Please help ive lost my ability for simple patterns. Its due by end of day. Pt. 3

Answer:

4

Step-by-step explanation:

c+d=16

d=6

so c will be 10 as c+6=16

c=10

d=6

so c-d=10-6=4

hope it helps

Answer:

21.) 50°

22.) 135°

23.) 37°

24.) 100°

25.) 105°

26.) 60°

Step-by-step explanation:

Answer:

Solution: cot(52°)

Step-by-step explanation:

Remember that the cofunction of angle theta say, is the trigonometric complement of the angle. It represents the relationship between trigonometric functions. In this case you can use the formula:

tan(θ) = cot(90° - θ)

If we plug in '38 degrees' in replacement of 'theta' we can solve for tan(38) in terms of cot. Let's see what our solution is:

tan(38°) = cot(90° - 38°),

tan(38°) = cot(52°)

Therefore the cofunction with the same value as tan(38°) would be cot(52°). Remember this is only one example of it's 'cofunction.'

Answer:

cot(52)

Step-by-step explanation:

cofunction of tan (38)

The cofunction of and angle Ф is the trigonometric complement of an angle.

it shows the relationship between trigonometric  functions as:

list the cofunction formula for tan

tan(Ф) = cot(90° - Ф)

plugin Ф = 38 into the formula:

tan (38) = cot(cot(90° - 38)

tan(38 = cot(52)

Answer:

-2 is found to the left of the origin (0), in a more specific way, -2 is 2 down to the left of zero.

Step-by-step explanation:

Answer:

45

Step-by-step explanation:

Answer:

8 centimeters.

Step-by-step explanation:

[tex]6cm\ on\ map\ -> 15km\\[/tex]

Divide 3 both sides:

[tex]2cm\ on\ map\ -> 5km[/tex]

Multiply 4 on both sides:

[tex]8cm\ on\ map\ -> 20km[/tex]

8cm on the map represents 20km.

The distance of 20 Km on scale is 8 cm.

A scale factor is a numerical value that can be used to alter the size of any geometric figure or object in relation to its original size. It is used to find the missing length, area, or volume of an enlarged or reduced figure as well as to draw the enlarged or reduced shape of any given figure. It should be remembered that the scale factor only affects how big a figure is, not how it looks.

Given:

Scale: 6cm represents 15 Km

1 cm represents 5/2 = 2.5 Km

So, the distance of 20 Km is represented by

= 20/ 2.5

= 8 cm

Hence, the distance on scale is 8 cm.

Learn more about Scale here:

https://brainly.com/question/29464385

#SPJ2

Answer:

15°F

Step-by-step explanation:

Answer:

4.13 miles

Step-by-step explanation:

i believe

Answer:

4.1285714286

Step-by-step explanation:

Answer:

wow dis might take a while to solve

Answer:

least to greatest

.86, 8/9, .9

Answer:

.86,8/9,9 ttttttttttttttttttftfffff

Answer:[tex]2s^{2} +11s+15[/tex]

Step-by-step explanation:

lenght of the pool = 2s+5

width of the pool= s+3

Area= [tex]l*w[/tex]

Just substitute the l and w

Area= [tex](2s+5)(s+3)[/tex]

=[tex]2s^{2}+5s+6s+15[/tex]

=[tex]2s^{2} +11s+15[/tex]

Step-by-step explanation:

2x⁴ + x² − x + 7

= 2x⁴ + 1x² + -1x + 7

The coefficient of the x² term is 1.

Answer:

2 notes

Step-by-step explanation:

500+500=1000/=

Kamau needs 2 notes

Answer:

1/49

Step-by-step explanation:

7^-2

1/49

7^2 is usually 49 for negative exponents just flip it

Answer:

(7)^-2

Step-by-step explanation:

hope this helps

Answer:

[tex]x=-1[/tex]

Step-by-step explanation:

[tex]-4x+7=11[/tex]

Subtract 7 from both sides:

[tex]-4x+7-7=11-7[/tex]

[tex]-4x=4[/tex]

Divide both sides by -4:

[tex]\frac{-4x}{-4}=\frac{4}{-4}[/tex]

[tex]x=-1[/tex]

I'll do problem 1 to get you started.

Answers are in bold

Answer:

heres what i did on the 2.1.4 practice problem on apex

Step-by-step explanation:

1. Circle the two boats you picked for your trip.

the yacht and the tall ship (aka the pirate ship)

2. Make sense of the problem.

what do you know?

The tall ship makes the trip in 10 hours. The yacht makes the trip in 2.5 hours. The tall ship is 30 knots slower than the yacht.

what do you want to find out?

How fast is each boat traveling in knots (nautical miles per hour)?

what kind of answer do you expect?

probably just some numbers like 10 miles per hour or 40 miles per hour

Writing some expressions

3. Write an expression for the distance going to the island. Let x be the speed of the boat you are taking to the island. Distance is equal to speed times time. (2 points)

the expression would be D = 10(x-30), d is the distance. it could also be simplified to 10x - 300

4. Write an expression for the speed of the boat coming back from the island in terms of the other boat's speed. Let x be the speed of the boat you are taking to the island. (2 points)

so the yacht's speed would be S = x knots, s is for speed.

5. Write an expression for the distance returning from the island. Use the expression for speed you found in question 4. Remember that distance is equal to speed times time. (2 points)

the distance returning from the island would be D = 2.5x.

6. Each ship travels the same distance. Set the distances equal to each other to get the equation for the speed of the ship you are taking to the island. (1 point)

10x - 300 = 2.5x

7. Solve the equation from question 6 for x. What does this tell you? (5 points: 1 point for showing your work, 3 points for solving for x, 1 point for explaining the answer)

  10x - 300 = 2.5x  

10x - 300 + 300 = 2.5x + 300

  10x -2.5x = 300

   7.5x = 300

        x = 40

x is the speed of the yacht. (40 nautical miles per hour)

8. How fast does the second boat travel? Show your work. (2 points: 1 point for showing your work, 1 point for the answer)

the yacht travels at 40 nautical miles per hour and the tall ship travels at 100 (10x - 300) nautical miles per hour.

9. When you get to the island, you decide to take a kayak tour to a nearby reef. A kayak is a small boat you row with a paddle.

Find the speed for the kayak. Use one of these facts to help.

The steamboat's speed is 4 less than 8 times the speed of the kayak.

The tall ship's speed is 1 more than 3 times the speed of the kayak.

The yacht's speed is 5 less than 15 times the speed of the kayak.

Write and solve an equation for the speed of the kayak. Show your work. (5 points: 2 points for writing a correct equation, 3 points for the solution)

the equation for the speed of the kayak is 40 = 15x - 5, which in this case, x is the speed of the kayak

 40 = 15x - 5

  40 + 5 = 15x -5 + 5

 45 = 15x

   x = 3

therefore, the speed of the kayak is 3 nautical miles per hour.

10. The length of your trip to the island is 40 nautical miles less than 20 times the distance to the reef.

It's 2:00 p.m. now, and your boat leaves the island at 7:30 p.m. Will you be able to kayak to the reef and back by then?

If so, how long will you have to spend at the reef?

If not, how late will you be for the return trip?

Explain how you plan to solve this problem. Then solve the problem, showing all work. (5 points: 2 points for the explanation of the plan, 1 point for deciding if you will make it back to the island on time, and 2 points for determining either how long you can spend at the reef or how late you'll be)

the distance to the island is 100 nautical miles, so the expression would be 100 = 20x -40, with x being the distance to the reef.

we can solve for x by doing:

100 = 20x -40

100 + 40 = 20x - 40 + 40

140 = 20x

140 / 20 = x

    x = 7

so the distance from my starting point to the reef will be 7 nautical miles, and the distance from the island to the reef would be 93 nautical miles.in that case, I would be like a day and a half late, but if you are trying to say that the ship is waiting for me at the starting point of my "adventure", then I would not be late if I kayak from my starting point to the reef, in fact, I could stay at the reef for like 50 min, because:

7 / 3 = 2 1/3 hours.

2 1/3 x 2 = 4 2/3 hours or 280 min. (to the reef and back)

7:30 p.m. - 2:00 p.m. = 5 1/2 hours or 330 min. (how much time I have till the ship leaves)

330 - 280 = 50 min. (how many min I can spend at the reef)

x = 36

2x + 27 = 3x - 9

27 + 9 = 3x - 2x

x = 36

Answer:

ok

Step-by-step explanation:

Answer:

[tex]4500 = 1200 + 300m[/tex]

Step-by-step explanation:

Given

[tex]Total = 4500[/tex]

[tex]Base\ Amount = 1200[/tex]

[tex]Payment = 300[/tex] monthly

Required

Write an expression to determine the number of months

The total can be expressed using:

[tex]Total = Base\ Amount +Payment * Number\ of\ months[/tex]

Substitute value for each term

[tex]4500 = 1200 + 300 * m[/tex]

[tex]4500 = 1200 + 300m[/tex]

Hence:

Option F answers the question

[tex]Area=\frac{(a + b)}{2} \cdot h\\144 = \frac{(12 + 8)}{2} \cdot h\\144 = \frac{20}{2} \cdot h\\144 = 10h\\h = \frac{144}{10} = \frac{72}{5}[/tex]

Answer:

Daniel gained 30 dollars.

Step-by-step explanation:

-10 + 20 = 10

10 - 30 = -20

-20 + 50 = 30

Hope this helps :)

Answer:

3/7

Step-by-step explanation:

We do this by first finding the greatest common factor of 27 and 63, which is 9.

Then, we divide both 27 and 63 by the greatest common factor to get the following simplified fraction:  3/7

hope this helps plz mark brainilest

Answer:

0.42857142857

Step-by-step explanation:

Answer:

2/3

Step-by-step explanation:

We solve with combination formula

C(n, r) = nCr = n!/r!( n - r)!

The selection will happen between four women and six men

Total number of people = Total number of possibly outcomes = Four women + six men

= 10 people

This can happen in two ways

a) 2 women

b) 1 man and 1 woman

The probability that at least one woman is selected =

4C2 ×(6C1 + 4C1)÷ 2 ways / 10C2

[6 × (6+ 4)] ÷ 2 / 45

= (6 × 10) ÷ 2/45

= 30/45

= 2/3

Answer:

b

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer:

a) If Chloe is not happy at 6pm,  the probability that she has not had dinner yet =P(B/D)= 0.8

b) If Chloe is happy at 6pm,the probability that she has already had dinner= P(A/C) = 0.9

Step-by-step explanation:

Let A be an event that Chloe is happy given that she has had dinner by 6pm

P(A) =  0.9

Let B be an event that  Chloe is not happy given that she has not had dinner by 6pm

P(B) = 0.8.

Let C be an event that Chloe eats dinner by 6pm on a given day

P(C) = 60%=0.6

Let D be an event that Chloe does not eat dinner by 6pm on a given day

P(D) = 1- 60%=1- 0.6= 0.4

This requires conditional probability .

Part a

P(B/D)=P(B∩D)/P(D)

P(B∩D) = 0.8 *0.4=0.32

P(D) = 0.4

P(B/D)=P(B∩D)/P(D)

         = 0.32/0.4= 0.8

P(B)= P(B/D)

0.8 is equal to 0.8

This shows that the  events are independent.

b)

P(A/C)= P(A∩C)/ P (C) = 0.9*0.6/0.6= 0.9

Which is again equal to probability of event A showing that the events are independent.

Answer:

Total houses = 54

House sold last month = 1/3 * 54 = 18

Remaining houses = 54-18 = 36

Houses sold this month = 5/6* 36 = 30 houses

House left to be sold = 36 - 30 = 6 houses

Answer:

the first and second car seats are appropriate for a 33 lb. child. The first seat suits children up to 34 lb. The second seat suits children that weight between 16 to 40 lb.

The only seat that is not appropriate would be the third one that is too large, since children between 34 to 90 lb. should use it.

seat 1 ≤ 34 lb ⇒ simple inequality

16 lb < seat 2 and seat 2 < 40 lb ⇒ compound inequality

34 lb < seat 3 and seat 3 ≤ 90 lb ⇒ compound inequality

Answer:

B. (8, 1)

Step-by-step explanation:

Given M(6, 5) as midpoint of PQ, and P(4, 9),

let [tex] P(4, 9) = (x_2, y_2) [/tex]

[tex] Q(?, ?) = (x_1, y_1) [/tex]

[tex] M(6, 5) = (\frac{x_1 + 4}{2}, \frac{y_1 + 9}{2}) [/tex]

Rewrite the equation to find the coordinates of Q (x1, y1):

[tex] 6 = \frac{x_1 + 4}{2} [/tex] and [tex] 5 = \frac{y_1 + 9}{2} [/tex]

Solve for each:

[tex] 6 = \frac{x_1 + 4}{2} [/tex]

Multiply both sides by 2

[tex] 6*2 = \frac{x_1 + 4}{2}*2 [/tex]

[tex] 12 = x_1 + 4 [/tex]

Subtract 4 from both sides

[tex] 12 - 4 = x_1 + 4 - 4 [/tex]

[tex] 8 = x_1 [/tex]

[tex] x_1 = 8 [/tex]

[tex] 5 = \frac{y_1 + 9}{2} [/tex]

Multiply both sides by 2

[tex] 5*2 = \frac{y_1 + 9}{2}*2 [/tex]

[tex] 10 = y_1 + 9 [/tex]

Subtract 9 from both sides

[tex] 10 - 9 = y_1 + 9 - 9 [/tex]

[tex] 1 = y_1 [/tex]

[tex] y_1 = 1 [/tex]

Coordinates of Q is (8, 1)

9 ÷ 5 1/4 = 36/21

Simplify

36/21 = 12/7 = 1 5/7