Answer: The probability of Sarah picking a blue marble on 2 consecutive draws without replacement = 15.8%
Step-by-step explanation:
Given: Sarah has a bag of 100 marbles. 40 are blue, 40 are green, and 20 are purple.
The probability of Sarah picking a blue marble on 2 consecutive draws without replacement = [tex]\dfrac{40}{100}\times\dfrac{39}{99}=0.157575757576\approx15.8\%[/tex]
Hence, the probability of Sarah picking a blue marble on 2 consecutive draws without replacement = 15.8%
When the temperature stays the same, the volume of a gas is inversely proportional to the pressure
of the gas. If a balloon is filled with 45 cubic inches of a gas at a pressure of 14 pounds per square
inch, find the new pressure of the gas if the volume is decreased to 15 cubic inches.
15
A) 28 pounds per square inch
B) pounds per square inch
14
D) 39 pounds per square inch
C) 42 pounds per square inch
Help me please this is homework
( d is 5cm2 )
Answer:
A = 12 cm^2
Step-by-step explanation:
A = h*b/2
A = (6cm)(4cm/2)
A = 12 cm^2
Leave a like and mark brainliest if this helped
HEY
QUICK Question? How AM I suppose to solve using the Pythagoras's theorem
Step-by-step explanation:
heyy
so a Pythagoras theorem always works on a right angle triangle only
the longest side that is the side not involved in the right angle triangle is called the hypotenuse
the other two involved sides are called legs
so we say one leg is a
other leg is b
and hypotenuse is c
the formula is a²+b²=c²
so if a= 4cm
b=3cm
then find c
so a²+b²=c²
so 16+9=25
so square root of 25 is 5²
so c is equal to 5 cm
also if you want to check if the triangle is a right angled triangle then we should perform this theorem in which all three values will be given but you just need to solve and check if it satisfies
thanks for asking
pls gimme brainliest I need it
If P= (-3,5) and Q= (1,9), find the equation of the circle that has segment PQ as a diameter
Answer:
The equation of the circle is;
(x - [(-1))² + (y - [7])² = 8
Step-by-step explanation:
The given coordinates of the points P and Q are;
P = (-3, 5) and Q = (1, 9)
To find the equation of the circle that has segment PQ as a diameter
The equation of a circle is (x - h)² + (y - k)² = r²
Where;
(h, k) = The coordinates of the center of the circle
r = The radius of the circle
Given that segment PQ is the diameter of the circle, we have;
The center of the circle, O = The midpoint of PQ
The coordinates of the midpoint of segment PQ, O = ((-3 + 1)/2, (5 + 9)/2) = (-1, 7)
∴ The coordinates of the center of the circle, O = The coordinates of the midpoint of segment PQ = (-1, 7)
Therefore;
h = -1, k = 7
From PQ = The diameter of the required circle, we also have;
The length of PQ = 2 × (The radius of the circle) = 2 × r
The length of segment PQ = √((1 - (-3))² + (9 - 5)²) = √32 = 4·√2
Therefore;
The length of PQ = 4·√2 = 2 × r
r = (4·√2)/2 = 2·√2
r = 2·√2
r² = (2·√2)² = 8
r² = 8
The equation of the circle is therefore;
(x - h)² + (y - k)² = r²
(x - (-1))² + (y - 7)² = 8.
Ayush buys 2 travel mugs that each have an original price of 19.80. He uses a coupon for 15% off. How much does Ayush pay for 2 travel mugs?
A. 2.97
B. 5.94
C. 16.83
D. 33.66 please help
Which list shows all the factors of 48? A. 1, 2, 4, 6, 8, 12, 24, 48 B. 1, 2, 3, 4, 6, 8, 9, 12, 16, 24, 48 C. 1, 2, 3, 4, 6, 8, 12, 16, 24, 48 D. 1, 2, 3, 4, 6, 8, 9, 12, 16, 24, 48
Answer:
C. 1, 2, 3, 4, 6, 8, 12, 16, 24, 48
I need help again.Here is the question, Distance = Rate x Time What was my rate of speed if it took me 3.5 hours to travel 210 miles?
Answer:
60
Step-by-step explanation:
210÷3.5=60
3.5x60=210
Hope this helps!
: )
The rectangular prism shown below has a length of 3.0 cm, a width of 2.2 cm, and a height of 7.5 cm. What is the surface area, in square centimeters?
Step-by-step explanation:
answer is 91.2 square centimeters
Question 2 of 10
For which sample size (n) and sample proportion () can a normal curve be
used to approximate the sampling distribution?
A. n = 65; p = 0.9
O B. n = 35; p = 0.9
C. n = 35; p = 0.8
O D. n = 65; 6 = 0.8
Answer:
n = 65; p = 0.8
Step-by-step explanation:
The sample size (n) and sample proportion () can a normal curve be
used to approximate the sampling distribution is n = 65, p = 0.8.
The correct option is D.
According to the Central Limit Theorem, the shape of sample distribution of sample proportions with a population proportion, 'p' is normal
If n·p ≥ 10 and n·(1 - p) ≥ 10.
n = 65, p = 0.8
∴ n·p = 65 x 0.8 = 52 > 10
n·(1 - p) = 65 × (1 - 0.8) = 13 > 10
For n = 90, p = 0.9, n·(1 - p) = 18 > 10, a normal distribution can be used to approximate the sampling distribution.
Learn more about Normal Distribution here:
https://brainly.com/question/23509780
#SPJ7
Select ALL that have the same value as 60% of 94. 0.06 x 94 0.06 x 94 0.6 x 94 0.6 x 94 60/100 x 94 60/100 x 94 60 x 94
Answer:
0.6 x 94, 60/100 x 94
Step-by-step explanation:
0.6 = 60% of 1.
60/100 also = 60% of 1
Evaluate the expression
9
−
z
9−z9, minus, z when
z
=
4
z=
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: 5
Explanation:
9-4 = 5
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
what is calculating the area of a triangle
Answer:
bh/2
Step-by-step explanation:
So first, you have to multiply the base times height and you get a value. Then, you divide the value by 2. For example, a triangle that has a base of 3 and height of 4, you would multiply 4x3 which is 12 and then divide by 2 which is 6. Hope this helps :)
Please please help help this is for the brainies y’all are amazing thank you
Answer:
(2, 5)
Step-by-step explanation:
When reflected across the x-axis the y value is the opposite.
Answer:
(1,-9)
Step-by-step explanation:
Graph the line on the coordinate plane provided:
*** (don't forget to SHOW any neccesary WORK!)***
y = -31 - 2
Picture is attached
Answer:
30.25 pi
Step-by-step explanation:
A circumference is pi times diameter, so the radius would be 5.5 inches. The formula for the area is pi r squared so just plug in 5.5 as the r.
Whoever answers correctly gets brainliest.
Answer:
5a + a + 4a = 10 a
Option A) 4a
I need help solving this central angle and trying to find the name and what type of arc it is
Answer:
arc PSQ is the name
I believe it would just be called a semi circle.
Major arcs are > 180°
Minor arcs < 180°
Exactly 180°, I'm not sure
Simplify: 6!*5!/4!*3!
5.5
600
55
60
Answer:
The answer to ur question is 600
help me with this please
AMY RAN 20 MILES MORE THAN JIMMY LAST WEEK, AMY
RAN 32 MILES. HOW MANY MILES DID JIMMY RUN?
Algebra math show your work
Answer:
Jimmy ran 12 miles last week.
Step-by-step explanation:
32-20=12
In Example 1, why is 9 a solution of x>5?
Answer:
Look below
Step-by-step explanation:
9 would be a solution of the inequality x>5 because x can represent any number, but because there is a > between x and 5, that means that whatever number x represents is greater than 5, and because 9 is greater than 5, it is a solution to the inequality.
Hope this helps :)
Before the coffee shop opens. the employees bake 40 cookies which is 25 less than the number of donuts they make. Does the equation "x/25=40" describe the situation? if not write an equation that does explain what the variable represents
Answer:
40= d-25
Step-by-step explanation:
d is donut
hope it helps!!!
How can you use mental math to multiply numbers by 10?
Answer:
add a zero at the end of the number. 5x10=50. 60x10=600. 700x10=7000 etc.
Step-by-step explanation:
Answer:
Move the decimal point one space to the right
Step-by-step explanation:
Ex:
12*10=120 12=12.0 move the decimal one space to the right=120
You can also just add 0 if there isn't a decimal point
13.5*10=135 move the decimal one space to the right
hope this helps :)
what in the world does XxY mean?
Answer:Probably X multiplied by Y
Step-by-step explanation:
Which letter has two lines of symmetry? Y S M X
plzz help due tomorrow
Answer:
X
Step-by-step explanation:
one is going vertical and the the other is horizontal
What is the value of X?
Intersecting Chords (Lengths)
Answer:
x = 4
Step-by-step explanation:
(8)(7) = 14x
14x = 56
x = 4
(One step equations) use inverse operations to isolate the variable. 18=-3x
Answer:
6
Step-by-step explanation:
divide by 3 on both sides
convert
1. 15 Ib = ______ oz
2. 3 T = _______ Ib
3. 320 oz = _______ Ib
4. 23 Ib =_______ oz
5. 6 T = ______ Ib
6. 144 oz = ________ Ib
7. 15 T = ________ Ib
8. 352 oz = _____ Ib
9. 18 Ib =_______ oz
pls pls you will save me
Answer:
1. 240 oz
2. 6000lb
3. 20 lb
4. 368 oz
5. 12000 lb
6. 9 lb
7. 30000 lb
8. 22
9. 288
Step-by-step explanation:
Answer:
1. 240
2. 6613.87
3. 20
4. 368
5. 13227.7
6. 9
7. 33069.3
8. 22
9. 288
Step-by-step explanation:
Which of the following sets of measurements CANNOT represent the three side lengths of a triangle? A 3 cm, 3 cm, 3 cm B 3 cm. 4 cm, 5 cm C 3 cm, 5 cm, 7 cm D 3 cm, 6 cm. 9 cm
Answer:
D. 3 cm, 6 cm. 9 cmStep-by-step explanation:
As here,
3 cm + 6 cm = 9cm. = 9cm
And as we know,
According to Triangle Inequality Property,
Measurement of any two sides of a triangle is always greater than the third side.
But here,
Sum of two sides is same as the third side,
So,
Option D is the required answer.
complete the factoring , if needed solve the polynomial any quality using a sign chart (x+3)(x^2-8x+15)<0
Answer:
[tex](x + 3)(x - 5)(x-3)<0[/tex]
Step-by-step explanation:
Given
[tex](x + 3)(x^2 - 8x + 15)<0[/tex]
Required
Complete the factoring
[tex](x + 3)(x^2 - 8x + 15)<0[/tex]
Expand
[tex](x + 3)(x^2 - 3x - 5x+ 15)<0[/tex]
Factorize:
[tex](x + 3)(x(x - 3)-5(x-3))<0[/tex]
Factor out x - 3
[tex](x + 3)(x - 5)(x-3)<0[/tex]
The expression has been completely factored
