find tangent of angle a​

Answer:

9

Step-by-step explanation:

if their nine pieces nine apples

hope im right!

Answer:

didn't you already do it? im confused

Step-by-step explanation:

Are 5 ways for four people with different heights to line up single-file so that exactly two people are taller than the person immediately behind them.

Let's call the four people A, B, C, and D, and let's assume that their heights are distinct and that A is the shortest. Then, there are 3! = 6 ways for them to line up single-file without any restrictions on their heights. However, this counts the cases where A is taller than B, which is not allowed.

To correct for this overcounting, we can subtract the number of ways where A is taller than B, which is 2! = 2, since there are 2! ways to arrange B, C, and D in this case.

However, this also subtracts the case where A is taller than both B and C, which is not allowed.

So, we need to add the number of ways where A is taller than both B and C, which is 1, since there is only 1 way to arrange B, C, and D in this case. Therefore, by PIE, the number of ways for A, B, C, and D to line up single-file so that exactly two people are taller than the person immediately behind them is:

6 - 2 + 1 = 5

So, there are 5 ways for four people with different heights to line up single-file so that exactly two people are taller than the person immediately behind them.

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Answer:

8.5°

Step-by-step explanation:

25 + (-8)

=25 - 8

=17 ÷ 2

= 8.5°

Answer: 80

Step-by-step explanation:

\(5(9+7)\\\\Parenthesis\\\\5(16)\\\\Multiply\\\\80\)

Hope it helps <3

A system of n number of linear equations in n unknowns has an many number of solutions if the coefficients of matrix is unique. The assertion is always accurate. The given statement is always true.

From the question, the given statement is:

A system of n linear equations in n unknowns has an endless number of solutions if the matrix of coefficients is unique. The assertion is always accurate.

The given statement is always true.

Consider the system of equations Ax = b. If A is single, there is no A-inverse. As a result, there is no one approach to solve the system. Then, there are still two options:

We can't tell which condition is right only examining the matrix [A b]. There exists an endless number of solutions if [A b] is equal to A's rank.

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Answer:

19/90

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

If I’m understanding you correctly, the answer would be nine.  Any number with a 9 in the one’s place (unit digit) would still have a nine in that place after being cubed.

29³=24,389

69³=328,509

Answer:

Step-by-step explanation:

unit digit of cube of any number will be the unit digit of its last digit

the unit digit of the cube of a number ending with 9 is 9

ex : unit digit of 29³= unit digit of 9³=unit digit of 729 =9

Answer:

200 candles

Step-by-step explanation:

20*10 = 200

Answer:

I am not sure.. But I guess it is option D

Step-by-step explanation:

Answer:

the 4th answer

Step-by-step explanation:

well, any negative number up to leading to a 0 in the denominator will create a result <= 0.

because the numerator with x² will be positive. and the denominator with x will be negative.

so, it has to be the third or the fourth answer.

but then the 3rd answer includes -infinity in the interval ("["). and that cannot be right.

so, it leaves the 4th answer as the only possible right answer.

just as an additional quick check : large positive numbers for x will always create posits results for this fraction, so the 1st and 2nd answers do not fulfill the <=0 condition.

The problem presents a choice between receiving $22,000 in 20 years or $820 today. We are asked to determine the present value of $22,000 using a discount rate of 18 percent and determine which offer is more favorable. It would be more advantageous to choose the $820 offer today rather than waiting for $22,000 in 20 years

a-1. To calculate the present value of $22,000, we can use the formula for present value (PV) which is given by PV = FV / (1 + r)^n, where FV is the future value, r is the discount rate, and n is the number of periods. Plugging in the values, we have PV = $22,000 / (1 + 0.18)^20. Evaluating this expression, we find the present value to be approximately $1,779.82.

a-2. Comparing the present value of $22,000 ($1,779.82) to the immediate offer of $820, we can see that the present value is significantly lower. Therefore, based on financial calculations, it would be more advantageous to choose the $820 offer today rather than waiting for $22,000 in 20 years.

Note: It is important to consider that financial decisions may involve various factors and considerations beyond the scope of this analysis, such as individual financial goals, risk tolerance, and alternative investment opportunities.

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On solving the provided question, we can say that by equation

30 tons of veggies were sold on the first day, 33 tons on the second day, and 35 tons on the third day.

An equation is a mathematical formula that connects two assertions using the equal sign (=) to denote equivalence. In algebra, an equation is a mathematical statement that establishes the equivalence of two mathematical expressions. For instance, an equal sign separates the components 3x + 5 and 14 in the equation 3x + 5 = 14. A mathematical formula is used to explain the connection between two sentences on either side of a letter. Frequently, there is just one variable, which is also the symbol. for example, 2x - 4 = 2.

x = amount (ton) of vegetables sold on day one; y = amount (ton) of vegetables sold on day two. Z = the amount of vegetables sold on the third day (in tons).

\(x=y-3\\z=(5/9)*(x+y)\\x+y+z=98\\x+y+[(5/9)*(x+y)]=98\\ 9x+9y+5x+5y=882\\14x+14y=882\\x=y-3\\14x+14y=882\)

solution

\(x=30\\y=33\\x+y+z=98---- > z=98-(x+y)---- > z=98-63--- > 35\)

30 tons of veggies were sold on the first day, 33 tons on the second day, and 35 tons on the third day.

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We have 125 = 5³ and 1/5 = 0.2. Then

1/125 = (1/5)³ = 0.2³ = 0.008

so that

4  27/125 = 4 + 27 • 0.008

… = 4 + 0.216

… = 4.216

Answer:

Step-by-step explanation:

We have been given a mixed fraction - 4 .

there are 4 wholes of 125 and remaining 27. then numerator is equal to 125 x 4 + 27 = 527.

then the improper fraction is .

To write as a decimal , the denominator should be a power of 10. denominator 125 can be multiplied by 8 to get a power of 10.

125 x 8 = 1000. both numerator and denominator should be multiplied by 8

now to write as a decimal, 4216 has been divided by 1000.

when dividing by a power of 10, the decimal point should move to the left.

when dividing by 1000, the decimal point should move 3 decimal places to the left. the decimal point of 4216 is after 6, when it moves 3 places to the left its between 4 and 2. Therefore answer is 4.216, PLEASE, can you give me the brainlies

Answer:

Plot the point on 1

Step-by-step explanation:

Answer: 1

Step-by-step explanation: There are 10 space on the number line between the two pts. Since we are finding a 1:4 ratio we will need to divide these 10 space by 5.

\(10/5=2\)

Which means that the point is two spaces away from T. Which is point 1 on the number line.

Answer:

The answer is less than or equal to -27

Step-by-step explanation:

This is because -27 divided by 3 is -9 and double that is -18. And it can be equal than that or less than because it says at most -18.

Answer:

\(5(x - 2) = \frac{15x + 6}{3} - 12 \\ 5(x - 2) = \frac{15x + 6 - 36}{3} \\ 5(x - 2) = \frac{15x - 30}{3} \\ 5(x - 2) = \frac{15(x - 2)}{3} \\ 15(x - 2) = 15(x - 2)\)

Answer:

All real numbers

Step-by-step explanation:

Given

5(x - 2) = \(\frac{15x+6}{3}\) - 12

Multiply through by 3 to clear the fraction

15(x - 2) = 15x + 6 - 36 ← distribute left side and simplify

15x - 30 = 15x - 30

Since both sides are equal then any real value of x will be a solution.

Thus the solution is All real numbers

Answer: 5, | 4 |, | -1 |, -2

Answer:

0, l-1l, l-2l, l4l, 5

Step-by-step explanation:

The absolute value bars l l, turn any negative number positive and any positive number remains positive.

It is correct to say that any point on the perpendicular bisector of a segment is equidistant from the endpoints of the segment.

Any point on the perpendicular bisector of a segment is equidistant from the endpoints of the segment. What is a perpendicular bisector? A perpendicular bisector is a line that intersects a line segment and forms a 90-degree angle. It divides the line segment into two equal halves.Each point on the perpendicular bisector of a line segment is equidistant from the endpoints of the segment. This means that the distance from any point on the line to one endpoint of the segment is the same as the distance to the other endpoint of the segment.

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Figure C is the only angle that falls within the Range of 91 to 179 degrees.

An obtuse angle is an angle that measures between 91 and 179 degrees. Therefore, the correct answer is (c) Figure C. An obtuse angle is larger than a right angle (90 degrees) and smaller than a straight angle (180 degrees).

Figure A is a right angle measuring 90 degrees, which is smaller than an obtuse angle. Figure B is an acute angle measuring less than 90 degrees, which is also smaller than an obtuse angle. Figure D is a straight angle measuring 180 degrees, which is larger than an obtuse angle.

Figure C is the only angle that falls within the range of 91 to 179 degrees, making it the correct answer to the question.

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Answer: 80 feet

Step-by-step explanation:

We can write these as fractions and do cross multiplication with the numerator being the height of the object while the denominator being the length of the shadow:

5 * 128 = 8x

640 = 8x

80 = x

Thus, the height of the lighthouse is 80 feet tall.

A race car driver is 3.79 km away from where she started.

Assume that a race car driver turns southwest, at an angle of  45 degrees.

Also she turns East making another 45 degree angle.

So, we get a right triangle.

Let ABC be right triangle with A = 90°, B = 45° and C = 45°

For right triangle ABC, a = 2.75km, b = y km and c = x km (the distance she has traveled east before crossing her northern path)

Consider the sine of angle B

sin(B) = Opposite side of angle B / Hypotenuse

sin(45) = x / 2.75

x = 1.94

sin(C) = Opposite side of angle C / Hypotenuse

sin(45) = y/2.75

y = 1.94

So, the distance to north before paths crossed would be,

N = 4.69 - y

N = 3.31

And the distance after she passed her northern path.

E = 3.89 - x

E = 1.85

Let m be the distance from Starting Point to End Point.

Using Pythagoras theorem,

m² = N² + E²

m² = (3.31)² + (1.85)²

m = 3.79 km

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Answer:

233.3 repeating mg

Step-by-step explanation:

Your teacher was really kind to give you the equation.

9x=2100

divide both sides by 9

we get x= 233.3 repeating mg

The antibiotic given in each​ dose in every 4 hours will be 233.33 mg.

It is given that a patient is given 2100 milligrams of antibiotic over a period of 36 hours.

We have to find that how much antibiotic should be given in each​ dose if antibiotic is to be given every 4 hours.

What is the unitary method?

The unitary method is a method in which we find the value of a unit and then the value of the required number of units.

As per the question ;

In 36 hours dose given is equal to 2100 milligrams.

So,

In 1 hour dose given will be = 2100 / 36

Hence ;

In 4 hours dose given will be = \(\frac{2100}{36}\) × 4

= \(\frac{2100}{9}\)

= 233.33 mg of dose in 4 hours

Thus , antibiotic given in each​ dose in every 4 hours will be 233.33 mg.

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Answer:

they are living things that get their energy by eating dead animals and plants. they break down wastes of other animals.

Step-by-step explanation:

Hopefully this helps

Answer:

14 miles

Step-by-step explanation:

Isaac is walking 14 miles because if it is seven miles to the store, he has to walk seven miles back. Seven plus seven is fourteen.

Answer:

Maggie

Step-by-step explanation:

Answer:

The slope of the line would be a. 0.

Answer:

im bad at math but i would guess the asnswer is 0.    :)

Step-by-step explanation: