What decimal part of 350 is 70

Mathematics

1 answer:

matrenka [14]3 years ago

7 0

Hope this helps and the answer is 0.2

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Kay started a chess club, and for a while she was the only member. She planned to have each member find two new members each mon

Lyrx [107]

Answer:

127

Step-by-step explanation:

The sum of 7 terms of the series 1 +2 +4 +... with first term 1 and common ratio 2 is given by ...

Sn = a1 × (r^n -1)/(r -1) . . . . . . first term a1, common ratio r

S7 = 1 × (2^7 -1)/(2 -1) = (128 -1)/1 = 127

At the end of 6 months, the club will have 127 members.

6 0

3 years ago

Inverse of f(x)= 2^3x + 1

Morgarella [4.7K]

To find the inverse of a function:
1. Replace f(x) with y.
2. Switch x and y.
3. Solve for y.
4. Replace y with f-1(x) (notation for inverse fucntions)

$f(x)=2^{3x}+1$
Let's use y instead of f(x).
$y=2^{3x}+1$
Switch the variables...
$x=2^{3y}+1$
Now, we solve for y.
$x-1=2^{3y}$
$3y =log_2(x-1)$
$y=\frac{log_2(x-1)}{3}$
Now, just put that inverse function notation on there.

$\boxed{f^{-1}(x)=\frac{log_2(x-1)}{3}}$

4 0

4 years ago

Read 2 more answers

A group of 8 children go on a field trip. Mrs. Smith is the mother of 3 of these children. School officials later announce that

Crank

Answer:

a. 0.107

b. 0.535

c. 0.642

d. 0.4

e. 0.25

f. 0.063

Step-by-step explanation:

Please see attachment

5 0

4 years ago

Read 2 more answers

Idk what to do can anyone help

Leona [35]

Step-by-step explanation:

$\angle PTS\: \&\: \angle QTR$ are vertically opposite angles.

$\therefore \: \angle PTS\: = \: \angle QTR \\ \\ \therefore \: [11(y - 10)] \degree = (4y - 5)\degree \\ \\ \therefore \:11y - 110 = 4y - 5 \\ \\ \therefore \:11y - 4y = 110 - 5\\ \\ \therefore \:7y = 105 \\ \\ \therefore \:y = \frac{105}{5} \\ \\ \huge \red{ \boxed{\therefore \:y = 15}} \\ \\ \therefore \: m\angle PTS\: =[11(y - 10)] \degree \\ = [11(15- 10)] \degree \\ = [11 \times 5] \degree \\ \huge \orange{ \boxed{\therefore \: m\angle PTS\: = 55 \degree}}$