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Law Incorporation [45]
3 years ago
12

Add decimal 84.207+28.963

Mathematics
1 answer:
Naddika [18.5K]3 years ago
6 0

Answer:

113.17

Step-by-step explanation:

add them but line up the decimal. remember smallest number first. You know actually it don't matter

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From 1997 - 2001 the number n (in millions) of black-and-white TV S sold in the U.S. Can be modeled by n = 26.8 * (0.85) ^ t whe
Alexandra [31]

Question

a) What is the decay factor?

b) What is the percent decrease?

c) Estimate the number of black and white TV's  sold in 1999.

Answer:

a. Decay factor = 0.85

b. Percent decrease = 15%

c. 19.363  million TVs were sold

Step-by-step explanation:

Given

n = 26.8(0.85)^t

Solving (a): The decay factor

An exponential function has the form

y = ab^x

Where b is:

b = decay\ factor\ or\ growth\ factor

By comparison:

b = 0.85

Solving (b): Percentage decrease:

Percentage decrease P is calculated as follows:

P = 1 - b

Substitute 0.85 for b

P = 1 - 0.85

P = 0.15

Convert to percentage

P = 0.15*100\%

P = 15\%

Solving (c): TVs sold in 1999

First, we need to determine the value of t for 1999

In 1997, t= 0

In 1998, t= 1

In 1999, t= 2

So, we substitute 2 for t in: n = 26.8(0.85)^t

n = 26.8(0.85)^2

n = 26.8*0.7225

n = 19.363

4 0
3 years ago
The polygons are similar, but not necessarily drawn to scale. Find the value of x.
alexandr402 [8]

If the shapes are similar, the correspondent sides are in proportion:

AB\div DE = BC \div EF

Let's plug the values and solve for x:

5x \div 5 = 4 \div x \iff \dfrac{5x}{5}=\dfrac{4}{x}\iff x = \dfrac{4}{x}

Multiply both sides by x to get

x^2=4 \iff x=\pm2

The only feasible solution, though, is x=2, because it wouldn't make sense to have negative lengths.

5 0
3 years ago
What is the range of the function in the given table?
Aloiza [94]
I think its b but im not sure
6 0
3 years ago
Read 2 more answers
Help me please!
Neko [114]
I think the answer is A.
6 0
4 years ago
Read 2 more answers
Multiplying in any order results in the same product is called
STatiana [176]

Answer:

C) commutative

Step-by-step explanation:

Example: a x b = b x a

7 0
3 years ago
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