3 years ago

Sophie bikes at a speed of s miles per hour. Her friend Rana is slower, her biking speed is only r miles per hour.

Mathematics

1 answer:

tamaranim1 [39]3 years ago

7 0

For this problem I got (20/r)-(20/s).

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What the answer to this

neonofarm [45]

Answer:

Step-by-step explanation:

(I solved in the picture, firstly look at there)

after completing the square and factoring :

${x}^{2} + 4x + 4 = 8 + 4$

${x}^{2} + 4x + 4 = 12$

${(x - 2)}^{2} = 12$

Hope this helps ^-^

6 0

3 years ago

There are three numbers a, b, c, where a > b and b >c. Describe the positions of the numbers on a number line.

AfilCa [17]

In maths, the “>” sign means “greater than”, or “bigger than.” If we say A > B, that means (in English) “A is bigger than B.”
So, if A > B and B > C:
A is bigger than B, and B is bigger than C.

So the smallest would be C, since both A and B are bigger. Next is B, and biggest is A.

That is the order they would be in a number line: C - B - A

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3 years ago

Solve the system of equations algebraically.

Grace [21]

Y = y do you got it?

3 0

4 years ago

Read 2 more answers

Figure JKL is reflected about the y-axis to obtain figure J′K′L′:

Colt1911 [192]

Answer: the answer is a

Step-by-step explanation:

5 0

3 years ago

A six-foot-tall person walks from the base of a broadcasting tower directly toward the tip of the shadow cast by the tower. When

zhuklara [117]

Answer:

270 feet

Step-by-step explanation:

For clarity, the image below represents the problem. Let's call h the height of the tower. Notice that it forms 2 triangles that are similar to side-angle-side. So, we can calculate the higher of the tower by similar triangles:

higher1/base1 = higher2/base2

h/135 = 6/3

h/135 = 2

h = 270 ft

8 0

3 years ago