$185.8
ExplanationTo find the total we must add the value of the 3 items
so
Step 1
a)given
\(\begin{gathered} chair:\text{ 35.50} \\ desk\text{ : 125.55} \\ lamp:\text{ 24.75} \end{gathered}\)so, the total cost is
\(total\text{ cost= cost of chair+cost of desk+cost of lamp}\)replace and do the addtion
\(\begin{gathered} total\text{ cost=35.50+125.55+24.75} \\ total\text{ cost=185.8} \end{gathered}\)so, the total cost of the items is $185.8
I hope this helps you
What is the surface area of the rectangular pyramid below?
Answer:
A. 675 units²
Step-by-step explanation:
The formula for the surface area of a square pyramid is ...
A = s(s +2h)
where s is the side length of the base, and h is the slant height of a face.
__
use the formulaThe given pyramid has s=15 and h=15, so the surface area is ...
A = (15)(15 +2×15) = 15(45) = 675 . . . square units
if x-y = 8 and xy=5 , find x^2 + y^2
Answer:
x² + y² = 74
Step-by-step explanation:
given
(x - y) = 8 ( square both sides )
(x - y)² = 8² ← expand left side using FOIL
x² - 2xy + y² = 64 ← substitute xy = 5
x² - 2(5) + y² = 64
x² - 10 + y² = 64 ( add 10 to both sides )
x² + y² = 74
16. Plot the points P(-2,1), Q (2,1), R(3,2) and S(-1,2)
and write the name of the figure thus obtained.
Answer:
I don't knowwwwwwwwwwwww
Answer:
00000000000000000000000000
Step-by-step explanation:
00000000000000000
Need Help please, here is screenshot
1)
The axis of symmetry is x = -6.
2)
Vertex is (-6, 26).
3)
f(x) has a maximum value.
4)
f(x) is concave down.
What is an equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
Example:
2x + 3 = 7 is an equation.
We have,
f(x) = -x² - 12x - 10
This is in the form of ax² + bx + c.
a = -1, b = -12, c = -10
The axis of symmetry is x = -b/2a
x = 12/(-2)
x = -6
Now,
f(x) = -x² - 12x - 10
f(x) = -(x² + 12x + 10)
f(x) = - { (x² + 12x + 36) - 36 + 10}
f(x) = -(x + 6)² + 26
This is in the form of f(x) = a (x - h)² + k
a = -1, h = -6, k = 26
Vertex = (h, k) = (-6, 26)
Now,
f(x) = -x² - 12x - 10
f'(x) = -2x - 12
f''(x) = -2
It is a negative value.
This means f(x) has a maximum value.
Now,
From the graph, we see that f(x) is concave down.
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Someone please help me
Answer: the general equation for a circle is ( x - h )^2 + ( y - k )^2 = r^2, where ( h, k ) is the center and r is the radius
Answer:
its false
Step-by-step explanation: i am 100% sure
I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER
Answer:
(49,-56)
Step-by-step explanation:
I not sure but scale factor show the magnitude therefore you multiply by the scale factor to get the image.
Hiro rolls a fair pair of six-sided dice. The sample space of all possible outcomes is shown below.
Let AAA be the event that the first die is one and BBB be the event that the sum of the dice is eight.
What is P(A\text{ or }B)P(A or B)P, left parenthesis, A, start text, space, o, r, space, end text, B, right parenthesis, the probability that the first die is one or the sum of the dice is eight?
\qquad
Answer: \(\dfrac{11}{36}\)
Step-by-step explanation:
Total outcomes for rolling a pair of six-sided dice n(S)= 6 x 6 =36
Let A be the event that the first die is one and B be the event that the sum of the dice is eight.
A = {(1,1), (1,2), (1,3), (1,4), (1,5), (1,6)}
P(A)= \(=\dfrac{n(A)}{n(S)}=\dfrac{6}{36}\)
B= {(2,6), (6,2), (3,5), (5, 3), (4,4)}
P(B)= \(=\dfrac{n(B)}{n(S)}=\dfrac{5}{36}\)
A ∩ B = Ф
P(A ∩ B)=0
P(A or B)= P(A)+P(B)+P(A∩ B)
\(=\dfrac{6}{36}+\dfrac{5}{36}+0\\=\dfrac{11}{36}\)
Hence, P(A or B) = \(\dfrac{11}{36}\)
plz answer this question-(4b-6ab-7b)
Answer:
...
Step-by-step explanation:
Answer:
6ab + 3b
Can I have brainliest?
each function
f(x)=-4x-5;
ion for
Find ƒ(1)
for the given
When x is equal to 1, the Function f(x) = -4x - 5 yields a value of -9.
The find ƒ(1) for the function f(x) = -4x - 5, we need to substitute x = 1 into the function and evaluate the expression.
Replacing x with 1, we have:
ƒ(1) = -4(1) - 5
Simplifying further:
ƒ(1) = -4 - 5
ƒ(1) = -9
Therefore, when x is equal to 1, the value of the function f(x) = -4x - 5 is ƒ(1) = -9.
Let's break down the steps taken to arrive at the solution:
1. Start with the function f(x) = -4x - 5.
2. Replace x with 1 in the function.
3. Evaluate the expression by performing the necessary operations.
4. Simplify the expression to obtain the final result.
In this case, substituting x = 1 into the function f(x) = -4x - 5 gives us ƒ(1) = -9 as the output.
It is essential to note that the notation ƒ(1) represents the value of the function ƒ(x) when x is equal to 1. It signifies evaluating the function at a specific input value, which, in this case, is 1.
Thus, when x is equal to 1, the function f(x) = -4x - 5 yields a value of -9.
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Domain and range and function.
Need ASAP
Answer:
Domain: \(All \ real\ numbers\)
Range: \(y\geq -5\)
Function: \(|x|-5=y\)
Step-by-step explanation:
The domain of this function is all real numbers, this is because any real number can be substituted into this function to produce a real output.
The range of this function is (\(y\geq -5\)), this is because all outputs are greater than (-5), rather (-5) is the lowest output that one can have.
The function is \(|x|-5=y\). As one can see, the function as the shape of an absolute value function, the v-shape composed of two (\(y=x\)) lines facing opposite directions. The graph has been shifted downwards by (5) units, one can see this because of the vertex formed by the two intersecting lines.
6x + y = 8
y= -6x + 8
Answer:
y = -6x + 8
Step-by-step explanation:
\begin{bmatrix}6x+y=8\\ y=-6x+8\end{bmatrix}
I don't know why it came out like this
Joseph buys a gallon of milk every 6th day and a box of cereal every 8th day. He bought both items today. In how many days will he buy both items together again?
Answer:
24 days
Step-by-step explanation:
Milk: 6, 12, 18, 24, 30
Cereal: 8, 16, 24
You can see that 24 matches up with both cycle.
A right triangle has a leg length of square root of 6 and a hypotenuse length of 7. Determine the length of the other leg of the right triangle. 3 36 square root of 39 square root of 43
Answer:
√43
Step-by-step explanation:
Implement the Pythagorean formula to solve for sides of a right triangle: a^2 + b^2 = c^2, where "a" and "b" are the legs and "c" is the hypotenuse.
a = √6 and c = 49
√6^2 + b^2 = 49
6 + b^2 = 49
b^2 = 43
b = √43
Answer:
The square root of 43
Step-by-step explanation:
I did this in class the other day
Find the volume of a pyramid with a square base, where the side length of the base is
10.6
in
10.6 in and the height of the pyramid is
12.3
in
12.3 in. Round your answer to the nearest tenth of a cubic inch.
Answer:
V = 460.68
Step-by-step explanation:
V=(lwh)/3
4 ^ 2 - (3.1 + 6.4) + 4.5
Answer:11
Step-by-step explanation:
there you go
Please answer the question
Answer:
4.
a.octagon
b.squertagon
c.triangle
t.b
Which of the points below correctly plots the point (−2,−5π/3)?
Select the correct answer below:
A
B
C
D
E
F
Answer: F
Step-by-step explanation:
Answer: correct answer is A
Step-by-step explanation:
Remember that the coordinates (−2,−5π3) tell us the radius r=−2 and the angle θ=−5π3. So the point should be on the circle labeled 2 and form an angle of −5π3 with the negative x-axis. Point A is the correct point.
Find the length and width of a rectangle that has the given perimeter and a maximum area? Perimeter: 164 meters
The request dimensions of the rectangle for maximum area are,
Length of perimeter is, \(l = 41 m . ,\)
Width of perimeter is, \(w = 41m\)
The perimeter of a shape is defined as the total length of its boundary. The perimeter of a shape is determined by adding the length of all the sides and edges enclosing the shape. It is measured in linear units of measurement like centimeters, meters, inches, or feet.
Let \(l\) and \(w\) denote the length and width of the Rectangle.
Its Perimeter is \(2(l+w)\), which is given to be, 164.
\(l+w\) = 164/2
\(l+w\) =82 (Equation-1)
Now, Area \(A\) of the Rectangle, is, given by,
\(A = lw\)
We can substitute equation-1,
\(A = l(82-l)\)
\(A = 82l-l^{2}\)
which is a function of \(l\),
So let us,
Write it as,
\(A(l) = 82l-l^{2}\) (Equation-2)
We are request to maximize \(A\).
We know that, for \(A_{max}\), \(A^{|}l\) = 0 , and \(A^{||} l\) < 0
We can equation-2,
\(A^{|}l\) = 0 ⇒ \(82-2l = 0\)
\(l = \frac{82}{2}\)
\(l = 41\)
Further,
\(A(l) = -2\) < 0, ∀\(l\) , and in particular, for \(l = 41\) , too.
Thus, \(l = 41\) gives \(A_{max}\)
Hence, the request dimensions of the rectangle for maximum area are,
\(l = 41 m . ,\) and \(w = 82 -l = 41m\)
Therefore,
The request dimensions of the rectangle for maximum area are,
Length of perimeter is, \(l = 41 m . ,\)
Width of perimeter is, \(w = 41m\)
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add. write 3/8+7/8 as a fraction in the simplest form.
Answer:
1
1 ---
4
Step-by-step explanation:
Answer:
5/4
Step-by-step explanation:
3/ 8 + 7/8 = 10/8
GCF is 2.
10/2 = 5
8/2 = 4
The simplest form is 5/4.
Help pldssssssss………………..
The missing value for the quadratic function is given as follows:
y = -3.
How to obtain the quadratic function?As a function of it's roots x* and x**, the quadratic function is defined as follows:
y = a(x - x*)(x - x**)
In which a is the leading coefficient.
The roots of the function are the values of x when y = 0, hence:
x* = -4, x** = -2.
Thus:
y = a(x + 4)(x + 2)
y = a(x² + 6x + 8).
When x = 0, y = -8, hence the leading coefficient a of the function is given as follows:
8a = -8
a = -1.
Hence:
y = -x² - 6x - 8;
The missing value is the value of y when x = -1, hence:
y = -(-1)² - 6(-1) - 8
y = -3.
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Please help me solve for x
Answer
x = 32
step by step explanation
a triangle has one side length of 9cm and another side of .12cm what are 3 possible answers for the third side
If a triangle has one side length of 9cm and another side of .12cm . The 3 possible answers for the third side are: 17, 20, and 21.
What are the possible lengths for the third side?To determine the possible lengths for the third side of the triangle, we can use the triangle inequality theorem, which states that the sum of any two sides of a triangle must be greater than the third side.
Using this theorem, the possible lengths for the third side can be found by checking which of the following inequalities hold:
9 + 12 > x
9 + x > 12
12 + x > 9
Simplifying these inequalities, we get:
x > -3 (always true)
x > -9 (always true)
x > -3 (always true)
Therefore, the possible lengths for the third side of the triangle must satisfy x > -9, which eliminates the answer 3 (which is less than 9 - 12 = -3).
The possible lengths for the third side are:
9 + 12 > x, so x < 21
9 + x > 12, so x > -3
12 + x > 9, so x > -3
Therefore, the possible lengths for the third side of the triangle are:
17 (9 + 12 = 21, which is greater than 17)
20 (9 + 12 = 21, which is greater than 20)
21 (9 + 12 = 21, which is equal to 21)
So, the three possible lengths for the third side of the triangle are 17, 20, and 21.
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The complete question is:
A triangle has one side length of 9
centimeters (cm) and another side length of 12
cm.
Which answers are possible lengths for the third side?
Select three that apply
17
22
9
21
20
3
Tickets for the school football game cost $10 for students and $12 for non-students. A total of 150 ticketswere sold and $1440 was collected.Let x = the # of student tickets soldLet y = the # of non-student tickets sold
x = students = $10
y = non students = $12
total tickets = 150
Equations
x + y = 150
10x + 12y = 1440
x = 150 - y
10(150 - y) + 12y = 1440
1500 - 10y + 12y = 1440
2y = 1440 - 1500
2y = -60
y = -60/2
y = 30
x = 150 -
Whats is the area of the figure? in squares inches
27 points! please help me if you can <3 and yes I have been working on this for almost 4 hours
Answer:
330 milkshakes
Step-by-step explanation:
240 divided by 8 = 90
90 = number of large milkshakes
240 + 90 = 330
Is the quotient of -125 and five positive negative or zero
Answer:
negative
Step-by-step explanation:
we know this because a negative divided by a positive is a negative
Answer:
Step-by-step explanation:
= -125 ÷ 5
= -25
It's negative
LM is a perpendicular bisector of NP. The length of LN is 12w + 7, and rhe length of LP is 15w - 5. What is the length of LN?(every capital letter has a line over it and i cant add that. Ex. There would be a line over LP. Because its a line. But i dont know to do that so im adding this!)
LN = LP
So, we can say:
12w + 7 = 15w - 5
Solving for w,
7 + 5 = 15w - 12w
12 = 3w
w = 12/3
w = 4
Length of LN is 12w + 7
plug in w = 4 to get:
12 (4) + 7
48 + 7 = 55
Length of LN is 55
Indigo went shopping for a new pair of sneakers. Sales tax where she lives is 3.75%. The price of the pair of sneakers is $20. Find the total price including tax. Round to the nearest cent.
Step-by-step explanation:
price=$20tax rate=$3.75multiply the price with rate and you will get tax the add it to the real pricetotal price incl. tax= 20+(20*3.75/100)=20.75there is your answer...The total price of sneakers including tax will be equal to $20.75.
What is the Percentage?The Latin phrase "per centum," which means "by the hundred," is where the English word "percentage" comes from. Percentage segments are those with a numerator of 100. In other words, it is a connection where the whole is always deemed to be valued 100.
As per the given information in the question,
Price of sneakers = $20
Tax on sneakers = 3.75%
Then, the amount of tax will be,
(20 × 3.75)/100
= 75/100
= $0.75
Then, the total price of the sneakers will be,
$20 + $0.75
= $20.75
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Find the value of x .. assume that segments that appear to be tangent are tangent .
We got x = 16.54 by using Pythagorean theorem .
What is the Pythagorean theorem in plain English?
According to Pythagoras's Theorem, the square of the hypotenuse side in a right-angled triangle is equal to the sum of the squares of the other two sides. Perpendicular, Base, and Hypotenuse are the names of this triangle's three sides.angle of semicircle is always be 90° .
18² = 7.1² + x²
324 = 50.41 + x²
x² = 324 - 50.41
= 273.59
x = √ 273.59
x = 16.54
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5 - 9.5 = 5 + ? HELPPP