2: 13.333 or 2: 13
multiply the 8 by 5/3 to combine the terms
find the values of a and b such that x squared-4x+9= (x+a) squared+b
Answer:
a = - 2, b = 5
Step-by-step explanation:
expand the right side using FOIL and compare the coefficients of like terms on both sides.
(x + a)² + b
= x² + 2ax + a² + b
compare terms with x² - 4x + 9
coefficients of x- term
- 2a = 4 ( divide both sides by - 2 )
a = - 2
compare constant terms
a² + b = 9
(- 2)² + b = 9
4 + b = 9 ( subtract 4 from both sides )
b = 5
please help! What fractional part of one semicircle does the labeled angle represent? Express
your answer as a fraction in simplest terms. Then, express the labeled angle in radian
measure,
100'
Let's consider what the problem wants us to find:
fractional part covered by the labeled angleangle in radiansLet's find the fractional part:
⇒ the fractional part is equal:
[tex]\frac{degree-covered-by-angle}{total-angle} =\frac{100}{180} =\frac{2*2*5*5}{2*2*3*3*5} =\frac{5}{3*3} =\frac{5}{9}[/tex]
Answer: The angle 100 degrees covers 5/9 of a semicircle.
Let's find the angle measure in radians:
⇒ we know that [tex]2\pi[/tex] radians are equal to 360 degrees
⇒ to convert any degree to radians, you must multiply [tex]\frac{\pi }{180}[/tex]
so [tex]100*\frac{\pi }{180} =\frac{100\pi }{180} =\frac{10}{18} \pi =\frac{5}{9} \pi[/tex]
Answer: The angle 100 degrees in radians is [tex]\frac{5}{9} \pi[/tex] which in terms of [tex]\pi[/tex] is
5/9
Hope that helps!
If f(x)=6x+1 and g(x)=2x^2-5x, what is f+g
Answer:
2x²+x+1
Step-by-step explanation:
you are adding the functions together so it is collecting like terms
6x+1
+ 2x²-5x
2x²+x+1
HELP QUICK PLS ! A circle with radius of 2 cm sits inside a 7 cm x 11 cm rectangle. What is the area of the shaded region? Round your final answer to the nearest hundredth. 7 cm 2 cm 11 cm
Answer:
77 - 8pi cm
Step-by-step explanation:
Area of Circle = 2pi*r^2 = 8pi cm
Area of rectangle = 7 X 11 = 77cm
Area of shaded region = 77cm - 8pi cm
Answer:
89.6^2 - hope this helped :)
Step-by-step explanation:
area of rectangle = 7 x 11 = 77 cm^2
area of circle = 2 x 2 x 3.14 = 12.56^ 2
all together = 89.56
rounded up = 89.6 cm^2
11 The two trapezoids shown below are
similar.
6 cm
120°
T
120°
10 cm
60°
W
80°
60°
16 cm
What is the length in centimeters of WT?
A 10 cm
B 3.8 cm
C 12 cm
D 9.6 cm
Answer:
9.6 (D)
Step-by-step explanation:
You know that when they are similar, they have a ratio. Assume that WT is x. 6:10 is the ratio, or 3:5.
So, what number is x when x:16=3:5?
(two ways)
1. You can cross multiply
x/16 = 3:5, 3x16=5x
48=5x
x=9.6
2. You can do it by looking at the answer choices and simplifying them.
10:16=5:8
NO
3.8:16=1.9:8
NO
12:16=3:4
NO
9.6:16=4.8:8=
2.4:4
0.6:1
6:10
YES
what is the soultion to the linear system y=2x and y=x+4
Answer:
x = 4; y = 8
Step-by-step explanation:
y=2x
y=x+4
2x = x + 4
x = 4
y = 2x = 2(4)
y = 8
Solution: x = 4; y = 8
please answer with all the steps and you’ll get brainliest
Answer:
x = -1
Step-by-step explanation:
You have:
[tex]\frac{3}{2x-1} =\frac{1}{x}[/tex]
Multiply both sides by 'x' to get:
[tex]\frac{3x}{2x-1} =1[/tex]
Multiply both sides by (2x-1) to get:
[tex]3x=2x-1[/tex]
Subtract 2x on both sides to get:
[tex]x=-1[/tex]
What is the area of this triangle:
One of the legs of a right triangle measures 5 cm and the other leg measures 17 cm. Find the measure of the hypotenuse. If necessary, round to the nearest tenth.
↪18cm
5^2 + 17^2 = a^2
25 + 289 = a^2
314 = a
√(314) = a
17 . 72 = a
The measure of hypotenuse is 17.72cm
it is equal to 18cm
☆...hope this helps...☆
_♡_mashi_♡_
please help to solve this
Step-by-step explanation:
I think it will help you.
The image above will help you
Saritza will find the area of the rectangle by tiling it with unit squares. The sides: 5/6 and 2/3. The question: Which is the appropriate side length for the unit square to tile Saritza’s rectangle to find the area? The answers: 1/9 yard
1/6 yard
1/3 yard
1/2 yard.
A rectangle is a 2-dimensional shape with equal opposite sides. The appropriate side length for the unit square to tile Saritza’s rectangle to find the area will be 1/9 yard
How to find the area of a rectangleA rectangle is a 2-dimensional shape with equal opposite sides.
Area of a rectangle = Length * width
Given the following parameters:
length = 5/6 yard
width = 2/3
Find the area
Area = 5/6 * 2/3
Area = 5/9 square units
The appropriate side length for the unit square to tile Saritza’s rectangle to find the area will be 1/9 yard
Learn more on area of rectangle here: https://brainly.com/question/2607596
PLEASE HELP, I'LL GIVE BRAINIEST!!!
What is b?
Answer:
B is 6
Step-by-step explanation:
When y is zero the x on the other side will represent B, because that would be the Y-intercept
is 11/2 greater, less or equal to 6/1
Answer:
6/1>11/2
Step-by-step explanation:
11/2=5.5
6/1=6
(3x + 5)(4x^2 + 8x + 40)
Step-by-step explanation:
= ( 3x + 5 ) ( 4x² + 8x + 40 )
= 3x ( 4x² + 8x + 40 ) + 5 ( 4x² + 8x + 40 )
= 12x³ + 24x²+ 120x + 20x² + 40x + 200
= 12x³ + 24x² + 20x² + 120x + 40x + 200
= 12x³ + 44x² + 160x + 200
Answer:
12x^3 +44x^2 +160x +200
Step-by-step explanation:
Distribute:
(3x+5)(4x^2 +8x+40)
3x(4x^2 +8x+40) +5(4x^2 +8x+40)
Then it would be:
(12x^3 +24x^2 +120x) + (20x^2 + 40x +200)
therefore the soloution is:
12x^3 +44x^2 +160x +200
Find the volume of a pyramid with a square base, where the area of the base is 7.5\text{ ft}^27.5 ft
2
and the height of the pyramid is 4.6\text{ ft}4.6 ft. Round your answer to the nearest tenth of a cubic foot.
Answer:
17.9 m^3
Step-by-step explanation:
A company is replacing cables with fiber optic lines in rectangular casing bcde. if segment de = 3 cm and segment be = 3.5 cm, what is the smallest diameter of pipe that will fit the fiber optic line? round your answer to the nearest hundredth. quadrilateral bcde inscribed within circle a 3.91 cm 4.24 cm 4.61 cm 4.95 cm
Answer:
4.61
Step-by-step explanation:
I saw another question that had 3 and 3 and that question's answer was 4.24, so i multiplied the 0.5 and got 4.61
4,200 is deposited into a savings account that earns 4.5% simple interest for 6 years
Answer:
7620
Step-by-step explanation:
A = P(1 + rt)
A = 6000(1 + (0.045 × 6)) = 7620
calculatorsoup
Can someone help me
Please
9z
hope it reall helps...!!!
please help with this math problem.
Answer: C
Step-by-step explanation:
x to the second power - 5x + 6
Answer:
−5
Step-by-step explanation:
−5x+6
The derivative of a polynomial is the sum of the derivatives of its terms. The derivative of a constant term is 0. The derivative of ax
n
is nax
n−1
.
−5x
1−1
Subtract 1 from 1.
−5x
0
For any term t except 0, t
0
=1.
−5
Evaluate
6−5x
A scatter plot is shown:
A scatter plot is shown. Data points are located at 0 and 1, 1 and 1.5, 2 and 2, 3 and 2.5, 4 and 3, 5 and 3.5, 6 and 4, 7 and 4.5, 8 and 5.
What type of association does the graph show between x and y? (4 points)
A: Linear positive association
B: Nonlinear positive association
c: Linear negative association
D: Nonlinear negative association
Answer:
A is the answer hope this helps
We are on my trigonometry unit and I don’t understand this question. I need work shown if at all possible!
Answer:
I think this is the right answer.
Step-by-step explanation:
Ship A is 2.653 miles from the island and ship B is 2.981 miles away from the island.
Find the surface area of the cylinder
A bouncy ball is dropped from a height of 16ft and always rebounds of the distance of the previous fall.
What distance does it rebound the 5th time?
What is the total distance the ball has travelled after this time?
Select the graph that represents h = -16t^2+ 80.
Answer:
None
Step-by-step explanation:
the slope has t to second power. So, the graph needs to be a parabola. Means second one is wrong.The slope is negative so the parabola is downward facing, so third one is wrong. When you plug in 0 for t, y becomes 80, so (0,80) point needs to be along the line. So first and second are wrong.If first one was shifted letward so the vortex was at (0.80), that would be the correct option, but not how it is not.
ABCD is not drawn to scale. Based on the angle measures given, ABCD
a parallelogram.
A. must be
B. must not be
C. may or may
not be
Answer:
C.
Explanation:
If we had the final value of C, we would be able to determine whether or not the ABCD is parallelogram. Hope this helps you out!!
Answer:
it must not be a parallelogram because it's angle is not supplementary
what is the diameter of a sphere with a volume of 6329 ft^3 to the nearest tenth of a foot
Answer:
22.9
Step-by-step explanation:
( just look up "diameter of a sphere caculator")
I NEED HELP FAST OR ILL FAIL
Draw a graph of kinetic energy against mass using the table. To plot a point, use the circle tool. To draw a line between points, use the line tool. To move a point or line, use the select tool. Once you’ve finished drawing the line, describe its shape in a text box on the graph.
here is the table Mass of Student
(kilograms) Kinetic Energy
(joules) Constant Speed
(meters/second)
27 121.5 3
36 162.0 3
45 202.5 3
54 243.0 3
64 288.0 3
73 328.5 3
Answer:
Step-by-step explanation: I failed to get this right for yall XD
The equation of line is y = ( 1/2 ) mv² , where m is the mass of the student and y is the kinetic energy
What is an Equation of a line?The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept
And y - y₁ = m ( x - x₁ )
y = y-coordinate of second point
y₁ = y-coordinate of point one
m = slope
x = x-coordinate of second point
x₁ = x-coordinate of point one
The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )
Given data ,
Let the equation of line be represented as A
Now , the value of A is
Let y represent the kinetic energy and mass is m
Now , the slope of the line is m = ( y₂ - y₁ ) / ( x₂ - x₁ )
The equation for kinetic energy is K = ( 1/2 )mv²
The constant speed v = 3 m/s
So , the linear equation is
y = { 121.5 , 162 , 202.5 , 243 , 288 , 328.5 }
x = { 27 , 36 , 45 , 54 , 64 , 73 }
The slope m = y / x
On simplifying , we get
m = 121.5 / 27 = 4.5
And , the equation of line is
y - 121.5 = 4.5 ( x - 27 )
Adding 121.5 on both sides , we get
y = 4.5x
Now , plotting the points on the graph , we get a straight line
Hence , the equation of line is solved and the graph is plotted
To learn more about equation of line click :
https://brainly.com/question/14200719
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I NEED HELP ASAP!!!!!!!!!!!!!!!!!!!!
Answer:
1. x² - 16x = -12
2. x² - 16x + 64 = -12 + 64
3. (x - 8)² = 52
4. x - 8 = ± √52
5. x = 8 ± √52
6. x = 8 ± 2√13
Step-by-step explanation:
1. Move the constant to the other side of the equation:
x² - 16x +12-12 = 0-12
x² - 16x = -12
2. Find the new value of c by using the formula [tex](\frac{b}{2} )^{2}[/tex]
[tex](\frac{-16}{2} )^{2}\\\\(-8)^{2} \\\\c =64[/tex]
3. Plug the new value of c into the equation. Make sure to add it to both sides of the equation, because if you do something to one side, you must do it to the other:
x² - 16x + 64 = -12 + 64
x² - 16x + 64 = 52
4. Form a perfect sqaure by factoring -16 and 64 by figuring out two numbers that have a sum of -16 and a product of 64:
-8 + (-8) = -16
-8 · (-8) = 64
(x - 8)²
Plugging this into the equation:
(x - 8)² = 52
5. Take the square root of both sides:
√(x - 8)² = √52
x - 8 = √52
6. Isolate x:
x - 8+8 = 2√52+8
x = 8 ± 2√52
52 can be squared, so:
x = 8 ± 2√13
hope this helps!
Joe does 25 sit ups each day. How many set ups does he do in three weeks? Remember, one week has seven days.
Answer:
525 sit-ups
Step-by-step explanatiSince there are 7 days in a week, and there are 3 weeks, you can multiply 7 * 3 = 21 to find out how many days Joe is doing situps. Next, you need to multiply the number of situps per day by the number of days: 25 * 21 = 525. Joe will do 525 situps in 3 weeks.
Hope this helps! :)