The expression sin(23°)cos(7°) + cos(23º)sin(7°) is equivalent to

Answer:

(0,-4)

(3,0)

Step-by-step explanation:

Let start at the orgin.

This is a linear equation since the equation is in the form of

[tex]y = mx + b[/tex]

where m is the slope and b is the y intercept.

Since we starting at the orgin, and b is our y intercept.

Our first point is

(0,-4).

since the slope is 4/3.

We would rise 4 from the y value and run 3 to the x value.

In other words, to find your second point, go up 4 units from the first point and move to the right 3 units.

So our next point is at

(3,0).

U can continously go up 4 units and move 3 units to the right to find other points.

Answer:

6

Step-by-step explanation:

6 is in the middle with 2 numbers on each side so it is the medium

Answer:

on edge its ur cool

Step-by-step explanation:

Answer:

A.  We know that this was an experiment rather than an observational study because treatments were administered, with the first group receiving the experimental drug, the second group receiving a placebo, and the third group receiving no treatment."

B. The factors are the variables.  The independent variable was group three that received no treatment, while the dependent variables were the first and second groups that received some treatments.  Another variable is the change in blood pressure recorded at the end of the period.

The levels refer to the different treatments that were administered to the three groups: experimental drug, placebo, and no treatment.

C. The principles of experimental design are Randomization, Repetition, and Control.  We are not aware of how the participants were chosen and this experiment was not replicated in the scenario.  We can affirm that there is Control because the three groups were not given the same treatment.

Step-by-step explanation:

In an observation, the researcher does not attempt to change any variables.  She simply observes and then records her observations.  In an experimental study, the researcher creates a control group and, also at least, one testable group.  The purpose is to compare the control group and the testable group.

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Answer: (A)

[tex]H_0:\mu=75\\H_a:\mu\neq75[/tex]

(B)

[tex]H_0:\mu=24\ sec\\H_a:\mu>24\ sec[/tex]

(C)

[tex]H_0:\mu=850\ ft^2\\H_a:\mu<850 \ ft^2[/tex]

Step-by-step explanation:

(A)  Objective: Scores in second-year calculus are scaled so the average each year is equivalent to a 75 or not.

[tex]H_0:\mu=75\\H_a:\mu\neq75[/tex]

(B) Objective: The mean time is 24 seconds or more for one particular maze.

[tex]H_0:\mu=24\ sec\\H_a:\mu>24\ sec[/tex]

(C) Objective: The average square footage of one-bedroom apartments in a new student-housing development is advertised to be 850 square feet or smaller.

[tex]H_0:\mu=850\ ft^2\\H_a:\mu<850 \ ft^2[/tex]

Answer:

i think the answer is c but im soo sorry if im wrong

Step-by-step explanation:

Answer:

it would be

18 x 5x = 915

solve the equation

18 x 5 = 90

90x = 915

divide by 90

x =10.1666

Step-by-step explanation:

Answer:

hello

Step-by-step explanation:

Answer:

Here, nice to meet you! I'm Avocadorable! lolz ;)

So first you need to find the area of the building site which is:

length x width

39.5m x 32.5m

= 1283.75[tex]m^{2}[/tex]

We know that one square meter costs 185.50 euros.

1[tex]m^{2}[/tex] = 185.50 euros

1283.75[tex]m^{2}[/tex] = 238135.625 euros

I'm not exactly that familiar with euros but I'm pretty sure that euros don't have 3 numbers after the point so the two nearest numbers are 238134.86 and 238135.86.

sorry if this is wrong, but I hope it helps, if the euros part is wrong please correct me thanks!

Answer:

[tex]\sqrt[11]{528}[/tex]= 48

Step-by-step explanation:

[tex]\sqrt[11]{528}[/tex]= 48

48 x 11 = 528

Answer:

The answer is 48

Step-by-step explanation:

Answer:

Option a (the feasible........BLUE) is the correct option.

Step-by-step explanation:

The other alternatives are not related to the given scenario. So the above is the right option.

Answer:

33.51 in^2

Step-by-step explanation:

Find the area of the circle:

A = πr^2

A = π * 8^2

A = 64π = 201.06 in^2

Find the area of the 60 deg slice:

A * 60/360 = 33.51 in^2

Leave a thanks and mark brainliest if this helped

Leave a thanks and mark brainliest if this helped

Answer:

The answer is A.

Step-by-step explanation:

Hope this helps.

Answer:

4

Step-by-step explanation:

Vertical angles are angles formed when two straight lines intersects at a point forming vertical angles that share the same vertex and are directly opposite to each other.

In the diagram given, we have the following pairs of vertical angles:

<7 and <9

<8 and <10

<12 and <14

<11 and <13

Therefore there are 4 pairs of vertical angles

Answer:

18%

step by step explanation:

36/200 × 100=18

Answer:

3/10

Step-by-step explanation:

the answer is 3/10 hope this helps may i be marked brainliest?

Answer:

The distance is 5.4.

Step-by-step explanation:

Hope this helps!! Have an Amazing day!!

Answer:

5.385

Step-by-step explanation:

Use the distance formula with (-6,2) (-4,7)

[tex]\sqrt{(x_{2}-x_{1})^2 + (y_{2}-y_{1})^2 }[/tex]

[tex]\sqrt{(-4--6)^2 + (7-2)^2 }[/tex]

[tex]\sqrt{(2^2) + (5^2)}[/tex]

[tex]\sqrt{4+25}[/tex]

[tex]\sqrt{29}[/tex]

= 5.385

Answer:

She needs to sample 189 trees.

Step-by-step explanation:

We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:

[tex]\alpha = \frac{1 - 0.95}{2} = 0.025[/tex]

Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].

That is z with a pvalue of [tex]1 - 0.025 = 0.975[/tex], so Z = 1.96.

Now, find the margin of error M as such

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.

The standard deviation of the population is 70 peaches per tree.

This means that [tex]\sigma = 70[/tex]

How many trees does she need to sample to obtain an average accurate to within 10 peaches per tree?

She needs to sample n trees.

n is found when M = 10. So

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

[tex]10 = 1.96\frac{70}{\sqrt{n}}[/tex]

[tex]10\sqrt{n} = 1.96*70[/tex]

Dividing both sides by 10:

[tex]\sqrt{n} = 1.96*7[/tex]

[tex](\sqrt{n})^2 = (1.96*7)^2[/tex]

[tex]n = 188.2[/tex]

Rounding up:

She needs to sample 189 trees.

Answer:

2 more sides.

Step-by-step explanation:

Decagon = 10 sides

Octagon = 8 sides

The prefix Octa means 8 sides

example : Octa is in Octapus; and octopus have 8 legs or tentacles.

Answer:

2 sides.

Step-by-step explanation:

Correct me if I'm wrong but a decogon has 10 sides and an ogtagon has 8 sides so it might be 2.

Answer:

y=9

Step-by-step explanation:

5(y-10)=-5

5y-50=-5

+50 +50

5y=45

/5 /5

y=9

Answer:

12

Step-by-step explanation:

Respuesta:

La fracción equivalente a 0.01 es 1/100.

Answer:

50%

Step-by-step explanation:

There is 2 side out of 100% half is 50 :D gl and mb if its wrong!

Answer:

* Here we assume that the coin tossed is fair.

Probability of event A = # Favorable cases for event A/ # Exhaustive cases for event B

Where

Favorable cases means outcomes of an experiment that favors a particular event

Exhaustive cases means, number of total possible outcomes.

For tossing a coin one time:

# Favorable cases = 1 (getting head)

# Exhaustive cases = 2 (two outcomes, say, head and tail)

So, P(getting head in a single toss) = 1/2

For tossing a coin two times:

# Favorable cases = 1 (getting 2 heads, say, HH)

# Exhaustive cases = 2*2 or 2^2 (4 outcomes, say, HH, HT, TH, TT)

So, P(getting 2 heads in two tosses of a coin) = 1/4

Similarly, for tossing a coin five times:

# Favorable cases = 1 (getting 3 heads, say, HHHHH)

# Exhaustive cases = 2*2*2*2*2 or 2^5 (32 outcomes, say, HHHHH, THHHH, ..... etc)

So, P(getting head in 5 tosses of a coin) = 1/32

Step-by-step explanation:

Answer:

9 OR 1

Step-by-step explanation:

Let the number be x

x² - 10x = -9

x² - 10x + 9=0

a=1

b=-10

c=9

Solve using the quadratic formula

x =9 or 1

Answer:

So its hard to tell if you want the answer to the SA of 4mm x 4mm x 4mm or the image but I did the mm one.

I got 9216 mm I wasn't sure if you need them converted to any other measurement.

Answer:

14 unit I think hope it helps

Answer:

The chart is showing how much many is in each persons piggy bank.

Step-by-step explanation:

Just a heads up , The title at the top of the graph gives off all the answers as to what the graph is showing.

Answer: 10.5

Step-by-step explanation:

C a l c u l a t o r

also I tried it myself so thats even more proof :D