please helpppppp !!!

Answer:

Step-by-step explanation:

1.95 is the correct answer

Answer:

$11.5= senior citizen $8.75= child

Step-by-step explanation:

First you guess the number of citizens by seeing what 38 divided by 3 is. Once you get the quotient you keep guessing down to get it to a number that both the 3 senior citizens and 1 child can fit. I got $11.5= senior citizen $8.75= child. Next you multiply 11.5 * 3 =34.5 and 8.75*2= 17.5 and add to get 52!

Hope this helped it was my first time ever answering on here!

According to the given statements, the answers are as follows:

1. number of sides (n) = number of interior angles = number of exterior angles

2. All interior angles are congruent.

3. All exterior angles are congruent.

4. sum of interior angles = (n-2)180°.

5. sum of exterior angles = 360°.

6. measure of each interior angle = (n-2)180°/n.

7. measure of each exterior angle = 360°/n.

this is for the Sin

*Remember that sin = opposite / hypotenuse*

a² + b² = c² (where a and b are legs and c is the hypotenuse)

From the picture, you can see:

a = 3

c = 4

Plug these into the equation and solve for b.

* a² + b² = c² *

step 1: 3² + b² = 4²

step 2: 9 + b² = 16

step 3: b² = 16 - 9

step 4: b² = 7

step 5: √(b²) = √7

step 6: b = ± √7

FOR COS:

From the picture,  you can see that if θ is in quadrant II, b has to be negative.

b = -√7 = adjacent

Remember that cos θ = adjacent / hypotenuse.

cos θ = adjacent / hypotenuse

cos θ = (-√7 / 4)

Answer:

C.  4(3x+2)

Step-by-step explanation:

Each side of a square is equal to each other, so the perimeter would be 4*(3x+2).

The formula to convert liters (L) to nanoliters (nL) is: nL = L x 1,000,000

A liter is a unit of volume used to measure liquids or gases. It is part of the metric system of measurement and is abbreviated as "L". One liter is equal to 1000 cubic centimeters (cc) or milliliters (ml).

To give you a better idea of how much volume a liter represents, think about a typical water bottle that you might buy at a store. A standard water bottle typically contains around 0.5 liters of water, while a larger water bottle may contain 1-2 liters.

In addition to measuring liquids, liters can also be used to measure the volume of gases. For example, the capacity of a car engine might be given in liters, indicating the total volume of air and fuel that the engine can hold.

The liter is a widely used unit of volume around the world, and it is part of the International System of Units (SI).

One liter is equal to 1,000,000 nanoliters. Therefore, to convert liters to nanoliters, you can multiply the value in liters by 1,000,000.

The formula to convert liters (L) to nanoliters (nL) is:

nL = L x 1,000,000

For example, if you have 0.5 liters, the conversion to nanoliters would be:

nL = 0.5 L x 1,000,000

nL = 500,000,000 nL

Therefore, 0.5 liters is equal to 500,000,000 nanoliters.

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Answer:

ab

Step-by-step explanation:

Answer: x∈(-∞,-2√6-2)U(2√6-2,+∞)

Step-by-step explanation:

\(\displaystyle\\y=\frac{1}{4} (x+2)^2-6\\y > 0\\Hence,\\\frac{1}{4}(x+2)^2-6 > 0 \\\\\frac{1}{4}(x+2)^2-6+6 > 0+6\\\\\frac{1}{4}(x+2)^2 > 6\\\)

Multiply both parts of the equation by 4:

\((x+2)^2 > 24\)

Extract the square root of both parts of the inequality:

\(|x+2| > \sqrt{24} \\|x+2| > \sqrt{4*6} \\|x+2| > 2\sqrt{6}\)

Expand the modulus - we get a set of inequalities:

\(\displaystyle\\\left [{{x+2 > 2\sqrt{6}\ \ \ \ (1) } \atop {-(x+2) > 2\sqrt{6} \ \ \ (2)}} \right.\\\)

Multiply both parts of inequality (2) by -1 and reverse the sign of the inequality:

\(\displaystyle\\\left [ {{x+2-2 > 2\sqrt{6}-2 } \atop {x+2 < -2\sqrt{6} }} \right. \ \ \ \ \ \left [ {{x > 2\sqrt{6}-2 } \atop {x+2-2 < -2\sqrt{6} -2}} \right. \ \ \ \ \ \left [ {{x > 2\sqrt{6}-2 } \atop {x < -2\sqrt{6}-2 }} \right.\)

Thus,

\(x\in(-\infty,-2\sqrt{6}-2)U(2\sqrt{6} -2,+\infty)\)

For inflection Points of

The mean and standard deviation are is mathematically given as

x=78

sigma=8

Normal distribution is simply a symmetrical bell-shaped graph that displays the distribution of numerous random variables.

Generally, the equation for the  mean is mathematically given as

x=total sum /amount

Therefore

x=70+78+80/3

x=78

In conclusion, Inflexion point for normal distribution is given as

\(I=\mu+\sigma\\\\\mu+\sigma=86\)

Also

\(\mu-\sigma=70\)

Therefore

\(78+\d\sigma=86\)

sigma=8

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Answer:

19

Step-by-step explanation:

Substitute the values and use the order of operations to find the correct value.

q · s + r

2 · 5 + 9

10 + 9

19

Answer:

x = \(942\frac{2}{9}\)

Step-by-step explanation:

0.9 ( x - 20) = 830

0.9x - 18 = 830

0.9x = 848

9x = 8480

x = \(942\frac{2}{9}\)

The measure of angle ∠H in triangle ΔFGH is approximately 47.4 degrees.

To find the measure of angle ∠H in triangle ΔFGH, we need to use the Law of Cosines. The Law of Cosines relates the lengths of the sides of a triangle to the cosine of one of its angles.

According to the Law of Cosines, for any triangle with sides a, b, and c, and angle C opposite side c, the following equation holds:

c^2 = a^2 + b^2 - 2ab * cos(C)

In our case, we have side lengths f = 830 inches, g = 460 inches, and h = 500 inches. We are interested in finding the measure of angle ∠H, which is opposite side h.

Using the Law of Cosines, we can set up the equation:

h^2 = f^2 + g^2 - 2fg * cos(H)

Plugging in the given values, we have:

500^2 = 830^2 + 460^2 - 2 * 830 * 460 * cos(H)

Simplifying the equation, we get:

250000 = 830^2 + 460^2 - 2 * 830 * 460 * cos(H)

Now, let's solve this equation to find the value of cos(H). First, we can simplify the right side of the equation:

250000 = 688900 + 211600 - 2 * 830 * 460 * cos(H)

Next, combine like terms:

250000 = 900500 - 960800 * cos(H)

Rearranging the equation to isolate cos(H):

960800 * cos(H) = 900500 - 250000

960800 * cos(H) = 650500

cos(H) = 650500 / 960800

cos(H) ≈ 0.676

To find the measure of angle ∠H, we can take the inverse cosine (cos^(-1)) of 0.676 using a calculator:

H ≈ cos^(-1)(0.676)

H ≈ 47.4 degrees

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Answer: Vertical stretch by a factor of 3.

\(F = \frac{9}{5} c + 32\)

This Equation Is Used For Conversion Of Celcius To Fahrenheit.

Answer: Uhmm ok the answer i got would have been F = C x 9/5 + 32 But since there isn't a choice like that I think it's the second one- its the closest to what i got--

Step-by-step explanation:

Answer:

Step-by-step explanation:

Ok:

First Problem with coin!

1. A coin has 2 sides and one of them is going to land up or down which means it has a chance of 1 out of 2.

1 out of 2=

1/2= 50%

Second Problem with spinner

2. There are 12 spaces on the spinner and three of those spaces are blue.

SO: 3 out of 12=

3/12=

1/4=

25%

Answers: 50% and 25%

IN FRACTION FORM: 1/2 and 1/4

A type II error would occur if the candidate is actually a drug user, but the drug test incorrectly classifies them as a nonuser.

A type II error occurs when the null hypothesis is not rejected, even though it is false.

In this case, the null hypothesis is that the job candidate is not a drug user.

Therefore, a type II error would occur if the candidate is actually a drug user, but the drug test incorrectly classifies them as a nonuser.

In other words, a type II error would occur if the drug test fails to detect drug use in a job candidate who is actually a drug user.

This means that the organization would mistakenly hire a drug user, which could have negative consequences for the workplace and potentially put the safety of others at risk.

To minimize the risk of type II errors, organizations should use drug tests that are as accurate as possible and consider using multiple types of tests or follow-up testing to confirm results.

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Answer:

∠ B = 166°

Step-by-step explanation:

since ∠ A and ∠ B are vertical angles then they are congruent, that is

∠ A = ∠ B

6x - 26 = 5x + 6 ( subtract 5x from both sides )

x - 26 = 6 ( add 26 to both sides )

x = 32

Then

∠ B = 5x + 6 = 5(32) + 6 = 160 + 6 = 166°

Total number of red blood cells in the body is 20.8 * 10⁷

what is arithmetic?

Computation is an elementary part of mathematics that consists of the study of the parcels of the traditional operations on figures addition, deduction, multiplication, division, exponentiation, and birth of roots

Main body:

Red blood per cubic millimeter =5.2 million =5.2×10⁶

Red blood in 40 cubic millimeter of blood = 40 * 5.2×10⁶

= 20.8*10⁶*10

= 20.8 * 10⁷

because aⁿ*aˣ = aⁿ⁺ˣ.

hence , Total number of red blood cells in the body is 20.8 * 10⁷ .

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Answer:

Rly lazy man.....

Step-by-step explanation:

1/2*l*w is the area of triangle, plug in values...

1/2*4.5*6.6

14.85 square feet is the area

Answer:

A=14.85

Step-by-step explanation:

\(A=\frac{ab}{2}\)

"ab' are the lengths of the sides

\(A=\frac{(4.5)(6.6)}{2} \\\\A=\frac{29.7}{2} \\\\A=14.85\)

Hope this helped and answered your question! Have a great day/night!

If the graph is translated 3 up, reflected across the x-axis, and is narrower than the graph y = x², we have; y = -(x² + 3)

We are given the original equation of the function as;

y = x²

Now, when we translate the graph 3 units upwards, it means we add 3 units to the function to get;

y = x² + 3

Now, when we reflect across the x-axis, it means we just change the sign of the function to get;

y = -(x² + 3)

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Answer: b

Step-by-step explanation:

Because it says below zero and b is below zero

Answer:

-8/4 or -2

Step-by-step explanation:

First of all notice the graph is negative. Meaning that this will be a negative slope.

Now we can use rise over run, counting up 8 spaces, and to the left 4.

Since the graph is negative make the rise negative. -8/4.

To simplify this fraction divide -8 by 4, and receive an answer of -2.

-Hope this helped

\(\sqrt{3x+10}=\sqrt{2x+3}\\\\\\\dfrac{\sqrt{3x+10}}{\sqrt{2x+3}}=1\\\\\\\sqrt{\dfrac{3x+10}{2x+3}}=1\\\\\\\dfrac{3x+10}{2x+3}=1\\\\\\3x+10 =2x+3\\\\x = -7\)

Answer:

x=-7

Step-by-step explanation:

first simplify your equation to:

3x+10=2x+3

combine like terms

3x-2x=3-10

solve for x

x=-7

Answer:

yes she will

Step-by-step explanation:

just find the perimeter

14+14+10+10 or (14*2)+(10*2)

the add and you get 48 feet

48<50

Hope this helps

The length of the segment BE is 2 units.

A quadrilateral with parallel sides that are equal to one another and four equal vertices is known as a rectangle.

Given:

Quadrilateral ABCD is a rectangle.

BE=3x−7 and AC=8x−20.

E is the intersection point of the diagonals.

So,

AC/2 = BE

(8x−20)/2 = 3x−7

4x - 10 = 3x - 7

x = 3

So, BE = 2

Therefore, BE = 2 units.

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Answer:

The answer is 10.

Step-by-step explanation:

Negative 40 / Negative 4 = 10.

Answer:

10

Step-by-step explanation:

just...... divide. oh and 2 negatives turn into a positive so yeah

hope it helps

Answer:

Step-by-step explanation:

Given,

Marks of the four exams = 65, 80, 76, 68

Let the mark for the fifth exam be = x

Mean of the five exams = 70

Therefore,

By the problem,

\( = > \frac{65 + 80 + 76 + 68 + x}{5} = 70\)

\( = > \frac{289 + x}{5} = 70\)

=> 289 + x = 70 × 5

=> 289 + x = 350

=> x = 350 - 289

=> x = 61

Hence,

Marks of the fifth exam is 61 (Ans)

Answer:

82.25%

Step-by-step explanation:

To calculate the probability that you are not one of the first two singers in a karaoke contest with 22 contestants, we need to determine the number of favorable outcomes and the total number of possible outcomes.

The number of favorable outcomes is the number of possible positions for you in the singing order after the first two positions are taken. Since the first two positions are fixed, there are 22 - 2 = 20 remaining positions available for you.

The total number of possible outcomes is the total number of ways to arrange all 22 contestants in the singing order, which is given by the factorial of 22 (denoted as 22!).

Therefore, the probability can be calculated as follows:

Probability = Number of favorable outcomes / Total number of possible outcomes

Number of favorable outcomes = 20! (arranging the remaining 20 positions for you)

Total number of possible outcomes = 22!

Probability = 20! / 22!

Now, let's calculate the probability using this formula:

Probability = (20 * 19 * 18 * ... * 3 * 2 * 1) / (22 * 21 * 20 * ... * 3 * 2 * 1)

Simplifying this expression, we find:

Probability = (20 * 19) / (22 * 21) = 380 / 462 ≈ 0.8225

Therefore, the probability that you are not one of the first two singers in the karaoke contest is approximately 0.8225 or 82.25%.

To calculate the probability that you are not one of the first two singers, we need to determine the total number of possible outcomes and the number of favorable outcomes.

Total number of outcomes:

Since the singing order for the 22 contestants is randomly selected, the total number of possible outcomes is the number of ways to arrange all 22 contestants, which is given by 22!

Number of favorable outcomes:

To calculate the number of favorable outcomes, we consider that there are 20 remaining spots available after the first two singers have been chosen. The remaining 20 contestants can be arranged in 20! ways.

Therefore, the number of favorable outcomes is 20!

Now, let's calculate the probability:

Probability = Number of favorable outcomes / Total number of outcomes

Probability = 20! / 22!

To simplify this expression, we can cancel out common factors:

Probability = (20!)/(22×21×20!) = 1/ (22×21) = 1/462

Therefore, the probability that you are not one of the first two singers in the karaoke contest is 1/462.

Answer:

£34.45

Step-by-step explanation:

Paul,colin and brian are waiters. One night the restaurant earns tips totalling £77.50.They share the tips in the ratio 1:3:5.

The sum of their Proportion is

1 + 3 + 5 = 9

For Brain

5/9 × £77.50 = £43.06

For Paul

1/9 × £77.50 = £8.61

Hence:

How much more does brian get over Paul?

This is calculated as:

£43.06 - £8.61

= £34.45

Given:

Principal value = $6520

Annual rate of interest = 2.5% compounded continuously.

Time = 3 years

To find:

The amount of money after three years.

Solution:

Formula for the value of the amount is:

\(V=Pe^{rt}\)

Where V is the value of the account in t years, P is the principal initially invested, e is the base of a natural logarithm, and r is the rate of interest.

Putting \(P=6520,r=0.025,t=3\), we get

\(V=6520e^{(0.025)(3)}\)

\(V=6520e^{0.075}\)

\(V=7027.80466\)

\(V\approx 7027.80\)

Therefore, the amount of money after three years is about $7027.80.