Answer:
The probabiltiy that a member swims given they play bridge is 82%.
Step-by-step explanation:
P(Swims given Bridge) = P(Swims and Bridge)/P(Bridge)
= 0.72 / 0.87
= 0.82
2x2 - 4x –9 = 0
Completing the swuare
Step-by-step explanation:
[tex](a-b)^2=a^2-2ab+b^2\\\\2x^2-4x-9=0\qquad|\text{add 9 to both sides}\\\\2x^2-4x-9+9=0+9\\\\2x^2-4x=9\qquad|\text{divide both sides by 2}\\\\\dfrac{2x^2}{2}-\dfrac{4x}{2}=\dfrac{9}{2}\\\\x^2-2x=4.5\\\\x^2-2\cdot x\cdot1=4.5\qquad|\text{add}\ 1^2\ \text{to both sides}\\\\x^2-2\cdot x\cdot1+1^2=4.5+1^2\\\\(x-1)^2=5.5\iff x-1=\pm\sqrt{5.5}\qquad|\text{add 1 to both sides}\\\\x=1-\sqrt{5.5}\ \vee\ x=1+\sqrt{5.5}[/tex]
Someone please answer this assignment is due in 5 minutes
A recipe for banana bread requires 3 cups of bananas for every 1 1/2 cups of sugar used. At this rate, how many cups of sugar should be used if 8 cups of bananas are used?
I need help fast!!!!
Answer:
Step-by-step explanation:
You really should object to this question. Technically, none of the answers are correct. The dot is blacked in. Therefore it includes the endpoint.
Either ≤ or ≥ should be used.
Now that I have finished nit picking, the closest answer is
10x ≤ -5 Divide by 10
10x/10 ≤ -5/10
x ≤ -0.5
The closest answer is a.
=====================
w + 125.2 = 255 Subtract 125.2 from both sides
w = 255 - 125.2
w = 129.8
Two collinear points are given in the table below
X Y
0 0
5 -2
Select all points that do not lie on this line.
a.(−10,−4)
b.(−3,−45)
c.(−15,6)
d.(−10,4)
e.(2,−45)
Answer:
I think the answer are C. , d. , E.
Step-by-step explanation:
Answer:
b & c
Step-by-step explanation: I got a 100 on the USA/test
please help me asap
Answer:
8 1/3 and 2/7
Step-by-step explanation:
point of (9,0)(9,0) after a translation left 2 units and up 5 units?
Answer:
It's (7,5) I believe
Step-by-step explanation:
The population of Laredo, Texas, was about 215,500 in 2007. It was about 123,000 in 1990. If we assume that the population growth is constant and t represents the number of years after 1990, write a linear equation
Answer:
y=5441t+123,000
Step-by-step explanation:
5441 is the population increase per year and 123,000 is when we start added the population increase. to get this equation i found the population increase between 2007 and 1990 which is 215,500-123,000 which is 92,500. to find the population increase per year you divide that by 17 which is the difference between 2007 and 1990 and you would get 5441.176. but since you can have part of a person i rounded it to 5441.
Answer: y=5441t+123000
We know the population was 215500 in 2007
We also know the population was about 123000 in 1990
So first we want to find the slope (m=y2-y1/x2-x1), we subtract those two numbers 215500-123000 and subtract 2007-19990. Leaving us with 92500/17, once you divide that you’ll get 5441.17647 . But since we are talking about people you round to the nearest whole number leaving us with 5441.
A city sets up 14 rows of chairs for an outdoor concert. Each row has 2 more chairs than the previous row. If the first row has 10 chairs, how many chairs are in the 8th row?
Answer:
24 chairs in the 8th row
Step-by-step explanation:
row 1 = 10 chairs
row 2 = 12 chairs
row 3 = 14 chairs
row 4 = 16 chairs
row 5 = 18 chairs
row 6 = 20 chairs
row 7 = 22 chairs
row 8 = 24 chairs
If A city sets up 14 rows of chairs for an outdoor concert. Each row has 2 more chairs than the previous row. If the first row has 10 chairs then 8th row has 24 chairs.
What is Sequence?A sequence is an enumerated collection of objects in which repetitions are allowed and order matters.
The first row has 10 seats,
Each row has 2 more chairs than the previous row.
10,12,14.....
a=10,d=2,n=8
The nth term of Arithmetic sequence is aₙ=a+(n-1)d
an equal to a plus n minus one times of d
a₈=10+(8-1)2
=10+7(2)
=10+14
=24
Hence If the first row has 10 chairs, then the 8th row has 24 chairs.
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All of the points in the picture are on the same line.Find the values for "a" and "b". Explain your reasoning.
Answer:
I don’t know
Step-by-step explanation:
Go ask your teacher please help me
With this What is a linear function in the form y= mx + b for the line passing through (4.5, -4.25) with y-intercept 2.5?
What is the modulus after (–1 + StartRoot 3 EndRoot i ) gets raised to the 6th power?
2
12
32
64
Answer:
64
Step-by-step explanation:
Once you convert -1+sqrt3i intro trig form, the modulus is 2. Since you are raising it to the 6th power, 2 to the 6th power is 64. So, the modulus of (-1+sqrt3i)^6 is 64. Hope this helps!
Answer:
64
Step-by-step explanation:
Emelia earns $8.74 per hour plus a gas allowance of $3.50 per day at her job. How much does Emelia’s job pay in a day when she works 5 1 /2 hours? Write an expression and evaluate for 5 1 /2 hours.
Answer:
$51.63
Step-by-step explanation:
8.75x + 3.50y
x=5.5 y=1
(8.75x5.5) + (3.50x1)
=51.625
=$51.63
I hope this helped you! If it did, please consider rating, pressing thanks, and giving my answer 'Brainliest.' Have a great day! :)
Question 1
x + 6 = 23 x = ____
Question 2
Solve.
x - 7 = 12 x = ___
Question 3
Solve. Round your answer to the nearest tenth.
4x = 13 x = ____
Question 4
Solve. Round your answer to the nearest tenth.
3x + 1 = 15
Answer:
1. x=17
2. x=19
3. x=3
4. x=4
Answer:
question 1:
3/11
question 2:
- 7/11
Step-by-step explanation:
in
3) The bakers at Healthy Bakery can make 350 bagels in 2 hours. How many
bagels can they bake in 22 hours? What was that rate per hour?
Answer:
3850
Step-by-step explanation:
Total bagels in 22 hours 3850, and the rate per hour is 175
Add 2/5+ 3/4 . Find common denominators
Answer: 23/20 or 1 3/20 20 is the common denominator
Step-by-step explanation: Step One: multiply denominators Take the 5 out of 2/5 and take the 4 out of 3/4 and multiply them 5 times 4 = 20 Step 2: add numerator Then Add the 2 out of 2/5 to the 3 out of 3/4 leaving you with 5/20. Step 3: find answer for your equation it simplify's to 1 3/20 or 23/20 in a improper fraction.
f(5)=3x+2
What is the solution
Answer:
f=3/5x+2/5c
Step-by-step explanation:
Which expression shows how to convert 60 hours to days? StartFraction 60 hours Over 1 EndFraction times StartFraction 1 hour Over 24 days EndFraction StartFraction 60 hours Over 1 EndFraction times StartFraction 1 day Over 24 hours EndFraction StartFraction 60 hours Over 1 EndFraction times StartFraction 24 hours Over 1 day EndFraction StartFraction 60 hours Over 1 EndFraction times StartFraction 24 days Over 1 hour EndFraction
Answer:B
Step-by-step explanation:
brainliest for whoever gets it right :D
Write an expression for 368 and b more
Answer:
368=bx
Step-by-step explanation:
just quessing hope i helped.
34.321 or 34.32 is greater
Answer:
34.321 is slightly greater
Step-by-step explanation:
it is greater by 0.001
Find the area of the shaded region in the figure below, if the radius of the outer circle is 10 and the radius of the inner circle is 8. Keep your answer is terms of pi.
Answer:
I assume that the figure your figure is like this:
The Area of the shaded Region is 36π .
What is a Circle ?A circle is a round shaped figure whose all the point lie in the same plane.
It is given that Area of the shaded region needs to be found in the figure attached
Radius of the outer circle is 10
and Radius of the inner circle is 8
The area of the shaded region = Area of the outer circle - area of the inner circle
Area of a circle = πr²
r is the radius of the circle.
Area of the outer circle = π(10)²
Area of the outer circle = 100π
Area of the inner circle = π (8)²
Area of the inner circle = 64 π
Area of the shaded Region = 100π - 64 π
Area of the shaded Region = 36π
Therefore the Area of the shaded Region is 36π .
The missing figure is attached with the answer.
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What is does 4x + 9 = 68
Answer:
x=19.75
Step-by-step explanation:
4x + 9 = 68
Subtract 9 from both sides:
4x = 59
Divide both sides by 4
X = 59/4
X = 14.75
A cafeteria serves each student a 1/4 of a pound hamburger. How many
pounds of ground beef must be purchased to serve 700 students?
Which of the following is closer to 8
√61
√62
√65
√66
Answer:
√65
Step-by-step explanation:
We know that √64 is 8
So, the square root of the number closest to 64 in the list will be the closest to 8
In the List, √62 = √(64-2) [difference of 2]
√65 = √(64 + 1) [difference of 1]
Since √65 has the least difference from √64, we can say that √65 will be the closest to 8 in the given list
14. Taxi company A charges $2 per ride plus $0.25 per mile. Taxi company B charges $3 per ride plus $0.15 per mile. Which equation could be used to find the number of miles for which both companies cost the same for one ride? O A.2.25m = 3.15m
B. 2 + 0.15m = 3 + 0.25m
C.2m +0.25 = 3m +0.15
D.2 + 0.25m = 3 + 0.15m
Answer:
So i beiieve the answer is B
Step-by-step explanation:
Because if you thinl about the ride for A is $2 plus 25 cents so its 2 plus 25m thats per mile and b 3 dollars and 15 so u keep adding up until u get the same from both equations if u need further explanation let me know
Please help me find the value of z.
====================================================
Work Shown:
Plug (x,y) = (3,2) into the F(x,y) function
[tex]F(x,y) = 2x^2 + 4y^2\\\\F(3,2) = 2(3)^2 + 4(2)^2\\\\F(3,2) = 34\\\\[/tex]
Next, find the gradient and plug in (x,y) = (3,2)
[tex]F(x,y) = 2x^2 + 4y^2\\\\\\\nabla F(x,y) = \Big< \frac{dF}{dx}, \frac{dF}{dy}\Big>\\\\\\\nabla F(x,y) = \Big< 4x, 8y \Big>\\\\\\\nabla F(3,2) = \Big< 4*3, 8*2 \Big>\\\\\\\nabla F(3,2) = \Big< 12, 16 \Big>\\\\\\[/tex]
This means,
[tex]z = \nabla F(3,2) \cdot \left(\vec{x} - \big< 3, 2 \big>\right) + F(3,2)\\\\\\z = \nabla F(3,2) \cdot \left(\big< x,y \big> - \big< 3, 2 \big>\right) + F(3,2)\\\\\\z = \nabla F(3,2) \cdot \big< x-3,y-2 \big> + F(3,2)\\\\\\z = \big< 12,16 \big> \cdot \big< x-3,y-2 \big> + 34\\\\\\z = 12(x-3)+16(y-2) + 34\\\\\\z = 12x-36+16y-32 + 34\\\\\\z = 12x+16y-34\\\\\\[/tex]
As a way to help check, note how plugging (x,y) = (3,2) into the last equation for z leads to z = 34. This helps confirm that we have the correct equation because the point (3,2,34) must be on F(x,y) and also on z since the plane is tangent to the F(x,y) curve at this point.
Questions – Impulse and Momentum
A 6.00 N force acts for 5.00 seconds on a 1.50 kg mass. Find:
A) The impulse which acted upon the mass.
B) What change in momentum is produced?
The value of the impulse will be 30 Newton-second. And the value of the momentum will be 30 kg-m/s.
What are impulse and momentum?A strong and ignorant passion or drive to act is known as an impulse.
A traveling body's momentum is measured as the combination of its mass and velocity.
A 6.00 N force acts for 5.00 seconds on a 1.50 kg mass.
Then the impulse is given as
Impulse = Force x Time
Impulse = 6 x 5
Impulse = 30 N-sec
Then the value of the momentum will be
P = m x dv
We know
F = ma
6 = 1.5a
a = 4 m/s²
Then the velocity will be
dv = a x t
dv = 4 x 5
dv = 20 m/s
Then the momentum will be
P = 1.5 x 20
P = 30 kg-m/s
More about the impulse and momentum link is given below.
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find the slope of the line that passes through (7,7) and (3,2).
Answer:
-5/4
Step-by-step explanation:
to find the slope the equation is the secony - the first y over the second x- the first x so 2-7 is -5 and 3-7 is -4 so it would be -5/4
Joseph wants to buy a new smart TV. He has saved $40 and earns $15 per lawn of leaves he rakes. Which of the following equations can be used to determine the number of lawns Joseph needs to rake r, in order to buy the smart TV, which costs S dollars
Answer:
he rakes 3 lawns per day. he would have to work for 6.4 days to earn $45.
hope this helps!!!!!
A cell phone plan costs $150 to start. Then, there is a $50 charge each month. What is
the total cost (including start up fee and monthly charge) to use the cell phone plan
for 2 months?
$200
$300
$250
$350
Answer:
so Y= 150 + 50x
Step-by-step explanation:
so y = 150 + 50 x 2 will = 250
50 x 2 = 100
100 + 150Y
= 250
Answer:
$250 is the answer. 150 + 2 (50) = 250
9 % as a fraction in simplest form
Answer:
9/100
Step-by-step explanation:
9% = 9/100
Hope it helps
Answer:
9/100
Step-by-step explanation:
this is the simplest form
