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zaharov [31]
4 years ago
15

For the function given, state the middle line; f(t) = 40cos (80t + 20)

Mathematics
1 answer:
Digiron [165]4 years ago
8 0

In the standard form of the equation

\\ \ f(t)=Acos[b(t\pm c)]+k\\ \\

The middle line =k

For our given problem

f(t) = 40cos (80t + 20)

On comparison we get k=0

Hence middle line=0

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I NEED HELP
creativ13 [48]

Answer:

1).  (x - 4 = 13)

2).  (r + 17 = 51)

3). (7/9x =28)

4). (2/3x = 2)

5). { 3(x-2) = -9 }

6). (x -1.75 = 8.85)

7). Natalie buys organic almonds priced at $77 from the grocery store. How much did

she pay the cashier, if she received $23 in change?

Step-by-step explanation:

1. add 4 on both sides and it will be x=17

2. subtract 17 on both sides and it will be x= 34

3. multiply 9/7 on both sides and it will be x= 257/7 then you divide 257 by 7 then the final answer will be x= 36

4. multiply 3/2 on both sides and it will be x=6/2 then you divide 6 from 2 and the finial answer will be x= 3

5. you will distribute 3 into x and 2 and you will be 3x-6=-9 then you will add 6 on both sides so you will get 3x=3 and then divide 3 on both side so you will get x=1

6. add 1.75 on both sides so x= 10.6

7. the equation will be 23 +x = 77 so first you will subtract 23 on both sides and x will equal 54 so Natalie paid $54

6 0
3 years ago
Read 2 more answers
Each packet of jelly-child sweet contains 100 sweet. The cycling tour had 9425 jelly child sweet remaining. How many unopened pa
goblinko [34]
You would divide the amount remaining by amount per packet to get you answer.
9425/100=94.25
but because you want only unopened packets ignore the decimal

The answer is you have 94 unopened packets.
7 0
3 years ago
Use the proportion of the triangle enlargement to find the missing measure of the enlarged triangle. 1:Set up the proportion: 9/
ZanzabumX [31]

The value of x = 24

Step-by-step explanation:

The proportion is set as ;

\frac{9}{6} =\frac{x}{16}

Applying cross product

9*16=6*x

144=6x --------simplify by dividing by 6 both sides

144/6 = 6x/6

24=x

Learn More

Proportion in Enlargement : brainly.com/question/9930004

Keywords : proportion, enlargement ,triangles, cross products

#LearnwithBrainly

5 0
3 years ago
Read 2 more answers
3Q + 5 + 2 - 8 - 5 equals 65
Usimov [2.4K]
Answer
 23.70

Proof
3Q+5+2-8-5=65        ~ Simplify
3Q-6=65                      ~Cancel out the six
     +6  +6                      ~Add 6 to both sides since it is a           3Q=71                            negative.
 /3     /3                          ~Cancel out the three.
Answer                         ~Divide both sides by 3
Q=23.66                        
Rounded Up
Q=23.70

4 0
3 years ago
Read 2 more answers
Bradley needs st least $280 for a laptop. He already had saved $40. He earns $8 an hour at his job. Write and solve the inequali
Dima020 [189]

Answer: 30

Step-by-step explanation:

40 + 8x = 280

-40 -40

8x = 240

___ ____

8 8

X = 30

3 0
2 years ago
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