Question 3
Find the measure of the angle indicated by the ?

Answer:

True

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:

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: 64

Step-by-step explanation:

Answer:

the last one yw :)

Step-by-step explanation:

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:

30 degrees

Step-by-step explanation:

Brainliest me

Answer:

40

AB=AOB÷2

and AB=ACB

so AB= 80÷2

AB=40

Answer:

z-1/-3

Step-by-step explanation:

z-1=-3a

z-1/-3=a

Answer:

600 is the answer

Step-by-step explanation:

I literally just took the test! Hope dis helps.

Answer:

600

Step-by-step explanation:

I took this test on USA test prep and got this question it correct

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].

Answer:

It's 21

Step-by-step explanation:

12/16 = x/28

cross multiply

16x = 336

divide by 16 on both sides

you get x = 21

I just did a test and got it right

Answer:

12.5

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

In subtracting, you must start with the larger number

Answer: I am pretty sure its C i hope this helps :D

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

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:

9

Step-by-step explanation:

Answer:

i think its negative 9 because The absolute value of −9 is 9

Step-by-step explanation:

have a great day!

Answer:

See Explanation (Incomplete Question)

Step-by-step explanation:

The question is incomplete as the distance of the Green tail is not given.

Given

[tex]Teams = 4[/tex]

Required

Determine the distance covered by each

Since each team would cover the same amount of distance, the distance covered by each is the total distance divided by 4.

In other words,

[tex]Each = \frac{Total\ Distance}{4}[/tex]

Assume the total distance of the green tail is 9 miles, the distance by each would be:

[tex]Each = \frac{9}{4}[/tex]

[tex]Each = 2.25\ miles[/tex]

Answer:

√10/10

Step-by-step explanation:

Multiply the numerator and denominator by the conjugate.  

Hope this helps!! Please consider marking brainliest! Have a good one!!

Answer:

√10 / 10

Step-by-step explanation:

1/√10

To rationalize the denominator we need to get rid of any √ in the denominator. we do this by multiplying both sides by the square root:

1/√10 * √10/√10 = √10 / 10

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:

[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: y-8= x

Step-by-step explanation:

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:

0.44444444

Step-by-step explanation:

Answer:

the decimal expansion of 4/9 = 0

Step-by-step explanation: