multiply 1/2 and 1/4 by 2 to get 1 and 1/2. Since the question is teaspoons of salt per cup of sour cream, flip the numbers to get 1/2 teaspoons of salt per 1 cup of sour cream.
A line passes through the point (4, -6) and has a slope of -3/4. Which is the equation of the line
Answer:
A: y=-3/4x -3
Step-by-step explanation:
Mr. Baugh is a car salesman. He is paid a salary of $1800 per month plus $600 for each car that he sells. Find the slope and the y-intercept then write a linear equation that describes the relationship between the number of cars sold x and the monthly salary y. If Mr. Baugh sells 5 cars, how much money will he make for the month?
Answer:
he will make $4800 for that month
Step-by-step explanation:
Help me pls what is the perpendicular line
Answer:
-2
Step-by-step explanation:
Determine the correct scientific notation form of the number. 627,000,000
Answer:
6.27 x 10 ^ 8
Step-by-step explanation:
Which table represents a nonlinear function?
A.
x y
2 -9
4 1
6 11
B.
x y
2 -14
4 -16
6 -18
C.
x y
2 0
4 6
6 16
D.
x y
2 -9
4 -6
6 -3
Answer:
C. 2 -9
4 -6
6 -3
Step-by-step explanation:
Answer:c
Step-by-step explanation:
Help plzzz............
Answer: See explanation below
Step-by-step explanation:
A composite number is a number that has factors other than 1 and self, while a prime number only can be divided by (or have factors of) 1 and itself.
Hope this helps! :)
Answer:
A prime number is a number that can be divided by itself or the number 1
Step-by-step explanation:
Not sure on the composite one tho
I need help just say the answer that’s all I need
Step-by-step explanation:
sorry I m not able to understand the question thank you for extra points
Which of the following volumes represent a perfect cube? Check all that apply. 1 in.3 4 in.3 8 in.3 12 in.3 25 in.3 27 in.3 64 in.3
Answer:
A, C, F, G (1 in.^3, 8 in.^3, 27 in.^3, 64 in.^3.)
Step-by-step explanation:
Answer:
A
C
F
G
Step-by-step explanation:
I got it right on the question.
Sarah uses long division to convert a rational number x/y to its decimal form. Which of the following statement cannot be true?
Answer the question above
Answer:
it is C.
Step-by-step explanation: