early algebra pls help!!

Answer:

a) Height = OC = 13.3cm

b) Perimeter = 48.4cm

Step-by-step explanation:

a) Given:

ODC is a right angle triangle and

ABCD is part of it.

AB = 6 cm

CD = 15 cm

BC = 8 cm

∠BCD = 90 degrees

AB is parallel to DC

Find attached the diagram obtained from the given information.

From the diagram, ∆OAB is similar to ∆ODC.

∠OBA = ∠OCD = 90 degrees

To find the height, we would apply the similar triangles theorem.

The ratio of corresponding sides are equal and the angles are congruent.

OB/BA = OC/CD

OC = OB+BC = OB+8

OB/6 = (OB+8)/15

15OB = 6(OB+8)

15OB = 6OB + 48

9OB = 48

OB = 48/9 = 16/3

OC = 16/3 + 8

OC = 13⅓ cm = 13.3cm

Height = OC = 13.3cm

b) To get perimeter, we have to first determine OD (the hypotenuse of ∆OCD) as it is a right angled triangle

Using Pythagoras theorem

Hypotenuse ² = opposite ² + adjacent ²

OD² = OC² + CD²

OD² = (13⅓)² + 15²

OD² = 1600/9 + 225 = 3625/9

OD = √(3625/9)

OD = 20.1

Perimeter of ∆ODC= OC + CD + OD

= 13.3 + 15 + 20.1

Perimeter = 48.4cm

Answer:

990

Step-by-step explanation:

9900 * 10/100

= 990

Hello there!

First, divide by 100:

99

Now, multiply by 10:

990 is the answer.

Hope it helps!

~Just a determined gal

#CarryOnLearning

\(MysteriousNature\)

Answer:

C. \(6+z=44\Rightarrow z=38\ \text{inches}\)

Step-by-step explanation:

The plant has initial length of \(6\ \text{inches}\)

Let the height it grew after the \(6\ \text{inches}\)  be \(z\)

So total height it grows would be \(6+z\)

The total height of the plant is \(44\ \text{inches}\)

So we get

\(6+z=44\\\Rightarrow z=44-6\\\Rightarrow z=38\ \text{inches}\)

The equation that models the situation is

\(6+z=44\Rightarrow z=38\ \text{inches}\)

Answer:

120 cm^2.

Step-by-step explanation:

The area of one triangle = 1/2 * base * height

= 1/2 * 8 * 6

= 1/2 * 48

= 24 cm^2

So area of the pentagon = 5 * 24

= 120 cm^2.

Answer: 2/9

Step-by-step explanation:

Answer:

96 cm^3

Step-by-step explanation:

you just multiply all the numbers :)

Answer:

The coordinates of the point Q is (4, 1)

Step-by-step explanation:

The given parameters are;

The directed line segment  extends from R(-2, 4), to S(18, -6)

The ratio in which the point Q partitions the directed line segment = 3:7

Therefore, the proportions of the R to Q = 3/(3 + 7) = 3/10 the length of RS

Which gives;

(-2 + (18-(-2))×3/10,  4 +(-6 -4)×3/10) which is (4, 1)

The coordinates of the point Q = (4, 1)

We check the length from R to S is given by the relation for length as follows

\(l =\sqrt{\left (y_{2}-y_{1} \right )^{2}+\left (x_{2}-x_{1} \right )^{2}}\)

Where;

R(-2, 4) = (x₁, y₁)

S(18, -6) = (x₂, y₂)

Length of segment RS  = 22.36

length from R to Q = 6.7086

We check RQ/RS = 6.7082/22.36 = 0.3

Also QS/RS = (22.36 - 6.7082)/22.36 = 0.6999≈ 0.7

The coordinates of the point Q = (4, 1).

Answer:exp(1)

Step-by-step explanation:

The system of equations is inconsistent and does not have a solution.

The given system of equations can be solved using the method of reduction. By manipulating the equations, we can eliminate one of the variables and solve for the remaining variable. In this case, by multiplying the first equation by 2 and subtracting it from the second equation, we can eliminate x and solve for y. However, the resulting equation 11 = 0 is not true, indicating that the system is inconsistent and has no solution.

The given system of equations is:

4x - 10y = -2

-2x + 40y = 11

To eliminate x, we can multiply the first equation by -2 and subtract it from the second equation:

(-2)(4x - 10y) - (-2)(-2) = -2(-2)

-8x + 20y + 4 = 4

-8x + 20y = 0

Simplifying further, we get:

-8x + 20y = 0

Now we have the equation -8x + 20y = 0, but we also have the equation -8x + 20y = 4 from the previous step. These two equations are contradictory since one implies that 0 = 4, which is not true. Therefore, the system of equations is inconsistent and does not have a solution.

In summary, the given system of equations has no solution (Option C).


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The minimum sample size need for the given condition is 14

What is Confidence Level in Statistics?

The proportion of likelihood, or certainty, that the confidence interval will include the real population parameter when a random sample is drawn numerous times is referred to as the confidence level.

Solution:

The minimum sample sixe required when,

Confidence Level = 99%

Variance = 50%

Generally going through the table

Minimum sample size is

X = 14

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Answer:

√29 =c

Step-by-step explanation:

a^2+b^2=c^2

5^2+2^2=c^2

25+4=c^2

29=c^2

√29=c

The length of the reflected line segment is approximately 11.66 units.

The endpoints of the line segment mentioned in the question are (0,5) and (6,5). After the line segment is reflected across the x-axis, the endpoints of the reflected line segment are (0, -5) and (6, -5).To find the length of the reflected line segment, we will use the distance formula.

Using the distance formula:d = √[(x₂ - x₁)² + (y₂ - y₁)²]d = √[(6 - 0)² + (5 - 5)²]d = √[36 + 0]d = √36d = 6 units. So the length of the original line segment is 6 units.Now, let's find the length of the reflected line segment.Using the distance formula :d = √[(x₂ - x₁)² + (y₂ - y₁)²]d = √[(6 - 0)² + (-5 - 5)²]d = √[36 + 100]d = √136d = 11.66 (approx) units. So the length of the reflected line segment is approximately 11.66 units.

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Answer:

B

Step-by-step explanation:

When you finish solving an equation and find the answer to be that two numbers are equal to each other when they are in fact, this means that the equation has no solutions because not values could make it true. Hpope this helps!

Answer:

I think it is B

Step-by-step explanation:

One is not considered a prime factor.

One has only a single element, which is itself, hence it is not regarded as a prime number. A prime number is a positive integer greater than 1 with just itself and the number one as its other positive divisors. Since there is only one divisor of one, one is not regarded as a prime number. Additionally, 1 does not adhere to the conventional characteristics of prime numbers and is regarded as a unit in mathematics.

For instance, a number's value is unaffected by division or multiplication by one, and it is always one when raised to any power. Since one does not meet the criteria for primes and does not share their characteristics, it is likewise excluded from the set of prime numbers.

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Answer:

The correct answer is A. 18 cm2

Answer:

146

Step-by-step explanation:

central angle is the same measure as the arc

Answer:

x = -3

Step-by-step explanation:

Answer:

Step-by-step explanation:

The required area is between 9+3 = 12 feet and 9 feet radius circles.

Find the area:

Answer:

75 miles- 3 gallons

Step-by-step explanation:

What is the gallons for 50 miles? It doesn't say...

Answer:

The number was 1/4

Step-by-step explanation:

Let the

number be x

from the question, we have

6 1/4 - x

multiplied difference;

(6 1/4 - x) 1 2/3

The

next multiplication will give;

1 2/3 * 2 4/5

= 5/3 * 14/5 = 14/3

So we have;

(6 1/4 - x) 14/3

Result is same as:

146 divided by 5 3/14

= 146 * 14/73 = 28

Thus;

(61/4 - x) * 14/3 = 28

(25/4 - x) * 1/3 = 28/14

(25/4 - x) * 1/3 = 2

(25-4x)/4 = 6

25-4x = 6(4)

25-4x = 24

25-24 = 4x

4x = 1

x = 1/4

Answer:

42.3

Step-by-step explanation:

In order to know if a triangle is a right triangle on a coordinate plane, you can find the lengths of all three sides of the triangle using the distance formula and apply the Pythagorean theorem.

Find the lengths of the three sides of the triangle using the distance formula.

Once you have the lengths of the sides, check if any of the three sides satisfy the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the other two sides. In other words, if a² + b² = c², where c is the longest side, then the triangle is a right triangle.

If one of the sides satisfies the Pythagorean theorem, then the triangle is a right triangle.

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The given series converges only when x = 0

To determine the values of x for which the series n!x⁵ⁿ converges, we can use the ratio test, which states that if the limit of the absolute value of the ratio of consecutive terms is less than 1, then the series converges, and if the limit is greater than 1, the series diverges.

Applying the ratio test to the series, we obtain |aₙ ₊ ₁ /aₙ| = |(n+1)! x⁵(n+1)/(n! x⁵)| = |(n+1)x⁵|. We simplify this expression to obtain |(n+1)x⁵|.

We then take the limit as n approaches infinity of |(n+1)x⁵|. If x is not equal to zero, this limit will approach infinity, since n+1 grows without bound as n approaches infinity, and x⁵ is a constant factor that does not affect the growth rate. In this case, the limit will be greater than 1, indicating that the series diverges.

However, if x is equal to zero, then the limit of |(n+1)x⁵| is zero, indicating that the series converges.

Therefore, the series n!x⁵n converges only when x is equal to zero.

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The result obtained when a decision alternative is chosen and a chance event occurs is known as consequence. The answer is: b.

When a decision alternative is chosen and a chance event occurs, the result is referred to as a consequence. A consequence represents the outcome or outcome state that arises from the combination of a decision and a chance event.

It is the result or effect that occurs based on the chosen alternative and the unpredictable element introduced by the chance event.

Consequences are an essential concept in decision theory and decision analysis, as they help evaluate the potential outcomes and impacts of different choices and events. By considering the consequences associated with each decision alternative, decision-makers can assess the desirability or utility of different outcomes and make informed choices.

Hence, the correct option is: b. consequence.

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Answer:

3 years

Step-by-step explanation:

Let y = number of orangutans, and let x = number of years.

For each study, the population, y, after x years is:

First study:

y = 784 - 25x

Second study:

y = 817 - 36x

We set the populations equal and solve for x, the number of years.

784 - 25x = 817 - 36x

Add 36x to both sides. Subtract 784 from both sides.

11x = 33

Divide both sides by 11.

x = 3

Answer: 3 years

Answer:

all of that for 5 points!!!???

To argue why the liberal arts are so important in education and leisure, one must discuss its Greek origin and how it is received today.

The term "liberal arts" comes from the Latin word "liberalis," which means free. It was used in the Middle Ages to refer to topics that should be studied by free people. Liberal arts refers to courses of study that provide a general education rather than specialized training. It encompasses a wide range of topics, including literature, philosophy, history, language, art, and science.The liberal arts curriculum is based on the idea that a broad education is necessary for individuals to become productive members of society. In ancient Greece, education was focused on developing the mind, body, and spirit.  

The study of the liberal arts is necessary to create well-rounded individuals who can contribute to society in meaningful ways. While the importance of the liberal arts has been debated, it is clear that they are more important now than ever before. The study of the liberal arts is necessary to develop the skills that are required in a rapidly advancing technological world.

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.

The conic section is ELLIPSE.