Answer:
Is 8/15
Step-by-step explanation:
Tell me if I'm wrong or not.
Please someone help!!!
Answer:
Step-by-step explanation:
surface area of cuboid=2h(l+w)
=2*2(12+5)
=4*17
=68 cm^2
Answer:
188 cm²
Step-by-step explanation:
TSA of cuboid = 2(lb + bh + hl)
= 2 {(12*2) + (2*5) + (5*12)}
= 2 (24 + 10 + 60)
= 2 (94)
= 188cm²
Complete the square to find the vertex of this parabola. x2-16y-4x-12=0
Answer:
Step-by-step explanation:
x^2-16y-4x-12=0
Transpose and separate x and y
16y = x^2-4x-12
16y = (x^2-4x+4) -16
16y = (x-2)^2 -16
y = (1/16)(x-2)^2 -1
This means that the vertex is at
(x-2)=0 or x=2
y = -1
=> vertex (2,-1)
Renita is riding her bike to school. It takes her 5 minutes to travel half a mile. Renita's school is 2 miles from her house. She plans to leave 30 minutes before school and hopes to make it on time. How long will it take Renita to ride to school?
yo I need help pls answer
Answer:
20 min
Step-by-step explanation:
To go 1 mile it takes her 10 min (5 = 1/2 multiply both sides by 2) and to get to school it would take her 2 miles, so it would take 10 min.
A triangular pyramid has a base with an area of 21.8 square meters, and lateral faces with bases of 7.1 meters and heights of 9 meters. Enter an expression that can be used to find the surface area of the triangular pyramid.
Answer:
Step-by-step explanation:
A triangular pyramid has a base with an area of 21.8 square meters, and lateral faces with bases of 7.1 meters and heights of 9 meters. Enter an expression that can be used to find the surface area of the triangular pyramid.
The expression is written as:
Surface Area = Area of the base + 1/2( Perimeter × Slant height)
Choose the correct rule for the graph shown.
A) y = 2x
B) y = 3x
C) y = 2x + 6
D) y = 3x + 3
Answer:
C
Step-by-step explanation:
C i did the test
The correct rule for the graph shown will be;
⇒ y = 3x
What is Equation of line?
The equation of line in point-slope form passing through the points (x₁ , y₁) and (x₂, y₂) with slope m is defined as;
⇒ y - y₁ = m (x - x₁)
Where, m = (y₂ - y₁) / (x₂ - x₁)
Given that;
The graph is shown in figure.
Two points on the graph are (2, 6) nd (3, 9).
Now,
Solve for the correct rule of the graph as;
Since, The equation of line in point-slope form passing through the points (x₁ , y₁) and (x₂, y₂) with slope m is defined as;
⇒ y - y₁ = m (x - x₁)
So, We find the slope of the line as;
Two points on the graph are (2, 6) and (3, 9).
Hence,
m = (9 - 6) / (3 - 2)
m = 3/1
m = 3
Thus, The equation of line in point-slope form passing through the points (2, 6) and (3, 9).with slope 3 is defined as;
⇒ y - y₁ = m (x - x₁)
⇒ y - 6 = 3 (x - 2)
⇒ y - 6 = 3x - 6
⇒ y = 3x
Thus, The correct rule for the graph shown will be;
⇒ y = 3x
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The area of the triangle shown is 9 cm2.
3.6 cm
5 cm
3 cm
What is the perimeter of the triangle?
Answer:
11.6
Step-by-step explanation:
Can somebody please please help me please
No links or files
Please help I am confused
I will give brainies
Answer: median is two, mean is two, mode is two, range is 13, the data appears to be symmetrical
Step-by-step explanation: hope this helps <3
9. The population of a certain animal species increases at a rate of 6.5% per year. There are currently
counted 120 of the animals in the habitat you are studying
Which function will model the expected change in the animal population from this point forward?
Answer:
FV= PV*(1 + g)^n
Step-by-step explanation:
Giving the following information:
Present Value (PV)= 120
Growth rate (g)= 6.5% per year
To calculate the future value of the population in any given year "n", we need to use the following formula:
FV= PV*(1 + g)^n
For example, in 10 years:
FV= 120*(1.065^10)
FV= 225
Last week, Ann bought 9 books and 5 movies for a total of $124.
Today, Ann bought 4 books and 21 movies for a total of $318.
Assuming neither item has changed in price, what is the cost of a book in dollars?
Answer:
$6
Step-by-step explanation:
Set up a system of equations where b is the cost of a book and m is the cost of a movie:
9b + 5m = 124
4b + 21m = 318
Solve by elimination by multiplying the top equation by -21 and the bottom equation by 5:
-189b - 105m = -2604
20b + 105m = 1590
Add the equations together, then solve for b:
-169b = -1014
b = 6
So, the cost of a book is $6
How to do linear functions using the table ?
Answer:
-8 = m-2+b
-2 = m-0+b
4 = m2+b
10 = m4+b
Step-by-step explanation:
You just put them in y = mx+b format
8.
In the figure, a circle is inscribed in a square
ABCD. If the area of the square is 81 cm², find
the area of the circle.
(Give the answer correct to 3 significant figures.)
Answer:
63.6cm²
Step-by-step explanation:
Area of square = 81
Side of square = [tex]\sqrt{81}[/tex]
= 9
-----------------------------------------
diameter of circle = 9
radius of circle = 9 ÷ 2
= 4.5
area of circle = πr²
= π (4.5)²
= 63.6172512
≈ 63.6 cm²
Line t is tangent to the circle. Find the mZ3.
Answer:
∠ 3 = 110°
Step-by-step explanation:
The measure of the tangent- chord angle is half the the measure of its intercepted arc.
intercepted arc = 360° - 140° = 220°
∠ 3 = 0.5 × 220° = 110°
The measure of angle 3 is 110 degree.
What is Tangent?A line that touches a circle or an ellipse at just one point is said to be tangent in geometry. Assuming a line contacts the curve at P, "P" is referred to be the point of tangency. In other words, it is described as the line that, at that particular location, indicates the slope of a curve.
We have,
Arc= 140
As, The tangent-chord angle's measurement is equal to half of its intercepted arc's measurement.
So, the intercepted arc
= 360° - 140°
= 220°
Now, <3 = 1/2 × 220° = 110°
Thus, the measure of angle 3 is 110 degree.
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Find two real numbers with a sum of 8 and a product of 12 or show that no such number exists.
I found same type of question on Brainly!
If you want you can check from other people who wrote the answer!
I'm asking you, please, a little help.
Nia works at a gas station and earns $15.50 per hour last week , she worked 29 hours .What was her gross pay?
Answer:
$449.5
Step-by-step explanation:
Given data
Earning rate= $15.50 per hour
Number of hours worked = 29 hours
Hence the amount earned is
=15.5*29
= $449.5
Hence the total amount she earned is $449.5
Please helppp not trying to fail
Answer:
A, 1 inch equals 5 feet.
Step-by-step explanation:
To calculate the answer you have to divide
30 ÷ 6 = 5
So, 1 inch represents 5 feet.
Have a great day!
Answer:
the answer is A
Step-by-step explanation:
do 30÷6 and you get 5ft. so, 1 inch represents 5ft
A room is thrice as long as the breadth. It contains 270m^3 of air and the cost of painting its four walls at Rs 15 per m^2 is Rs. 3600, find the cost of carpeting the floor at Rs. 98 per m^2.
Answer: ₹2646
Step-by-step explanation:
Given
The volume of the room is [tex]V=270\ m^3[/tex]
cost of painting the walls is ₹[tex]3600[/tex] at the rate of [tex]15\ m^2[/tex]
So, the area of walls is
[tex]\Rightarrow A=\dfrac{3600}{15}\\\\\Rightarrow A=240\ m^2[/tex]
This the area of 4 walls i.e.
[tex]\Rightarrow 240=2[hl+hb]\\\Rightarrow 120=h[l+b]\\\Rightarrow 120=4bh\quad [\text{length is thrice of width}]\\\Rightarrow 30=bh\qua \ldots(i)[/tex]
The volume of the room is given by
[tex]V=l\times b\times h\\270=3b\times b\times h\\90=hb^2\quad \ldots(ii)[/tex]
Divide (i) and (ii)
[tex]\Rightarrow \dfrac{90}{30}=\dfrac{b^2h}{bh}\\\\\Rightarrow b=3\ m[/tex]
So, the length of the room is
[tex]l=3b\\l=3\times 3\\l=9\ m[/tex]
The area of the floor is
[tex]\Rightarrow A_o=l\times b\\\Rightarrow A_o=9\times 3\\\Rightarrow A_o=27\ m^2[/tex]
The cost of flooring is
[tex]\Rightarrow 27\times 98\\\Rightarrow Rs.2646[/tex]
this is area right???
Answer:
Yes
Step-by-step explanation:
So permiter is two*lengths plus 2*width of a shape.
Area is the length times the width.
For examplel if a square has a length of 2, and a width of 3 the permiteter is:
2*2+3*3=
4+9
=
13
On the other hand, area would be:
2*3
=
6
I hope this helps!
Square root 2 Times Square root 10 divided by square root 5
Answer:
2
Step-by-step explanation:
[tex]\sqrt{2} *\sqrt{10}=\sqrt{20} \\\sqrt{20}/\sqrt{5}=\sqrt{4} =2[/tex]
The simplified expression √2 x √10 / √5 is 2.
To simplify the expression √2 x √10 / √5, we can combine the square roots and apply the properties of radicals.
First, let's simplify the numerator, which is √2 * √10.
√2 x √10 = √(2 x 10) = √20
Next, let's simplify the denominator, which is √5.
So, √20 / √5
To rationalize the denominator, we multiply both the numerator and denominator by √5:
= (√20 / √5) x (√5 / √5)
= √(20 x 5) / √(5 x 5)
= √100 / √25
= 10 / 5
= 2
Therefore, the simplified expression is 2.
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Classify the following expression below.
3x
O A Constant Monomial
B. Linear Monomial
C. Cubic Monomial
D. Quartic Monomial
Answer:
It's a cubic monomial now that it's written 3and a multiplication sign meaning three times which is also 3cubed so the answer is C
I need help with this and also the explanation plz
Answer:
The correct answer is 0 or A
Step-by-step explanation:
2/0+2 + 1/5 = 6/0+5
2/2 + 1/5 = 6/5
1 + 1/5 = 6/5
5/5 + 1/5 = 6/5
6/5 = 6/5
f(x)=(x-1)(x+3)(x-4)
Answer:
Do you want the derivative?!
Answer:
Step-by-step explanation:
multiplication: (x-1) * (x+3) * (x-4)
(x-1) * (x+3)
x^2 + 2x - 3
(x^2 + 2x -3)(x-4)
x^3-2x^2-5x+ 12
finding the zeroes:
(x-1) (x+3) (x-4)
x-1:0 x+3:0 x-4:0
+1:1 -3:3 +4: 4
x: 1 x:3 x:4
Use the table to describe the locations of the zeros of the quadratic function $f$ .
The zeros are between _ and_ , and between_ and_ .
Answer:
The zeros are between -4 and -3, and between 0 and 1
Step-by-step explanation:
Here, we want to location of the zeros
As we can know, at the zeros of a quadratic function, the y value at those point is zero
So whenever we have y value being zero, we have it that the x value at that point is a zero or root of the quadratic function
Now, looking at the table, we can see that between the point x = -4 and -3; y moved from -2 to 2
For this movement to occur, we must have passed through 0 as we have -1 ,0 and 1 between the numbers as -2 and 2
So obviously, the root is between -4 and -3
Secondly as we can see, f(x) moved from 2 to -2
The numbers between here are 1 , 0 and -1
So definitely the root lies between the x values of 0 and 1
What is the value of f(5) ?
Answer:
243
Step-by-step explanation:
Question in picture 2 1/2 x 1/3
Answer:
B
Step-by-step explanation:
What is the percent increase or decrease between $3.25 and $3.64?
Answer:
12% increase
Step-by-step explanation:
Have a good day :)
Help!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Volume is 144ft³
Step-by-step explanation:
Is algebra.
PLEASE HELP NO LINKS OR FILES.
I don't want links.
I don't want links.
I don't want links.
I don't want links.
Step-by-step explanation:
they need to add up to -56
and multiply to 180
PLS help asap, brainliest goes to whoever properly explains their answer! (i know the answer is x=3 but i don't know how to get there)
Wendell is looking over some data regarding the strength, measured in Pascals (Pa), of some building materials and how the strength relates to the length. The data are represented by the exponential function f(x) = 2x, where x is the length. Explain how he can convert this equation to a logarithmic function when strength is 8 Pascals.
Step-by-step explanation:
[tex]2 {}^{x} = 8[/tex]
Take the log.
[tex] log_{2}(8) = 3[/tex]
THIS IS LATE PLEASE HELP
Answer:
Step-by-step explanation:
y = 1.5n + 1.5 is the equation to predict height on n day.
For 9, I am not sure but I think 1) I only is the right answer because each day you get 3.5cm tall. Whereas, for the other two, depreciation value decreases the value of car each year so the depreciation cost you see in year 1 wont be equal in year 2 cuz value of car has decreased. For bacteria, I do not know how to properly word it but I think this one also lacks equal difference due to exponential growth. Hope this is right.