Answer:
19
Step-by-step explanation:
ok is this just a joke?
nine plus ten
9 + 10 = 19
9. Which property is illustrated?
For all expressions a, b, and c, if a = b , then a+c=b+c.
Distributive Property of Equality
Associative Property of Addition
Commutative Property of Addition
Addition Property of Equality
Subtraction Property of Equality
10. True or False: An argument that uses logic in the form of definitions, properties, and previously proved
Answer:
It is Distributed property and False
Step-by-step explanation:
A 300-g package of pepperoni costs $4.29.
a) What is the cost per 100 g?
b) How much would 1 kg cost?
c) How much pepperoni could you buy with $20?
Answer:
a. $1.43 per 100 gram
b. $10.43 for a kilogram (1000 grams)
c. 1 kilogram and 398 grams, or 1398 grams
Step-by-step explanation:
Evaluate f(x) = x+2 for x=3
Answer:
f=2
Step-by-step explanation:
Answer:
f ( x ) = 5
Step-by-step explanation:
Step 1:
f ( x ) = x + 2 Function
Step 2:
f ( x ) = 3 + 2 Input x
Answer:
f ( x ) = 5 Add
Hope This Helps :)
evaluate the determinant please answer i have limited time
See Explanation
Step-by-step explanation:
[tex] \begin{bmatrix} 1 & 2 \\ 3 & 4 \end{bmatrix} \\ \\ = 4 \times 1 - 3 \times 2 \\ \\ = 4 - 6 \\ \\ = - 2[/tex]
[tex] \begin{bmatrix} 4 & 2 & 6 \\ - 1 & - 4 & 5\\ 3 & 7 & 2 \end{bmatrix} \\ \\
=4(-4\times 2-5\times 7)\\ -2(-1\times 2-5\times 3)\\ +6(-1\times 7-(-4)\times 3)\\\\
= 4(-8-35) -2(-2-15) \\+6(-7+12)\\\\
= 4(-43) -2(-17) +6(5)\\\\
= - 172 + 34 + 30\\\\
= 64 - 172\\\\
= - 108 \\[/tex]
Simplify this algebraic expression completely.
8y – 2(y+4)
ОА. бу – 4
ОВ. бу+2
Ос. бу+ 4
D. бу – 8
Answer:
2 (3 y - 4) <- Complete answer, but since you only have those choices it's
6 y - 8
Step-by-step explanation:
Simplify the following:
8 y - 2 (y + 4)
Hint: | Distribute -2 over y + 4.
-2 (y + 4) = -2 y - 8:
8 y + -2 y - 8
Hint: | Group like terms in 8 y - 2 y - 8.
Grouping like terms, 8 y - 2 y - 8 = (8 y - 2 y) - 8:
(8 y - 2 y) - 8
Hint: | Combine like terms in 8 y - 2 y.
8 y - 2 y = 6 y:
6 y - 8
Hint: | Factor out the greatest common divisor of the coefficients of 6 y - 8.
Factor 2 out of 6 y - 8:
Answer: 2 (3 y - 4)
Plz help I will mark you brainlist plz
Simplify by combining like terms. 3x3 + 9z + 2x3 + 5z + 6x2
Answer:
5x^3 + 6x^2 + 14z
Step-by-step explanation:
When combining like terms with exponents, you just add them together as long as they have the same exponent. 3x^3 + 2x^3 = 5x^3
9z+5z=14z
6x^2 has no like terms.
The graph of the equation h=-at^2+bt+c, which describes how the height, h, of a hit baseball changes over time, t, is shown below.
Answer:
K
Step-by-step explanation:
Quadrants I, II, and III.
Answer:
k
Step-by-step explanation:
Select the THREE true statements.
Your answer:
A. Dilations always increase the length of line segments.
B. Dilations take perpendicular lines to perpendicular lines.
C. Dilations of an angle are congruent to the original angle.
D. Dilations increase the measure of angles.
E. Dilations of a triangle are congruent to the original triangle.
F. Dilations of a triangle are similar to the original triangle.
Answer:
B. Dilations take perpendicular lines to perpendicular lines.
C. Dilations of an angle are congruent to the original angle.
F. Dilations of a triangle are similar to the original triangle.
What equation models it’s position, y, with respect to time, x?
Answer:
i would say the first one
Step-by-step explanation:
2. Suppose that four times the square of a number equals 20 times that num-
ber. What is the number?
3. Twice the square of the sum of a number and 3 is 98. Find the number. help me in number 2 and 3 please
Answer:
2. the answer is 5 because the square of 5 is 25 and 4 x 25 = 100 which is 20 x 5
Step-by-step explanation:
We are required to find the unknown number from the expression
2.
let
the number = x
four times the square of a number equals 20 times that number
4x² = 20x
Divide both sides by 4x
x = 5
The number is 5
3.
let
x = the unknown number
Twice the square of the sum of a number and 3 is 98
sum of a number and 3 = x + 3
square of the sum = (x+3)²
Twice the square = 2(x + 3)²
2(x + 3)² = 98
2(x² + 6x + 9) = 98
2x² + 12x + 18 = 98
2x² + 12x +18 - 98 = 0
2x² + 12x - 80 = 0
x² + 6x - 40 = 0
using factorization method to solve the quadratic equation
x² + 10x - 4x - 40 = 0
x(x + 10) - 4(x + 10) = 0
(x + 10) ( x - 4) = 0
x + 10 = 0 or x - 4 = 0
x = -10 or x = 4
Therefore, the unknown number is -10 or 4
Read more:
https://brainly.com/question/19952256
2/5(j+40)=-4 can you show the work plz
Answer:
-50
Step-by-step explanation:
2/5(j + 40) = -4
j+40 = -4 ÷2/5
j+40 = -10
j = -10 - 40
j = -50
Plz help due today!!!
Answer:
55 is c
Step-by-step explanation:
what number times 4 equals 20? ...5
so times 11 and 5 and you'll get 55
Answer:
c=55
20/4 is 5
11*5=55
Christine has always been weak in mathematics. Based on her performance prior to the final exam in Calculus, there is a 42% chance that she will fail the course if she does not have a tutor. With a tutor, her probability of failing decreases to 12%. There is only a 52% chance that she will find a tutor at such short notice.
Complete Question
Christine has always been weak in mathematics. Based on her performance prior to the final exam in Calculus, there is a 42% chance that she will fail the course if she does not have a tutor. With a tutor, her probability of failing decreases to 12%. There is only a 52% chance that she will find a tutor at such short notice
a What is the probability that Christine fails the course
b Christine ends up failing the course. What is the probability that she had found a tutor? (Round your answer to 4 decimal places.) Probability
Answer:
a
[tex]P(F) = 0.264[/tex]
b
[tex]P(T | F ) = 0.23636 [/tex]
Step-by-step explanation:
From the question we are told that
The probability that Christine will fail the course if she does not have a tutor is [tex]P(F| T') = 0.42[/tex]
The probability that Christine will fail the course if she has a tutor is [tex]P(F| T) = 0.12[/tex]
The probability that she will find a tutor is [tex]P(T) = 0.52[/tex]
Generally the probability that she will not find a tutor is
[tex]P(T') = 1 - 0.52[/tex]
=> [tex]P(T') = 0.48[/tex]
Generally the probability of failing the course is
[tex]P(F) = P(F \ n \ T) + P(F \ n \ T')[/tex]
=> [tex]P(F) = P(F| T) * P(T) + P(A | T') * P(T')[/tex]
=> [tex]P(F) = 0.12 * 0.52 + 0.42* 0.48[/tex]
=> [tex]P(F) = 0.264[/tex]
Generally if Christine ends up failing the course the probability that she had found a tutor? (Round your answer to 4 decimal places.) Probability is mathematically represented as
[tex]P(T | F ) = \frac{ P(F | T) * P(T)}{ P(F)}[/tex]
=> [tex]P(T | F ) = \frac{ 0.12 * 0.52}{ 0.264}[/tex]
=> [tex]P(T | F ) = 0.23636 [/tex]
You score 84 points in six games. How much do you score per game? Write your answer in unit rate form
Answer
14 points/1 game
Which is equal to 14 points per game.
Step-by-step explanation:
What is the difference of the polynomials below?
(2x²-3x+8)-(3x²+7x--2)
A)-x²-4x+10
B)-x²-10x+10
C)5x²+4x+6
D)x²-10x+10
Answer:
B
Step-by-step explanation:
(2x² - 3x + 8) - (3x² + 7x - 2)
~Distribute the negative sign
2x² - 3x + 8 - 3x² - 7x + 2
~Combine like terms
-x² - 10x + 10
Best of Luck!
An electrician charges $53 per hour and his apprentice charges $22 per hour. On a job wiring a house the electrician worked four hours more than the apprentice. Together they earned a total of $624.50 for the job. How much did the election earn for the rewiring?
Answer:
$503.5Step-by-step explanation:
let the apprentice duration of work be x hours
so that the electrician worked (x+4)hours
53*(x+4)+22*x=624.50
opening the bracket we have
53x+212+22x=624.50
collect like terms we have
53x+22x+212=624.50
75x+212=624.50
75x=624.50-212
75x=412.5
divide both sides by 75 we have
x=412.5/75
x=5.5
The electrician worked a total of (x+4)
5.5+4=9.5 hours or 9hours 30min
given that the electrician earns $53 per hour
then,for the work he would make 53*9.5=$503.5
What is an equivalent expression to 9(c+5)=
Answer:
9 times 5 + c
Step-by-step explanation:
What is 1,675 rounded to the hundreds place?
Worth 26 points
Who ever answer first will be marked brainiest
Answer:
1700
Step-by-step explanation:
Because it is above 1650, round up into the hundreds place, so it makes 1700!
If it is 1649 or below, you would round down to 1600.
Note: The hundreds place is the 3rd from the right, so use the two from the right to round!
6x - Зу = 12
What are the x and y intercept
y = 1.6x + 48
Based on the equation, what is the approximate shoe size for a man having a height of 60 inches?
A. 7 1/2
B. 10 1/2
C. 12
D. 14
Answer:1
14
Step-by-step explanation:
substitue 60 into 1.6
y = 1.6(60) + 48
96 + 48
144
2
The points (5,-2) and (7,r) lie on a line with slope 4. Find the missing coordinate r.
Answer:
A slope of four means that it moves up four and over 1. Since 7-5 is 2, you must half the 1. (7, 2.5)
Help me pleaseeee...
Answer:
90
Step-by-step explanation:
PVQ = 60 an RVS = 30, 60 + 30 = 90
It’s all log base 10
I need help with all of them
Answer:
im not very sure what you marked off i cant really tell what it is in the middle of them
-5(-2)=
PLEASE HELP ASAP!!
Answer:
The anwser is 10
Step-by-step explanation:
a negitive times a negitive equals a positive
Answer:
10
Step-by-step explanation:
A negative times a negative equals a positiveSo, -5 × -2 is the same thing as 5 × 25 × 2 = 10I hope this helps!
Can someone please help me with this problem
Answer:
1. 35
2. 145
3. 55
4. 90
5. 145
Step-by-step explanation:
1. 35: angle 1 and 2 are a linear pair (meaning it is in one line and adds to 180). Since we know angle 2 is 145, ∠1 = 180 - 145
∠1 = 35
2. 145: ∠7 = ∠2 because they are alternate angles and alternate angles are equal
3. 55: ∠7 = ∠5 + ∠4 because vertically opposite angles are equal. We know that ∠5 = 90, hence ∠4 would equal 145 - 90 = 55
4. ∠5 = 90. It is given
5. 145: ∠9 = ∠2 because they are vertically opposite
Please help me find the answer
34=___
Answer:
34 divided by 2
Step-by-step explanation:
come onnnnnnnnnn
Dao receives an employee discount on the purchase of a new automobile. The automobile that he is interested in has a
sticker price of $18,560. If his discount is 18 percent, what is the price that Dao will pay?
O $3,340.80
$3,712.00
$12,992.00
$15,219.20
Answer: It’s $15,219.20
a.k.a D at least that’s what it says on mine
Step-by-step explanation:
Hope this helps and just answered question correct on edg so yea
find the midpoint of the segment with the following endpoints. (6, 3) and (0, 9)
Answer:
(3,6)
Step-by-step explanation:
In order to find midpoint you need to add x1 + x2 then divide by 2. Then the same for y. y1 + y2 then divide by two.
In this case we have 6 + 0 = 6 then divide by 2 which is 3.
Then we have 3 + 9 = 12 then divide by 2 which is 6.
lindsay has 7/8 yards of fabric. to make a purse, she needs 2/3 of the fabric how much fabric did she use?
Answer:
Lindsay used 16/24 yards of fabric and has 5/24 yards left over
Step-by-step explanation:
7/8 - 2/3 = ?
Since both fractions have unlike denominators, we are gonna have to rewrite the fractions so we can subtract. We are gonna find the least common denominators, to be able to subtract.
(7/8 x 3/3) - (2/3 x 8/8) = ?
Complete the multiplication and the equation becomes :
21/24 (7/8) - 16/24 (2/3) = 5/24
