Answer:
C) -10 * (- 8) = 80
Step-by-step explanation:
(- 10) * (½) * (- 8)
Checking all the options
A) (½) * - 8 = - ( - 8/16 )
1/2 * - 8
= -8/2
= -4
(½) * - 8 = -4
(½) * - 8 = - ( - 8/16 ) Wrong
B) (-10) * (½) = 5
-10 * 1/2
= -10/2
= -5
(-10) * (½) = -5
(-10) * (½) = 5 Wrong
C) -10 * (- 8) = 80
-10 * (- 8)
= -10 × - 8
= + 80
-10 * (- 8) = 80 Correct
D) -8 * 2 = - 16
-8 * 2
= -16 correct but we don't have 2 in the expression so, it is wrong
The correct way to start solving the problem is C) -10 * (- 8) = 80
(- 10) * (½) * (- 8)
-10 * (- 8) = 80
80 * 1/2 = 80 / 2
= 40
A rectangular swimming pool has a length of 50m and a breadth of 30m. During a swimming proficiency test, Ethan has to swim from one corner of the pool to the opposite corner. Find the distance Ethan has to swim.
Use the Pythagorean theorem to find the diagonal.
Diagonal = sqrt( 50^2 + 30^2)
Diagonal = sqrt(2500 + 900)
Diagonal = sqrt(3400)
Diagonal = 58.309 meters ( round as needed)
-3x-8/4=10
What’s is value of x
Answer:
x= -16
Step-by-step explanation:
-3x-8/ 4 = 10
Here we can try to isolate x and so we have to first multiply 4 on each side.
-3x-8= 40
Then we can add the 8 to each side.
-3x= 48
Next, divide the -3 onto each side and we can get the answer!
x= -16
Peter compra 8 limones por $6. Cada limón tiene el mismo precio.
¿Cuál es el costo de 1 limón?
Respuesta:
Cada limón cuesta $0.75
Explicación:
$6 ➗ 8 limones = $0.75 por limon
Espero que esto ayude. Lo siento si está mal. Eres amado y eres hermoso/guapo
-Bee
anyone know how to solve this please?
Answer:
y = √55
Step-by-step explanation:
from the Euclidean theorem
y^2 = CB × AC
y^2 = 5 × 11
y^2 = 55
y = √55
What is the solution to this inequality?
-13x < 65
Answer:
x > -5 or x = (-5, + oo)Step-by-step explanation:
-13x < 65x > - 65/13x > -5x = (-5, + oo)What is the sales tax on a $17,500 truck if the tax rate is 6%?
Answer:
$1050
Step-by-step explanation:
The sales tax on a $17,500 truck when the tax rate is 6% is $1050.
Feel free to give brainliest.
Have an outstanding day!
If you’re super bored and not dry click here!
Answer:
........
Step-by-step explanation:
The blue dot is at what value on the number line? Pls help me??
Answer:
8
Step-by-step explanation:
What has a fraction in its numerator, denominator, or both
Answer:
love i
Step-by-step explanation:
Ram has three times as many Rupees to coins as he has rupees 5 coins if he has in all a sum of rupees 77 how many coins of Rupee 2 does he have
9514 1404 393
Answer:
21 coins of ₹2
Step-by-step explanation:
Let x represent the number of ₹2 coins, and y the number of ₹5 coins. Then the total value of the coins is ...
2x +5y = 77
and the relationship between numbers of coins is ...
x = 3y
Substituting for x, we have ...
2(3y) +5y = 77
y = 77/11 = 7 . . . . simplify, divide by the coefficient of y
x = 3(7) = 21 . . . . find x from the second equation
Ram has 21 of the ₹2 coins.
MATH HELP PLS!!! MARKING BRAINLIST!! MaTH
Answer:
11
Step-by-step explanation:
Answer:
s = 11Step-by-step explanation:
What is the volume of the prism, in cubic centimeters?
Answer:
the volume of the prism is 168 cubic centimeters.
Step-by-step explanation:
The volume of the prism is ;120 cubic centimeters.
What is rectangular prism ?Connect three rectangles edge to edge. To close their triangular mouths from both ends. That shape is called a triangular prism.
A rectangular prism has six faces (each one of these faces are rectangle), 8 vertices, and 12 edges.
Noted that this rectangular prism has 5 layers and the volume of one of these layers is 18 cubic centimeters ().
Considering that all these layers are equal, the volume of this prism can be calculated with:
Volume = Base area x length
= 1/2 x 6 x 4 x 10
= 240/2
= 120
Learn more about volumes of triangular prisms here:
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A square plot of land will be fully used for a square swimming pool with a 5 foot wide walkway around it. The area of the entire plot, including the walkway, is A square feet. Which expression gives the length of the pool?
Answer:
The expression that gives the length of the pool is [tex]\sqrt{A}[/tex] - 5
Step-by-step explanation:
Assume that the length of the pool is x feet
∵ The length of the pool is x feet
∵ The wide of the walkway around the pool is 5 feet
∴ The total length of the pool with the walkway = (x + 5) feet
∵ The area of the entire plot, including the walkway, is A square feet
∴ The area of the entire plot, including the walkway = A feet²
∵ The area of the square = (length)²
→ Substitute the length by (x + 5)
∴ The area of the entire plot, including the walkway = (x + 5)² feet²
→ Equate it by A
∴ A = (x + 5)²
→ To find x take square root for both sides
∵ [tex]\sqrt{A}[/tex] = [tex]\sqrt{(x+5)^{2}}[/tex]
→ Cancel the square root of the right side by power 2
∴ [tex]\sqrt{A}[/tex] = x + 5
→ Subtract 5 from both sides
∵ [tex]\sqrt{A}[/tex] - 5 = x + 5 - 5
∴ [tex]\sqrt{A}[/tex] - 5 = x
→ x represents the length of the pool
∴ The length of the pool is [tex]\sqrt{A}[/tex] - 5 feet
∴ The expression that gives the length of the pool is [tex]\sqrt{A}[/tex] - 5
The length of the pool will be √A-10.
What is area?Area is defined as the total space taken up by a flat surface or shape of an object.
Given that, A square plot of land will be fully used for a square swimming pool with a 5-foot wide walkway around it. The area of the entire plot, including the walkway, is A square foot.
The area of a square is side².
Let the side of the walkway be (x+10)
A = (x+10)²
√A = x+10
x = √A-10
Hence, The length of the pool will be √A-10.
Learn more about area;
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Please help me
23+25
I’m not good at adding a whole bunch of digits
Answer:
Can't tell if this is a joke or not but eh
23+25=48
Step-by-step explanation:
Answer:
48 is the sum of 23+25
explanation
What is the vertex of the parabola: y=2(x-3)2^+4
Answer:
Vertex: (3,4)
Step-by-step explanation:
Vertex form of the quadratic equation
The vertex form of the quadratic function has the following equation:
[tex]y=a(x-h)^2+k[/tex]
Where (h, k) is the vertex of the parabola that results when plotting the function, and a is a coefficient different from zero.
The parabola is given as:
[tex]y=2(x-3)^2+4[/tex]
Comparing with the equation:
a=2, Vertex: (3,4)
The graph of the parabola is shown in the image below
What equation models the line that goes through the point (12,3) and has a slope of -1/3
Answer:
y= -1/3x+7
Step-by-step explanation:
(5m +1)(5m-1) factoring the difference of squares. I NEED HELP
Answer:
This can't be further factored. It can also be written as (25m² - 1)
Step-by-step explanation:
It's factored as much as it can be already ^^
Lucia draws a square and plots the center of the square, She claims that any rotation about
the center of the square that is a multiple of 45° will carry the square onto itself
Which statement best describes Lucia's claim?
A. Lucia's claim is correct since any rotation that carries a square onto itself is a multiple of 45°,
B. Lucia's claim is correct since any rotation that is a multiple of 45° carries a square onto itself
C. Lucia's claim is incorrect since not all rotations that carry a square onto itself are multiples of 45,
D. Lucia's claim is incorrect since not all rotations that are multiples of 45° carry a square onto itself
Answer:
The 2 si right
Step-by-step explanation:
We want to study the symmetry of a square and which rotations carry the square into itself.
We will see that the correct option is the last one:
Not all rotations of multiples of 45° carry the square into itself.
Here we have the claim:
" any rotation about the center of the square that is a multiple of 45° will carry the square onto itself"
And we want to see if this is true or not.
What we can try to do, is find a counterexample to see if this is false.
Let's draw a square, then make a point in the center of it, and draw a segment between the center and the right side.
Now rotate that segment around the center of the square (and along with it, the whole square) by 45°.
(note that 45° is a multiple of 45°).
Doing this, you will see that this rotation does not rotate the square into itself.
So the correct option is D, not all rotations of 45° rotate the square into itself. While rotations of 90°, 180°, 270°, etc... will map the square into itself, we just found an example of a rotation of a multiple of 45° that does not do it.
An image of the rotation can be seen below:
If you want to learn more, you can read:
https://brainly.com/question/11392539
p+1/p=7 then p^3+1/p^3
What is the domain and range of f(x)= |x-1| +2 ?
Help!!!!
Gears A and B turn together. Gear A turns 20 times when
Gear B turns 30 times. When Gear A turns 60 times,
how many times does Gear B turn? Show your work
Answer: Gear B turns 90 times when gear A turns 60 times
Step-by-step explanation: To solve this you just 30x3=90
Can someone please help me??!
Answer:
3
Step-by-step explanation:
Rise over run. [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]. Say the two y points are 4 and 2 and the two x points are 10 and 4. [tex]\frac{10-4}{4-2}[/tex] which is [tex]\frac{6}{2}[/tex]. [tex]\frac{6}{2}[/tex] simplifies to [tex]\frac{3}{1}[/tex].
ABCD is a parallelogram.
6. Find the slope of the given line. Write your answer in simplest form. 7
Answer
(7),(14)
Step-by-step explanation:
7
14
7x2=14
Identify the error in this column:
(x2 + 3x + 18) = (x + 3)(x + 6)
Answer:
The error is found in the "3x" part of the equation.
Step-by-step explanation:
The rest of the equation is correct because x times x = x2. And 6 times 3 = 18. But x times 6 = 6x, and 3 times x = 3x, and 6x+3x=9x. 9x doesn't = 3x
Answer:
It should be 9x instead of 3x on the left-hand side of the equation.
Step-by-step explanation:
We can expand the equation (x+3)(x+6) to find out:
(x+3)(x+6) = x² + 6x + 3x + 18
We multiply x with x then x with 6.
Then, we multiply 3 with x and 3 with 6.
x² + 6x + 3x + 18 = x² + 9x + 18
find f'(x) for f(x) = -8x2-5x-4
Thank you :)
Answer:
Step-by-step explanation:
Use the constant, constant multiple, and power rules for derivatives: bring down the exponent and multiply it by the constant, then replace it with an exponent that is 1 less than what it was. The derivative of
[tex]f(x)=-8x^2-5x-4[/tex] would look like this:
[tex]f'(x)=-8(2)x^1-5-0[/tex] simplifying to
[tex]f'(x)=-16x-5[/tex]
Use the number line. Enter the integer value that point D represents.
Number line from -10 to 10 with 20 tick marks. Point D is 1 tick mark to the left of 5.
Given:
A number line from -10 to 10 with 20 tick marks.
Point D is 1 tick mark to the left of 5.
To find:
The integer value that represents point D.
Solution:
A number line from -10 to 10 with 20 tick marks. It means, each mark represents the integer values from -10 to 10.
We know that, as we move towards left on a number line the value decreases and as we move towards right the value increases.
Point D is 1 tick mark to the left of 5. It means, point D represents the integer value which is 1 less than 5.
[tex]5-1=4[/tex]
Therefore, point D represents the integer 4.
I need help with math
Answer:x=19 degrees
Step-by-step explanation:
Answer:
x = 19
Step-by-step explanation:
[tex]m\widehat{ XPZ} = 271\degree... (given) \\\\
m\widehat {XZ} =360\degree - 271\degree\\\\
m\widehat {XZ} =89\degree\\\\
m\angle XYZ = \frac{1}{2} \times (m\widehat{ XPZ} -m\widehat {XZ} ) \\\\
(4x +15)\degree = \frac{1}{2} \times(271\degree - 89\degree) \\\\
(4x +15)\degree = \frac{1}{2} \times 182\degree\\\\
(4x +15)\degree = 91\degree\\\\
4x + 15= 91\\\\
4x = 91-15\\\\
4x = 76\\\\
x = \frac{76}{4}\\\\
\huge \orange {\boxed {x = 19}}
[/tex]
Mr. Smith is paid $9.50 per hour for fixing watches. write an expression for the amount of money Mr.smith earns in h hours.
In addition to his hourly rate, Mr. smith is paid $2.20 for each watch he fixes. Write an expression for his income if he fixes r watches per hour.
Answer:
9.5h, 2.2r+9.5h
Step-by-step explanation:
Answer:
B & D
TRUST ME IT'S CORRECT I GUESSED AND GOT IT RIGHT
Determine the equation of the line that passes through the given points. (3,18) and (8,33)
Answer:
[tex]y=3x+9[/tex]
Step-by-step explanation:
We want to determine the equation of the line that passes through the points (3, 18) and (8, 33).
First, let’s determine the slope. We can use the slope formula:
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
We will let (3, 18) be (x₁, y₁) and (8, 33) be (x₂, y₂). Then it follows that:
[tex]\begin{aligned} m&=\frac{33-18}{8-3} \\ m&=\frac{15}{3} \\ m&=3\end{aligned}[/tex]
Hence, the slope is 3.
Now, we can use the point-slope form:
[tex]y-y_1=m(x-x_1)[/tex]
We will substitute 3. for m. We can use either of the two points for (x₁, y₁) but let’s let (3, 18) be (x₁, y₁) for consistency. Thus:
[tex]y-18=3(x-3)[/tex]
Then it follows that:
[tex]\begin{aligned} y-18&=3x-9 \\ y&=3x+9 \end{aligned}[/tex]
Therefore, our equation is:
[tex]y=3x+9[/tex]