Jill flipped a coin 40 times. The coin landed as heads 28 times and tails 12 times. Based on her results, which of the following is true?
A. If she flips the coin 20 more times, it will land as heads 14 times.
B. The next time she flips the coin it will land as heads.
C. The theoretical probability of a coin landing as heads is greater than her results.
D.The experimental probability of the coin landing as heads was 7 to 10.
Answer:
There are many conclusions we can come to for this!
70% of the flips were heads, and 30% are tails
28/40 was heads, and 12/40 were tails
There were more heads than tails
There were 14 more heads than tails
:)
Step-by-step explanation:
Pauline is making trail mix. She adds 4 cups of almonds, 3 cups of sunflower seeds, and 1 cup of raisins. What is the ratio of cups of raisins to cups of almonds?
Answer:
1/4
i think
this may not be the answer, but it appears correct.
Write a rule for the linear function in the table.
f(x) = 4 – x
f(x) = x + 4
f(x) = x – 4
f(x) = 4x
Answer: BRAINLY
f(x)=x-4 is the answer i believe
Answer :
The function is
Step-by-step explanation:
Given values in table :
x f(x)
3 -1
4 0
5 1
6 2
Here we see there is a difference of 4 in the values of x and f(x)
i.e. 3-(-1)=4
or 4-0=4
Similarly 5-1=4
6-2=4
So x-F(x)=4
Adding F(x) -4 both sides
x-F(x) +F(x) -4=4+F(x) -4
We have F(x)= x-4
Step-by-step explanation:
i cant find the answer
PLS HELP ASAP SEE SCREENSHOTS I NEED ANSWERS LIKE RN PLSS SRRYY:(
Answer:8= 2nd answer 9=3rd answer
Step-by-step explanation:
SOMEONE ANSWER THIS CORRECTLY READ IT CAREFULLY PLEASE!!!!!!! I NEED HELP WHAT DID SHE DO WRONG AND WRITE IT CORRECTLY PLEASE ANYONE ANSWER THIS CORRECTLY IM PRAYING SOMEONE HELP ME ASAPPPPPP!!!!!!!!!!!!!
What is the area or the figure below? THE FIRST TO ANSWER GETS MARKED AS BRAINLIEST
Answer:
168 in.²
Step-by-step explanation:
it is the correct answer
What is 3x+8=-10? Can someone help me?
Answer:
x=-6
Step-by-step explanation:
3x+8=-10
Isolate x and its coefficient by subtracting 8 from both sides
3x=-18
Divide by 3
x=-6
Answer:
X = -6
Step-by-step explanation:
3 times -6 = -18, and -18 + 8 = -10
What is the slope of line a?
========================================================
Explanation:
Start at the point (0,1). This is the y intercept, which is where the graph crosses the y axis.
Then move down 1 and over to the right 4 spaces. We arrive at (4,0) which is the x intercept.
The process of "down 1, over to the right 4" can be thought of like this
rise/run = -1/4
rise = -1
run = 4
A rise of -1 indicates we go down 1 unit
The run of 4 means we move to the right 4 units
So that's why slope = rise/run = -1/4
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Here's another approach using the slope formula:
m = (y2-y1)/(x2-x1)
m = (0-1)/(4-0)
m = -1/4
I used the two points (0,1) and (4,0) as (x1,y1) and (x2,y2) respectively. This formula basically says "subtract the y coordinates, subtract the x coordinates in the same order, then divide the differences y over x".
-------------------------------------------------------
Side note: The line moving downhill, as we read from left to right, indicates a negative slope.
find the missing length indicated
thank yall for helping!
Please help fast. 15 points
Answer:
3rd one? ldk
Step-by-step explanation:
Answer:
-12x+4
Step-by-step explanation:
First, you have to rearrange terms.
-6(-2/3+2x)
-6(2x-2/3)
Now you have to distribute.
-6(2x-2/3)
-12x+4
and that's how you get your answer.
I hope this helps. :)
(You can also put it as 4-12x.)
whats the answer to
-7y=7x+21
Answer:
y = -x - 3
x = -y - 3
Step-by-step explanation:
If solving for y,
-7y = 7x + 21
-y = -x + 3 (dividing everything by 7)
y = -x - 3
If solving for x,
-7y = 7x + 21
-y = -x + 3
x = -y - 3
Which lines have a slope of -2?
Answer:
Lines C and D
Step-by-step explanation:
Both lines C and D are negative, and they both have the same slope. in order to find the slope you use rise over run; in this case, you go down 2 over left 1. C and D are the only lines that use that slope; therefore, they are the answers.
Choose the formula for the volume of a rectangular box, V = lwh written in terms of w.
A. w=V/ lh
B. w=hl/V
C. w=V/lh
D. w=lV/h
Part B
Find the width w of a box with volume V = 120 cm3, l = 3 cm and h = 5 cm.
Answer:
A w=V/ lh
b) 8cm
Step-by-step explanation:
w=V/ lh
w= 120/(3×5)
w= 120/15 = 8cm
When you change y=Mx + b from m=1 to m=10? What happens
Answer:A linear equation in slope intercept form can be written y = mx + b. It ... To convert from slope intercept form y = mx + b to standard form Ax + By + C = 0, let m = A/B, collect all terms on the left side of the ... (2) - The slope of a line is -3/7 and the y- intercept is 10. ... All you have to do is isolate y on one side of the equal sign.
Step-by-step explanation:
What is 1 3/7 plus 2/28 (simplify it)
Answer:
3/2 or 1.5
Step-by-step explanation:
please like if this helped
Answer:
1/2
Step-by-step explanation:
Ms. Pickle is a salesperson at Fluffy Dogs. Each week she earns $560 plus a 6.5% of her sales. How much did she earn last week if her sales were $3800?
PLZ HELPPP!! Both answers plz
9514 1404 393
Answer:
ddStep-by-step explanation:
1. The cube root is found by dividing the exponents by 3.
[tex]\sqrt[3]{27a^{12}}=(3^3\cdot a^{12})^{\frac{1}{3}}=3^{\frac{3}{3}}\cdot a^{\frac{12}{3}}=\boxed{3a^4}\qquad\text{matches d}[/tex]
__
The factoring of the difference of cubes is ...
a³ -b³ = (a -b)(a² +ab +b²)
Here, we have a=r^9 and b=s^10, so the factorization is ...
[tex]r^{27}-s^{30}= (r^9-s^{10})(r^{9\cdot2}+r^9s^{10}+s^{10\cdot2})\\\\=\boxed{(r^9-s^{10})(r^{18}+r^9s^{10}+s^{20})} \qquad\text{matches d}[/tex]
Write an equation
1) y=3
2) y=3/4+3
3) y=3/4x+3
4) y=4
Answer:
It B
Step-by-step explanation:
This is because the y-intercept is 3 and it going down
Hope this Helped
Please help me! STU is an equilateral triangle. If ST is one less than twice x, SU is 37 less than five times x, and TU is 11 more than x, find x and the measure of each side.
Answer:
x = 12
ST = 23 units
SU = 23 units
TU = 23 units
Step-by-step explanation:
For an equilateral triangle, all the angles are equal. Also, all the sides are equal.
Hence given that the sides ST is one less than twice x, SU is 37 less than five times x, and TU is 11 more than x
ST = 2x - 1
SU = 5x - 37
TU = x + 11
Since ST = SU = TU
2x - 1 = 5x - 37
collect like terms
37 - 1 = 5x - 2x
36 = 3x
Divide both 3
36/3 = x
x = 12
Therefore
ST = 2x - 1 = 2(12) - 1 = 23 units
SU = 5x - 37 = 5(12) - 37 = 23 units
TU = x + 11 = 12 + 11 = 23 units
Tom, Jaime and LaDonna are playing hide-and-seek. Tom is hiding 15 yards south of Jaime, and LaDonna is hiding due west of Tom. If Jaime is 25 yards from LaDonna, how far apart are Tom and LaDonna.
Answer:
what are the answer choices
Step-by-step explanation:
Answer:
That's like 20 feet probably
Step-by-step explanation:
Okay so the distance between Tom and Jaime is the height of the triangle (South is directly down) (A=15 yards)
The distance between Tom and Ladonna is the base of the triangle (since Ladonna is west of Tom) (B is unknown)
The hypotenuse is the distance between Jaime and LaDonna (C=25 yards)
1. So 15^2 plus b^2 equals 25^2
2. 225 plus b^2 equals 625
3. Subtract 225 from both sides (b^2=400)
4. Find the square root of both sides.
5. B= 20 yards
What is the next fraction in this sequence? Simplify your answer.
5 /6,5/12, 5/24, 5/48...
Submit
Lillian works 7 hours each day for 5 days a week.
She earns £420 each week.
How much does she earn per hour?
Answer:$12 dollars and hour
Step-by-step explanation:
7 hours times 5 days a week equals 35 hours. 420/35 hours equals 12 dollars
Please help will mark Brainlist
Refer to the figure at the right. Write a proof
that shows AB || ED.
Answer:
We can see the two triangles ABC and EDC are similar and their sides are proportional.
4 to 8, 6 to 12, 5 to 10
You could say,
1. ABC ~ EDC -- SSS criterion
2. ∠A = ∠E -- CPCTC
3. AB || ED -- Alternate Interior Angles Converse
write and equation for the trend line shown
Answer:
y = [tex]-\frac{10}{3}[/tex]x + 70
or
y = 70 [tex]-\frac{10}{3}x[/tex]
(They're both the same equation, whichever one you prefer you can use!)
6. Allison wants to start saving for college. She got $250 in birthday money
and plans to save $50 a week from babysitting. Which equation could be
used to determine how many weeks it will take for her to save $1000? *
a = (1/5)
b = (6/-3)
Work out 4a + b
Answer:
-1.2
Step-by-step explanation:
In her proof, Ensley wrote the formula Va + b = c? Which of the following explains why her formula
is incorrect?
A. The sum of the square of a and the square of b should be equal to the square root of c.
B. The square root of the sum of a and b should be equal to the square root of c.
C.The sum of the square of a and the square of b should be equal to the square of c.
D.The sum of the square root of a and the square root of b should be equal to the square of c
Answer:
C. a^2 + b^2 = c^2
Step-by-step explanation:
Find the slope and the y-intercept of the graph of y+1=4/3x.
What is the slope and the y-intercept?
Answer:
Slope = 4/3x; y-intercept = -1
Step-by-step explanation:
y + 1 = 4/3x
You have to write this equation in slope-intercept form (solve for y) if you want to find the slope and y-intercept
y + 1 = 4/3x
Subtract one from both sides
y + 1 - 1 = 4/3x - 1
y = 4/3x - 1
Now that we have the equation, you can now find the slope and y-intercept
y = mx + b; m is the slope and b is the y-intercept
So for y = 4/3x - 1, the slope is 4/3x and the y-intercept is -1
helppp mee look at the picture
Answer:
x=20
Step-by-step explanation:
bc 25 divided by 10 is 2.5 so you just multiply 8 by 2.5
Answer: X= 20
If solving for x
Step-by-step explanation:
x/25= 8/10
1= reduce the fraction to x/25= 4/5
2= cross multiply 5x=100
3= divide both sides X=20
Hope this helps. pls mark me brainliest
HELP PLEASE !!!!!!!!!
Answer:
300 seconds
Step-by-step explanation:
Given,
Speed of Jenna = 2m/s
Distance she covered = 600 m
Therefore, Time taken by her
[tex] = \frac{distance}{speed} [/tex]
[tex] = \frac{600}{2} [/tex]
= 300 seconds (Ans)
