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2 years ago

The expression x-y equals 0.7 if x and y have certain values. Evaluate the following expression with the same values of x and y

Mathematics

1 answer:

Arisa [49]2 years ago

7 0

Answer:

Step-by-step explanation:

<h2>We already know that x-y equals to 0.7,</h2><h2>so 5(x-y) would just be 5(0.7), with this the answer would equal to 3.5. </h2>

<em>***I hope this helps and the explanation is helpful!***</em>

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Jensen and Raju had the same amount of money at first. After Jensen spent

Andreyy89

Step-by-step explanation:

Both of them had $x

Later

Jensen=x-64

Raju=x-148

Jensen=3*Raju

x-64=3(x-148)

x-64=3x-444

3x-x=444-64

2x=380

x=$190

5 0

3 years ago

Jenny was in charge of selling tickets to a family fun night at her school

ra1l [238]

I’ve attached my work below for #4
5) 8% is equivalent to 8 cents so each item was $1.08
Than you know he spent 16.20 so you divided
1.08/16.20 which equals 15
So he got 15 items
6) the moon is 250,000 miles away which is about driving around earth 10 times which would take 6 months (not sure about this one)

Hope this helps!
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4 0

3 years ago

The graphs of the function f (given in blue) and g (given in red) are plotted above. Suppose that u(x)=f(x)g(x) and v(x)=f(x)/g(

Rus_ich [418]

U(x) = f(x).(gx)
v(x) = f(x) / g(x)

Use chain rule to find u(x) and v(x).

u '(x) = f '(x) g(x) + f(x) g'(x)

v ' (x) = [f '(x) g(x) - f(x) g(x)] / [g(x)]^2

The functions given are piecewise.

You need to use the pieces that include the point x = 1.

You can calculate f '(x) and g '(x) at x =1, as the slopes of the lines that define each function.

And the slopes can be calculated graphycally as run / rise of each graph, around the given point.

f '(x) = slope of f (x); at x = 1, f '(1) = run / rise = 1/1 = 1

g '(x) = slope of g(x); at x = 1, g '(1) = run / rise = 1.5/ 1 = 1.5

You also need f (1) = 1 and g(1) = 2

Then:

u '(1) = f '(1) g(1) + f(1) g'(1) = 1*2 + 1*1.5 = 2 + 1.5 = 3.5

v ' (x) = [f '(1) g(1) - f(1) g(1)] / [g(1)]^2 = [1*2 - 1*1.5] / (2)^2 = [2-1.5]/4 =

= 0.5/4 = 0.125

Answers:
u '(1) = 3.5
v '(1) = 0.125

3 0

3 years ago

What is the factorization of the trinomial below?<br> x^2- 5x+4

Fantom [35]

Answer:A

Step-by-step explanation:

FOIL

6 0

2 years ago

Solve: (t/-8) - -4 = -6 t = _____

Greeley [361]

Answer:

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2 years ago