You randomly select a card from a 52-card deck. Find the probability of selecting a 7 or an Ace.
Answer:
15.38%
Step-by-step explanation:
There are 4 7's in a deck of 52 cards.
There are 4 Aces in a deck of 52 cards.
4+4 = 8
8/52, or 15.38%
=================================================
Explanation:
There are four cards labeled "7", and four cards that are aces. We have 4+4 = 8 cards that we want to find. This is out of 52 total.
The probability we're after is 8/52 = (4*2)/(4*13) = 2/13
2/13 = 0.1538 = 15.38% approximately
2) r = 4/4 cm
Calculate the diameter of the circle
Answer:
radius is 4/4 cm meaning its 1 cm, and since diameter is twice the radius its 2cm.
Step-by-step explanation:
Write the slope-intercept inequality for the graph below. If necessary, use <=
fors or >= for 2.
6
(0, 1)
(3,-1)
5
How much is 331 ft in meters?
it would be 100.889, darling. hope this helps. <3
A baker has 10 pies. He will cut all the ples into pieces that are each of the whole ple.
How many pieces of pie will there be?
Answer:
I believe it to be 80 pieces if they are all cut into 8 pieces
Step-by-step explanation:
Answer:
I'm not sure how big each of the pieces of the pie are but I'm guessing 20 if each piece of pie is 1/2. Good luck on the question. Sorry I couldn't help you much.
Step-by-step explanation:
If the triangles below are similar, find the value of x. 42 х 11 22
9514 1404 393
Answer:
28
Step-by-step explanation:
Corresponding sides are proportional.
x/42 = 22/(22+11)
x = 42(2/3)
x = 28
help me plzzzzzzzzzz⏳zzzzzzzzzz
Answer:
X=41
Step-by-step explanation:
40x40 =1600
9x9=81
1600+81=1681
[tex] \sqrt{1681} [/tex]
=41
The hypotenuse of a right triangle measures 17 cm. One leg of the triangle measures 15 cm. Find the length of the other leg of the triangle.
Answer:
Step-by-step explanation:
8 cm
The expected value of a fair 6-sided die is 3.5.
Which of the following statements are true?
Choose all answers that apply:
А
3.5 is one of the possible outcomes of rolling a fair 6-sided die.
A fair 6-sided die is more likely to land on the number 4 than the number 6.
If you rolled a fair 6-sided die a large number of times, you should expect the average of the
numbers rolled to be about 3.5.
Answer: if you roll a fair 6 sided for a large number of times the average would be 3.5
Step-by-step explanation:
Khan
Which variable will you choose to eliminate? How? -3x -8y=-24 and
3x - 5y= 45
Answer:
Lets choose y
-8y=3x-24y=-3/8x+3Plug in
3x+15/8x-15=45 39/8x= 60 x=480/39Answer:
I'll choose 'x' variable first to eliminate because -
-3 (coefficient of 'x' in Eqn.1) & 3 (coefficient of 'x' in Eqn.2) are additive inverses of each other , so they can be easily eliminated by simply adding those equations. It can be also solved by using elimination method but you'll need to multiply -1 with either Eqn.1 or Eqn.2 because in elimination method , a variable can be eliminated only when their coefficients are numerically equal (along with their sign).Step-by-step explanation:
Eqn.1 → -3x - 8y = -24
Eqn.2 → 3x - 5y = 45
If we'll add both the equations , then '3x' would be getting cancelled first.
⇒ [tex](-3x - 8y) + (3x - 5y) = (-24) + (45)[/tex]
⇒ [tex]3x - 3x - 8y - 5y = 45 - 24[/tex]
⇒ [tex]-13y = 21[/tex]
⇒ [tex]y = \frac{-21}{13}[/tex]
Putting the value of y in eqn.2 ,
⇒ [tex]3x - 5(\frac{-21}{13}) = 45[/tex]
⇒ [tex]3x + \frac{105}{13} = 45[/tex]
⇒ [tex]3x = 45 - \frac{105}{13}[/tex]
⇒ [tex]3x = \frac{585 - 105}{13} = \frac{480}{13}[/tex]
⇒ [tex]x = \frac{480}{13 \times 3} = \frac{480}{39}[/tex]
Reducing the fraction gives ,
⇒ [tex]x = \frac{160}{13}[/tex]
Detailed results will be available only after the quiz has closed.
Question 8
5 pts
ve
Education
Dale conducted a survey of students in his classes to see the distribution of eye color.
The results are shown:
Eye color
Number
Blue
12
Brown
58
Green
2
Hazel
8
If the distribution of eye color in Dale's grade is similar to the distribution in his classes,
about how many of the 360 students in his grade would be expected to have brown
eyes?
0 54
Answer: 10%
Step-by-step explanation:
can i have brainliest
Josie makes fruit punch by mixing fruit juice and lemonade in the ratio 1:3
She needs to make 28 litres of punch for a party,
How much of each ingredient does she need?
Fruit juice = 7 litres Lemonade = 21 litres [4]
During the party Josie decides to make some more.
She has 3 litres of fruit juice left and plenty of lemonade,
How much extra punch can she make?
litres
To make the second batch of punch go further Josie
adds 3 more litres of lemonade,
What is the ratio of fruit juice to
lemonade in the second batch?
Ajogger goes 0.3 km east and then turns south. If the jogger finishes 0.5 km from the starting point, how far south did the jogger go?
Answer:
he went 0.2km south
Step-by-step explanation:
Answer:
He went 0.2km south.
Step-by-step explanation:
Your welcome!
ANSWER THIS ASAP NO FILE AT ATT!!
The answer would be A
Answer:
It would be A
Step-by-step explanation:
Once again the shape does not rotate or flip it stays the same but moves on the coordinate plane.
solve each of the following systems, if possible. indicate whether the system has a unique solution, infinitely many solutions, or no solution.
a. 2x + 10y = 9
3x + 15y = 13
b. 2x + 8y = 5
3x + 12y = 7.5
c. y = 3-x
d. 5x -8y = -1
-5/2 x + 4y = 1/2
Answer:
(a) No solution
(b) Infinitely many solution
(c) No solution
(d) Infinitely many solution
Step-by-step explanation:
Solving (a):
[tex]2x + 10y = 9[/tex] --- (1)
[tex]3x + 15y = 13[/tex] --- (2)
Multiply (1) by 1.5
1.5 * [[tex]2x + 10y = 9[/tex]]
[tex]3x + 15y = 13.5[/tex] --- (3)
Subtract 2 and 3
[tex]3x - 3x + 15y - 15y = 13.5 - 13[/tex]
[tex]0 = 0.5[/tex]
The above is false; Hence, the system has no solution
Solving (b):
[tex]2x + 8y = 5[/tex] --- (1)
[tex]3x + 12y = 7.5[/tex] -- (2)
Multiply 1 by 1.5
1.5 * [[tex]2x + 8y = 5[/tex]]
[tex]3x + 12y = 7.5[/tex]
Subtract 2 and 3
[tex]3x - 3x + 12y - 12y = 7.5 - 7.5[/tex]
[tex]0 = 0[/tex]
The above implies that the system has infinitely many solutions
Solving (c):
[tex]y = 3 - x[/tex]
A second equation is required to solve for (c)
Solving (d):
[tex]5x - 8y = -1[/tex] --- (1)
[tex]-\frac{5}{2}x+ 4y = \frac{1}{2}[/tex] --- (2)
Multiply (2) by 2
[tex]-5x + 8y = 1[/tex] --- (3)
Add 1 and 3
[tex]5x - 5x -8y + 8y = -1 + 1[/tex]
[tex]0 = 0[/tex]
The above implies that the system has infinitely many solutions
what is the answer for a+b-c?
Can anyone solve this for me??!
I need help can someone help
Answer:
yes i can but will have to get back to you in about half a hour just doing maths atm with the teacher
Step-by-step explanation:
The answer to the above question
Answer:
Step-by-step explanation:
Since our interval is given as it is, we are in QIII. That interval is equivalent to 270 degrees to 360 degrees, which is QIII. If we draw this right triangle in QIII and label it accordingly, the side adjacent to the reference angle is sqrt2 and the hypotenuse is 2. We know this because the cosine ratio is defined as the side adjacent to the reference angle over the hypotenuse of the right triangle. That means that we have to find the missing side in order to determine the other 2 main trig ratios. Using Pythagorean's Theorem, we have
[tex]2^2=\sqrt{2}^2+b^2[/tex] and
[tex]4=2+b^2[/tex] so
[tex]b=\sqrt{2}[/tex]. But since it is for a value that, in QIII is negative, it is [tex]-\sqrt{2}[/tex]
Now we can find the sin and tan of that reference angle. Sin is defined as the side opposite the reference angle over the hypotenuse, so
[tex]sin\theta=\frac{-\sqrt{2} }{2}[/tex] and tan, which is defined as side opposite the reference angle over the side adjacent to the reference angle, then
[tex]tan\theta=\frac{-\sqrt{2} }{\sqrt{2} }=-1[/tex]
Plzz help me well mark brainliest if correct!!....
Answer:
A) 3 cm
Step-by-step explanation:
since length x width = area, divide the area by the length. 30/10 = 3 (the width.)
Answer:
Option A
Step-by-step explanation:
Angle Relationships
A water slide is a straight ramp 25 m long that starts from the top of a tower. If the angle the slide forms with the top of the tower is 33°. determine the height of the tower. Round your answer to the nearest meter.
a. 30 m
b. 25 m
c. 24 m
d. 21 m
Pleases elect the best answer from the choices provided
Answer:
D. 21 m
Step-by-step explanation:
I calculated it logically
4. Find Percent Change:
Original Price $50
New Price $60
Answer:
20% change
Step-by-step explanation:
20 percent of 50 is 10. 50+10=60.
Brainliest please?
XxRoadToAcexX
Decompose 2 ⅜ Plz help
Answer:
19 / 8
Step-by-step explanation:
2 3/8 = 19/8
Find the trig ratio. Reduce to
lowest terms.
6
А
8
[?]
sin A
US
Answer:
[tex]\frac{3}{5}[/tex]
Step-by-step explanation:
GIVEN :-
Measure of side opposite to ∠A (Perpendicular) = 6 unitsMeasure of side adjacent to ∠A (Base) = 8 unitsTO FIND :-
sin AFACTS TO KNOW BEFORE SOLVING :-
[tex]Hypotenuse = \sqrt{(Base)^2 + (Perpendicular)^2}[/tex][tex]\sin A = \frac{Side \: opposite \: to \: A}{Hypotenuse}[/tex]PROCEDURE :-
Measure of perpendicular of triangle = 6 units
Measure base of triangle = 8 units
Measure of Hypotenuse = [tex]\sqrt{(6)^2 + (8)^2} = \sqrt{36 + 64} = \sqrt{100} = 10 \: units[/tex]
Side opposite to ∠A = Perpendicular of triangle = 6 units
∴ sin A = [tex]\frac{6}{10} = \frac{3}{5}[/tex]
If the regular price of an item is x dollars, what is the discount price in
dollars?
7.b
The price of the is x dollars is $
Answer:
x/regular price=y
1-y=discountx100
Step-by-step explanation:
I need the answer fast
Answer:
84
Step-by-step explanation:
Answer:
it would either be 2 or 26
Step-by-step explanation:
pls mark braainlieszt
With the spinner shown, the theoretical probability of landing on 2 is 0.25. Which number of spins would most likely result in a relative frequency that is closest to the theoretical probability?
just give the other kid brainiest
Step-by-step explanation:
Find the area of composite figure
Answer:
c
Step-by-step explanation:
help plsss :’)))))))
=======================================================
Explanation:
Start in the first row. The stem here is 4, which forms the tens digit of the value. The first leaf of this row is 3, so it's the units digit.
A tens digit of 4 and units digit of 3 forms the value 43. The value 43 is the smallest value of this data set. We call this the minimum.
The max is 93 for similar reasons, but we look at the opposite endpoint of the spectrum. Locate the bottom row (stem = 9) and note the last leaf here is 3. So that's how we get 93 here.
Now compute the range:
range = max - min
range = 93 - 43
range = 50, answer is choice C
How would you graph this function?
[tex]y=-2x^2-16x-30[/tex]
Answers Attached
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