3 years ago

Can Someone help me As Soon As Possible Please

Mathematics

1 answer:

kenny6666 [7]3 years ago

4 0

Answer:

1. 15

2. 18

3. 30

4. 3

5. 6

6. 24

7. 14

8. 28

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two airplane fly toward each other from points 900 miles apart, at the rate, per hour, of 300 miles and 250 miles. when will the

mojhsa [17]

They complete a 900-mile distance with their combined speed of (300+250=550) mph
Therefore, they meet after 900m/550mph=18/11h=1.6364h

6 0

2 years ago

Rationalize the denominator of \frac{1 \sqrt{3}}{1-\sqrt{3}}. When you write your answer in the form A B\sqrt{C}, where A, B, an

kobusy [5.1K]

Answer:

The value of ABC is 6.

Step-by-step explanation:

Consider the expression

$\frac{1+\sqrt{3}}{1-\sqrt{3}}$

Rationalize the denominator.

$\frac{1+\sqrt{3}}{1-\sqrt{3}}\times \frac{1+\sqrt{3}}{1+\sqrt{3}}$

$\frac{(1+\sqrt{3})^2}{1^2-(\sqrt{3})^2}$

$\frac{1^2+(\sqrt{3})^2+2\sqrt{3}}{1-3}$

$\frac{1+3+2\sqrt{3}}{-2}$

$\frac{4+2\sqrt{3}}{-2}$

$\frac{4}{-2}+\frac{2\sqrt{3}}{-2}$

$-2-\sqrt{3}$ ..... (1)

The answer in the form

$A+B\sqrt{C}$ .... (2)

On comparing (1) and (2), we get

$A=-2,B=-1,C=3$

We need to find the value of ABC.

$ABC=(-2)(-1)(3)=6$

Therefore the value of ABC is 6.

7 0

2 years ago

How many ordered pairs (x, y) of positive integers satisfy the inequality 4x + 5y < 20?

lorasvet [3.4K]

Answer:

Step-by-step explanation:

The ordered pairs that satisfy the inequality are shown in the attachment. There are 6 of them.

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2 years ago

What multiplication fact could you use to find a number that can be divided evenly by 8 and by 9?

agasfer [191]

72 can be divided by 8 and 9 because if you multiplied 8 and 9 together it is 72

3 0

2 years ago

Read 2 more answers

Question 1 Unsaved

ICE Princess25 [194]

Y = 3x + 4

good luck!

3 0

2 years ago

Can Someone help me As Soon As Possible Please ​

Can Someone help me As Soon As Possible Please