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Bess [88]
3 years ago
13

Two planes 2800km apart start flying towards each other at the same time. They meet 3.5 hours later. One plane flies 75km/hour f

aster than the other plane. How fast was each plane flying?
Mathematics
1 answer:
uranmaximum [27]3 years ago
6 0

Answer:

yes and good

Step-by-step explanation:

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Write an equation in slope-intercept form of the line that bisects the angle formed by BA and BC
slega [8]

Given:

Angled formed by ray BA and ray BC is 90 degrees.

To find:

The equation of line that bisects the angle formed by ray BA and ray BC.

Solution:

If a line bisects the angle formed by ray BA and ray BC, then it must be passes through point B and makes angles of 45 degrees with ray BA and ray BC.

It is possible if the line passes though point B(-1,3) and other point (-2,4).

Equation of line is

y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)

y-3=\dfrac{4-3}{-2-(-1)}(x-(-1))

y-3=\dfrac{1}{-1}(x+1)

y-3=-x-1

Add 3 on both sides.

y=-x-1+3

y=-x+2

Therefore, the required equation of line is y=-x+2.

8 0
4 years ago
Solve 15 < 4x on a number line
prisoha [69]

Answer:

that shall answer 15 < 4x on a number line

Step-by-step explanation:

view image for more clarity

7 0
3 years ago
Need brief explanation about why false is correct
anyanavicka [17]

<u>We are given the equation:</u>

(a + b)! = a! + b!

<u>Testing the given equation</u>

In order to test it, we will let: a = 2 and b = 3

So, we can rewrite the equation as:

(2+3)! = 2! + 3!

5! = 2! + 3!

<em>We know that (5! = 120) , (2! = 2) and (3! = 6):</em>

120 = 2 + 6

We can see that LHS ≠ RHS,

So, we can say that the given equation is incorrect

6 0
3 years ago
What is -3(y+2)^2-5+6y in standard from
satela [25.4K]

Answer:

Step-by-step explanation:

-3(y²+4y+4)-5+6y

=-3y²-12 y-12-5+6 y

=-3y²-6y-17

7 0
3 years ago
2. Two puppies together weigh 22 kilograms 300 grams. If one
monitta

Answer:

B = 12800 grams or 12kg 800 grams.

Step-by-step explanation:

Let the two puppies be A and B respectively.

Translating the word problem into an algebraic expression, we have;

A + B = 22kg 300g

A = 9kg 500g

Conversion;

1 Kilograms = 1000 grams.

9kg 500g = 9*1000 + 500 = 9500 grams

22kg 300g = 22*1000 + 300 = 22300 g

Substituting into the above formula, we have;

9500 + B = 22300

B = 22300 - 9500

B = 12800 grams or 12kg 800 grams

6 0
3 years ago
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