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3 years ago

Please help!! I will make you brainlest.

Mathematics

2 answers:

svlad2 [7]3 years ago

6 0

Answer:

Question 5: x = 12, Question 6: y = 2 $\sqrt{3}$

Step-by-step explanation:

Use the Pythagorean Theorem to calculate missing sides.

Question 5 explanation: $x^{2} + 9^2 = 15^2$ n: ⇒ $x^{2} + 81 = 225$ ⇒ $x^{2} = 144$ ⇒ $x=12$

Question 5 explanation: $y^{2}+6^2 =(4\sqrt{3})^2$ ⇒ $y^{2} + 36 = 48$ ⇒ $y^2 = 12$ ⇒ $y=2\sqrt{3}$

Law Incorporation [45]3 years ago

3 0

Answer:

5) x = 12 6) y = 3.5

Step-by-step explanation:

For number 6 that one may be right I tried several ways and kept getting that answer

5. is completely write though

Hope that helps

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Miguel has a credit card bill of $7250 with an interest rate of 16%. To pay his bill off in one year, he must make monthly payme

Tems11 [23]

Answer:

The extra amount to be paid = $ 309.15

Step-by-step explanation:

Credit card bill = $ 7250 .

Interest rate = 16 % .

<h3>AMOUNT TO BE PAID IN 1 YEAR</h3>

Monthly payment = $ 657.80

Total amount to be paid in a year = $ 657.80 × 12 = $ 7893.6

Interest amount in 1 year = $ 7893.6 - $ 7250 = $ 643.6.

<h3>AMOUNT TO BE PAID IN 18 MONTHS </h3>

Monthly payment = $ 455.71.

Total amount to be paid in a 18 months = $ 455.71 × 18 = $ 8202.78

Interest amount to be paid in 18 months = $ 952.78 .

The extra amount to be paid = $ 8202.78 - $ 7893.6 = $ 309.15

5 0

4 years ago

(I don't udnerstand, please help w/ explination as well)

12345 [234]

Answer:

A) 15 hours

B) 108 hours

C) 2073.45 miles

Step-by-step explanation:

The earth rotates fully 1 time in 24 hours. Fully rotate means that it goes through 360 degrees in 24 hours.

For this, we can set up unit ratio to solve.

<em>"If earth rotates 360 degrees in 24 hours, 225 degrees take how much time (let it be x)?"</em>

$\frac{360}{24}=\frac{225}{x}\\360x=24*225\\360x=5400\\x=\frac{5400}{360}\\x=15$

So , it takes 15 hours.

Here, the rotation is given in radian, NOT degrees. We know that 2π radians is 360 degrees, thus we can say:

<em>"If earth rotates 2π radians in 24 hours, 9π radians take how much time (let it be y)?"</em>

$\frac{2\pi}{24}=\frac{9\pi}{y}\\2\pi y=9\pi * 24\\2\pi y = 216\pi\\y=\frac{216\pi}{2\pi}\\y=108$

So, it take 108 hours.

The point on the equator is on the "outside" of the earth. So we need to figure out the circumference of the earth, given diameter is approximately 7920.

Circumference formula is C = 2πr, where C is the circumference, r is the radius (half of diameter, which is 7920/2 = 3960)

Hence

C = 2πr = 2π(3960) = 7920π

Hence, is 24 hours, a point travels 7920π miles. 2 hours is 1/12th of 24 hours, so in 2 hours the point will travel 1/12th the distance is travels in 24 hours. So:

$\frac{7920\pi}{12}=2073.45$

Thus, it will travel 2073.45 miles in 2 hours.

8 0

3 years ago

Read 2 more answers

If the discount is 36% and the sale price is $32 what was the original price

jok3333 [9.3K]

Answer:

Step-by-step explanation:

100/36= 2.77777778

2.77777778·32 = 88.8888889

8 0

3 years ago

Read 2 more answers

In the following you may leave your answer as a binomial or multinomial coefficient. In each case give a brief justification for

Simora [160]

Answer: a) 792 ways b) 13⁷.

Step-by-step explanation:

Since we have given that

Number of apples to be given = 5

Number of bananas to be given = 7

Number of people = 12

So, Number of ways that each person gets a pieces of fruit is given by

$\dfrac{12!}{7!\times 5!}\\\\=792\ ways$

b) If the number of people = 13

Number of apples to be given = 7

So, Number of ways would be

$13\times 13\times 13\times 13\times 13\times 13\times 13\\\\=13^7$

Hence, a) 792 ways b) 13⁷.

3 0

3 years ago

Find two numbers that have 2, 3, and 5 as factors. What other factors do those two numbers have in common?

Advocard [28]

To find the first number, just multiply the three numbers together.
$2*3*5 \\ 6*5 \\ 30$

To find the second number, multiply the three numbers together along with another number (this number can be anything).
$2*3*5*4 \\ 6*5*4 \\ 30*4 \\ 120$

<u>What They Have in Common:
</u><u />- All numbers will be even, since you are multiplying by 2.
- All numbers will end in a zero, since you are multiplying by 5 and also 2.

4 0

4 years ago