100 POINTS I need help on the problem! its 8th-grade math

Answer:

The division was incorrectly solved.

Step-by-step explanation:

Given

\(\frac{2}{5} / \frac{8}{9} =\frac{5}{2} * \frac{8}{9} =\frac{5*8}{2*9} = \frac{20}{9}\)

Required

Explain why it is wrong

The solution is wrong because the division was incorrectly solved.

When fraction a/b is divided by c/d, the solution is:

\(\frac{a}{b}/\frac{c}{d} = \frac{a}{b} * \frac{d}{c}\)

It should be noted that:

\(\frac{a}{b}/\frac{c}{d} \ne \frac{b}{a} * \frac{c}{d}\)

The solution to the quotient is:

\(\frac{2}{5} / \frac{8}{9} =\frac{2}{5} * \frac{9}{8} =\frac{2*9}{5*8} = \frac{9}{20}\)

The genotype ratio is:  1   TT : 1   Tt : 0  tt

The phenotype ratio is :  4   Tall :   0   Short

100 percent of the offspring will be tall.

Genotypic ratio is the ratio between the genetic makeup among the offspring population.

On the other hand, the ratio between the offspring population for an observable characteristic is the phenotype ratio.

The given test cross is between a homozygous tall parent and a heterozygous tall parent.

Using a Punnett square,

The result will be as shown below.

                     T                   t

          T        TT                 Tt

           T       TT                 Tt

Genotype :  1   TT : 1   Tt : 0  tt

Phenotype :  4   Tall :   0   Short

100 percent of the offspring will be tall.

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Answer:

A) The quotient will be 1 17/22 which means it will be less because when dividing you get 78/44 which is then simplified and turned into a mixed number.

B) He mistake was she did the reciprocal of 13/4 instead of doing it for 11/6. So it should have been 13/4 times 6/11.

C) Correct quotient is 1 17/22 or 39/22

Answer:

19.048%

Step-by-step explanation:

The formula for the increase in cost will be :

[(New cost - Original Cost)÷Original Cost] × 100

So let's substitute values in from the question :

[(50-42)÷42] × 100

[8÷42] × 100

0.19048 × 100

19.048%

Hope this helped and have a good day

(a) Volume of Square is 1024/3.

(b) Volume of equilateral triangle is 256√3/3.

(c) Volume of semicircle is 128π/3.

(d) Volume of isosceles right triangle is 512/3.

What is volume?

A three-dimensional space's occupied volume is measured. It is frequently expressed as a numerical value using SI-derived units, different imperial units, or US customary units. Volume definition and length definition are related.

Given:

The bases of the solids are bounded by the circle x^2 + y^2 = 16.

(a) First to find the volume of square.

a. Volume

v = \(\int\limits^4_-_4\) 4(16 - x2)dx

 = 8(16x - x3/3)(0 to4 )

 = 8(64 - 64/3)

  = 1024/3.

b. Volume

v = \(\int\limits^4_-_4\)√3(16 - x2)dx

  = 2√3(16x - x3/3(0 to 4)

  = 2√3(64 - 64/3)

V = 256√3/3.

c. Volume

v = \(\int\limits^4_-_4\)π/2(16 - x2)dx

  = π(16x - x3/3)(0 to 4)

  = 128π/3

d. Volume

v = \(\int\limits^4_-_4\)2(16 - x2)dx

  = 4(16x - x3/3)(0 to 4)

V = 512/3

Hence,

(a) Volume of Square is 1024/3.

(b) Volume of equilateral triangle is 256√3/3.

(c) Volume of semicircle is 128π/3.

(d) Volume of isosceles right triangle is 512/3.

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Answer:

Step-by-step explanation:

x must be an even number from 0 to 9. So x can be

0 2 4 6 8

Answer:

0, 2, 4, 6, 8

Step-by-step explanation:

A number is divisible by 2 if the last digit is even

Possible digits are: 0, 2, 4, 6, 8

Answer: If the dog can fit in there it’s not a problem u don’t need to know the inches that’s what she said

Step-by-step explanation:

Answer:

i dont know this it is hard

Step-by-step explanation:

Answer:

Step-by-step explanation:

Oliver's number is bigger than that of Chen.

It is a number equal to 10 times 10.

Given is that Oliver and Chen both write down a number. Oliver says, my number has 8 hundreds and Chen's number only has 3 hundreds, my number must be bigger.

Oliver number can be written as follows -

8 x 10 x 10

Chens number can be written as follows -

3 x 10 x 10

It can be concluded that Oliver's number is bigger than that of Chen.

Therefore, Oliver's number is bigger than that of Chen.

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Answer:

D. 0.33

Step-by-step explanation:

To solve this question, we use Venn probabilities.

I am going to say that:

Event A: Ordered fish of the day.

Event B: Are wearing a tie.

Of 60 diners in a restaurant, 15 ordered the fish of the day

This means that \(P(A) = \frac{15}{60}\)

7 are wearing a tie.

This means that \(P(B) = \frac{7}{60}\)

Of the diners who ordered fish, 2 are wearing a tie.

This means that \(P(A \cap B) = \frac{2}{60}\)

Which is the probability that one of the diners ordered the fish or is wearing a tie?

This is:

\(P(A \cup B) = P(A) + P(B) - P(A \cap B)\)

Replacing with the values we have:

\(P(A \cup B) = \frac{15}{60} + \frac{7}{60} - \frac{2}{60} = \frac{15 + 7 - 2}{60} = \frac{20}{60} = 0.33\)

The correct answer is given by option d.

266.605 is the answer.

Step-by-step explanation:

70.6 + 74.02 + 121.985 = 266.605

To find the limit of a convergent sequence, we can simply take the limit as n approaches infinity. Let's calculate the limits for each of the given sequences:

A. \(\sf\:\lim_{n \to \infty} \frac{5n}{n+7} \\\)

To find the limit, we divide the leading terms by n:

\(\sf\:\lim_{n \to \infty} \frac{5n/n}{(n+7)/n} = \frac{5}{1} = 5 \\\)

Therefore, the limit of the sequence A is 5.

B. \(\sf\:\lim_{n \to \infty} \frac{4-7n}{8+n} \\\)

Again, divide the leading terms by n:

\(\sf\:\lim_{n \to \infty} \frac{4/n - 7}{8/n + 1} = \frac{0 - 7}{0 + 1} = -7 \\\)

So, the limit of sequence B is -7.

C. \(\sf:\lim_{n \to \infty} \frac{8n - 500\sqrt{n}}{2n + 800\sqrt{n}} \\\)

Divide the leading terms by n:

\(\sf\:\lim_{n \to \infty} \frac{8 - 500\sqrt{n}/n}{2 + 800\sqrt{n}/n} \\\)

As n approaches infinity, the terms involving \(\sf\:\sqrt{n}/n \\\) tend to 0:

\(\sf\:\lim_{n \to \infty} \frac{8 - 500(0)}{2 + 800(0)} = \frac{8}{2} = 4 \\\)

Therefore, the limit of sequence C is 4.

To summarize:

A. The limit of sequence A is 5.

B. The limit of sequence B is -7.

C. The limit of sequence C is 4.

The difference between 126 1/4 and 78 7/12 is 143/3 or 47 2/3.

To find the difference between the numbers simplify means;

to subtract 78 7/12 from 126 1/4 .

126 1/4 - 78 7/12

First, convert the mixed fractions into improper fractions.

( 126 × 4 + 1 )/4 - ( 78 × 12 + 7) /12

505/4 - 943/12

Multiply first term by 3/3 which is the same as 1.

( 505/4 × 3/3 ) - 943/12

1515/12 - 943/12

( 1515 - 943) / 12

572 / 12

143/3 or 47 2/3.

Therefore, the difference is 143/3 or 47 2/3.

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Answer:

Step-by-step explanation:

Since h(x) represents y, to solve this problem, we have to find all the x values that make the y positive. The best way to do this, is to mark the intercepts and see which intervals make y positive. (It sounds confusing but it isn't very.)

Take a look at the image below. The red represents x<0, the blue represents 0<x<3.5, and the green represents x>3.5. If we take a look at the shape of the graph we can see that the y coordinates are positive in the green and red range as the graph goes above the x-axis. Therefore the h(x)>0 when x<0 or when x>3.5. Now figure out which one of the answers lie in that range! Comment if you need help.

SIDE NOTE: I realize that this was unnecessary to solving the problem as a simple guess and check would have worked but I thought it would be beneficial for you to know how to solve these types of problems in general.

DOUBLE SIDE NOTE: I also realize that the intercept may not be exactly 3.5 as it doesn't state it in the problem, but for explanation's sake, I made that assumption. SORRY IF IT CONFUSED YOU.

Hope this was helpful!!!

From the illustration above, we have a hexagon ABCDEF.

Angle FAB will be an inscribed angle.

The definition of an inscribed angle is an angle in which the vertex touches the circle.

In this case, the vertex of angle FAB is A which touches the circle.

The equation that represents how many pages Shinji reads is P(n) = 25n

The given parameters are:

25 pages = 1 night

Multiply both sides by n

So, we have:

25 * n = 1 * n nights

Express as a function

25 * n = P(n)

Rewrite as

P(n) = 25n

Hence, the equation that represents how many pages Shinji reads is P(n) = 25n

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Answer:

Step-by-step explanation:

Answer:

Hannah's dog is 52 pounds

Step-by-step explanation:

Ava's = 20.8

Hannah's = 20.8 x 2.5

20.8 x 2.5 = 52

52 pounds

Hope this helps!

Answer:

Hannah dog is 23.3 pounds.

Answer:

∠E = tan

∠D = tan

Step-by-step explanation:

Common sense, only perpendicular and base is present.

Answer:

59÷4

you will find the answer

Answer:

The answer is C

Step-by-step explanation:

c.  8√(2^4 )

given 2^(4/8)  can be written as 2^(4×1/8)  

eg: 2^(1/2) is √2 hence same rule we can apply here and since 2^(1/8) we can write as 8√2 and given 2^4

further knowledge: so if asked to expand more we can write it as 8√16 simplifying this further we get 2^(1/2) which is actually √2

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Answer:

Step-by-step explanation:

125.

Answer:

a car that is full

Step-by-step explanation:

Answer:

mm definitely a car that is full

Step-by-step explanation:

Answer:

-10

Step-by-step explanation:

well you know that

\((-)(-)=(+)\)

so we have

\(-21-(-11)\\\\=-21+11\\\\=-10\)

Answer:

false is the correct answer right

Answer:

wala akong pake

Step-by-step explanation:

walaa ako paki

The equation of the line with y-intercept (0,1) which passes for thought the point (1,1) is: y = 1.

The slope-intercept form of the equation of a line is y = mx + b, where m is the slope of the line and b is the y-intercept.

If the y-intercept is (0,1), then b = 1.

If the line passes through the point (1,1), then we can use the point-slope form of a line, which is (y - y1) = m(x - x1) where (x1, y1) is a point on the line and m is the slope of the line.

Knowing that the slope (m) = (y2 - y1)/(x2 - x1) = (1-1)/(1-0) = 0, then we can substitute and get the equation, y = 1, the line is a horizontal one with the y = 1.

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