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Marat540 [252]
3 years ago
9

Evaluate the expression 8n for n = 1 5/12

Mathematics
1 answer:
ad-work [718]3 years ago
4 0

Answer

8n=34/3

Step-by-step explanation:

1 5/12=17/12

17/12*8/1=136/12=34/3

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Solve the inequality 6h−5(h−1)≤7h−11 and write the solution in interval notation. Use improper fractions if necessary.
Kobotan [32]

Answer:

h \geq 2\frac{2}[3}

Step-by-step explanation:

We solve the inequality similarly to how we would solve an equalitu.

6h - 5(h-1) \leq 7h - 11

6h - 5h + 5 \leq 7h - 11

h - 7h \leq -11 - 5/

-6h \leq -16

Multiplying everything by -1

6h \geq 16

Simplifying by 2

3h \geq 8

h \geq \frac{8}{3}

8 divided by 3 is 2 with rest two. So as a improper fraction, the answer is:

h \geq 2\frac{2}[3}

6 0
3 years ago
Rewrite the function by completing the square. f(x)= x^{2} -9 x +14f(x)=x 2 −9x+14
Bess [88]

Answer:

f(x)=(x-4.5)^{2}-6.25  or f(x)=(1/4)(2x-9)^{2}-6.25

Step-by-step explanation:

we have

f(x)=x^{2}-9x+14

Group terms that contain the same variable, and move the constant to the opposite side of the equation

f(x)-14=x^{2}-9x

Complete the square. Remember to balance the equation by adding the same constants to each side

f(x)-14+4.5^{2}=x^{2}-9x+4.5^{2}

f(x)+6.25=x^{2}-9x+4.5^{2}

Rewrite as perfect squares

f(x)+6.25=(x-4.5)^{2}

f(x)=(x-4.5)^{2}-6.25

f(x)=(1/4)(2x-9)^{2}-6.25

5 0
3 years ago
If [infinity] cn8n n = 0 is convergent, can we conclude that each of the following series is convergent? (a) [infinity] cn(−3)n
pashok25 [27]

Answer:

a) we know that this is convergent.

b) we know that this might not converge.

Step-by-step explanation:

Given the \sum^\infty_{n=0}C_n8^n is convergent

Therefore,

(a)  \sum^\infty_{n=0}C_n(-3)^n The power series \sum C_nx^n has radius of convergence at least as big as 8. So we definitely know it converges for all x satisfying -8<x≤8. In particular for x = -3

∴ \sum^\infty_{n=0}C_n(-3)^n  is convergent.

(b) \sum^\infty_{n=0}C_n(-8)^n -8 could be right on the edge of the interval of convergence, and so might not converge

8 0
3 years ago
One method of indirect measurement involves setting up a right triangle and measuring one of the
Alekssandra [29.7K]
Obligue I think it should be
8 0
3 years ago
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Jennifer spent $25 on a magazine and some erasers. If the magazine cost $5 and each eraser cost 4, then how many erasers did she
Natali [406]

Answer:

she bought 5 erasers

Step-by-step explanation:

25-5 is 20 and 20 divided by 4 is 5

8 0
3 years ago
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