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alekssr [168]
3 years ago
15

If (1)=3 and f(n)=f(n-1)-1 then find the value of f(6)

Mathematics
1 answer:
katrin [286]3 years ago
8 0

Answer:

f(1) = 3

f(n) = f(n-1) - 1

Otherwise,

f(n) = f(1) - (n-1)

=> f(6) = 3 - 5 = -2

Hope this helps!

:)

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If Y +Y + 40 = 180 in an isosceles triangle so Y =?
Art [367]

If Y +Y + 40 = 180 in an isosceles triangle so Y =?

Answer:

b) 70

Step-by-step explanation:

Y + Y + 40 = 180

2y + 40 = 180

2y = 180 - 40

2y = 140

y = 140/2

y = <u>7</u><u>0</u>

So, the value of Y is 70 (b)

#CMIIW ^^

4 0
3 years ago
Read 2 more answers
After taking 7 quizzes, your average is 77 out of 100. What must your average score be on the next five quizzes to increase your
Anna [14]

Answer:

89.

Step-by-step explanation:

We have been given that after taking 7 quizzes, your average is 77 out of 100. We are asked to find what average score be on the next five quizzes to increase your average to 82.

The total of 12 quizzes to get 82 would be 12\times 82=984.

The total scores earned by you in previous 7 quizzes are 7\times 77=539

The total scores you need to earn on next 5 quizzes would be difference of scores in 12 quizzes and total scores in 7 quizzes as:

984-539=445

Now, we will divide total scores on coming 5 quizzes by 5 to find the average as:

\text{Average score on next 5 quizzes}=\frac{445}{5}

\text{Average score on next 5 quizzes}=89

Therefore, your average score on the next five quizzes should be 89 to increase your average to 82.

8 0
3 years ago
Hi I need help on my homework. Pls help
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5 0
3 years ago
Dillon studied 3 6/7 hours for his English test. He studied 5 3/14 hours for his math test. How much longer did he study for his
yaroslaw [1]

Answer:

1 \frac{5}{14}, \frac{19}{14}

Step-by-step explanation:

How much longer did he study for his math test?

E=3\frac{6}{7}

M=5\frac{3}{14}

x=difference

An equation for this would resemble this:

M- E=x

Now before we get into any equation solving let's get the <em>denominators </em>equal to each other. we can do this by <em>multiplying </em>the <em><u>numerator</u></em> and <u><em>denominator</em></u><em> </em>by 2.     \frac{6(2)}{7(2)}=\frac{12}{14}

Now we can solve the equation:

5\frac{3}{14} - 3\frac{12}{14} =\frac{19}{14}

1 \frac{5}{14}, as a mixed number

<em>plz mark me brainliest. :0</em>

4 0
3 years ago
Choose the quadratic equation with a leading coefficient of 6 and solutions 5 and -2/3
Paha777 [63]

Answer:

Option D

Step-by-step explanation:

Verify each quadratic equation

case A) we have

This quadratic equation has a leading coefficient of 1

Substitute the value of x=3 and x=-2 in the equation

For x=3

----> is not true

therefore

x=3 is not a solution of the quadratic equation

case B) we have

This quadratic equation has a leading coefficient of 1

Substitute the value of x=3 and x=-2 in the equation

For x=3

----> is not true

therefore

x=3 is not a solution of the quadratic equation

case C) we have

This quadratic equation has a leading coefficient of 1

Substitute the value of x=3 and x=-2 in the equation

For x=3

----> is not true

therefore

x=3 is not a solution of the quadratic equation

case D) we have

This quadratic equation has a leading coefficient of 1

Substitute the value of x=3 and x=-2 in the equation

For x=3

----> is true

therefore

x=3 is a solution of the quadratic equation

For x=-2

----> is true

therefore

x=-2 is a solution of the quadratic equation

5 0
3 years ago
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