Why not? Well the 6x-3x portion simplifies to 3x. So the x terms are equivalent; however, the 4 and 8 in the first expression combine to 12, which is not equivalent to that 4 in the other expression.
In other words, 6x+4-3x+8 should simplify to 3x+12 and not 3x+4.
What is the total area of the shape?
A 35 cm?
B 100 cm?
C 70 cm?
D 50 cm?
Answer:
C. 70 cm
Step-by-step explanation:
Split all the shapes, so, the square would be:
4 × 10 = 40
---------------------------------------------------------------------------------------------------------------
Each triangle has an area of 7.5:
7.5 × 4 = 30
---------------------------------------------------------------------------------------------------------------
30 + 40 = 70
---------------------------------------------------------------------------------------------------------------
Have a good day :)
Answer:
70
Step-by-step explanation:
square= 40 (10x4)
two triangles= another square with smaller dimensions= 15
there are two more triangles on the other side so 15x2=30
30+40=70
help me plzz nowwwwww plzz
Answer:
18
Step-by-step explanation:
colored: white
3 :8
We have 48 white papers so multiply each side by 6
colored: white
3*6 : 8*6
18 48
There are 18 colored papers
Answer:
C) 18
Step-by-step explanation:
3/8 = c/48
cross-multiply to get:
8c = 144
c = 18
I NEED THIS QUICK no links !!!!! (math)
answer: the answer is c
Four students spoke to the Parents Club for a total of 2/3 hour. Each student spoke for the same amount of time. How long did each student speak?
Thank you for anyone who knows this
Answer:
Part (a) Vertex = (-3, -1)Part (b) Vertex = (4, 5)Part (c) function 2; max value = 5=====================================================
Explanations:
Part (a)
In this case, the vertex is the highest point, so the vertex of function 1 is (-3, -1)
If the parabola was flipped so that it opened upward, instead of downward, then the vertex would be the lowest point.
----------------------------
Part (b)
We could graph this function to see where the highest or lowest point is, but there's another way we could find the vertex using algebra.
The given equation is in the form y = ax^2 + bx + c where in this case
a = -2b = 16c = -27The a and b values are plugged into the formula below to get
h = -b/(2a)
h = -16/(2*(-2))
h = -16/(-4)
h = 4
This is the x coordinate the vertex since the vertex is (h,k)
To find k, we plug that value of h into the original function to find its corresponding y value.
y = -2x^2 + 16x - 27
y = -2(4)^2 + 16(4) - 27
y = -2(16) + 16(4) - 27
y = -32 + 64 - 27
y = 5
We found that h = 4 leads to k = 5. The vertex is (h,k) = (4, 5)
----------------------------
Part (c)
We'll compare the y values of each vertex
Function 1 has a vertex of (-3, 1)Function 2 has a vertex of (4, 5)The vertex with the larger y value is the winner, so that would be function 2. This parabola reaches a higher peak compared to the other curve.
The max value here is y = 5. In other words, it's the maximum output the function can produce.
If you graphed functions 1 and 2 together on the same xy grid (see below), you'll see that the curve for function 2 reaches a higher peak.
If a function is defined by the equation y=-5x+1 and the domain is the set {-2,0,2,4},
which set below represents the range of the function?
(1) {11, 12, 13, 14}
(3) {-10, -1,9,19)
(2) {-19, -9,1,10)
(4) {51, 53, 55, 57)
A
Identify the input values.
Since there is an even root, exclude any real numbers that result in a negative number in the radicand
The solution(s) are the domain of the function.
Mark Me Brainest
In ΔABC, the measure of ∠C=90°, BA = 41, CB = 40, and AC = 9. What ratio represents the cosine of ∠B?
Answer:
40/41
Step-by-step explanation:
From the given diagram;
BA is the hypotenuse = 41
AC is the opposite = 9
CB is the adjacent = 40
Cos<B = adjaccent/hyp
Cos<B = CB/BA
Cos<B = 40/41
Hence the required ratio is 40/41
What is the slope?
m= 1/2
m=2/1
m= -1/2
m= -2/1
Answer:
m = 2/1
Step-by-step explanation:
Slope is rise over run
Looking at the graph we know the slope is positive since it goes up from left to right
We have a point at (2,0)
We have another point at (3,2)
m = (y2-y1)/(x2-x1)
= (2-0)/(3-2)
= 2/1
Which of the following equations correctly represents a circle centered at the origin with a radius of 5?
Answer:
The Choose (B)
(B) x²+y²=25
Carlos bought a new skateboard for $99.46 and a helmet and pad for $73.49. How much did Carlos spend in all?
I nee it done today
Answer:
Step-by-step explanation:
173
Please help. Select all expressions that are equivalent to 6x +1 - (3x - 1).
A) 6x + 1 - 3x - 1
B) 6x + - 3x + 1 + 1
C)3x +2
D) 6x - 3x +1-1
E) 6x + 1 + -3x - -1
Answer:
A
Step-by-step explanation:
look at how the sign are set +-can't be correct so b is out c some of the equation is missing d in d the equation is different e you can't have--1 that's wrong
4M
+N7
____
123
Determine the value of the missing digits
Answer:
M = 6
N= 7
Step-by-step explanation:
M + 7 = 3
M= 6
6 + 7 = 13, so we get 3 and carry 1
Now 1 + 4 + N = 12
1 + 4 + 7 = 12
So N = 7
Therefore,
46 + 77 = 123
A gym teacher has a large canvas bag that contains 8 tennis balls, 2 volleyballs, 1 basketball, 3 baseballs, and 5 footballs. If you reach into the bag at random, what is the probability that you do not select a basketball?
Answer:
18/1
Step-by-step explanation:
I took all of the numbers and added them the subtracted 1 because you don't wanna include the basketball
The probability of not selecting a basketball from the bag is 18/19, or approximately 0.9474 (rounded to four decimal places).
Here, we have,
To find the probability of not selecting a basketball from the bag, we need to calculate the ratio of the number of items that are not basketballs to the total number of items in the bag.
Let's calculate it step by step:
Total number of items in the bag = 8 (tennis balls) + 2 (volleyballs) + 1 (basketball) + 3 (baseballs) + 5 (footballs) = 19.
Number of items that are not basketballs = 8 (tennis balls) + 2 (volleyballs) + 3 (baseballs) + 5 (footballs) = 18.
Therefore, the probability of not selecting a basketball is:
Number of items that are not basketballs / Total number of items in the bag = 18 / 19.
Hence, the probability of not selecting a basketball from the bag is 18/19, or approximately 0.9474 (rounded to four decimal places).
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help now pls i need a lot of help pls help meh
Answer:
28+36+y= 180
The value of y is 116
Step-by-step explanation:
Solve.
-2} -(-5) = 0
를
Answer:
[tex] - 2 \frac{1}{3} - ( - 5) \\ = - \frac{7}{3} + 5 \\ = \frac{8}{3} \\ = 2 \frac{2}{3} [/tex]
Kawai requires a loan of $33,000 to buy a used sport utility vehicle. His banks offers financing at 6.75% compounded monthly, for a term of 6 years, payable monthly. What is the total cost of this loan?
Answer:
$49,126.87
Step-by-step explanation:
Given data
Principal= $33,000
rate= 6.75%
Time= 6 years
First, convert R as a percent to r as a decimal
r = R/100
r = 6.65/100
r = 0.0665 rate per year,
Then solve the equation for A
A = P(1 + r/n)^nt
A = 33,000.00(1 + 0.0665/12)^(12)(6)
A = 33,000.00(1 + 0.005541667)^(72)
A = $49,126.87
Hence the final amount is $49,126.87
hey! i’ll give brainliest please help
Answer: Its the first one
1. True or False
3 € {1, 2, 3, 4, 5}
True
O False
the anwser for this is true
Answer:
I also think it's true because it mostly made sense to me.
what is 9×4−(2×1/2)
(1/2 Is a fraction btw)
Answer:
35
Step-by-step explanation:
I used Symbolab here's the screenshot
An inground pool is 34 feet long and x inches wide. Its brick walkway is 4 feet wide around the pool. What expression represents the area of the brick walkway?
Answer:
[tex]A_w=238x-2176[/tex]
Step-by-step explanation:
From the question we are told that:
Length of pool [tex]L=34ft[/tex]
Width of Pool [tex]W=x[/tex].
Brick walkway Width [tex]W_b=4[/tex]
Generally the expression for a Area of pool is mathematically given by
[tex]A=L*W[/tex]
[tex]A=34*x[/tex]
[tex]A=34x[/tex]
Generally the expression for a Area of pool + Walkway is mathematically given by
[tex]A'=L'*B'[/tex]
where
[tex]L' =L+2(W_b)[/tex]
[tex]L' =34+2(4)[/tex]
[tex]L'=34+8[/tex]
[tex]L'=272[/tex]
And
[tex]W'=W+2(W_b)[/tex]
[tex]W' =x+2(4)[/tex]
[tex]W' =x+8[/tex]
Therefore
[tex]A'=L'*B'[/tex]
[tex]A'=(272)*(x+8)[/tex]
[tex]A'=272x+2176[/tex]
Generally the expression for a Area of Walkway is mathematically given by
[tex]A_w=Area\ of\ Pool+Walkway-Area\ of\ Pool[/tex]
[tex]A_w=A'-A[/tex]
[tex]A_w=272x+2176-34x[/tex]
[tex]A_w=238x-2176[/tex]
Hi can some one please help me :)!
Answer:
Step-by-step explanation:
rational integer and real
it is rational because it is a perfect root of 2
it is a integer because every positive and negative numbers are integers.
Can somebody help with this
Answer:
B
Step-by-step explanation:
Domain is the x value and it is asking your for the coordinates with the same x value.
graph the equation (x - 3)^2 + (y - 2)^2 = 25 and y = 6.
Answer:
x=6, x=0
Step-by-step explanation:
[tex](x - 3) ^{2}[/tex]+ [tex](y - 2) ^{2}[/tex]= 25
[tex](x - 3) ^{2}[/tex]+ [tex](6 - 2) ^{2}[/tex]= 25
x=6, x=0
help me ill give u 11 points if u do this for me !!!
Answer:
I believe it's the third and fourth answers.
Step-by-step explanation:
Which of the following expressions will produce an answer with three significant figures? Check all that apply. A. 101 - 83.4 B. 121 - 1.75 O C. 7.23 + 12.6 D. 17. 1.5
Answer: option A and D results in 3 significant figures.
Step-by-step explanation:
A. [tex]101 - 83.4 =17.6[/tex]
The number 17.6 has three significant figures.
B. [tex]121 - 1.75 =119.25[/tex]
The number 119.25 has 5 significant figures
C. [tex]7.23 + 12.6=19.83[/tex]
The number of 19.83 has 4 significant figures.
D. [tex]17\cdot 1.5=25.5[/tex]
The number of 25.5 has 3 significant figures.
Hence, option A and D results in 3 significant figures.
I NEED THIS ANWER ASAP
Electric guitar kits originally cost d dollars online. You buy the kits on sale for 50% of the original price, plus a shipping fee of $4.50 per kit.
After painting and assembly, you sell each guitar online for (1.5d + 4.5) dollars. Find your profit on each guitar sold
Answer:
your profit is Double the price that you bought the kits
Step-by-step explanation:
x= cost of kit
you buy it x/2
x/2 + 4.5 .... (1)
x + x/2 +4.5 .... (2)
let x = 40
40/2 + 4.5 = 24.5
40 + 40/2 + 4.5 = 64.5
64.5 - 24.5 = 40
so
you buy it in x/2 = 40/2 = 20
and sell it in x = 40
40/20 = 2
your profit is Double the price that you bought the kits
The profit is Double the price that you bought the kits.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
We have been given that the cost of the kits on sale for 50% of the original price, plus a shipping fee of $4.50 per kit.
Let x be the cost of kit.
Therefore,
x/2 + 4.5 .... (1)
x + x/2 +4.5 .... (2)
let x = 40
40/2 + 4.5 = 24.5
40 + 40/2 + 4.5 = 64.5
64.5 - 24.5 = 40
Therefore, buy it in x/2 = 40/2 = 20
and sell it in x = 40
40/20 = 2
Hence, the profit is Double the price that you bought the kits.
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Lilly went shopping with her mother. She took $48.95 with her to spend. She spent $23.57 at one store. How much money did she have left?
Answer:
Difference= $25.28
Step-by-step explanation:
Giving the following information:
She took $48.95 with her to spend. She spent $23.57 at one store.
To calculate the money she has left, we need to use the following formula:
Difference= total amount of money - money spent
Difference= 48.95 - 23.57
Difference= $25.28
Center Middle School is having a pie eating contest and needs a team consisting of 5 people from Mrs. Brown's classroom. There are 20 students in Mrs. Brown's classroom. How many different teams could be formed?
The number of teams formed by the total number of students will be 4.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that centre, Middle School is having a pie eating contest and needs a team consisting of 5 people from Mrs Brown's classroom. There are 20 students in Mrs Brown's classroom.
The number of teams will be calculated as,
N = 20 / 5
Therefore, the number of teams formed by the total number of students will be 4.
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There are 65 chairs set up for a movie. they are arranged into 5. How many chairs are in each row
help plz it’s a test
what is the area of the base of the cone below?
a) 2.4 ft^2
b) 4 ft^2
c) 22.5 ft^2
d) 26 ft^2
Answer:
[tex] \frac{1}{3} \times 12 \times area = 90 \\ area = 90 \div 4 = 22.5[/tex]