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umka2103 [35]
3 years ago
8

Find amplitude and midline of the function y=4cos(4)-5.

Mathematics
1 answer:
Nat2105 [25]3 years ago
7 0
Amplitude: 4

If midline means center, it is -5
I'm also implying that there is an x in cos(4x)
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ANSWER THESE THREE CORRECTLY AND YOU GET BRAINLIEST!!
Trava [24]

Answer:

1. A. 446

155%*288=446

2. 118

130%*91=118

3. 739

170%*435=739

Step-by-step explanation:

Please brainliest!

6 0
2 years ago
Joe is buying a jacket that originally costs $59.27 but is on sale for 10% off. Sales tax is 7%. What is the total cost of the j
postnew [5]
Hello!

10% off means there's a discount on the jacket, so we will be finding how much the discount is worth and then we'll subtract that from the original cost of the jacket. 
Sales tax is basically additional money added to the cost of an item, so we will find what the sales tax is on this and then add that to the cost.

59.27 * 10% = 5.927

59.27 - 5.927 = 53.343

Now, find and add the sales tax. 

53.343 * 7% = 3.73401

53.343 + 3.73401 = 57.07701

Round this to 57.1

The total cost of the jacket is $57.1.
7 0
3 years ago
Read 2 more answers
Can someone help me with number 8 please? Thank you.
Naddik [55]
Answer: -4 \le x \le 5
Note: to write the domain in interval notation, you'd write [-4,5]
if you need the domain in set-builder notation, then you'd write \left\{x|x\in\mathbb{R}, \ -4\le x\le 5\right\}

------------------------------------------------------------------------------

Explanation:

The domain is the set of possible x input values. Look at the left most point (-4,-1). The x coordinate here is x = -4. This is the smallest x value allowed. The largest x value allowed is x = 5 for similar reasons, but on the other side of the graph.

So that's how I got -4 \le x \le 5 (x is between -4 and 5; inclusive of both endpoints)

Writing [-4,5] for interval notation tells us that we have an interval from -4 to 5 and we include both endpoints. The square brackets mean "include endpoint"

Writing \left\{x|x\in\mathbb{R}, \ -4\le x\le 5\right\} is the set-builder notation way of expressing the domain. The x\in\mathbb{R} portion means "x is a real number"

6 0
3 years ago
Bill has enough money to buy no more than 1/2 pound of cheese. how much cheese could he buy?
quester [9]
Let
 x: amount of pounds of cheese that Bill can buy.
 We can write the following inequation for this problem
 x <= 1/2
 Therefore, Bill could buy up to 1/2 pound of cheese.
 answer
 1/2 pound of cheese (maximum)
7 0
3 years ago
There verticles of a rectangle are shown on the grid what are the coordinates of the missing vertex 3,5,6
Nadusha1986 [10]

Answer:

<h2><em><u>5</u></em><em><u>,</u></em><em><u>6</u></em></h2>

Step-by-step explanation:

<em><u>Since</u></em><em><u>,</u></em>

It's a rectangle so it will be formed on the coordinate which is 3units above dot(3,5) in picture where above the dot there is no point .

7 0
2 years ago
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