2 years ago

Ben enters four events in an athletics competition. The probability of him winning each of the event is shown below

Mathematics

1 answer:

Kryger [21]2 years ago

8 0

Answer:

Hi I need to get another chance to go back to school subject1

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What is the value of the rationale expression below when x is equal to 4? X+20/x+4

sveta [45]

Answer:

Step-by-step explanation:

to evaluate substitute x = 4 into the rational expression, that is

$\frac{4+20}{4+4}$ = $\frac{24}{8}$ = 3

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2 years ago

Please help these are not easy for me

Pavel [41]

Answer:

12a^2 - 9a + 5

Step-by-step explanation:

(5a^2 - 6a - 4) - (-7a^2 + 3a - 9)

5a^2 + 7a^2 = 12a^2

-6a - 3a = -9a

-4 + 9 = 5

12a^2 - 9a + 5

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2 years ago

Find the solution of the system of equations shown below. Show the work that leads to your answer. y = -2x x + y = 3

Helen [10]

Hope this makes sense and helps!

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2 years ago

5.7y-5.2=y/2.5 how to solve

11Alexandr11 [23.1K]

5.7y-5.2=y/2.5

Add 5.2 to both sides:

5.7y = y/2.5 + 5.2

y/2.5 = 0.4y

5.7y = 0.4y + 5.2

Subtract 0.4y from both sides:

5.3y = 5.2

Divide both sides by 5.3:

y = 5.2/5.3

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2 years ago

Read 2 more answers

If f(x) = -x2 + 6x, what is f(-3)?

Sever21 [200]

Answer:

-12

Step-by-step explanation:

f(-3)= -(-3)2 + 6(-3)

= -(-6) -18

= 6 - 18

= - 12

8 0

3 years ago