Mathematics High School

I need help with 8,9,10 please Instructions: factor these trinomials BRAINLY!!!!!!!!!! 20 points!!!!!!!!

Answers

Answer 1

Step-by-step explanation:

8: (y-6) (y+8)

steps: m + n = 2 and m×n = -48 so m is 8 and n is -6

9: (m-8)(m+2)

same steps for the first

10: (x-7)(x+2)

comment if you need any further help.

Related Questions

y = 4x - 9 complete the missing value in the solution to the equation

Answers

Answer: If you substitute the x for 3, and multiply 4 times 3, you’ll get 12 and then you subtract 9 from 12 and then you’ll get 3. I’m pretty sure y=3

Step-by-step explanation:

Suppose line segment XY has one endpoint at X(0,0). If (3,4) is the midpoint of XY, what are the coordinates of point Y?

Answers

X (0,0)
Midpoint (3,4)
Y (6,8)

A teacher surveyed her class after they had taken a vocabulary test. Eighteen of the students claimed they had studied at least one hour for the test. The remaining twelve students admitted that they had not studied for the test at all. The test results (expressed as a percent) for the two groups are shown below.

Studied :
87
,

100
,

94
,

79
,

92
,

100
,

95
,

83
,

89
,

99
,

100
,

91
,

89
,

95
,

100
,

93
,

96
,

83

Did Not Study :
82
,

72
,

45
,

91
,

58
,

83
,

65
,

87
,

90
,

77
,

73
,

89

Part 1: Calculate the mean of the group that studied, rounded to the nearest tenth.

Part 2: Calculate the mean absolute deviation of the group that studied, rounded to the nearest tenth.

Part 3: How many of the scores (from the group that studied) are within one mean absolute deviation of the mean.

Answers

Step-by-step explanation:

part1

the mean value is

(87+100+94+79+92+100+95+83+89+99+100+91+89+95+100+93+96+83) / 18

= 1665 / 18 = 92.5

part2

this is the sum of the absolute value of the differences bergen the individual sites and the mean value divided by the number of data points :

(5.5+7.5+1.5+13.5+0.5+7.5+2.5+9.5+3.5+6.5+7.5+1.5+3.5+2.5+7.5+0.5+3.5+9.5)/18

= 94/18 = 5.222222222... ≈ 5.2

part3

how many scores are less than 5.2 away (plus or minus) from the mean value ? in other words, how many differences in the part2 calculation were smaller than or equal to 5.2 ?

there are 9 scores meeting that criteria :

94, 92, 95, 89, 91, 89, 95, 93, 96

The first week, there were 10 students in a teacher’s classroom. The next week, there were 13 students in the same teacher's classroom. What is the percent increase of the number of students?

Answers

Answer:

130% increase

Step-by-step explanation:

ZA and 23 are supplementary angles. If m ZB = (4x + 3)º, then find the measure of ZA.

Answers

Answer:

Since they are supplementary angles which add up to 180 degrees the measure of ZA must be 157 degrees.

Step-by-step explanation:

In January, a store sold 3 scarves for $14.10. In March, it sold 5 scarves for $22.90. In which month did a scarf cost the least?

Answers

In January, a store sold 3 scarves for $14.10.

so 1 scarf = 14,10 : 3 = $4,7

In March, it sold 5 scarves for $22.90.

so 1 scarf = 22.90 : 5 = $4.58

In which month did a scarf cost the least?

in march

March because January (14.10 / 3 = 4.7) and March (22.90 / 5 = 4.58)

Look at the photo attached number 36

Answers

Answer:

a. Check Mark

b. Check Mark

c. No Check Mark

d. No Check Mark

e. No Check Mark

Step-by-step explanation:

1 hour = 60 minutes

1/4 X 60 min = 15

9 pages every 15 minutes

9 X 4 = 36

36 pages in an hour

Which is the equation of the function?
f(x) = 3]x] + 1
f(x) = 3x - 11
f(x) = (x + 1
f(x) = 1 |x-11

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

what is the answer? does anyone like maths because I don't?

Answers

Answer:

8 cm

Step-by-step explanation:

Th smaller rectangle is a scaled down version of the bigger rectangle. The smaller rectangle is 1/2 the size of the large one.

So we will multiply 4 by 2 to get 8 cm

Your correct answer is 8 cm :)

Hope this helps!

Please rate and mark brainliest!!

Have a great day!!

Answer:

the ratio of rectangle 1 the same with rectangle 2 so as you see in the photo the area of rectangle 2 equal 4×2 which we find it obviously of similar ratio

Two apples plus four bananas cost $2.00. An apple costs twice as much as a banana. Using the equations 2a + 4b = 2.00 and a = 26, where a is the cost of one apple and b is the cost of one banana, what are a and b?

Answers

Answer:

(B) a = $0.50, b = $0.25

Step-by-step explanation:

Answer choice B is the only one in which an apple costs twice as much as a banana.

It helps to see if the answer choices match the requirements of the problem statement.

How much do
Jennie sam if she
got 340 for
Babysitting, plus a
15% tip

Answers

First determine 15% of 340. Multiple 15 (as decimal) by 340.

0.15 x 340 = 51

Find the total amount she earns by adding these values.

51 + 340 = 391

Therefore, she will make $391.

the awenser is three

hundred and fifty five dolars

rewrite the equation by completing the square 6x + 55 = x^2

Answers

Answer:

x=11

x=−5

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation : 6*x+55-(x^2)=0

-x2+6x+55 =0

According to the Quadratic Formula, x , the solution for Ax2+Bx+C = 0 , where A, B and C are numbers, often called coefficients, is given by :

- B ± √ B2-4AC

x = ————————

In our case, A = -1

B = 6

C = 55

Accordingly, B2 - 4AC =

36 - (-220) =

256

Applying the quadratic formula :

-6 ± √ 256

x = ——————

-2

Can √ 256 be simplified ?

Yes! The prime factorization of 256 is

2•2•2•2•2•2•2•2

To be able to remove something from under the radical, there have to be 2 instances of it (because we are taking a square i.e. second root).

√ 256 = √ 2•2•2•2•2•2•2•2 =2•2•2•2•√ 1 =

± 16 • √ 1 =

± 16

So now we are looking at:

x = ( -6 ± 16) / -2

Two real solutions:

x =(-6+√256)/-2=3-8= -5.000

or:

x =(-6-√256)/-2=3+8= 11.000

Answer:

(x-3)^2 =64

x=3 plus or minus 8

Step-by-step explanation:

I got it right on khan

find the slope of the line whose angle of inclination is 60

Answers

Answer:

Slope (m) = tanθ

=tan60

=√3

Hence the slope is √3

I think it will help you

Brayden and his cousin Kayla live twenty miles away from each other. On the same day, Brayden recorded 1.046 inches of rain at his house and Kayla recorded 1.062 inches of rain at her house. Whose house received fewer inches of rain that day?

Answers

Brayden’s house, when you count the hundreds place Kayla’s number is higher.

Find the value of x.
A.
74°
53°

Answers

Answer:

Step-by-step explanation:

What is the value of w?

Answers

Answer:

37°

Step-by-step explanation:

angles in a triangle add up to 180 degrees.

if two sides have the same length, an isosceles triangle is formed. the angles corresponding to the sides that have the same length are the same therefore, as FH = HG, ∠HFG = ∠FGH

180° = ∠HFG + ∠FGH + ∠FHG

= 106° + ∠HFG + ∠HFG

= 106° + 2* ∠HFG

subtract 106 from both sides to isolate the unknown and its coefficient

74° = 2*∠HFG

divide both sides by 2 to isolate the unknown

37° = ∠HFG = ∠FHG = w

Melissa went for a drive in her new car. She drove at a speed of 25.6 miles per hour for 2 hours. For how many miles did she drive?

Answers

Answer:

51.2 miles

Step-by-step explanation:

25.6 x 2= 51.2

I really need answers for this

Answers

Answer:

1. [tex]-tan (x)[/tex]

2[tex]-san(x)[/tex]

3. [tex]cos (x)[/tex]

4. [tex]tan (\pi +3)[/tex]

Step-by-step explanation: May God bless you and your family during spring break

A circular flower bed is 17 m in diameter and has a circular sidewalk around it that is 3 m wide. Find the area of the sidewalk in square meters. Use 3.14 for π.

Answers

Step-by-step explanation:

A-a

A=3.14x10x10

=314m^2

a=3.14x8.5x8.5

=226.865m^2

=314-226.865

=87.135m^2

What are the measures of

Answers

Answer:
p is 110 degrees
q is 70 degrees
r is 110 degrees

Explanation:
r is congruent to 110 degrees across from it.
p is also congruent to r because lines b and c are parallel.
q can be found by subtracting 180-110 to get 70 degrees because p and q are supplementary angles (equal to 180)

WILL GIVE BRAINLIEST IF CORRECT PLEASE ANSWER!!!!!

Christian wraps a gift box in the shape of a triangular pyramid. The figure below shows a net for the gift box. If all the triangles are equilateral, how much wrapping paper did he use, in square inches?

Answers

The amount of wrapping paper he use is 62.4 square inches

How to calculate the surface area of a prism

The formula for calculating the total surface area is expressed as:

Area = 4(area of triangle)

Find the area of the triangle

A = 0.5(6)(5.2)

A =3(5.2)

A = 15.6 square inches

TSA = 4(15.6)
TSA = 62.4 square inches

Hence the amount of wrapping paper he uses is 62.4 square inches

Learn more on total surface area here: https://brainly.com/question/1297098

How do you know a table is linear?

How do you know an equation is linear?

How do you know a graph is linear?

Answers

Answer:

You can tell if a table is linear by looking at how X and Y change. If, as X increases by 1, Y increases by a constant rate, then a table is linear.

An equation is considered linear, if it is in the form of. y = mx + b. where m is the slope of the equation, and b is the y-intercept.

First of all the shape of the graph is a straight line. Every linear graph is nothing more than a straight line so if there is any curves in it, it's not linear. The other way to tell is look at its equation.

Step-by-step explanation:

Write an explicit formula for an, the n
term of the sequence 38, 44, 50,....
Answer: an =

Answers

The sequence 38, 44, 50,.... is an arithmetic sequence

The explicit rule of the sequence is an = 32 + 6n

How to determine the explicit formula?

The sequence 38, 44, 50,.... is an arithmetic sequence with the following parameters:

First term, a1 = 38

Common difference, d = 6

The explicit rule is calculated as:

an = a1 + (n - 1) * d

This gives

an = 38 + (n - 1) * 6

Evaluate the product

an = 38 - 6 + 6n

This gives

an = 32 + 6n

Hence, the explicit rule of the sequence is an = 32 + 6n'

Read more about arithmetic sequence at:

https://brainly.com/question/6561461

find the surface area of the regular pyramid 9ft and 6ft i canton find out what it is

Answers

Answer:

54 ft squared

Step-by-step explanation:

To find surface area l*w

9*6=54 ft squared

Carmen tutors English. For each hour that she tutors, she earns 20 dollars. Let E be her earnings (in dollars) after tutoring for H hours. Write an equation relating E to H. Then use this equation to find Carmen's earnings after tutoring for 15 hours.

Equation:___

Carmen's earnings for 15 hours:___ dollars

Answers

Answer:

E = 20h, she earns $300 for 15 hours

In ΔABC, If AB=BC and ∠B=40∘,what is the measure of ∠C?

Answers

Answer:

Step-by-step explanation:

all angles in a triangle add up to 180

if two sides are equal their angles are equal

180-40

140÷2

i need this now asap

Answers

Answer:

141.3

Step-by-step explanation:

π x 6 (3 + 4.5

Answer this, please!
Help!!!

Answers

Answer:

It is 45.8° because it is a straight line so straight line is 180°.

Evaluate 100−x^2 , when x is 6 *

Answers

Answer:

Step-by-step explanation:

100-6^2

6^2=36

100-36=64

Hope this helps :)

A balance scale is perfectly balanced with 2 cans of soda on one side and 1 can of soda and 8 ounces of sand on the other . How much does each can of soda weigh?

Answers

Answer:

i think it will weigh 8 ounces

Step-by-step explanation:

if one can plus it is equal to 2 itll will be balenced

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