MATHEMATICS HIGH SCHOOL

Plz help meeQuestion is in the picture

A. factoring
B. isolating the x^2 term and finding the square root of both sides
C. using the quadratic formula
D. all three methods would be efficient
Plz help mee Question is in the picture A. factoring - 1

Answers

Answer 1
Answer: The answer to this is D

Related Questions

Look at this sequence.95, 80, 65, 50,... Which function represents this sequence? A. a(n) = 110n - 15 B. a(n) = 15n + 80 C. a(n) = 95n - 15 D. a(n) = -15n + 95
In the triangle below y=? Round to the nearest tenth
A man moves to lie on an island in Europe. He has a choice of two water companies: Manana Water: No standing charge. Pay £0.06 per m3 of water used. Channel Water: Standing Charge: £30 every 3 months £0.02 per m3 of water used Special offer: 20% off your first bill. he estimates that he uses 700m3 of water every 3 months. which company should he choose?
Please help me ...............
Carson bought 3.9 pounds of chocolate cashrews for $15.84. About how much was the cost per pound?

List the perfect squares between 100 and 500 that are even numbers

Answers

10^2=100 \n.................\n\ 11^2=121 \n 12^2=144 \n 13^2=169 \n 14^2=196 \n 15^2=225 \n 16^2=256 \n 17^2=289 \n 18^2=324 \n 19^2=361 \n 20^2=400 \n 21^2=441 \n 22^2=484 \n................\n23^2=529

A triangle has sides measuring 15 15 and 15sqrt2 what are the angle measures of the triangle

Answers

We observe that we are in the presence of a rectangular triangle.
 Therefore, we have:
 An angle of 90 degrees.
 An angle that is given by:
 sine (x) = (15 / (15 * root (2)))
 sine (x) = (1 / root (2))
 x = asine (1 / root (2))
 x = 45 degrees
 And an angle that is given by:
 180-90-45 = 45 degrees
 Answer:
 The angle measures of the triangle are:
 90-45-45 degrees

The following data show the height, in inches, of 11 different plants in a garden: 9 4 10 9 5 2 22 10 3 3 5 After removing the outlier, what does the mean absolute deviation of this data set represent?

Answers

The outlier is the obviously different data among the whole group of data points. In this case, the outlier is 22. When you find the mean, you only use the data points without the outlier. Therefore,

Mean = (9+4+10+9+5+2+10+3+3+5)/10 = 6

Then, the mean absolute deviation is

∑(x-mean)^2/n, where x is every single data point and n is the number of data points which is equal to 10

|9-6|+|4-6|+|10-6|+|9-6|+|5-6|+|2-6|+|10-6|+|3-6|+|3-6|+|5-6| = 28

Then,

Mean Absolute Deviation (MAD) = 28/10 = 2.8

This is the average distance of the data from the mean.

Answer:

I took the test, it is On average, the height of a plant varies 2.8 inches from the mean of 6 inches.

Step-by-step explanation:

3. At a bargain store, Spongebob bought 3 items that each cost the same amount. Patrick bought 5 items that each cost the same amount, but each was $1.50 less than the items that Spongebob bought. Both Spongebob and Patrick paid the same amount of money. What was the individual cost of each person's items?

Answers

Answer: Cost of each item bought by Spongebob = $2.5

Cost of each item bought by Patrick = $1

Step-by-step explanation:

Let x be the cost of each item bought by Spongebob.

Then, cost of each item bought by Patrick = x- 1.50

Then, cost of 3 items bought by Spongebob =  3x

Cost of 5 items bought by  Patrick = 5(x-1.50)

If both Spongebob and Patrick paid the same amount of money then

3x= 5(x-1.5)\n\n\Rightarrow\ 3x=5x-1.5*5\n\n\Rightarrow\ 3x=5x-7.5\n\n\Rightarrow\ 5x-2x=7.5\n\n\Rightarrow\ 3x=7.5\n\n\Rightarrow\ x=(7.5)/(3)\n\n\Rightarrow\ x=2.5

Cost of each item bought by Spongebob = $2.5

Cost of each item bought by Patrick = $2.5-$1.5=$1

Hence, Cost of each item bought by Spongebob = $2.5

Cost of each item bought by Patrick = $1

Answer: Cost of each item bought by Spongebob = $2.5

Cost of each item bought by Patrick = $1

Step-by-step explanation:

Let x be the cost of each item bought by Spongebob.

Then, cost of each item bought by Patrick = x- 1.50

Then, cost of 3 items bought by Spongebob =  3x

Cost of 5 items bought by  Patrick = 5(x-1.50)

If both Spongebob and Patrick paid the same amount of money then

Cost of each item bought by Spongebob = $2.5

Cost of each item bought by Patrick = $2.5-$1.5=$1

Hence, Cost of each item bought by Spongebob = $2.5

Cost of each item bought by Patrick = $1

What is an equation of the line that passes through (0,8) and (4,0)?

Answers

Answer: y=-2x+8

Step-by-step explanation:

To find the slope of the line, you would use (y_(2)-y_(1) )/(x_(2) -x_(1) ). With the 2 points we are given , we can plug it into this equation to find the slope.

(0-8)/(4-0) =(-8)/(4) =-2

Now we know the slope is -2. To find the y-intercept, we know that the x value is 0. We are given that one of the points is (0,8). That means 8 is our y-intercept.

The final equation we get is y=-2x+8.

Answer:

y= -2×+8

Step-by-step explanation:

find m(slope)

y2-y1 over x2-x1

substitute using (0,8) and (4,0)

m=-2

y=mx+b

substitute x and y to find b using either (0,8) or (4,0)

0=-2(4) + b

0= -8 +b

0+8= -8+8 +b

8=b

y=-2x+8

Word problem: A High School had a musical in which students ($5 tickets) and adults ($7 tickets) attended. If a total of 47 tickets were sold and they made a total of $269. How many student tickets were sold and how many adult tickets were sold?

Answers

Answer:

30 of them were students

17 were adults

Step-by-step explanation:

bunny and rabbit problems

if they were all adults

7 x 47 = 329

329 - 269 = 60

60/ (7-5) = 30

30 of them were students

17 were adults
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