Answer:
Step-by-step explanation:
if you need to combine like terms=
=4+4y
there are no like terms
if you need to simply
=4(1+y)
1 1/6 + 2 3/8 =
i need help in class
Answer:
3 13/24
Step-by-step explanation:
−4+a5=8
What is the solution to the equation?
a = 44
a = 60
a = 20
a = 12
Answer:
a=12
Step-by-step explanation:
hope this helps!
WORTH 30 POINTS *will give you brainliest*
Answer:
x = 3
Step-by-step explanation:
MN is exactly half of 6x + 2 (midpoint theorem)
2(2x + 4) = 6x + 2
4x + 8 = 6x + 2
-2x + 8 = 2
-2x = -6
x = 3
2. AB = 3x + 2
AD = x +39
Answer:
x=18.5
u gotta do 3x+2=x+49
combine the like terms and it becomes 2x=37 then divide by 2 u get 18.5
plug it in as x and check if it's right
Match the property with the statement.
6(11)=11(6)
Commutative property of multiplication
Distributive property of multiplication over addition
Associative property of multiplication
Multiplication property of 1
Multiplication property of 0
Answer:
Associative Property of Multiplication
Step-by-step explanation:
associative property is where the order stays the same but the parenthesis are rearranged.
The ramp for a moving truck is 8 feet long If the bed of the truck is 5 feet off of the ground , how from the back of the truck will the ramp extend ?
Hey what is the answer to this picture what is the answer
Answer:
Hey, your picture is non-existent, you know?
A truck can be rented from Company A for $100 a day plus $0.40 per mile. Company B charges $20dayplus $0.90 per mile to rent the same truck. How many miles must be driven in a day to make the rental cost for Company A less than the rental cost of Company B?
Answer:
160 miles
Step-by-step explanation:
Given data
Company A
Charges $100 a day plus $0.40 per mile
let the number of miles be x
and the total charges be y
y= 100+0.4x-----------1
Company B
charges $20dayplus $0.90 per mile
y= 20+0.9x---------------2
Equate 1 and 2
100+0.4x= 20+0.9x
collect like terms
100-20=0.9x-0.4x
80= 0.5x
divide both sides by 0.5
x=80/0.5
x=160 miles
Hence the number of miles is 160 miles
look at the photo I need answers for a and b plzzzzz
Answer:
*A*
jog > 2 km
pushups > 25
pullups > 10
*B*
yes you would because
2500m > 2km 2500 meters is greater than or equal to 2 kilometers? check
30 pushups > 25 pushups **** 30 push ups is more than or equal to 25
push ups? check
20 pullups > 10 pullups 20 pullups greater than or equal to 10 pullups? check.
Since you do more than what the requirment standards are you will pass your test.
Step-by-step explanation:
(4z^5 - 14z^4 + 10z^3 - 16z^2 + 41z - 2) / (z - 2)
Answer:
4z4−6z3−2z2−20z+1
Step-by-step explanation:
4z5−14z4+10z3−16z2+41z−2
z−2
=
4z5−14z4+10z3−16z2+41z−2
z−2
=
(z−2)(4z4−6z3−2z2−20z+1)
z−2
=4z4−6z3−2z2−20z+1
(theres no more like terms so u cant)
83. Martina had $231. She spent 3/7 of her money on new
clothes. She spent 2/3 of the remainder on shoes and a purse.
How much money does Martina have left?
ng
True False or Rewrite.
Given a starting number, divide it by another number and multiply the result by the same number, so you finish with the number you started with
Answer:
The answer is true.
A student has a container with a volume of 1.5 liters. She estimates the volume to be 1.2 liters. By
what percent is the student's estimate off?
Answer:
The student's estimate is 20% off.
Step-by-step explanation:
Given that a student has a container with a volume of 1.5 liters, so
Exact value = 1.5 litersAs the student estimates the volume to be 1.2 liters, so
Approx value = 1.2 litersTherefore,
Percentage Error = [ |Approx Value - Exact value| ] / [ | Exact value |] × 100
= | 1.2 - 1.5 | / | 1.5 | × 100
= [ 0.3 / 1.5 ] × 100
= 0.2 × 100
= 20%
Therefore, the student's estimate is 20% off.
if (a,12) is a point on the graph of y=x^2 +x, what is a
Answer:
a = -4 or 3
Step-by-step explanation:
(x, y) therefore, with (a, 12) x = a and y = 12
y = x^2 + x
12 = a^2 + a
a^2 + a - 12 = 0 (quadratic equation)
a^2 + 4a - 3a - 12 = 0
a(a+4) - 3(a+4)
(a + 4) (a - 3) = 0
a = -4, 3
You are in the electronics store purchasing a video game that retails for 45$ the sales tax charged on the game is 2.70 what is the sales tax rate
Answer:
6%
Step-by-step explanation:
let 't' = tax rate
45t = 2.7
t = 2.7/45
t = .06
Determine the x-intercept points of the function h(x) = (x - 5)(x-6)(x + 4).
A. (-4,0), (5,0) and (6,0)
B. (4,0), (5,0) and (6,0)
C. (-6,0), (-5,0) and (-4,0)
D. (4,0), (-5,0) and (-6,0)
Answer:
A.
Step-by-step explanation:
The x-intercepts are the points where the x value is zero. In this case, to find the "zeros" of the function, set each factor to zero. x-5 -> x=5. x-6 -> x=6. x+4 -> x=-4.
Evaluate the expression.
(-7) + (-3)
Answer:
-10
Step-by-step explanation:
Answer:
= -10
Step-by-step explanation:
-7 + (-3)
=
-7 - 3
-10
What is the slope of a line that is perpendicular to the x-axis?
A.)undefined
B.)0
C.)1
D.)-1
Answer:
I think its -1
Step-by-step explanation:
PERIMETER You can use the expression 2L ( pretend that L is cursive) + 2W to find the perimeter of a rectangle, where L is the length and w is the width.
a. identify the term, coefficients, and constants in the expression
b. interpret the coefficients of the terms and i added the pic of what the rectangle looks like
Answer:
the perimeter of the rectangle =2(l+w).
The chess club can have at most 36 members. There are 3 times as many boys as girls in the chess club. Which inequality could be used to determine the possible number of girls, x, in the chess club?
Answers included in the picture
Answer:
3x+x ≤36
Step-by-step explanation:
Given that,
The chess club can have at most 36 members.
There are 3 times as many boys as girls in the chess club
Let there are x girls in the chess club.
Boys = 3x
ATQ,
3x+x ≤36
So, the correct inequality is (d) i.e. 3x+x ≤36
I have no idea help me
Answer:
khjkug
Step-by-step explanation:
Answer:
idxk either *hug*
Step-by-step explanation:
Solve for [x]. The pair of polygons are similar.
How-many-numbers-from-1-to-999-do-not-have-any-repeated-digits? And how-many-are-even?
• The single-digit numbers 1-9 do not have any repeated digits, so they contribute 9 numbers.
• Of double-digit numbers 10-99, the first digit can be picked from 1-9 and the second from 0-9 minus whichever one is picked for the first digit, so they contribute 9×(10 - 1) = 81 numbers.
• Of the triple-digit numbers 100-999, the first digit is picked from 1-9 and the second and third digits from 0-9, so they contribute 9×(10 - 1)×(10 - 2) = 648 numbers.
So there are 9 + 81 + 648 = 738 numbers from 1-999 without repeated digits.
Of these numbers, the ones that are even end in 0, 2, 4, 6, or 8.
• Of the single-digits, there are 4 numbers.
• Of the double-digits, the first digit can be chosen from 1-9 and the second from {0, 2, 4, 6, 8}.
•• If the first digit is odd and picked from {1, 3, 5, 7, 9}, then they contribute 5×5 = 25 numbers.
•• If the first digit is even, then they contribute 4×(5 - 1) = 16 numbers (because the first digit can't be 0).
• Of the triple-digits, the third digit is picked from {0, 2, 4, 6, 8}.
•• If both the first and second digits are odd, then they contribute 5×(5 - 1)×5 = 100 numbers.
•• If the first is odd and the second is even, then they contribute 5×5×(5 - 1) = 100 numbers.
•• If the first is even and the second is odd, then they contribute 4×5×(5 - 1) = 80 numbers.
•• If both are even, then they contribute 4×(5 - 1)×(5 - 2) = 48 numbers.
So there are 4 + (25 + 16) + (100 + 100 + 80 + 48) = 373 even numbers from 1-999 with no repeating digits.
The vertices of a triangle are A (0,0), B (3, 4) and C (-4,5). Find the length of each side.
Answer:
AB = 5 units
BC = 5[tex]\sqrt{2}[/tex] units
AC = [tex]\sqrt{41}[/tex] or about 6.4 units
Step-by-step explanation:
distance formula: square root of the sum of the difference of the y-values and the difference of the x-values
ex, dAB = √(4-0)² + (3-0)²
= √16 + 9
= √25
= 5
12 dogs decreased by 25% find the new amoount
Answer:
8
Step-by-step explanation:
25% of 12 is 4
or
1/4 of 12 is 4
12-4=8
Answer:
9
Step-by-step explanation:
12/4 = 3
The 4 comes from 100% divided by 25%.
Then 12 dogs -3 equals 9 dogs
A recipe for pizza crust calls for cups of flour. This amount of flour will make a pizza crust with an area of 200 square inches.
Mr. Jason uses this recipe to make a pizza crust with an area of 400 square inches. Since he needs to double the recipe to get a 400 square inch crust, how many cups of flour will he need to use. Explain your answer.
Answer:
Mr. Jason uses this recipe to make a pizza crust with an area of 400 square inches. Since he needs to double the recipe to get a 400 square inch crust, how many cups of flour will he need to use. Explain your answer.
Step-by-step explanation:
Diego is selling raffle tickets for $1.75 per ticket .Number of tickets sold 20 50 r Amount earned in dollars
Step-by-step explanation:
35.00$ r=5 hopefully that's what you were asking for I don't understand the 50 are amount earned in dollars amount earned in dollars would have $35
I need help please. Thanks!
Answer:
A
Step-by-step explanation:
We are given the function f and its derivative, given by:
[tex]f^\prime(x)=x^2-a^2=(x-a)(x+a)[/tex]
Remember that f(x) is decreasing when f'(x) < 0.
And f(x) is increasing when f'(x) > 0.
Firstly, determining our zeros for f'(x), we see that:
[tex]0=(x-a)(x+a)\Rightarrow x=a, -a[/tex]
Since a is a (non-zero) positive constant, -a is negative.
We can create the following number line:
<-----(-a)-----0-----(a)----->
Next, we will test values to the left of -a by using (-a - 1). So:
[tex]f^\prime(-a-1)=(-a-1-a)(-a-1+a)=(-2a-1)(-1)=2a+1[/tex]
Since a is a positive constant, (2a + 1) will be positive as well.
So, since f'(x) > 0 for x < -a, f(x) increases for all x < -a.
To test values between -a and a, we can use 0. Hence:
[tex]f^\prime(0)=(0-a)(0+a)=-a^2[/tex]
This will always be negative.
So, since f'(x) < 0 for -a < x < a, f(x) decreases for all -a < x < a.
Lasting, we can test all values greater than a by using (a + 1). So:
[tex]f^\prime(a+1)=(a+1-a)(a+1+a)=(1)(2a+1)=2a+1[/tex]
Again, since a > 0, (2a + 1) will always be positive.
So, since f'(x) > 0 for x > a, f(x) increases for all x > a.
The answer choices ask for the domain for which f(x) is decreasing.
f(x) is decreasing for -a < x < a since f'(x) < 0 for -a < x < a.
So, the correct answer is A.
What is the y-intercept of the line y + 11 = -2(x + 1.5)?
y-intercept = -14
Answer:
x=0 y=-14
Step-by-step explanation:
lmk if you need the steps ill put them in comments if u need them :)
A bookstore manager has 11 employees in his store. Inventory day is
approaching, and he wants all of his employees to work that day. On
Inventory day, all of the books in the store must be scanned
electronically so that they are in the system. The manager wants each
employee to scan an equal number of books. There are currently
5544 books in the store. Some of the employees call off sick on
inventory day.
Define a variable for the number of employees that called off
sick. Then, use this variable to write an expression for the
number of books each employee has to scan after some
employees called off sick.
