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Crank
3 years ago
8

Given the function: f(x) = 7x - 8

Mathematics
1 answer:
Svetach [21]3 years ago
4 0

Answer:

A) -22

B) 62

C) 37/7

Step-by-step explanation:

A) replace x by -2

B)replace x by 10

C) replace f(x) by 29

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Antonio's toy boat is bobbing in the water under a dock. The vertical distance HHH (in \text{cm}cmstart text, c, m, end text) be
musickatia [10]

Answer: Time t = 33.0 seconds

Step-by-step explanation:

Given that the vertical distance H between the dock and the top of the boat's mast t seconds after its first peak is modeled by the function

H(t) = 5cos( 2π/3 ​t) − 35.5H

Where the maximum vertical distance = 5

At the down position, H(t) = 0

5cos( 2π/3 ​t) − (35.5/100)H = 0

5cos( 2π/3 ​t) − 0.355 × 5 =0

5cos( 2π/3 ​t) − 0.1775 = 0

5cos( 2π/3 ​t) = 0.1775

cos( 2π/3 ​t) = 0.1775/5

cos( 2π/3 ​t) = 0.355

2π/3 ​t = cos^-1 (0.355)

2π/3 ​t = 69.2

2πt = 69.2 × 3

2πt = 207.6

t = 207.6/2π

t = 33.0 seconds

3 0
4 years ago
Read 2 more answers
A plant cell has a length of 0.000085 meters. Which is this length written in scientific notation?
Dmitrij [34]
The length written in scientific notation is 85 x 10^-6
5 0
3 years ago
Last month, Margo bought a tree that grows 2.5 \text{ cm}2.5 cm2, point, 5, start text, space, c, m, end text each day. It was 5
Luda [366]

Answer:

equastion: 5+2.5d=65

days: 24

Step-by-step explanation:

got it right on khan, sorry if late

4 0
3 years ago
The length of an object is measured as 44.9 centimeters. What is this measurement in scientific notation?
Dmitriy789 [7]
4.49 x 10^1 is 44.9 in scientific notation
4 0
4 years ago
-3[1+2(4+5)]<br> PLease answer ASAP!!!
vaieri [72.5K]

Answer:

-57

Step-by-step explanation:

<h2><u>Use BOMAS</u></h2>

B- brackets

O- of

M- multiplication

A- addition

S - subtraction

-3[1+2(4+5)]

first solve what is in the brackets

(4+5) = 9

place 9 in the brackets

-3[1+2(9)]

now multiply the 2 and 9

2*9 = 18

-3[1+18)]

1+ 18 = 19

now multiply the (-3) with 19

= <u>-57</u>

4 0
4 years ago
Read 2 more answers
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