Answers
The correct answer is D
i hope this will help
Related Questions
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
Answers
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
Are the expressions equivalent? 10(x + 2); 10x + 5
Answers
Answer: yes, indeed it is i forgot how it is but it is
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
?
Answers
65% is $416
65% = $416
1% = $6.40
100% = $6.40 x 100 = $640
So the original price of a sofa is $640
Hugo's bill for dinner at a restaurant was $16. He left a 15% tip. What was the amount of
the tip?
Answers
Answer:
you will multiple 16 from 15 and you will have 2.4
Graph y=-2x. Give the domain and range. Is the function dicrete or continou?.
Answers
Answer:
all real numbers
continuous function
Step-by-step explanation:
y = -2x is a straight line which extends infinitely in both directions
linear equations are continuous functions
SOMEONE HELP PLEASEEE IM CRYINGGGFG
Answers
PLS HELP IMMEDIATELY PLEASE
Answers
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
what is 5 1/3 divided by 1 1/6
Answers
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
how many months are there in 15 years
Answers
Answer:
180 months
Step-by-step explanation:
have a good day
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
Answers
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
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Answers
Answer:
complimentary x=5
Step-by-step explanation:
90degrees - 65degrees= 254degrees
25/5=5
x=5
Help me on this please show work
Answers
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
What is the prime factorization of 18?
Answers
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
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)}
Answers
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]
Given: 2×-7=4x+15 Prove: ×=-11
Answers
Answer:
2x - 4x = +7+15
-2x = +22
2x = -22
x = -11
Step-by-step explanation:
(put the numbers on one side and the letters on the other, just be careful about the symbols)
This bc it’s really really really hard and I can’t figure it out
Answers
Answer:
-4/5
Step-by-step explanation:
3/5+(-7/5)
-4/5
PLEASE HELP. WILL GIVE BRAINLIEST AND 5.0 STAR RATING
Answers
Which of the following expressions are equal to 7? Which are equal to - 7? Explain your thinking
-|-7|, |-7|, |7|, |-(-7)|, -|7|
Answers
Answer:
|-7|, = 7
|7|, = 7
|-(-7)|, = 7
Step-by-step explanation:
-|-7|, = -7
|-7|, = 7
|7|, = 7
|-(-7)|, = 7
-|7| = -7
What is the value of x?
Answers
Subtract the equations.
5x + 4y = 25
(5x +2y = 3)
O A. -10x = 28
В. бу= 28
C. 2y = 22
D. 10x = 28
Answers
Answer:
it's C
Step-by-step explanation:
2y=22............
A radio tower 200 ft. high casts a shadow 75 ft. long. What is the angle of elevation of the sun?
Answers
Angle of elevation of the sun: 69 degrees
Step-by-step explanation:
tan(x) = 200/75
x = tan^-1 (200/75)
x = 69 degrees
The angle of elevation of the sun is .
What is tangent of an angle?
The tangent of an angle is the ratio of height to base of the angle.
If we take the angle as Ф, then tan Ф = height/base.
Given, length of the tower is 200 ft. and the length of the shadow is 75 ft.
Let, the angle of elevation of the sun = Ф
Therefore, tan Ф = height/base = 75/200 = 0.375
Hence, Ф = [tex]tan{-1}[/tex](0.375) =
The angle of elevation of the sun is .
Learn more about the tangent of the angle here: https://brainly.com/question/15925556
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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?.
Answers
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
(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
Answers
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.
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.
Answers
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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39. Why are -2a and 18a like terms?
Answers
Answer:
they each share the same variable which is raised to the same exponent, 1
Step-by-step explanation:
PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS ASAP PLS PLS
Answers
BECAUSE BOTH SIDES ARE STRAIGHT
Which expression represents ¨the product of a number and 6¨?
Answers
Answer:
[tex]n*6[/tex]
Step-by-step explanation:
A number being n and the product meaning multiplication.
2. the sum of 10 and a number n
Answers
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
Please help me with this question!!!!!
Answers
Answer:
x-axis is for the independent variable
Step-by-step explanation:
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
Answers
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:
4.32