MATHEMATICS HIGH SCHOOL

Hii pls help i’ll give brainliest if you give a correct answer tysm

Answers

Answer 1

Answer:

Equations ; 1, 3 , 5 and 6 are correct

Step-by-step explanation:

From the question, we are told that 2 1/2 feet is 5/8 of the height of the tower to be built

Now, we want to get the equation for the height of the tower

we have this as follows;

since we do not know the height of the tower, we can represent it by ?

a. 5/8 of ? = 2 1/2

b. 2 1/2 divided by ? = 5/8

c. 2 1/2 • 8/5 = ?

d. 2 1/2 divided by 5/8 = ?

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Please help me 3/5 of 7kg

Answers

The answer is 4.2 kilograms.Multiple 3/5 × 7

Arnold has shared some interesting facts about different places around the world. Use dimensional analysis to convert the units on the facts to the units requested. Be sure to show your work and include units with your answer.1. Some roads in Poland have a speed limit of 140 km/h. How fast is this in miles per minute?

2. A factory worker in Cambodia makes 320,000 Cambodian Riels per month. If 1 U.S. dollar equals 4000 Cambodian Riels, how much does the factory worker make in U.S. in dollars per year?

3. Certain members of the Italian Parliament make 180,000 euros a year. If 1 euro equals 1.36 U.S. dollars, how much do the members of parliament make in dollars per day?

4. People in Japan on average eat 3 ounces of fish per day. How many pounds of fish is this per week?

5. London Heathrow airport sees on average 191,200 passengers a day. How many passengers is this per minute?

6. An African cheetah can run at speeds up to 120 kilometers per hour. What is this speed in feet per second?

7. The town of Lloró, Colombia has an average yearly rainfall of 500 inches. On average, how many centimeters of rain does the town get each day?

Answers

Answer:

Answer.3.1/1.36 =180,000

5.6875 a week pounds

133 people per minute

120 kph =109.3613 ft<s

Kph<ft/sft/s-----------------1.097526

120

Step-by-step explanation:

The approximate answer is 3.479.

3. 1 / 1.36 = 180,000

4. 5.6875 pounds per week

5. 133 people per minute

6. 120kph= 109.3613 ft/skph -> ft/sft/s = kph_________ 1.097280ft/s =120_____ 1.097280ft/s = 109.3613.

7. The answer is approximately 3.479

Please help I’ll give brainliest

Answers

Answer:

D. 12m^3n^5

Step-by-step explanation:

Answer:

12m³n⁵

Step-by-step explanation:

3 · 4 = 12

m² · m = m³

n³ · n² = n⁵

Therefore, 3m²n³ · 4mn² = 12m³m⁵

Evaluate the related series,of each sequence

-9,-16,-23,-30,-37,-44

Answers

I think its just that the series decreases by 7 from n-1 to n

Describe this pattern. Then see if you can think of another Pythagorean triple that doesn't follow the pattern you just described and that can't be generated using the identity (x2 − 1)2 + (2x)2 = (x2 + 1)2. Explain your findings. x-value Pythagorean Triple 7 (14,48,50) 8 (16,63,65) 9 (18,80,82) 10 (20,99,101)

Answers

Answer:

See explanation

Step-by-step explanation:

A Pythagorean triple is a set of 3 positive integer numbers, a, b, and c which satisfies the Pythagorean theorem: $c^2=a^2+b^2$

Given the identity: $(x^2 - 1)^2 + (2x)^2 = (x^2 + 1)^2.$

We verify that the numbers given table are Pythagorean triples.

$14^2+48^2=2500=50^2\n16^2+63^2=4225=65^2\n18^2+80^2=6724=82^2\n20^2+99^2=10201=101^2$

Next, we examine the pattern:

$\left|\begin{array}{c|c|c|c|c}x-value&x^2-1&2x&x^2 + 1&$Triple\n--&--&--&--&----\n7&48&14&50&(14,48,50)\n8&63&16&65&(16,63,65)\n9&80&18&82&(18,80,82)\n10&99&20&101&(20,99,101)\end{array}\right|$

From the pattern, our first number is 2x, the second number is x² - 1, and the third number(hypotenuse) is x² + 1

Next, we show that (x² - 1)² + (2x)² = (x² + 1)² is an identity

$LHS: (x^2 - 1)^2 + (2x)^2 \n= (x^2-1)(x^2-1)+2x^2\n=x^4-2x^2+1+4x^2\n=x^4+2x^2+1$

$RHS: (x^2+1)^2\n= (x^2+1) (x^2+1)\n=x^4+2x^2+1$

Since Left Hand Side=Right hand Side. For all x, the equation is always true.

Therefore, the pattern is true for any Pythagorean triple.

Of the runners in a marathon through northeastern Pennsylvania, 94.12% finished the race. If 2,125 runner started the race, how many finish the race?

Answers

To find a percentage of a number, multiply the number by the decimal version of the percent.

For 94.12%, the decimal form is 0.9412 (because 94.12% really means 94.12 out of 100).

So, to find 94.12% of 2125, multiply the decimal form by the number:

2125 × 0.9412 =2000.05, so 2000 people finished the race.

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