En un triángulo rectángulo, un ángulo exterior mide 120. ¿Cuánto miden los ángulos
agudos internos de dicho triángulo?

Answer:

Here is your answer!

Sorry I'm late but hopefully I can help others when looking for answers.

Step-by-step explanation:

Brainlist? :)

Answer:

1,000,000 400,000 70,000 8,000 900 8

Step-by-step explanation:

you just break it down per number place (millions, hundred thousands, ten thousands, thousands, hundreds, tens, then ones)

Step Guide:

Step 1: Place your compass at W and extend it to X.

Step 2: Using the same length, place your compass at P and mark an arc.

Step 3: Using the straightedge, draw a line from P to meet the arc.

Step 4: Label the point of intersection of the line and the curve Q.

This gives segment PQ that is congruent to WX,

Answer:

126

Step-by-step explanation:

Answer:

i think it might be A

Step-by-step explanation:

The trigonometric function we need to evaluate is:

This function is given by:

In the unit circle, graphically these measures are given by:

Then, the cosecant will be undefined when the opposite side (y-value) is equal to zero, so let's check the given angles:

And we can't find the exact value of csc 315, but with a little help from the unit circle, we can observe that the opposite side measures a value different than 0:

So, the answer is 0°.

The samples are normally distributed and have equal variances. If these assumptions are not met, alternative tests such as the Mann-Whitney U test or the Welch's t-test may be more appropriate.

To test whether people in Texas read more books than people in Colorado, a two-sample t-test would be appropriate.

The reason for choosing a two-sample t-test is that we are comparing the means of two independent samples (Texas and Colorado), and we want to determine if the difference between these means is statistically significant or if it could be due to random chance.

To understand whether the difference in means is statistically significant, we can calculate the t-statistic and compare it to the critical value from the t-distribution with degrees of freedom equal to the sum of the sample sizes minus two (df = n1 + n2 - 2). If the calculated t-statistic is greater than the critical value, we can reject the null hypothesis that the means are equal and conclude that there is a statistically significant difference between the means.

We can also calculate the p-value associated with the t-statistic and compare it to the significance level (usually 0.05). If the p-value is less than the significance level, we can reject the null hypothesis and conclude that there is a statistically significant difference between the means.

It's important to note that in order to perform a two-sample t-test, we need to assume that the samples are normally distributed and have equal variances. If these assumptions are not met, alternative tests such as the Mann-Whitney U test or the Welch's t-test may be more appropriate.

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Answer:

d = st, d = 100 x 3

Step-by-step explanation:

distance = speed x time

distance = 100 x 3, therefore, distance = 300, but if you just want the equation, it is d = 100 x 3 or d = st

Step-by-step explanation:

d = 100 x 3.

d= 100n

where n = time the journey took.

Answer:

1.9 feet = 19/10 feet = 1-9-10 feet

(I provided the answer as a regular number, as a mixed number, and as an improper fraction.  Feel free to use whichever feels best to you).

Step-by-step explanation:

We can find the remaining amount of string by subtracting the amount of string used from the total amount of string.

Since Jason used 2 2/5 feet of string and started with 4 3/10 feet of string, we subtract 2 2/5 from 4 3/10.

Step 1:  We can subtract improper fractions by subtracting the whole numbers and the fractions themselves.  Then, we can combine the result at the end:

(4 - 2) + (3/10 - 2/5)

2 - (5/50)

2 - 1/10

1.9

Step 2:  When we convert 1.9 into a mixed number, we get 1 9/10 (in the form you used, it's 1-9-10).

As a mixed number, it's 19/10

The calculated area of the cross-section is 14 square inches

from the question, we have the following parameters that can be used in our computation:

The prism (see attachment 1)

When a vertical plane intersects the vertex and the shorter edge of the base, the shape formed is a triangle with the following dimensions

Base = 7 inches

Height = 4 inches

See attachment 2

So, we have

Area = 1/2 * 7 * 4

Evaluate

Area = 14

Hence, the area of the cross-section is 14 square inches

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Answer:

Since the slope of the line is (31/4 - 25/4) / (5/4 - 3/4) = 3 that means that for every 1 that x increases, y increases by 3 so an example could be 1 3/4 for x and 9 1/4 for y.

Answer:

Yes

Step-by-step explanation:

1/7 = 0. 142857, where the bar over 142857 indicates a pattern that repeats forever. A real number that cannot be expressed as a quotient of two integers is known as an irrational number.

Answer:

the value of x to the nearest tenth is 12 * x

The percentile score of 71 on test score is 27 and the score of victor is 71.

Statistics is the science concerned with developing and studying methods for collecting, analyzing, interpreting and presenting empirical data.

Given, the teacher recorded unit 4 test scores from class.

The scores are: 5,4,66,70,71,75,77,80,84,85,87,90,93,95 and 96.

A percentile is a value on a scale of one hundred that indicates the percent of a distribution that is equal to or below it.

The percentile rank of a score of 71 on the test is find by formula

\(R_{100} =\frac{100(N < )+\frac{1}{2} }{N}\)

=100×4+1/2(1)/15

=400+0.5/15

=400.5/15

=26.7=27th

Now we need to find the score of victor who has 60th percentile.

60=Score/15

score=71

Hence, the percentile score of 71 on this test score is 27 and the score of victor is 71.

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The 1930s was a period of significant change in the U.S. entertainment industry, with the emergence of new technologies and the development of new forms of media. Here are some of the key changes that took place:

Overall, the 1930s was a period of significant change in the U.S. entertainment industry, with the rise of new technologies and the emergence of new forms of media leading to the development of new genres and changing audience preferences.

Answer:

480

Step-by-step explanation:

So we have the expression:

\(-8(2z-70)\)

And we want to evaluate it for z=5 and c=2:

So:

\(=-8(2(5)-70)\)

Multiply within the parentheses:

\(=-8(10-70)\)

Subtract within the parentheses:

\(=-8(-60)\)

Multiply:

\(=480\)

Answer:

480

Step-by-step explanation:

-8( 2(5) - 70)

-8 ( 10 - 70)

-80 + 560

480

Lulu's mum mixes 360 ml of water with 210 ml of plant food. Each plant will receive 95 ml of mixture.

To find out how much of the mixture Lulu's mum pours onto each plant, we need to first find out the total amount of mixture in the watering can, and then divide that by the number of plants.

Step 1: Find the total amount of mixture in the watering can.
We know that Lulu's mum pours 210 ml of plant food into the watering can. She also adds 150 ml more water than plant food, so she adds 210 ml + 150 ml = 360 ml of water.

The total amount of mixture in the watering can is therefore 210 ml + 360 ml = 570 ml.

Step 2: Divide the total amount of mixture by the number of plants.
We know that there are 6 plants, so we need to divide the total amount of mixture by 6.

570 ml / 6 = 95 ml.

Therefore, Lulu's mum pours 95 ml of the mixture onto each plant.

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Answer:

16

Step-by-step explanation:

b=16

Following the pattern, we can assume that each term adds by 1. So 15+1 = 16.

Mine is not heating up I don't know about others

Answer:

3√15

Step-by-step explanation:

x=y

x^2+x^2 = 9*30

2x^2 = 270

x^2 = 9*15

x = y = 3√15

Answer:

-14.4, -6.8, 23/4, -1.9, 0, 5.4

Step-by-step explanation

lowest to highest

Answer:

-14.4, -6.8, 0, |-1.9|, 5.4, |-23/4|

Step-by-step explanation:

When a number is in absolute value brackets, it will always be positive. This makes |-1.9| 1.9 and |-23/4| 5.75. You can then sort them out starting from negative to 0 to positive numbers.

Answer:

239 miles per gallon for a round trip.

Step-by-step explanation:

you'd need to achieve 238,900 / 2000 = 119.5 miles per gallon for a one way trip,

The observed change in beak characteristics can be explained through the concepts of competition, survival of the fittest, and inheritance.

In an environment with limited resources, birds with different beak shapes compete for food. This competition leads to the survival of the fittest, where only individuals with beak shapes best suited for accessing available food sources will survive and reproduce.

This advantageous trait (the suitable beak shape) is then inherited by their offspring, ensuring the continuation of the successful trait in future generations. Over time, this process results in the prevalence of the advantageous beak shape within the population.

The observed change in beak characteristics can be explained by the concepts of competition, survival of the fittest, and inheritance.

As a result of competition for limited resources such as food, birds with beaks that were better suited to their environment were more likely to survive and reproduce. This is known as survival of the fittest. Over time, these advantageous beak characteristics were inherited by their offspring, leading to a shift in the overall beak characteristics of the population.

Therefore, the observed change in beak characteristics is a result of natural selection acting on inherited traits that allowed for better survival and reproduction in a competitive environment.

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The  volume of the largest right circular cone that can be inscribed in a sphere of radius r is  8/27 (volume of sphere)

Let r serve as the foundation. the volume of the area, and radius x is the separation between the base and the sphere's center. Height h of the cone = R + x

∴    V= 1/3πr² h= π/ 3 (R² −x²)(R + x)

       = π/3​ (R² + R² x − Rx² −x² )

∴   dV/ dx​ = π​ /3 [R²−2Rx−3x² ]

  d²V/ dx²​ = π/3​ [−2R−6x]

For max or min V dV/dx​ =0

∴   R² −2Rx−3x² =0

⇒(R + x)(x−3x)=0    

2) x=−R, x​/3 but x = −R

When x= R/3 d² V/dx² <0  V is max only when x= R/3

​∴   Max V= 1/3π(R² − R²/9 )(R+ R/3 )

= 32πR³/81

= 8/27 ( 4/3 πR³)

= 8/27 (volume of sphere)

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Answer:

1.99

Step-by-step explanation:

Pi is 3.14

So result is 1.99

A one-way ANOVA is a statistical test used to compare the means of four populations in this case. Thus, the degrees of freedom for the F-statistic in this one-way ANOVA are (df1, df2) \(= (3, 78)\).

The degrees of freedom are essential for calculating the F-statistic, which helps determine whether there are significant differences among the population means.

To calculate the degrees of freedom for the F-statistic, we need to determine the numerator degrees of freedom (df1) and the denominator degrees of freedom (df2). For df1 (numerator degrees of freedom), it is equal to the number of populations (groups) minus 1.

In this case, there are four populations,

So: df1 \(= 4 - 1 = 3\)

For df2 (denominator degrees of freedom), it is equal to the total sample size (N) minus the number of populations (groups).

The total sample size is given as \(18 + 22 + 20 + 22 = 82\).

So: df2 \(= 82 - 4 = 78\)

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To solve this problem, we can use the formula:

Q = mcΔT

where Q is the heat energy transferred, m is the mass of the water, c is the specific heat capacity of water (4.184 J/g°C), and ΔT is the change in temperature.

For the first part of the problem, we can use the formula to find the freezing point of the tap water:

Q1 = mcΔT1

where ΔT1 = 98°C - 60°C = 38°C

We assume that the mass of the water is the same in all experiments and in Dr. Woods' test, so we can use the same value of m throughout.

Q1 = mcΔT1 = m(4.184 J/g°C)(38°C)

Q1 = 1593.792 J

Each of the 3 other experiments raised the temperature of the water by 12.5°C, so the total change in temperature is:

ΔT2 = 12.5°C x 3 = 37.5°C

The heat energy transferred in these experiments is:

Q2 = mcΔT2 = m(4.184 J/g°C)(37.5°C)

Q2 = 1566.9 J

The total heat energy transferred before the water freezes is:

Q = Q1 + Q2 = 1593.792 J + 1566.9 J = 3160.692 J

We can now use the formula to find the freezing point of the tap water:

Q = mcΔTf

where ΔTf = T - 0°C

Assuming the same mass of water as before, we get:

3160.692 J = m(4.184 J/g°C)(60°C - 0°C)

m = 18.995 g

ΔTf = T - 0°C = 3160.692 J / (18.995 g x 4.184 J/g°C) ≈ 40°C

So, the freezing point of the tap water is approximately 40°C, which is 8 degrees higher than the normal freezing point of water (0°C).

For the second part of the problem, we can use the same formula to find the boiling point of the tap water:

Q = mcΔTb

where ΔTb = 100°C - T

Assuming the same mass of water as before, we get:

Q = mcΔTb = m(4.184 J/g°C)(99.25°C)

Q = 4158.83 J

4158.83 J = m(4.184 J/g°C)(T - 0°C)

T = 100°C + 4158.83 J / (18.995 g x 4.184 J/g°C) ≈ 116°C

So, the boiling point of the tap water is approximately 116°C, which is 16 degrees higher than the normal boiling point of water (100°C).

The following are the zeros for the function h (x) = x2 + 3x - 8: - x= -4 and x=2.

Given a collection of inputs X (domain) and a set of potential outputs Y (codomain), a function is more technically defined as a set of ordered pairings (x,y) where xX and yY with the caveat that there can only be one ordered pair with the same value of x. The function notation f:XY can be used to express that f is a function from X to Y.

The function's zero is a value of x that makes it equal to zero. In other words, the equation f(x) = 0 leads to a zero.

By putting h(x) equal to zero and figuring out x, we may determine the zeroes for the function h(x) = x2 + 3x - 8.

h(x) = x² + 3x - 8 = 0

We may factor the left side of the equation to find x:

x² + 3x - 8 = (x-2)(x+4) = 0

We set each factor to zero and solve for x to discover the zeroes:

x-2 = 0 or x+4 = 0

x = 2 or x = -4

Consequently, the function's zeros are x = 2 and x = -4.

So, A is the right response. x = -4 and x = 2

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The complete question is

What are the zeros of the function h (x) = x² + 3x - 8?

A. x = -4 and x = -2

B. x= -8 and x = 2

C. x = -2 and x = 8

D. x = 2 and x = 8