Helpp please i need this answer as soon as possible

Helpp Please I Need This Answer As Soon As Possible

Answers

Answer 1

Answer:

Expression A and C

Step-by-step explanation:

Answer 2

Answer:

the expresión Is A AND B


Related Questions

A back patio has 127ft^2127 f t 2 of area in Brad's yard. If his patio is perfectly square, what is the side length of the patio? Round your answer to the nearest hundredths place. Group of answer choices 11.27 feet 11.3 feet 11 feet 11.25 feet

Answers

Answer:

The length of side of patio is 11.27 feet.

Option A is correct option.

Step-by-step explanation:

Area of patio = 127 ft^2

We need to find side length of the patio.

Since the patio is square, the formula used is:

[tex]Area\: of\: square = l^2[/tex]

where l is the side length of square.

Now, putting value of area we can find area of square.

[tex]Area\: of\: square = l^2\\127=l^2\\Switching\:sides\:\\l^2=127\\Taking\:square\:root\:on\:both\:sides\\\sqrt{l^2}=\sqrt{127} \\l=11.27[/tex]

So, the length of side of patio is 11.27 feet.

Option A is correct option.

I NEED HELP ASAP, ILL MARK BRAINLIEST!!!

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions:

y < 2x − 7
y is greater than or equal to negative 1 over 2 times x plus 3

Part A: Describe the graph of the system, including shading and the types of lines graphed. Provide a description of the solution area. (6 points)

Part B: Is the point (3, −7) included in the solution area for the system? Justify your answer mathematically. (4 points)

(10 points)

Answers

Answer:

A: The line is a dotted line and the shaded part is on the right side of the line

B: Yes it is correct because if u put in the x value and the y value and calculate it the statement is true.

Two men are decorating a room. One has painted 20 m² and the
other only 6 m². They continue painting and manage to paint
another x m'each. If the first man has painted exactly three times
the area painted by the second man, find the value of x.

Answers

Answer:

1 m²

Step-by-step explanation:

The first man painted:

x + 20

The second man painted:

x + 6

If the first man painted 3 times more, then:

x + 20 = 3(x + 6)x + 20 = 3x + 183x - x = 20 - 182x = 2x = 1

In a winter storm, the amount of snowfall is directly proportional to the time
it has been snowing. After 4 hours, a total of 7 inches of snow has fallen. Determine how many inches of
snowfall have fallen after 6 hours. Show the work that leads to your answer.

Answers

Answer:

10.5 Inches of snow after 6 hours

Step-by-step explanation:

First you would divide

7/4=1.75

Then you would multiply by 6

1.75*6=10.5

10.5 inches of snow would be the total

Hope this helped! :D

The amount of snowfall in 6 hours, if the amount of snowfall is directly proportional to the time, is 10.5 inches.

What is proportion?

In general, the term "proportion" refers to a part, share, or amount that is compared to a whole. According to the definition of proportion, two ratios are in proportion when they are equal.

Given:

In a winter storm, the amount of snowfall is directly proportional to the time,

After 4 hours, a total of 7 inches of snow had fallen,

Calculate the amount of snowfall in one hour as shown below,

amount of snowfall in one hour  =  7 / 4

Calculate the amount of snowfall that occurs in 6 hours,

Amount of snowfall in 6 hours  =  7 / 4 × 6

Amount of snowfall in 6 hours  =  10.5 inches

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Item 8 Starting at 1:00 p.M., the temperature changes −4 degrees Fahrenheit per hour. Write and solve an equation to find how many hours x it will take to reach −1°F. An equation is ? =−1. It will take hours to reach −1°F.

Answers

Answer:

The answer is "9".

Step-by-step explanation:

Given equation:

[tex]\to 35-4x=-1 \\\\\to 35+1 = 4x\\\\\to 36=4x\\\\\to 4x= 36\\\\\to x=\frac{36}{4}\\\\\to x=9[/tex]

Last one lol see picture.. will mark brainliest!!

Answers

Answer:

the second one

Step-by-step explanation:

The equation is x+2y=20
Rearrange the equation for y.

Answers

Answer:

2y=20-x

y=20-x/2

y=10-x/2

Step-by-step explanation:

If someone could please answer this for me it’s 9th grade math 12 points:) asap pleaseee

Answers

50 is the answer your welcome
50 is the answer
I just copied what the other person said because I'm not in 9th grade lol

which is a mathematical property shown here
8(x+7)
1 commutative property
2 distributive property
3 identity of addition

Answers

it is distributive property. you would need to distribute the 8 onto the x and 7, making it 8x+56
Distributive property

Help pleasseeee
If f(x)=3x^2-7x find f(-2)

Answers

Answer:

f(-2) = 26

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Function Notation

Step-by-step explanation:

Step 1: Define

f(x) = 3x² - 7x

f(-2) is x = -2

Step 2: Evaluate

Substitute in x:                    f(-2) = 3(-2)² - 7(-2)Exponents:                          f(-2) = 3(4) - 7(-2)Multiply:                               f(-2) = 12 + 14Add:                                     f(-2) = 26

Let v = (-13, 2) and w= (–9,-5). What is w-v?
(-22, -23)
(-4,7)
(4,-7)
(22, 3)

Answers

Answer:

C) (4,-7)

Step-by-step explanation:

The value of w-v is (4, -7).

What is Coordinates?

Coordinates is an address, which helps to locate a point in two-dimensional space.

Here, given coordinates;

v ≡ (-13, 2)    and    w ≡ (-9, -5)

Now, we need to find;

w - v ≡ (-9-(-13), -5 - 2)

        ≡ (-9+13 , -7 )

        ≡ (4, -7)

Thus, the value of w-v is (4, -7).

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is 3(5b - 2) and 8b - 5 equivalent

Answers

Answer:

No

Step-by-step explanation:

Answer:

I don't think so.

Step-by-step explanation:

3(5b - 2) would be equivalent to 15b - 6

Use the table to answer the question. X y -21-1 -1 -1 1 0 3 1 5 2 7 Which equation represents the relationship between x and y shown in the table? 1 O A. y = fx- -1 O B. y = x+3 Oc. C. y=2x-1 D. y = 2x + 3​

Answers

Answer:

D. y = 2x + 3​

Step-by-step explanation:

Use the table to answer the question.

x:-2  -1   0   1    2

y: -1   1   3   5   7

Which equation represents the relationship between x and y shown in the table.

Solution:

The table shows a linear relationship between x and y.

A linear equation is in the form y = mx + b, where y is a dependent variable, x is an independent variable, m is the rate of change (slope) and b is the value of y when x = 0.

The table (x, y) has the points (-2, -1) and (0, 3). The equation is given by:

[tex]y-y_1=\frac{y_2-y_1}{x_2-x_1} (x-x_1)\\\\y-(-1)= \frac{3-(-1)}{0-(-2)} (x-(-2))\\\\y+1=2(x+2)\\\\y+1=2x+4\\\\y=2x+3[/tex]

Diego has two jobs. He works 3 hours at the library each day, making $8 per hour. In addition, he works at a coffee shop, making $7.50 per hour. At the coffee shop, he works more than 4 hours but less than 7 hours
each day Diego needs to make at least $70 daily to afford his living expenses.
Which of the following systems represents the constraints given in this scenario?
Let I represent the number of hours he works at the library
and c represent the number of hours he works at the coffee shop.

A: l = 3
4 < c < 7
8l + 7.50 ≥ 70

B: l = 3
4 ≤ c ≤ 7
8l + 7.50 ≥ 70

C: 1 = 3
4 ≤ c ≤ 7
7.50l + 8c ≤ 70

D: 1=3
4 < c < 7
7.50l + 8c ≥ 70

Answers

Answer:b

Step-by-step explanation:

Answer:B

Step-by-step explanation:

A plane is flying at an elevation of 1000 feet, directly above a straight highway. Two cars on the highway are on different sides of the plane. The angle of depression to one car is 10 degrees and to the other car is 8 degrees. How far apart are the cars, to the nearest foot

Answers

Answer:

Step-by-step explanation:

Please answer am really failing my math and i need this answer asap​

Answers

Answer:

[tex]9) \: y = - 1x - 6[/tex]

[tex]10) \: y = \frac{1}{6}x + 4[/tex]

Find the measure of each acute angle.

(3x + 2)∘ = and x∘ =

Answers

Answer:

The measure of one of the acute angles is 22 degrees, and the measure of the other acute angle is 68 degrees.

Step-by-step explanation:

The angles of a triangle add up to 180 degrees; we know this by the Sum of Angles of a Triangle Theorem.

Then one angle is marked as a right angle meaning it has a measure of 90 degrees.

Using this information and the labels on the diagram we can set up an equation:

x+3x+2+90=180

Now we can solve for x.

4x+92=180

4x=88

x=22 degrees

The measure of one of the acute angles is 22 degrees.

Now to solve for the measure of the other acute angle.

Subsitute the value of x first.

x=22

(3x+2)=?

3*22+2=68 degrees

The measure of the other acute angle is 68 degrees.

In the right-angled triangle given, the measure of each of the acute angles in the given diagram are:

[tex]\mathbf{22^{\circ}}\\\\\mathbf{68^{\circ}}[/tex]

The triangle given is a right triangle having an angle tat is 90 degrees and two other acute angles given as: x and (3x + 2)

Thus:

[tex]x + (3x + 2) + 90 = 180^{\circ}[/tex] (sum of triangle)

Solve for the value of x

[tex]x + 3x + 2 + 90 = 180[/tex]

Add like terms

[tex]4x + 92 = 180\\\\[/tex]

Subtract 92 from each side

[tex]4x = 180 - 92\\\\4x =88[/tex]

Divide both sides by 4

x = 22

Measure of one of the acute angles is 22 degrees.

To find the second acute angle measure, substitute the value of x

3x + 2 = 3(22) + 2 = 68 degrees

Therefore, in the right-angled triangle given, the measure of each of the acute angles in the given diagram are:

[tex]\mathbf{22^{\circ}}\\\\\mathbf{68^{\circ}}[/tex]

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A baseball ticket costs $75, but they are having a
promotional game night and all tickets are 35% off. What is
the new price of the ticket?

Is 74.65 correct

Answers

No the answer is $40
The correct answer is 26.25

Lin's job pays $8.25 an hour plus $10 of transportation allowance each week. She has to work at least 5 hours a week to keep the job, and can earn up to $175 per week (including the allowance). Represent this situation mathematically in two inequalities. Let `x` represent the number of hours Lin works in a week.

Answers

Answer:

10000

Step-by-step explanation:

several perople form groups with four people in each group. write an expression for the number of groups formed by p people. how many groups are formedif there are 28 people

Answers

Answer:

a) an expression for the number of groups formed by p people

number of groups formed = [tex]\frac{p}{4}[/tex]

b) How many groups are formed if there are 28 people

number of groups formed = [tex]\frac{p}{4}[/tex]

                                             =28÷4

                                             = 7

Answer: 7 groups

HOPE THIS WILL HELP :)

Find the measures of the angles of a triangle in which one angle is 70°& the other two are in the ratio 3:8.

Answers

Answer:

30° ; 80°

Step-by-step explanation:

Given that :

One angle of a certain triangle = 70°

The other two angles are in the ratio 3 : 8

Recall :

Sum of angles in a triangle = 180°

Number of angles in a triangle = 3

Hence,

Sum of the other two angles + 70 = 180

Hence, sum of the other two angles = (180 - 70)°

Sum of other two angles = 110°

The angle is in the ratio 3:8

Hence,

(3 / (3 +8)) * 110

= 3/11 * 110

= 330 / 11

= 30°

(8 / (3 +8)) * 110

= 8/11 * 110

= 880 / 11

= 80°

Hence ; 30° ; 80°

Write an equation in slope-intercept form of the line that passes through (0,-5) and (5,-1)

Answers

Answer:

y=4/5x-5

Step-by-step explanation:

to find the slope intercept form (y=mx+b) we must find the slope(m) first. We take the two points given and use the slope formula (y2-y1/x2-x1) take the point (0,-5) as (x1,y1) and the point (5,-1) as (x2,y2).Using the slope formula {-1-(-5)/5-0}. We get the slope equal to 4/5. Now we have y= 4/5x+b.To find b we must choose one point from the given and substitute x and y in the formula we have(y=4/5x+b). I chose (0,-5) so substituting that, (-5=4/5(0)+b), and to finally get b=-5.Now substitute b in the equation y=4/5x+b to get y=4/5x-5.

Solve each equation.
X – 10 = 4
Math

Answers

Answer:

x=14

Step-by-step explanation:

Solving the equation x - 10 = 4, the value of x, which is the solution is calculated as x = 14.

How to Solve an Equation?

Solving an equation simply involves determining the value of the variable in the equation, which is the unknown.

For example, we are asked to solve the equation, x - 10 = 4., what it simply means is that we need to determine what the value of x is in the equation that will make it true. Do the following:

x - 10 = 4

x - 10 + 10 = 4+ 10 [addition property of equality]

x = 14

Therefore, the solution of the equation is x = 14.

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3x²-30x+9=0
PLEASE HELP
COMPLETING THE SQUARE WILL MARK BRAINLIEST

Answers

Answer:

i have done the cutting of x's exponent

Step-by-step explanation:

= 3x - 30+9 =0

= 3x - 21 =0

= 3x= 21

= x = 21/3

x= 7 this the answer

Jamal is hanging some lights on his house. His ladder is 12 feet long and makes an 80˚ angle with the ground. How high up the wall of his house will his ladder reach? Round your answer to the nearest hundredths place. Just enter a numeric answer, no units needed.

Answers

no no english sir i can’t understand def not speaking no english yuh no no english i so sorry yeah no english

The ladder will reach 11.82 ft high of the wall of his house.

The situation will form a right angle triangle. Therefore,

The length of the ladder is the hypotenuse of the triangle formed.

The height of the wall is the opposite side of the triangle.

Therefore,

using trigonometric ratio,

sin 80°  = opposite / hypotenuse

sin 80° = h / 12

cross multiply

h = 12 sin 80°

h = 12 × 0.98480775301

h = 11.8176930361

height of the wall ≈ 11.82 ft

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Can you please help me with this question?

Answers

Answer:

A. 3

Step-by-step explanation:

since it is just reflected the length dosen't change

Which polynomial identity will prove that 49 − 4 = 45?

Answers

Answer:
Option A is correct
Difference of squares identity should be used to prove 49-4 =45
Step-by-step explanation:
Prove that : 49 - 4 = 45
Polynomial identities are just equations that are true, but identities are particularly useful for showing the relationship between two apparently unrelated expressions.
Difference of the squares identity:

Does anybody know the average individual score for a Mathcounts competition?

Answers

Answer:

4.0 hope this helps!!6

A couch costs $350 to make. Before it is sold, it is marked up in price 80% more. How much will the couch cost?​

Answers

Answer:$630

Step-by-step explanation:

What is 80% of 350?

Y is 80% of 350

Equation: Y = P% * X

Solving our equation for Y

Y = P% * X

Y = 80% * 350

Converting percent to decimal:

p = 80%/100 = 0.8

Y = 0.8 * 350

Y = 280

then u add 280 to 350

Find value of P and Q

Answers

Answer:

[tex] P= 6 \frac{1}{7}\\\\

Q = 4 \frac{2}{7}[/tex]

Step-by-step Explanation

[tex] \frac{5 + 3 \sqrt{2} }{5 - 3 \sqrt{2} } = P+Q\sqrt 2 \\ \\ \frac{(5 + 3 \sqrt{2}) }{(5 - 3 \sqrt{2}) } \times \frac{(5 + 3 \sqrt{2}) }{(5 + 3 \sqrt{2} )} = P+Q\sqrt 2 \\ \\ \frac{ {(5 + 3 \sqrt{2} )}^{2} }{ {(5)}^{2} - (3 \sqrt{2})^{2} } = P+Q\sqrt 2 \\ \\ \frac{ {5}^{2} + {(3 \sqrt{2} )^{2} + 2.5.3 \sqrt{2} } }{25 - 9 \times 2} = P+Q\sqrt 2 \\ \\\frac{ 25 + 18 + 30 \sqrt{2} }{25 - 18} = P+Q\sqrt 2 \\ \\\frac{ 43 + 30 \sqrt{2} }{7} = P+Q\sqrt 2 \\ \\ \frac{43}{7} + \frac{30 }{7} \sqrt{2} = P+Q\sqrt 2 \\ \\ equating \: like \: terms \: on \: both \: sides \\ \\ P = \frac{43}{7} \\ \\ \huge \red { \boxed{ P= 6 \frac{1}{7}}} \\ \\ Q = \frac{30}{7} \\ \\ \huge \orange { \boxed{ Q = 4 \frac{2}{7} }}[/tex]

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