What is the slope for 1.(4,9) & (1,6)
2.(5,3) & (5,-9) 3.(2,1) & (8,9)
4.(14,-8) & (7,-6). 5.(4,-3) & (8,3)
Step-by-step explanation:
1.(4,9) & (1,6)
m=y²-y¹/x²-x¹
m=6-9/1-4
m=-3/-3
m= 1
2.(5,3) & (5,-9)
m=y²-y¹/x²-x¹
m=(-9)-3/5-5
m=-12/0
3.(2,1) & (8,9)
m=y²-y¹/x²-x¹
m=9-1/8-2
m=8/6
m= 4/3
4.(14,-8) & (7,-6)
m=y²-y¹/x²-x¹
m=(-6)-(-8)/7-14
m=2/-7
m= -2/7
5.(4,-3) & (8,-3)
m=y²-y¹/x²-x¹
m=(-3)-(-3)/8-4
m=0/4
m=0
6.(-11,1) & (-2,6)
m=y²-y¹/x²-x¹
m=6-1/(-2)-(-11)
m=5/9
A sample of 18 randomly selected women is obtainedand the blood platelet count of each subject is measured. The mean is 253.9 and the standard deviation is 63.6. What is the margin of error (round to the nearest tenth)?
Answer:
Margin of error = E = 40
Step-by-step explanation:
Assuming 99% confidence level
Given that x = 253.9
s.d = 63.6
n = 18
Degrees of freedom = df = n - 1 = 18 - 1 = 17
At 99% confidence level the t is, α = 1 - 99% = 1 - 0.99 = 0.01
α/2 = 0.01 / 2 = 0.005
t α/2,df = t,0.005 = = 2.680 (using student t table)
Margin of error = E = t α/2,df * (s.d/√n)
Margin of error = 2.680*63.6/√18
Margin of error = 2.680*63.6/4.242641
Margin of error = 2.680*14.99066265564303
Margin of error = 40.17
Margin of error = E = 40
This is a special cube, which has numbers from 1 to 6 marked on its six faces. (Each number is marked on exactly one face.) Also, the sum of each pair of opposite faces is the same
Answer:
This is a die used to play games. Well we generally use more than one, so we use dice. The addition of each pair of opposite sides always yields 7:
1 + 6 = 72 + 5 = 73 + 4 = 7Dice games are very popular and they can also help understand how math and probability work. As with all games, probability always favors the house, but the risk of loss is part of the entertainment.
Is this question complete, or is it missing some requirements?
Determine the pattern rule for the table and write it as an equation.
Answer:
The rule is: y = -10x+85
Step-by-step explanation:
The rule is given by:
[tex]y = mx+b[/tex]
Here m is the gradient and b is the y-intercept.
We have to take two pairs of input-output to find the rule
Let the two pairs be:
(x1,y1) = (1,75)
(x2,y2) = (2,65)
Slope is found using the formula:
[tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex]
Putting the values
[tex]m = \frac{65-75}{2-1}\\m = -10[/tex]
Putting the value of slope
[tex]y = -10x+b[/tex]
Putting a pair of input-output in the equation (1,75)
[tex]75 = -10(1) +b\\75 = -10+b\\b = 75+10\\b = 85[/tex]
Putting the value of b
[tex]y = -10x+85[/tex]
Hence,
The rule is: y = -10x+85
Tiana was going to sell all of her comic book collection to buy a video game. After selling half of them she changed her mind. She then bought nine more. How many did she start with if she now has 39?
Answer:
60
Step-by-step explanation:
60 divided by 2 equals 30 + 9
Another geometry problem
Answer:
70 degrees
Step-by-step explanation:
2x+15=4x-5
subtract 2x from both sides
15=2x-5
add 5 to both sides
2x=20
divide both sides by 2 to get x by itself
x=10
You now have to add the equations together and plug in the x
(2(10)+15) + (4(10)-5)
(20+15) + (40-5)
35+35= 70
70 degrees
Which inequality models this situation?
Answer:
last one
Step-by-step explanation:
Answer:
Step-by-step explanation:
D
750% as a decimal mixed number or fraction
Answer:
750% as a decimal is 7.5
15. Algebraically solve the inequality
6x+17> 5(2x+1)
+
Graph your solution on the number line below
-10
-3
0
10
Answer:
-3
Step-by-step explanation:
Wanda's Cafe offers two kinds of espresso: single-shot and double-shot. Yesterday afternoon, the cafe sold 75 espressos in all, 51 of which were single-shot. What percentage of the espressos were single-shot?
Answer:
68%
Step-by-step explanation:
51/75 × 100% = 68%
Find the slope of a line parallel to each given line.
17) y = 4x - 5
18) y = 2x + 3
19) 4x - 3y = -15
20) 5x+2y=6
Answer:
17) the parallel slope is 4x.
18) the parallel slope is 2x.
19)the parallel slope is -4/-3x.
because 4x-3y=-15
-4x -4x
- 3y=-4x-15
-3 -3 -3
y=-4/-3-5
20)the parallel slope is -5/2x
5x+2y=6
-5x -5x
2y=-5x+6
2 2 2
y=-5/2x + 3
Step-by-step explanation:
don´t forget to brainllest!:)
There are 8 squares and 6 triangles. What is the simplest ratio of triangles to total shapes?
Answer:
3:7
Step-by-step explanation:
total no. of shapes:
8+6=14shapes
ratio is;
triangle:total shapes
6:14=6/14
=3/7
ratio is 3:7
HELP THIS IS AN EMERGENCY I ONLY HAVE 5 MINUTES HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! COME GET UR POINTS FIRST ANSWER=BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The quotient of a number and 4, minus 11, is -8
Answer:
What do you need help with?
Step-by-step explanation:
Answer:
X/4 - 11
Step-by-step explanation:
Quotient is the answer of a division problem so x divided by 4 minus 11 is the equation.
Hope this helps. Pls give brainliest.
please help me, as soon as possible!!
HELPPPP MEEEEE PLEASEEEEEEE
help me please !!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
I believe it would be 3n^2 (last option)
Step-by-step explanation:
By definition;
monomial- one term
coefficient- the number in front of a variable
(in this case, without the squared power, it would look something along the lines of "3n", where the 3 is the coefficient and the "n" is the variable.)
sooooooo,
even without the "2nd degree" we can just use the system of elimination and cross out the answers that don't consist of one number, and that don't have a coefficient of 3.
I hope this answer was helpful, please let me know if you got it correct. :)
I will mark brainest if it is right
1. 8x + 16 = 6x - 12
x=
Answer:
x = − 14
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Hope this helps :)
Answer:
x= -14
Step-by-step explanation:
Isolate x to one side of the equation so subtract the 6x from 8x to get 2x
New equation
2x+16= -12
Now subtract 16 from both sides, so 16 minus 16 cancels out and then -12 - 16 equals -28
Newest equation
2x= -28
divide by 2 to isolate the x
So the answer is -14
x= -14
Hope this helps you!!!
How does the value of m affect the graph of the
equation?
please help SAP!!!
i will give brainliest!! :)
Answer:
M and N are similar but not congruent
Step-by-step explanation:
M and N look the same but aren´t the same width or height so there similar but not congruent.
Maria and Franco are mixing sports drinks for a track meet. Maria uses 23 cup of powdered mix for every 2 gallons of water. Franco uses 114 cups of powdered mix for every 5 gallons of water.
Answer:
Maria
Step-by-step explanation:
Find the ratio of powdered mix to water for each drink.
For Maria:
(2/3 cup) / (2 gallon)
= 1/3 cup per gallon
For Franco:
(1 1/4 cup) / (5 gallon)
= (5/4 cup) / (5 gallon)
= 1/4 cup per gallon
Since 1/3 is bigger than 1/4, Maria's sports drink is stronger.
Assignment
What is -3/4 + 2 3/4
3 1/2
3 3/4
2 1/2
2
Answer:
D) 2
Step-by-step explanation:
When you have [tex]2\frac{3}{4}[/tex] and you subtract [tex]\frac{3}{4}[/tex] from it, you result in 2.
the [tex]\frac{3}{4}[/tex] in the 2 and by itself cancel out.
#teamtrees #WAP (Water And Plant)
What is 1 & 1/8 divided by 2 & 1/4
A= 32/81
B= 2
C=1/2
D=3 & 1/2
Help pls 25 points
Answer:
0.5
C
Step-by-step explanation:
Reduce the expression, if possible, by cancelling the common factors.
Which factor is missing from the equation?
33+ 63 =
(11+9 )
Answer:
96
Step-by-step explanation:
33 plus 63 equals 96
Have a nice day
Will give branliest answer:)
What is the opposite of each number?
Drag the answer into the box to Match each number.
Answer:
0.24 → -0.24
1/4 → -1/4
0 → 0
-5 → 5
240 → -240
Step-by-step explanation:
Hope this helped! :)
5. What three consecutive integers have a sum of 21?
Solve for x . Help me
maggie spent half of the money in her savings account on a new computer if the computer was $345 how much was in her savings account
Answer:
172.5
Step-by-step explanation:
its 172.5 because 345÷2 equals 172.5 therefore she had 172.5 dollars in her savings
Fast food hamburgers have high amounts of cholesterol. Two McDonald’s Quarter Pounders and three Burger King Whoppers contain a total of 395 mg of cholesterol. Three Quarter Pounders and one Whopper contain a total of 288 mg of cholesterol. Determine the cholesterol content in each hamburger.
Answer:
McDonald’s Quarter Pounders = 67 mg of cholesterol
Burger King Whoppers = 87 of cholesterol
Step-by-step explanation:
McDonald’s Quarter Pounders = m
Burger King Whoppers = b
2m + 3b = 395
3m + 1b = 288
3m + b = 288
b = -3m + 288
2m + 3b = 395
2m + 3(-3m + 288) = 395
2m - 9m + 864 = 395
- 7m + 864 = 395
- 7m/7 = -469/7
-m = -67
-m/-1 = -67/-1
m = 67
2m + 3b = 395
2(67) + 3b = 395
134 + 3b = 395
3b = 395 - 134
3b = 261
3b/3 = 261/3
b = 87
Check: m = 67; b = 87
2m + 3b = 395
3m + 1b = 288
2m + 3b = 395
2(67) + 3(87) = 395
134 + 261 = 395
395 = 395
3m + 1b = 288
3(67) + 1(87) = 288
201 + 87 = 288
288 = 288
(Probs too late but welp :p)
helppppppppppppppppppppppp will give brainlyest
Answer:
Step-by-step explanation:
(C) ( - 10, 6 )
Marguerite sailed 4 hours on Saturday and 3 hours on Sunday. Each day, she sailed at a rate of 11 miles per hour. Which statements are true?
Answer:
Marguerite sailed 4 hours on Saturday and 3 hours on Sunday.
Step-by-step explanation:
Answer:
❌She sailed for 4 hours.
✅She sailed for 7 hours.
❌She sailed 44 miles in all.
✅ She sailed 77 miles in all.
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