Answer:
D
Step-by-step explanation:
one way to write a quadratic equation is using the y = (x-s) (x-r) where r and s are positive zeros. another way to solve this and think about it would be to plug in your points and equate both sides. example:(3,0) (8,0)0 = (3-8) (3-3)0 = 00 = (8-8) (8-3)0=0
8. What is the equation of the line that passes through the points (0,5) and (1,7)
a. y = 3x - 3
b. y = 2x + 5
y = 4x - 1
d. y = 1/2x + 5
Answer:
B. y = 2x + 5
Step-by-step explanation:
Slope intercept formula y=mx+b
Slope formula y1-y2/x1-x2
First, let's find slope since we are provided 2 pairs of points, we can simply plug in our numbers in the Slope formula (y1-y2/x1-x2)
5-7/0-1
-2/-1
2/1
=2
Slope (m) = 2
Now using slope let's find our y-intercept (b) to plugin in our slope intercept formula (y=mx+b) for this let's use point 0,5
y=2x+b
5=2(0)+b
5=b
Y-intercept (b) = 5
Now let's plug in the slope (m) and the y-intercept (b) into the slope-intercept formula (y=mx+b)
y=mx+b
y=2x+5
So therefore our answer is B
A die has 6 faces numbered 1 to 6.On a single roll of die,find the probability of not getting the number 6
Step-by-step explanation:
probability of not getting six=5/6
is your answer
help jekrjrifirnrifjrnrifn
Answer:
c
I hope it's the right answer
Two circles have a scale factor of 3:2. What is the ratio of the circumferences of these circles?
A. 12:26
B. 13:12
C. 9:4
D. 3:2
Answer:
3:2
Step-by-step explanation:
The circumference is a distance. The ratio of the distance is the same as the scale factor. The ratio of the areas is the ratio of the scale factor squared and the volume is the scale factor cubed.
HELPPP!!!!! Plzzzz!!
Given:
Cards labelled 1, 3, 5, 6, 8 and 9.
A card is drawn and not replaced. Then a second card is drawn at random.
To find:
The probability of drawing 2 even numbers.
Solution:
We have,
Even number cards = 6, 8
Odd numbers cards = 1, 3, 5, 9
Total cards = 1, 3, 5, 6, 8 and 9
Number of even cards = 2
Number of total cards = 6
So, the probability of getting an even card in first draw is:
[tex]P_1=\dfrac{\text{Number of even cards}}{\text{Number of total cards}}[/tex]
[tex]P_1=\dfrac{2}{6}[/tex]
[tex]P_1=\dfrac{1}{3}[/tex]
Now,
Number of remaining even cards = 1
Number of remaining cards = 5
So, the probability of getting an even card in second draw is:
[tex]P_2=\dfrac{\text{Number of remaining even cards}}{\text{Number of remaining total cards}}[/tex]
[tex]P_2=\dfrac{1}{5}[/tex]
The probability of drawing 2 even numbers is:
[tex]P=P_1\times P_2[/tex]
[tex]P=\dfrac{1}{3}\times \dfrac{1}{5}[/tex]
[tex]P=\dfrac{1}{15}[/tex]
Therefore, the probability of drawing 2 even numbers is [tex]\dfrac{1}{15}[/tex]. Hence, the correct option is (b).
12% of 4 meters ( in cm)
Answer:
48 cm
Step-by-step explanation:
percent x meters x centimeters in meters
.12 x 4 x 100
Answer:
48 cm
Step-by-step explanation:
12/100 * 4 = 48 meters
1 meter = 100 cm
0.48 m = x Cross Multiply
1*x = 0.48 * 100
x = 48 cm
Customers can pick their own cherries at cherry hill. they pay $4 to enter the farm and $3.50 per pound for the cherries they pick. write an equation to model the total cost, y, for x pounds of cherries
Answer:
The Equation would be $4 + $3.50x = y
Step-by-step explanation:
What is the solution to the system of equation?
Answer:
x = 0
y = 3
Step-by-step explanation:
-x - 2y = - 6
0 - 2(3) = -6
6 = 6
-3x + 2y = 6
-3(0) + 2(3) = 6
0 + 6 = 6
Use the formula w = to find the value of the missing variable.
T
radians. w
radian per min
Answer:
Step-by-step explanation:
which number is represented by the number line
Answer: B
Step-by-step explanation: The number line has tally marks up to 3, so 3 has to be divided by something, meaning A and C do not work. There are 9 total tally marks circled, so the equation equals 9, leaving B as the only possible answer. Also, there are three tally marks per whole number, so each tally is 1/3, which is equal to 2/6, further proving it is B.
HELP ASAP PLEASEE
I WILL MARK BRAINLIST
At the dress shop, Sherry is building buttons into packages. She has reached the 867 th button and is packing the 34 th package when she is asked to take her lunch break . She needs to note the number of buttons that are in the package so when she returned she will continue she will continue . How many buttons does package 34 contain? dont send in file explain plz
Answer:
9 buttons in package 34
Step-by-step explanation:
There are 26 buttons in each box.
26 * 33 = 858 for the first 33 full boxes
867 - 858 = 9 buttons in the 34th box
B = buttons per box
33*B<867 --> B < 26.27
34*B>867 --> B > 25.5
So 25.5 < B < 26.27, therefore B = 26 buttons per box
Luis's bowling scores were 195, 194, 191, 190, 238, and 192. Which measure (median, mean, mode or range) BEST describes Luis's bowling score? EXPLAIN your answer.
Step-by-step explanation:
The given data is :
195, 194, 191, 190, 238, and 192
Mean = (sum of observations)/(total no. of observations)
[tex]\text{Mean}=\dfrac{195+194+191+190+238+192}{6}\\\\=200[/tex]
So, the mean is the best measure. Also, w can find median as follows.
arranging in order : 190,191,192, 194, 195,238
Here, n = 6
[tex]\text{Median}=\dfrac{\dfrac{n}{2}^{th}+(\dfrac{n}{2}+1)^{th}}{2}\\\\\text{Median}=\dfrac{\dfrac{6}{2}^{th}+(\dfrac{6}{2}+1)^{th}}{2}\\\\=\dfrac{3^{th}+4^{th}}{2}\\\\=\dfrac{192+194}{2}\\\\=193[/tex]
Hence, this is the required solution
The class average on a math test was an 82 with a standard deviation of 5. If the
data is normally distributed, which statements are true?
1. A student scoring a 74 would have a z -score of -1.6.
2. About 68% of the students scored below an 87.
3. A z-score of 2.6 would be a test
score of 95.
4. About 16% of the class scored a 77 or below.
45. About 25% of the class scored above a 92.
Answer:
Option 3 and 4.
Step-by-step explanation:
The z score shows by how many standard deviations the raw score is above or below the mean. The z score is given by:
[tex]z=\frac{x-\mu}{\sigma} \\\\where\ x=raw\ score,\mu=mean, \ \sigma=standard\ deviation[/tex]
Given that mean (μ) = 82, standard deviation (σ) = 5
1) For x = 74:
[tex]z=\frac{x-\mu}{\sigma} \\\\z=\frac{74-82}{5} =-1.6[/tex]
Option 1 is incorrect
2) For x < 87
[tex]z=\frac{x-\mu}{\sigma} \\\\z=\frac{87-82}{5} =1[/tex]
From the normal distribution table, P(x < 87) = P(z < 1) = 0.8413 = 84.13%
Option 2 is incorrect
3) For x = 95:
[tex]z=\frac{x-\mu}{\sigma} \\\\z=\frac{95-82}{5} =2.6[/tex]
Option 3 is correct
4) For x < 77
[tex]z=\frac{x-\mu}{\sigma} \\\\z=\frac{77-82}{5} =-1[/tex]
From the normal distribution table, P(x < 77) = P(z < -1) = 0.16 = 16%
Option 4 is correct
5) For x > 92
[tex]z=\frac{x-\mu}{\sigma} \\\\z=\frac{92-82}{5} =2[/tex]
From the normal distribution table, P(x > 92) = P(z > 2) = 1 - P(z < -2) = 1 - 0.9772 = 0.0228 = 2.28%
Option 5 is incorrect
3
A rectangle is 20 cm long and 8 cm wide find the perimeter
(1 Point)
56 cm
28 cm
110 cm
52 cm
what does the challenges do?
Answer:
question that must be answered in a given time for a lot of points
Answer:
so if you do them the percentages will increase and you will get points so gou can ask questions i did one and spent all 100 just for someone to translate im s-t-u-p-i-d and then i commented no youre not
Layla and Bobby are making potholders with their grandmother. They have a total of 1.5 yards of fabric they can use, and it takes one-eighth of a yard to make each potholder. What is the maximum number of potholders they can make?
Please help!! I will brainlest your right answer please!!! I am stuck very badly!! Please
Answer:
See below.
Step-by-step explanation:
2a. E = 8.25h + 1.2n
2b. E = 8.25 * 3.5 + 1.2 * 10 = $40.88
2c. 8.25 * 8 + 1.2n = 91.2
66 + 1.2n = 91.2
1.2n = 25.2
n = 21 magazines.
Answer:
In picture
Step-by-step explanation:
Please give brainliest if it helped, thanks!
Darryl was shopping for a new camera. He found one with an original price of
$125.00 and is marked 45% off. Sales tax for the item is 5.2%. What is the final
price of the camera, including tax?
Answer:
$72.33
Step-by-step explanation:
125 * 0.45 = 56.25
125 - 56.25 = 68.75 (marked off price)
68.75 * 1.052 = 72.33 (add sales taxes and round off)
Final price $ 72.33
If 1 kg of milk had 0.264 kg of fat, then find the amount fat in 12.5 kg of milk.
1 kg--> 0.264 kg fat
:. 12.5 kg--> (0.264*12.5) 3.3 kg fat
Mark me brainliesttt :))
may I please have help from anyone thank you so much !
HURRYYYY. which linear inequality is represented by the graph?
Answer:
C
Step-by-step explanation:
i did this in 6th grade too man i gotchu
A grocery store owner budgets $5,000 to buy and maintain a booth for 300 days to give out samples of food. If she bought the booth for $1,400, how much money, in dollars, can she spend on food each day for samples and stay within budget? Write an inequality that represents this situation and indicate what the solution to the inequality will look like.
Answer:
x ≤ $12 a day
Step-by-step explanation:
5000-1400=3600
3600/300=12
A 7-ounce jar of instant coffee costs $11.78. Find the cost per ounce. Round to the nearest cent.
Answer:
1.68 per ounce
Step-by-step explanation:
11.78÷7=1.68285714286
1.68285714286 rounded to the nearest cent =1.68
Pls help me on this lol
Answer:
I think that this will help you out.
Step-by-step explanation:
Help please, I swear I can't even try on this. I'm just gonna die if I try.
Answer:
1) word form
three million,two hundred and ninety eight thousand and seventy six
expanded form
5000000+3000+87
2)5,003,087
3)64,000,239
Solving right triangles
Answer:
i can see the actual question, what is it?
In right triangles one of the angles will always be 90 degrees.
So if you had a right triangle with one right angle, a number, and a number, they always have to add up to 90 degrees as well, because a triangle is always 180 degrees
so
side a = 90side b = xside c = yx + y = 90x + y + 90 = 180What is the nth term rule of the linear sequence below?
22,18,14,10,6.....
Answer:
it goes down by 4 every time
8.
Find the slope of the in line containing the ordered pairs. (7 marks)
a. A(2,-5), B(-2,6)
Answer:
= -11/4
Step-by-step explanation:
To find the slope given two points
m = ( y2-y1)/(x2-x1)
= (6 - -5)/(-2 -2)
= (6+5)/(-2-2)
= 11/-4
= -11/4
Answer:
-2.75 (-2 3/4)
Step-by-step explanation:
you can do rise of a run whenever you have two points so you have 6-(-5)/-2-2 and solve so -11/4 and that equals -2.75.
What is the product of (3a)(-6b)(-4)?
