3 years ago

True or False

Mathematics

1 answer:

DanielleElmas [232]3 years ago

6 0

Answer: False actually

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What is the sum of the first 20 terms of the series below?

Natalija [7]

Answer:

Step-by-step explanation:

Now to find the sum of first 20 terms, substitute n=20,a=−1 and d=4 in S n = 2n [2a+ (n−1)d] as follows: S 20 = 220 [(2×−1)+(20−1)4]=10[−2+(19×4)]=10(−2+76)=10×74=740 Hence, the sum of first 20 terms is 740.

6 0

2 years ago

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Please answer the question down below also show the problem solving

rosijanka [135]

Answer: 6

Step-by-step explanation:

money:hours

15 : 1

90 : ____

90÷15= 6,

so __ ÷ 6= 1

= 6

4 0

2 years ago

F(x) and g(x) are a differentiable function for all reals and h(x) = g[f(5x)]. The table below gives selected values for f(x), g

astraxan [27]

By the chain rule,

$h(x)=g(f(5x))\implies h'(x)=5g'(f(5x))f'(5x)$

so

$h'(1)=5g'(f(5))f'(5)$

It's kinda hard to tell which values are which in the table, but if I had to guess, you should get

$h'(t)=5g'(f(5))f'(5)=5g'(2)(0)=0$