PLEASE HELP. WILL GIVE BRAINLIEST AND 5.0 STAR RATING
Solve the quadratic equation numerically (using tables of x- and y- values). x squared + 5 x + 6 = 0 a. x = -3 or x = -2 c. x = -3 or x = -3
Answer:
22
Step-by-step explanation:
I did it on math class
Answer:
2 solutions: -2 and -3
Step-by-step explanation:
x² + 5x + 6 has the following factors: (x+3)(x+2) = 0
x+3 = 0; one solution is -3
x+2 = 0; second solution is -2
Kardal did a study to determine the correlation between men’s heights, x, and their shoe sizes, y, and found the following data:
(60, 8.5), (65, 10), (66, 12), (68, 11.5), (63, 9.5), (72, 12.5), (62, 8.5), (69, 12.5), (70, 11.5)
Kardal used the line of best fit to predict that a man 80 inches tall would wear about a size 16 shoe. What can be concluded about this prediction? Check all that apply.
The prediction is reasonable.
The prediction is an interpolation.
No data is given in the scatterplot for a height of 80 inches, but a shoe size can still be predicted.
A prediction cannot be made for a man who is 80 inches tall.
A man who is 80 inches tall will likely wear a size 12.5 shoe.
Answer:
first and third option:)
Step-by-step explanation:
Kardinal did a study to determine the correlation between men’s heights, x, and their shoe sizes y, the conclusion about this prediction is mathematically given as The prediction is reasonable, and No data is given in the scatterplot for a height of 80 inches, but a shoe size can still be predicted. Option A ,C.
What can be concluded about this prediction?Generally, the equation for the equation of the line is mathematically given as
y=0.377x-14.214
Where the value of R^2 =0.7784 and x=80
y=0.377x-14.214
Hence
y=0.377(80)-14.214
y=16
In conclusion, Although no data is provided in the scatterplot for a height of 80 inches, a shoe size may still be estimated.
Read more about scatterplot
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Please help me with this question!!!!!
Answer:
x-axis is for the independent variable
Step-by-step explanation:
What is the value of x?
Which of the following expressions are equal to 7? Which are equal to - 7? Explain your thinking
-|-7|, |-7|, |7|, |-(-7)|, -|7|
Answer:
|-7|, = 7
|7|, = 7
|-(-7)|, = 7
Step-by-step explanation:
-|-7|, = -7
|-7|, = 7
|7|, = 7
|-(-7)|, = 7
-|7| = -7
Help me on this please show work
Answer: √7 feet
Step-by-step explanation:
Hypotenuse(h)=4ft
Base(b)=3ft
Now,Using pyhagoras theorem,
h²=p²+b²
4²=p²+3²
16-9=p²
p=√7feet
Hence, the remaining side is √7feet
Are the expressions equivalent? 10(x + 2); 10x + 5
Answer: yes, indeed it is i forgot how it is but it is
Hugo's bill for dinner at a restaurant was $16. He left a 15% tip. What was the amount of
the tip?
Answer:
you will multiple 16 from 15 and you will have 2.4
how many months are there in 15 years
Answer:
180 months
Step-by-step explanation:
have a good day
This bc it’s really really really hard and I can’t figure it out
Answer:
-4/5
Step-by-step explanation:
3/5+(-7/5)
-4/5
SOMEONE HELP PLEASEEE IM CRYINGGGFG
what is 5 1/3 divided by 1 1/6
Answer:
32/7 or 4 4/7
Step-by-step explanation:
I used mathaway. JOKING!
Convert the fractions into mixed numbers.
So instead of 5 1/3 and 1 1/6
you will have 16/3 and 7/6
Apply the fraction rule
a/b ÷ c/d = a/b × c/d
= 16/1 x 2/7
then:
16 x 2
1 x 7
= 32/7
proper fraction: 4 4/7
PLS HELP IMMEDIATELY PLEASE
Answer:
what we have to do here
please tell us .
then i will help you
you can use this formula
then it might help you
2. the sum of 10 and a number n
Answer:
Not full question though
10+n is the answer according to your question
Answer:
10+n
Step-by-step explanation:
Logic is the explanation
What is the prime factorization of 18?
Answer:
2 x 3 x 3
Step-by-step explanation:
Prime Factorization is finding which prime numbers multiply together to make the original number.
Prime numbers are whole numbers greater than 1 that cannot be made by multiplying other whole numbers: 2, 3, 5, 7, 11, 13, 17, 19 ... etc.
Factors are the numbers you multiply together to get another number.
To find the prime factors of 18:
Start with dividing the number by the first prime number, 2.
So can 18 be divided by 2? Yes: 18 ÷ 2 = 9 ⇒ So 2 is a factor.
However, 9 is not prime number. Can 9 be divided by 2 and give us a whole number? No, as 9 ÷ 2 = 4.5 and 4.5 is not a whole number.
So let's try dividing 9 by the next prime number, 3: 9 ÷ 3 = 3.
We can now stop as we divided by the prime number 3 AND the result is a prime number.
Therefore, the prime factorization of 18 = 2 x 3 x 3
As two of the factors are the same (3) , we can also write this using exponents: 18 = 2 x 3²
Anson collected 720 seashells. Then he gave 209 seashells to
Jackson and 376 to Ethan. What percent of his original
seashells did Anson have left?
Answer:
18.75%
Step-by-step explanation:
720 - (209+376) =
720 - 585 = 135
135/720 = 0.1875 --> 18.75%
At a sale this week, a sofa is being sold for $416. This is a 35% discount from the original price.
What is the original price?
Х
?
....................
Answer:
complimentary x=5
Step-by-step explanation:
90degrees - 65degrees= 254degrees
25/5=5
x=5
How can these models be used to find the sum 2.42 + 1.9?
Enter your answers in the boxes.
The models show a total of 3 wholes,
tenths, and
hundredths. After regrouping 10 tenths into 1 whole, there are
wholes,
tenths, and
hundredths. Therefore, the sum of the numbers is
. pls hurry 100 points
Answer:
4 wholes, 3 tenths and 2 hundredthsor
4.32Step-by-step explanation:
According to the model we have:
2.42 = 2 wholes, 4 tenths and 2 hundredths1.9 = 1 whole and 9 tenthsSum up:
2 + 1 = 3 wholes4 + 9 = 13 tenths = 1 whole and 3 tenths2 hundredthsRegroup the wholes to get:
3 + 1 = 4 wholes, 3 tenths and 2 hundredthsIn decimal form it is:
4.322(x+11) = -26 show all work pls
Answer:
x = -24
Step-by-step explanation:
First, distribute 2 to all terms within the parenthesis:
2(x + 11) =
2 * x = 2x
2 * 11 = 22
2x + 22 = -26
Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. PEMDAS is the order of operations, and stands for:
Parenthesis
Exponents (& Roots)
Multiplications
Divisions
Additions
Subtractions
~
First, subtract 22 from both sides of the equation:
2x + 22 (-22) = -26 (-22)
2x = -26 - 22
2x = -48
Next, divide 2 from both sides of the equation:
(2x)/2 = (-48)/2
x = -48/2
x = -24
x = -24 is your answer.
~
39. Why are -2a and 18a like terms?
Answer:
they each share the same variable which is raised to the same exponent, 1
Step-by-step explanation:
A ball is dropped from a height of 500 m the table shows the height of each bounce write a rule to represent the height of the ball after each bounce how high does the ball bounce of the 6th bounce
The rule that represents the height of the ball after each bounce is;
H(n) = 400(0.8)^(n - 1)
Geometric Sequence Progression
From online sources, we have that;
After first bounce, height = 400 m
After 2nd bounce, height = 320 m
After 3rd bounce, height = 256 m
Formula for the nth term of a geometric sequence is;
T_n = ar^(n - 1)
First term is 400m
Since second term is 320, then common ratio is;
r = 320/400
r = 0.8
Thus, the 6th bounce which is the 6th term will be;
T_6 = 400 * 0.8^(6 - 1)
T_6 = 131 m
Read more about geometric sequence at; https://brainly.com/question/21688964
What is the solution set of 4x=yand 2x - y=0?
OA. {(0.5, -0.5), (2, -8)}
OB. {(0, 0), (2,8)}
OC. {(1.5, 2), (8, 2)}
D. {(-1.5,-2), (2,8)}
Answer:
[tex]the \: answer \: is \: b \\ 4x = y \\ 2 {x}^{2} - y = 0 \\ 2 {x}^{2} - 4x = 0 \\ 2x(x - 2) = 0 \\ x = 0 \: and \: x = 2 \\ y = 0 \: and \: y = 8[/tex]
Subtract the equations.
5x + 4y = 25
(5x +2y = 3)
O A. -10x = 28
В. бу= 28
C. 2y = 22
D. 10x = 28
Answer:
it's C
Step-by-step explanation:
2y=22............
A 5 person sports team has an average 40 yard dash time of 5. 7 seconds. When a 6th player is added to the team, the new mean is 5. 5 seconds. What is the new players personal time for the 40 yard dash?.
The new player's personal time is 4.5 seconds.
What is the new player's personal time?
The first step is to determine the total time the 5 persons complete the dash.
Total time = 5 x 5.7 = 28.5 seconds
The second step is to determine the total time for the 6 people to complete the dash.
Total time = 6 x 5.5 = 33 seconds
The third step is to find the difference of the time in the previous two steps: 33 - 28.5 = 4.5 seconds
To learn more about mean, please check: https://brainly.com/question/25842202
Levi buys a one-pint bottle of juice for $1.76. What is the unit rate of the
of the juice per fluid ounce?
Answer:
$0.11 per fluid ounce
Step-by-step explanation:
1 pint = 16 fluid ounces
1.76 / 16 = 0.11
Which expression represents ¨the product of a number and 6¨?
Answer:
[tex]n*6[/tex]
Step-by-step explanation:
A number being n and the product meaning multiplication.
(Questions 1 - 10 have already been answered.)
Sarah’s math grades are as follows:
40, 68, 76, 80, 84, 86, 86, 88, 90, 96
Determine the following about her grades.
1. mean =
79.4
2. median =
85
3. MAD =
86
4. range =
56
5. Q1 =
76
6. Q3 =
88
7. IQR =
12
8. Upper Fence =
58
9. Lower Fence =
106
10. Outlier =
40
11. Best Measure of center to use = ?
A) 86
B) 79.4
C) median
D) 76
E) 56
F) 40
G) mean
H) 10.84
I) 58
J) 85
K) 108.4
L) 96
M) 88
N) 106
O) 12
P) None
Answer:
G
Step-by-step explanation:
The best measure to use would be the mean, because it is an average of all of the numbers.
PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS ASAP PLS PLS
