Answer:
23
Step-by-step explanation:
Answer: Rachel is correct the coldest temperature could be greater than Mondays. Step-by-step explanation: Because 2 degrees Fahrenheit is less than 4 degrees which makes Rachel right.
if (x) = 3x^2 + 10, what is f(-7)
Answer:
f(x) = -139
Step-by-step explanation:
f(x) = 3x^2 + 10 If f(-7)
f(-7)= 3 * -7^2 + 10
F(-7) = 3 * -49 + 10
f(-7) = -147 + 10
f(-7) = -139
Answer:
-137
Step-by-step explanation:
3*(-7)2+103*-49+10-147+10-137Find the difference. Show each step for full credit. Use ^ for exponents, for instance x^2 means x2
3n^3+ 4n^2 – 9 and -2n^3 + 4n – 9
The difference between 3n³ + 4n² - 9 and -2n³ + 4n - 9 is 5n³ + 4n² - 4n
Given,
The two expressions are:
a = 3n³ + 4n² - 9
b = -2n³ + 4n - 9
We have to find a - b:
That is,
(3n³ + 4n² - 9) - ( -2n³ + 4n - 9)
Open the bracket and multiply (-) with the terms.
That is,
3n³ + 4n² - 9 + 2n³ - 4n + 9
Now solve the expression:
We get,
3n³ + 4n² + 2n³ - 4n
Add 3n³ and 2n²
Then,
5n³ + 4n² -4n
Therefore, the difference between 3n³ + 4n² - 9 and -2n³ + 4n - 9 is 5n³ + 4n² - 4n
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7 apples cost 4.55 what cost per apples
Answer:
65 cents
Step-by-step explanation:
4.55/7=.65
The number -26/99 is rational
Answer:
Correct!
Step-by-step explanation:
Rational numbers can be expressed as fractions of integers. Negative 22 and 99 are both integers, therefore the number is rational!
Write a system of linear equations for the problem and solve the system using an augmented matrix and your calculator.
Mike works a total of 59hr per week at his two jobs. He makes $8 per hour at job A and $9 per hour at job B. If his total pay for one week is $494 before taxes, then how many hours does he work at each job?
Answer: he works 37 hours in job A, and 22 hours in job B.
Step-by-step explanation:
Let's define the variables:
A = number of hours that he works at Job A
B = number of hours that he works at Job B.
We know that he works a total of 59hr per week, then we have:
A + B = 59
And we also know that he makes $494 in one week, then we have the equation:
A*$8 + B*$9 = $494.
Then we have the system of equations:
A + B = 59
A*$8 + B*$9 = $494
To solve this with an augmented matrix, we need to turn these equations into a matrix, where we only write the coefficients as follows:
[tex]\left[\begin{array}{cccc}1&1&I&59\\8&9&I&494\end{array}\right][/tex]
(The I's should represent a line for the augmented matrix, that line separates the values of the coefficients to the right value of each equation)
The first column represents the A coefficients, the second column represents the B coefficients.
To solve this, we want to get something of the form:
[tex]\left[\begin{array}{cccc}1&0&I&x\\0&1&I&y\end{array}\right][/tex]
Where x and y are our solutions.
To do it we can just do: Column 2 - 8*column 1, this will get us to:
[tex]\left[\begin{array}{cccc}1&1&I&59\\8 - 8*1&9 - 8*1&I&494 - 8*59\end{array}\right][/tex]
=
[tex]\left[\begin{array}{cccc}1&1&I&59\\0&1&I&22\end{array}\right][/tex]
Now we can do: Column1 - column2, to get
[tex]\left[\begin{array}{cccc}1 - 0&1 - 1&I&59 - 22\\0&1&I&22\end{array}\right][/tex]
[tex]\left[\begin{array}{cccc}1&0&I&37\\0&1&I&22\end{array}\right][/tex]
Then the solutions are:
1*A =37
1*B = 22
This means that he works 37 hours in job A, and 22 hours in job B.
Evaluate cot arcsin 4/5
You win $7,500 at month 40. Can you fully pay off either car? Explain.
in order to figure out if we can pay the car, we need to know how much it costs.
Step-by-step explanation:
There needs to be more explanation for people to help you, maybe tou can send a picture so someone can help you.
Subtract. Write the answer in lowest terms.
6 1/6 - 2 5/6
Answer:
61/6_25/6=61_25/6=36/6 we divide =6The answer is 6Step-by-step explanation:
Please mark my answer as a brainliest. Please follow me. ❤❤❤Answer:
3 1/6
Step-by-step explanation:
look on the attachment i sent
What is the axis of symmetry for the function y=-(x-3)^2+5
Answer:
x = 3
Step-by-step explanation:
This is in vertex notation which means that it is written in y = (x-h)^2 + k format where the vertex is (h,k). In this case the vertex is (3,2) which means that at the x-axis of 3, that is where the parabola is mirrored and is in fact the axis of symmetry
Use the table below to answer the following questions.
Notebooks Cost
3
4
(Dollars)
$1.65
$2.20
$2.75
$3.30
5.
6
Students were asked to choose their favorite subject. If 1/4 of the students chose social studies and 3/8 chose math, what fraction of students chose either social studies or math?
Answer:
20/32 students chose either math or social studies.
Solution:
1/4 is equivalent to 8/32 and 3/8 is equivalent to 12/32 if you add them you get 20/32.
thanks for the help!
Explanation:
The term "bisect" means "divide in half", or "divide in two equal pieces".
Angles A = 58 and B = 96 divide in half to get 29 and 48 respectively
Find their sum and subtract it from 180 to get angle AMB
29+48 = 77
180-77 = 103
A diagram is shown below.
3x-3+6 how many solutions would the equation have explain
Answer: 3x + 3
Step-by-step explanation:
This is past due I need help will give brainlist
Answer:
A
Step-by-step explanation:
which one represents a linear function help ong please !!
Answer:
D is the correct answer
Find a benchmark for 24% using that- what fraction is 24% close to?
A. 1/6
B. 1/8
C. 1/4
Answer: B. 1/8
Step-by-step explanation:
5x-2y=-3 -2x-y=-6 método de reducción suma y resta con procedimiento y respuesta doy corona a quien me ayude en menos de media hora
Answer:
(1, 4)
Step-by-step explanation:
5x-2y=-3 -2x-y=-6 =>
5x-2y=-3
-2x-y=-6 Multiply all three terms by -2: 4x + 2y = 12
Then we have:
5x-2y=-3
4x + 2y = 12
---------------------
9x = 9 and so x = 1. Then, using -2x - y = -6, and substituting 1 for x:
-2(1) - y = -6, or
2 + y = 6, or
y = 4
Then the solution is (1, 4)
In the expression 3x the letter x is a
5x -2y=18 what does x and y equal?
Answer:
[tex]x,y\ could\ be\ any\ real\ numbers[/tex]
Step-by-step explanation:
[tex]As\ a\ linear\ equation\ in\ two\ variable\ has\ infinite\ solutions,\\5x-2y=18, will\ also\ have\ infinite\ solutions\ and\ x\ and\ y\ can\ take\ any\ real\ values.[/tex]
Solve for x.
Can anyone help me please?
Answer:
The answer is 1
Step-by-step explanation:
3-4= -1
-1+x= 1
XZ is the angle bisector of angle WXy. solve for m. enter a number only
Answer:
m = 7
Step-by-step explanation:
An angle bisector is a line or ray that divides an angle into two equal angles
so ∠WXZ = ∠ZXY
10m - 28 = 5m + 7
10m - 5m = 7 + 28
5m = 35
m = 7
Evaluate the expression: 6(4+ 9) -3²|+2
Answer:
69
Step-by-step explanation:
First add the numbers in brackets
6x13-3^2(that means squared)
Evaluate the power
6x13-9
Multiple
78-9
And calculate
the answer is 69
On tuesday a local hamburger shop sold a combined total of 504 hamburgers and cheeseburgers. The number of cheeseburgers sold was 3 times the number of hamburgers sold. How many hamburgers were sold on tuesday?
Answer:
126
Step-by-step explanation:
Let the no. of hamburger be n
Then the no. of cheeseburgers = 3n
3n + n = 504
4n = 504
n = 504 / 4
n = 126
Millie eats 1/3 of a packet of biscuits. She shares the rest between 3 friends.
What fraction of the original packet does each friend get?
Answer:
She gave 1/3 of the cookies to her neighbor ... Of the cookies that were left, Jane gave 3/4 to her parents, and she ate the rest. ... How many cookies did Jane's parents get if she gave them 3/4 of 16?
Step-by-step explanation:
which expression is equivalent to this polynomial expression? (8x^2y^2-9x^2y+9y) -(6x^2y-xy^2+4y) A.-7x^2+xy^2+5y B.8x^2y^2-3x^2y-xy^2+13y C.-7x^2y^2-xy^2+13y D 8x^2y^2-15x^2y+x^2+5y
Answer:
D. 8x²y² - 15x²y + xy² + 5y
General Formulas and Concepts:
Pre-Algebra
Distributive PropertyAlgebra I
Combining Like TermsStep-by-step explanation:
Step 1: Define Expression
(8x²y² - 9x²y + 9y) - (6x²y - xy² + 4y)
Step 2: Simplify
Distribute negative: 8x²y² - 9x²y + 9y - 6x²y + xy² - 4yCombine like terms (x²y): 8x²y² - 15x²y + 9y + xy² - 4yCombine like terms (y): 8x²y² - 15x²y + xy² + 5yKatie is planting a garden for her science fair project she needs 2/3 of a cup of soil to go in a different parts how many cups of soil does she need in total
Katie requires 16/3 cups of the soil for planting a garden for her science fair.
How to calculate the total amount?Algebra is a mathematical technique for calculating unknown values.
Variables represent unknown parameters in an equation and are usually categorized by a letter of the alphabet. The value of the variable is determined by isolating it.Now, for the stated question;
Katie has been planting a garden for her science fair project. She requires 2/3 of a cup of soil for each of the eight pots.
To calculate the total amount of soil required, multiply the amount required for one pot by the number of total pots.
Total soil = (2/3)×8
Total soil = (2×8)/3
Total soil = 16/3
Therefore, the total amount of the soil requires for the gardening in science fair is 16/3 cups.
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b = 2c + 6 what is the function?
Answer:
2c put me as brainlest
Step-by-step explanation:
Let's solve for c.
b=2c+6
Step 1: Flip the equation.
2c+6=b
Step 2: Add -6 to both sides.
2c+6+−6=b+−6
2c=b−6
Step 3: Divide both sides by 2.
2c
2
=
b−6
2
c=
1
2
b−3
Answer:
c=
1
2
b−3
now if ur just looking for the funtipn the asnwer would be 2c i think
Answer:
B. -6+8d-2c C. -2c+8d-6
Step-by-step explanation:
In order to determine which expressions are equivalent to you need to set the expression equal to the options available.
Find the value of the variable in the isosceles trapezoid.
The value of the variable in the isosceles trapezoid is 24.
Calculation of the value of the variable:Since the measure of one angle should be 63 degrees
And, there is the equation 2x + 15 degrees
So for determining the value of x here we have to equate the equation
So,
2x + 15 = 63
2x = 63 - 15
2x = 48
x = 24
Therefore, The value of the variable in the isosceles trapezoid is 24.
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find the sum of of LCM and GCF of 15, 35, 56
Answer:
LCM sum: 3
GCF sum: 3
3 + 3 = 6
Step-by-step explanation:
Here I listed all the factors of each number:
15: 1, 3, 5, 15
35: 1, 5, 7, 35
56: 1, 2, 4, 7, 8, 14, 28, 56
As you can see, the LCM of these numbers is 1, since none of the other factors relate to all of the number's factors. This is also the only factor that all three of these numbers share.
1 + 1 + 1 = 3
The GCF of each of the numbers is also 1.
1 + 1 + 1 = 3
Hope this helps! :D
What is the lowest form of this fraction 640/1000
Answer:
16/25
Step-by-step explanation:
Factor 40 out of 640 and 1000
This leaves you with 16 and 25.
Answer:
16/25
Step-by-step explanation:
640/1000
64/100
(divide 4/4)
16/25