I am so lost an I can't fail this class ​

Answer:

  3x + 4y = 8

Step-by-step explanation:

Slope intercept form:                 Standard form:

  y = mx + b                                    Ax + By = C

  y = -3/4x + 2                                 y = -3/4x + 2             add 3/4x to both sides

                                                        3/4x + y = 2              multiply by 4

                                                        3x + 4y = 8

Answer:

B

Step-by-step explanation:

3 1/5 x 7/1

(3 x 5) + 1 = 16/5

16/5 x 7/1 = 112/5.

112 ÷ 5 = 22 2/5

so its B.

Answer:

22 2/5, twenty two and two fifths, B.

Step-by-step explanation:

7 * 3 1/5

To make it simpler, convert 3 1/5 into a mixed number.

3 1/5 = 15/5 + 1/5 = 16/5

Now, it's 7 * 16/5

Next, to prevent confusion, convert 7 to a mixed fraction as well.

7 = 7/1 (also known as a rational number.)

now it's 7/1 * 16/5

Simply multiply 7 * 16 and 1 * 5, which results in

112/5

The answer is a mixed number, and you want to simplify it as much as possible,

112/5 is 5 going into 112 with it's highest factor.

5*22 is 110, which is the highest factor that can go into 112.

now 22 can be the whole number, and the remaining numbers in the part over whole fraction stays put. Basically, you subtract the numerator of the mixed number with the highest factor that the denominator can fit into the numerator. (112-110 = 2)

So, the answer is 22 2/5, B. (cannot be further simplified.)

Answer: 52

Step-by-step explanation: use the calculator lol

Answer:

52

Step-by-step explanation:

Answer:

No

Step-by-step explanat

Answer:

True

Step-by-step explanation:

Answer:

[tex]Average = 43.29[/tex]

Step-by-step explanation:

Given

Time: 44.64,43.45,42.79 and 42.28

Required

Determine the average time

Average or mean is calculated as thus;

[tex]Mean = \frac{\sum x}{n}[/tex]

Where

[tex]\sum x[/tex] = sum of observation

n = number of observation = 4

[tex]Average = \frac{44.64 + 43.45 + 42.79 + 42.28}{4}[/tex]

[tex]Average = \frac{173.16}{4}[/tex]

[tex]Average = 43.29[/tex]

Hence, the average time is 43.29

Answer:

0.44444444

Step-by-step explanation:

Answer:

the decimal expansion of 4/9 = 0

Step-by-step explanation:

Answer:

Twelve fifty thousand ninety nine

Step-by-step explanation:

:))))))

Answer:

[tex]Volume = 2000\ in^3[/tex]

Step-by-step explanation:

Given

Dimension: 10in by 20in by 10in

Required

Determine the capacity of the aquarium

This question implies that, we calculate the volume of the prism and this is calculated by multiplying the dimensions of the aquarium. i.e.

[tex]Volume = Length * Width * Height[/tex]

Substitute values for the dimensions

[tex]Volume = 10 * 20 * 10[/tex]

[tex]Volume = 2000\ in^3[/tex]

Hence, the volume of the aquarium is 2000 cubic inches

Answer:

The value of k is 0.149.

Step-by-step explanation:

The complete question is:

In 2004, an art collector paid $84,275,000 for a particular painting. The same painting sold for $27,000 in 1950. Complete part (a) through (d)? (a) Find exponential growth rate k, to three decimal places, and determine the exponential growth function V, for which V(t) is the painting’s value, in dollars, t years after 1950.

Solution:

The exponential growth function can be expressed as follows:

[tex]y=a\cdot e^{kt}[/tex]

y = Final value after t years

a = initial value

It is provided that:

y = $84,275,000

a = $27,000

The value of t from 1950 to 2004 is, t = 54

Compute the value of k as follows:

[tex]y=a\cdot e^{kt}[/tex]

[tex]84,275,000=27,000\times e^{54k}\\\\e^{54k}=\frac{84275000}{27000}\\\\54k=\ln (\frac{84275}{27})\\\\k=\frac{1}{54}\times \ln (\frac{84275}{27})\\\\k=0.149[/tex]

Thus, the value of k is 0.149.

Answer:

5.25

Step-by-step explanation:

15% × 35 =

(15 ÷ 100) × 35 =

(15 × 35) ÷ 100 =

525 ÷ 100 =

5.25

Answer:

[tex]d=\sqrt{149}\approx12.21[/tex]

Step-by-step explanation:

To find the distance between any two points, we can use the distance formula:

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2[/tex]

We have the two points (-1, 7) and (-8, -3).

Let (-1, 7) be (x₁, y₁) and let (-8, -3) be (x₂, y₂). Substitute:

[tex]d=\sqrt{(-8-(-1))^2+(-3-7)^2}[/tex]

Evaluate:

[tex]d=\sqrt{(-8+1)^2+(-10)^2}[/tex]

Evaluate:

[tex]d=\sqrt{(-7)^2+(-10)^2}[/tex]

Square:

[tex]d=\sqrt{49+100}[/tex]

Add:

[tex]d=\sqrt{149}\approx12.21[/tex]

This cannot be simplified. Hence, the distance between (-1, 7) and (-8, -3) is √(149) or approximately 12.21 units.

Answer:

2.A B C =(1,3,4,5,7,8,9,12,13,14......20)

The answer is:[tex]\to \bold{(A \cup B\cup C) \cap(A\cup B\cup C) = \bold{\{1,3,4,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20 \}} }\\\\\to \bold{(A \cap B\cap C) \cap(A \cap B \cap C)=\{6, 10, 11\}}[/tex]

Before giving the solution let discuss what is the universal set, Union, and intersection:

Following are the solution to the question:

Given:

Universal set [tex]\bold{ S = \{ 1 , 2 , 3 , ... , 18 , 19 , 20 \} }[/tex]

Let

[tex]\bold{A, B, C \subset S}[/tex] i.e.

[tex]\bold{A\subset S}\\\\\bold{B\subset S}\\\\\bold{C\subset S}\\\\[/tex]

Set [tex]\bold{A = \{ 1 , 6 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 18 , 19 , 20\}}[/tex]

Set [tex]\bold{B = \{ 1 , 3 , 4 , 6 , 8 , 9 , 10 , 11 , 12 , 15 , 20 \}}[/tex]

Set [tex]\bold{C = \{ 3 , 6 , 7 , 8 , 9 , 10 , 11 , 13 , 14 , 17 \}}[/tex]

Find:

[tex]\to \bold{(A \cup B\cup C) \cap(A\cup B\cup C) =?}\\\\\to \bold{(A \cap B\cap C) \cap(A \cap B \cap C)=?}[/tex]

Solution:

In [tex]\bold{(A \cup B\cup C) \cap(A\cup B\cup C)}:[/tex]

Calculating:

[tex]\bold{(A \cup B\cup C) }= \bold{\{1,3,4,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20 \}}[/tex]

In this question, the "[tex](A \cup B\cup C)[/tex]" value is equal to "[tex]\bold{\{1,3,4,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20 \}}[/tex]" that is 18 elements.

When we intersecting both sets that is[tex]\bold{(A \cup B\cup C) \cap(A\cup B\cup C)}[/tex] so, its value will be the same that is:

"[tex]\bold{\{1,3,4,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20 \}}[/tex]" .

In [tex]\bold{(A \cap B\cap C) \cap(A \cap B \cap C):}[/tex]

Calculating:

[tex]\bold{(A \cap B\cap C) }= \bold{\{6, 10, 11, \} }[/tex]

In this question, the "[tex]\bold{(A \cap B\cap C) }[/tex]" value is equal to "[tex]\bold{\{6, 10, 11 \} }[/tex]" that is 3 elements.

When we intersecting both sets that are [tex]\bold{(A \cap B\cap C) \cap(A \cap B \cap C):}[/tex] so, its value will be the same that is:

"[tex]\bold{\{6, 10, 11 \} }[/tex]".

So, the final answer is:[tex]\to \bold{(A \cup B\cup C) \cap(A\cup B\cup C) = \bold{\{1,3,4,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20 \}} }\\\\\to \bold{(A \cap B\cap C) \cap(A \cap B \cap C)=\{6, 10, 11\}}[/tex]Learn more:

brainly.com/question/24156307

Answer:

12.5

Step-by-step explanation:

Answer:

x = 30

Step-by-step explanation:

8x - 3(2x - 4) = 3(x - 6)

Distribute te -3 on the left, and the 3 on the right

8x - 3(2x - 4) = 3(x - 6)

8x - 6x + 12 = 3x - 18

Simplify

8x - 6x + 12 = 3x - 18

2x + 12 = 3x - 18

Inverse operations

2x + 12 = 3x - 18

-2x          -2x

12 = x - 18

+18     +18

30 = x

Answer:

the last one yw :)

Step-by-step explanation:

Answer:

6.61 mph

Step-by-step explanation:

Speed of current; c = 2 mph

Total time to travel upstream and back; t = t1 + t2 = 4 hours

Let x represent speed of the boat in still water

Then the actual speed of the boat when going upstream is x - 2, and the actual speed when going downstream downstream is x + 2.

We know that; distance = speed x time, Thus;

For the upstream trip;

12 = (x - 2)t1

t1 = 12/(x - 2)

For the downstream trip;

12 = (x + 2)t2

t2 = 12/(x +2)

Adding both equations, we have;

t1 + t2 = (12/(x - 2)) + (12/(x +2))

4 = (12/(x - 2)) + (12/(x +2))

Multiply through by (x - 2)(x + 2)

4(x - 2)(x + 2) = 12(x + 2) + 12(x - 2)

4x²- 16 = 12x + 24 + 12x - 24

4x² - 16 = 24x

4x² - 24x - 16 = 0

Using quadratic formula, we have;

x ≈ 6.61 mph

Answer:

[tex]\frac{8^x}{2^y} 2y=2x^{12}[/tex]

Step-by-step explanation:

Since the numerator and denominator have a common base, this expression can be rewritten as 2(3x−y).

substitute 12 for the exponent, 3x−y and you will get A

Answer:

The answer is A [tex]2^{12}[/tex]

Step-by-step explanation:

Since 2 and 8 are both powers of 2, substituting 23 for 8 in the numerator of  

[tex]\frac{8x}{2y}[/tex]

gives you

[tex]\frac{8x}{2y} 2y=2x^{12}[/tex]

Answer:

Positive

Step-by-step explanation:

Answer:

wait so it wants to know who walked faster?

Step-by-step explanation:

Answer:

3 in by 4 in

Step-by-step explanation:

The blueprint scale is 1 in : 6 ft

This means

1 in : 72 in

1 : 72

For the living room

18 ft by 24 ft can be written as : 18/6 by 24/6

3 in by 4 in -------- units in inches where 1 in : 6 ft

Answer:

The answer is 18 x 24

Step-by-step explanation:

Answer:

The answer is 4pq−pr−2qr

Answer:

0.07

Step-by-step explanation:

Answer:

4p^3 (4p + 1)

Step-by-step explanation:

All we can do with this equation is factor it.

16p^4 + 4p^3  

When we look at the coefficients, there is a common factor of 4 with 16 and 4. The p's are also common factors, and we can take out a common factor of x^3. We can combine these common factors and take them out of the equation at the same time.

4p^3 (4p + 1)

Answer:

30 degrees

Step-by-step explanation:

Brainliest me

Answer:

40

AB=AOB÷2

and AB=ACB

so AB= 80÷2

AB=40

Answer:

The third week they sold $375 in bumper stickers

Step-by-step explanation:

Proportions and Percentages

During the first week, the civic group sold 500 bumper stickers as a fundraiser.

During the second week. they sold 50% more bumper stickers than the first week. First, we calculate the increment of 50% of 500:

50% 500 = 50 * 500 / 100 = 250

Thus the second week they sold:

500 + 250 = 750 bumper stickers

Now we know the third week they sold 50% fewer than the second week.

Again, we calculate the 50%, but this time on the basis of 750, and not 500 bumper stickers:

50% 750 = 50 * 750 / 100 = 375

Thus the third week they sold:

$750 - $375 = $375

The third week they sold $375 in bumper stickers

Answer:

Step-by-step explanation:

hehehehdhdnenwne

Answer:

The vector is [tex]\vec r = \left(\frac{6}{7},\frac{4}{7},-\frac{12}{7}\right)[/tex].

Step-by-step explanation:

We can determine the equivalent vector ([tex]\vec r[/tex]), dimensionless, by means of the following formula:

[tex]\vec r = \frac{\vec u}{\|\vec u\|} \cdot \|\vec r\|[/tex] (1)

Where:

[tex]\vec u[/tex] - Original vector, dimensionless.

[tex]\|\vec u\|[/tex] - Norm of the original vector, dimensionless.

[tex]\|\vec r\|[/tex] - Norm of the new vector, dimensionless.

The norm of the original vector is determined by the following definition:

[tex]\|\vec u\| = \sqrt{\vec u\,\bullet \,\vec u}[/tex] (2)

If we know that [tex]\vec u = (3, 2, -6)[/tex], then the norm of the original vector is:

[tex]\|\vec u\| = \sqrt{(3)\cdot (3)+(2)\cdot (2)+(-6)\cdot (-6)}[/tex]

[tex]\|\vec u\| = 7[/tex]

If we know that [tex]\|\vec r\| = 2[/tex], then the new vector is:

[tex]\vec r = \frac{2}{7}\cdot (3,2,-6)[/tex]

[tex]\vec r = \left(\frac{6}{7},\frac{4}{7},-\frac{12}{7}\right)[/tex]

The vector is [tex]\vec r = \left(\frac{6}{7},\frac{4}{7},-\frac{12}{7}\right)[/tex].