CAN SOMEONE HELP ME PLEASE (ASAP)

Answer:

\

Step-by-step explanation:

its to blurry what does it say so i can help

Answer:

its too blurry

Step-by-step explanation:

Answer:

it would be all positive #s (real #s)

Step-by-step explanation:

The domain can be All positive real numbers

Real numbers are numbers that include both rational and irrational numbers. Rational numbers such as integers (-2, 0, 1), fractions(1/2, 2.5) and irrational numbers such as √3, π(22/7).

Given:

y = 0.75x

where y is number of purchasing post cards and x is the number of post cards purchased.

as, x is number of postcard purchased.

So, number of postcard purchased cannot be negative, only positive real number are allowed.

Hence, the possible domain is All positive real numbers

Learn more about real numbers here:

https://brainly.com/question/9876116

#SPJ2

Answer:

  (3x -10)(x -2)

Step-by-step explanation:

You want to start by finding two factors of 3·20 = 60 that have a total of -16.

  60 = (-1)(-60) = (-2)(-30) = (-3)(-20) = (-4)(-15) = (-5)(-12) = (-6)(-10)

The last of these factor pairs (-6, -10) have a total of -16, so these are what you need to rewrite the middle term:

  3x² -6x -10x +20

Now, you can factor by pairs:

  = 3x(x -2) -10(x -2)

  = (3x -10)(x -2) . . . . your factored trinomial

Answer:

C. Its graph is symmetric about the y-axis

Step-by-step explanation:

I just took the pre-test

You can also graph the function and it is the same on both sides of the axis. For other questions like this I suggest: math-way

I was able to eliminate the first two answers using this website.

The characteristic of the cosine function is Its graph is symmetric about the y-axis.

cosine function formula in terms of sides of a right-angled triangle is written as:

cos x = Adjacent Side/Hypotenuse = Base/Hypotenuse, where x is the acute angle between the base and the hypotenuse.

Properties of cosine depend upon the quadrant in which the angle lies. The cosine function is a special trigonometric function and has many properties. Some of them are listed below:

As, The graphs of sine and cosine have the same shape: a repeating “hill and valley” pattern over an interval on the horizontal axis that has a length of .

Hence, the graph is  symmetric about the y-axis.

Learn more about cosine function here:

https://brainly.com/question/17954123

#SPJ2

Answer:

B

Step-by-step explanation:

Perpendicular lines have a reciprocal slope with the opposite sign. The y-intercept does not matter

Answer:

37.5 hours

Step-by-step explanation:

12.5 for every 5 days

Question asks for 15 days

5 x 3 = 15

12.5 x 3 = 37.5 hours

Answer:

37.5 hours I think is the correct answer

Answer:

the bigger angle is 119

the smaller one is 61

Answer:

[tex]Digit = 7 * 10 +4 * 1 + \frac{0}{10} + \frac{5}{100} + \frac{2}{1000}[/tex]

Step-by-step explanation:

Given

[tex]Digit = 74.052[/tex]

Required

Expand

[tex]Digit = 74.052[/tex]

Split into individual digits

[tex]Digit = 7 * 10 +4 * 1 + 0 * 0.1 + 5 * 0.01 + 2 * 0.001[/tex]

Convert all decimals to fraction

[tex]Digit = 7 * 10 +4 * 1 + 0 * \frac{1}{10} + 5 * * \frac{1}{100} + 2 * * \frac{1}{1000}[/tex]

[tex]Digit = 7 * 10 +4 * 1 + \frac{0}{10} + \frac{5}{100} + \frac{2}{1000}[/tex]

Answer:

△QPS≅△RPK by reason ASA, SAA

PS = PK , AC = BD , m∠ABC=m∠BAD, ΔAOK ≅ ΔBOL are proved.

Congruent triangles are those of the same size and shape. This means that the corresponding sides are equal, as are the corresponding angles. We can determine whether two triangles are congruent without testing all of their sides and angles.

1) in ΔPQR we have ,

             PQ = PR

IN,       ∠PRQ = ∠PQR (Isosceles triangle)

180° - ∠PQR = 180° - ∠PQR

         ∠PQR = ∠PSQ

IN ΔPSQ = PRK

        ∠SPQ = ∠RPK

            ∠Q = ∠R IS GIVEN IN QUESTION SO,

       ∠SPQ = ∠RPQ

so, by ASA congruence  we have ,

     ΔPSQ ≅ ΔPRK

    So, PS = PK

hence proved .

2) There are several ways two triangles can be congruent.

AC = BD congruent by SAS

ABC ≅ BAD congruent by the corresponding theorem

In ΔAOC and ΔBOD, we have the following observations

AO = DO ( O is the midpoint of line segment AD)

BO = CO ( Because O is the midpoint of line segment BC)

∠AOB = ∠COD (vertical angles are congruent)

  ∠AOC = ∠BOD ( vertical angles are congruent)

Using the SAS (side-angle-side) postulate, we have:

AC = BD

Using the corresponding theorem,

ΔABC ≅ ΔBAD

The above congruence equation is true because:

2 sides of both triangles are congruent

1 angle each of both triangles is equal

Corresponding angles are equal

Hence Proved.

3) There are several ways two triangles can be congruent.

ΔAOK ≅ ΔBOK

are congruent by SAS

In ΔAOL and ΔBOK, we have the following observations

AO = BO ( O is the midpoint of line segment AB)

∠AOL = ∠BOK ( vertical angles are congruent)

LO = KO ( O is the midpoint of line segment KL)

Using the SAS (side-angle-side) postulate, we have:

ΔAOK ≅ ΔBOK

The above congruence equation is true because:

2 sides of both triangles are congruent

1 angle each of both triangles is equal

Hence proved

To learn more about congruent triangles, refer to :

https://brainly.com/question/1582456

#SPJ2

72 x 3 = 216 ÷ 2 = 108

Answer:

D

Step-by-step explanation:

Slope of BC

= - 1/3

Altitude to BC

= 3

The required slope of the AD altitude to BC is given by option D. 3

AD is the altitude to BC

Altitude is defined as the perpendicular line to the line from the opposite vertex of the triangle.

for ΔABC, AD is the altitude to BC

Since, the slope of the perpendicular line is equal to the negative inverse of the slope of the line over which its is perpendicular.
so,
slope of AD= -1/slope of BC

slope of BC = -1-2/3+6
= -3/9
slope of BC = -1/3
Hence,
slope of AD = -1/-1/3
= 3

Thus, The required slope of the AD altitude to BC is given by 3.

Learn more about altitude here:
https://brainly.com/question/18530806

#SPJ2

Answer:

7 t 24=31y

Step-by-step explanation:

Answer:

a

   [tex]\mu=E(y) = 7.9[/tex]

b

  [tex]\sigma = 2.17[/tex]

c

 [tex]P(4 < X < 12) = 0.96[/tex]

Step-by-step explanation:

From the question the data given is  

     y      3         4       5       6       7       8      9      10        11      12      13

    p(y)  0.03  0.05  0.07  0.10  0.14  0.20  0.18  0.12  0.07  0.03  0.01

Generally the mean is mathematically represented as

      [tex]\mu =E(y) = \sum_{n=3}^{13} x_i * P(x_i)[/tex]

=>   [tex]\mu =E(y) = 3 * 0.03 + 4 * 0.05 + \cdots +13 * 0.01[/tex]

=>   [tex]\mu=E(y) = 7.9[/tex]

Generally the standard deviation is mathematically represented as

     [tex]\sigma = \sqrt{ [var(y)]}[/tex]

Here [tex][var(y)][/tex] is the variance which is mathematically represented as

       [tex][var(y)] = [\sum_{n=3}^{13} x_i^2 * P(x_i)] -[ E(y)]^2[/tex]

=>     [tex][var(y)] =[ (3^2 * 0.03 ) + (4^2 * 0.05)+ \cdots + (13^2 * 0.01)] -[ 7.9]^2[/tex]

=>     [tex][var(y)] =67.14 - 62.41[/tex]

=>     [tex][var(y)] =4.73[/tex]

Thus  

     [tex]\sigma = \sqrt{ 4.73}[/tex]  

      [tex]\sigma = 2.17[/tex]

Generally the interval given is   µ ± 2σ  i.e  [  µ - 2σ ,  µ +2σ]

substituting values  

             [tex][7.9 - 2(2.17) ,7.9 - 2(2.17) ][/tex]

            [tex][3.56 ,12.24 ][/tex]

Now approximating this interval to a whole number

          [tex][4 ,12][/tex]

Hence the probability  that the value of Y falls in the interval µ ± 2σ is mathematically represented as

     [tex]P(4 < X < 12) = P(x__4} ) + \cdots + P(x__{12}})[/tex]

      [tex]P(4 < X < 12) = 0.05 + \cdots +0.03[/tex]

     [tex]P(4 < X < 12) = 0.96[/tex]

Answer:

[tex]y = \frac{2}{3} x - 3 \frac{2}{3} [/tex]

Step-by-step explanation:

Let's rewrite the given equation in the form of y= mx +c, where m is the gradient while c is the y-intercept.

2x -3y= 9

3y= 2x -9

Divide by 3 throughout:

[tex]y = \frac{2}{3} x - 3[/tex]

Thus, the gradient of given line is ⅔.

Parallel lines have the same gradient.

Therefore, gradient of line is ⅔.

Substitute m=⅔ into the equation:

[tex]y = \frac{2}{3} x + c[/tex]

To find the value of c, substitute a pair of coordinates.

When x=4, y= -1,

[tex] - 1= \frac{2}{3} (4) + c \\ - 1 = \frac{8}{3} + c \\ c = - 1 - \frac{8}{3} \\ c = - 3 \frac{2}{3} [/tex]

Substitute the value of c:

[tex]y = \frac{2}{ 3} x - 3 \frac{2}{3} [/tex]

Answer:   x = 4

Step-by-step explanation:

It will be a vertical line that passes through +4  and every y-value

Answer:

x=4

Step-by-step explanation:

This is because it will pass through the middle it should be a vertical line that passes through +4  and every y-value to get the right answer

Hope this helps :D Please hit that thanks button below and mark brainliest if correct so sorry if I'm wrong just tell me and I will try to correct it    

Answer:

6.5

Step-by-step explanation:

Answer:

0.1588

Step-by-step explanation:

Answer:

See Explanation

Step-by-step explanation:

Given

[tex]Weight = 41.3kg[/tex]

Required

Determine the weights that approximates to 41.3kg

The options are not given but the question is still solvable

In approximation:

0 - 4 approximates to 0

This implies that:

41.30 to 41.34 approximates to 41.3

Also:

5 - 9 approximates to 1

This implies that:

41.25 to 41.29 approximates to 41.3

Bring the range together, we have:

[tex]Range = 41.25\ to\ 41.34[/tex]

Select any three numbers within this range, and you have your answer

Examples are: 41.25, 41.28, 41.34\

Answer:

 b

Step-by-step explanation:

Answer:

The answer is B

Answer:

w = 3/4 or w = -1/4

Step-by-step explanation:

3l4w - 1l - 5 = 1

Add 5 to both sides.

3|4w - 1| = 6

Divide both sides by 3.

|4w - 1| = 2

Set the inside of the absolute value equal to 2 and -2.

4w - 1 = 2 or 4w - 1 = -2

Add 1 to both sides.

4w = 3 or 4w = -1

Divide both sides by 4.

w = 3/4 or w = -1/4

Check w = 3/4:

3l4w - 1l - 5 = 1

3|4(3/4) - 1| - 5 = 1

3|3 - 1| - 5 = 1

3|2| - 5 = 1

6 - 5 = 1

1 = 1

w = 3/4 works.

Check w = -1/4:

3l4w - 1l - 5 = 1

3|4(-1/4) - 1| - 5 = 1

3|-1 - 1| - 5 = 1

3|-2| - 5 = 1

3(2) - 5 = 1

6 - 5 = 1

1 = 1

w = -1/4 works.

There are no extraneous solutions.

Answer: w = 3/4 or w = -1/4

Answer:

yes  

Step by-step explanation:

it will take up 8 12/16 space and the wall has 8 15/16

Answer:

a. 19%

Step-by-step explanation:

The percent of the initial set-up and operation costs that Sam needs to finance with a lender or investor is A. 19%.

A percentage is a number or ratio that can be expressed as a fraction of 100. A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%", although the abbreviations "pct.", "pct" and sometimes "pc" are also used. A percentage is a dimensionless number; it has no unit of measurement.

here, we have,

to illustrate the percentage:

From the information given,

Sam is planning to start a pool cleaning business from his home.

he has developed a cost analysis for the set-up and operation for the first year of his business.

He has $9,000 in savings and $23,000 in credit that he can use for the business.

so, we get,

Here, the percent of the initial set-up and operation costs that Sam need to finance with a lender or investor is simply 19%.

Learn more about percentages on:

brainly.com/question/24304697

#SPJ7

Answer:

n = 16

Step-by-step explanation:

8n/9 = 6.4/0.45

Cross multiply.

0.45 * 8n = 9 * 6.4

3.6n = 57.6

n = 16

Answer:

Step-by-step explanation:

8n  =   6.4

9        0.45

simplify:

8n  =  14.222

9      

cross multiply:

8n = 14.222 (9)

n = 128

        8

n = 16

Answer:

Step-by-step explanation:                                                                                                              

ZXVCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

Answer:

14 feet.

Step-by-step explanation:

Volume=base area×height

1568=(L×L)×8

1568=8L²

Divide both sides by 8

L²=196

Then square root each side

L=14 feet

Multiply total hours worked by pay rate:

20.5 x $13.75 = $281.88

Answer:

[tex]sqrt{-64} =8i\\\\sqrt{-15} =isqrt{15} \\sqrt{-100} =10i\\sqrt{-25} =2i\sqrt{6}[/tex]

Step-by-step explanation:

I hope this helps