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3 years ago

8

Describe the relationship between the number of places a decimal point is moved to the left and change in the value of the numbe

r.

1 answer:

Gnoma [55]3 years ago

8 0

Makes the value a negative

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If the test is worth 50 and you score 84% how many questions did you get wrong? Write the proportion?

quester [9]

You got 8 questions wrong.

10% of 50 is 5.
x8 x8
________________
80% of 50 is 40.
84% of 50 is 42.

50-42= 8 questions wrong.

8 0

3 years ago

Read 2 more answers

Do 4x and 15 + x have the same value when x is 5? How do you know?

alexandr402 [8]

Answer:

yes

Step-by-step explanation:

If x = 5,

4x=4*5=20

15+x=15+5=20

They're both the same.

4 0

3 years ago

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What are the coordinates of the image produced by applying the composition / to the point (–5, 4)?

Rainbow [258]

Its D(5,-4) XD ;p
because I did it and got it right but don't take my word for it just ask the other suggestions <span />

3 0

3 years ago

Suppose f is a function with exponential growth and f(0)=1. Explain why f can be represented by a formula of the form

galben [10]

We are supposed to explain why the given function can be expressed in form $f(x)=b^{x}$ , when $f(0)=1$ .

Since the given function is an exponential function we can express it as $f(x)=a(b)^{x}$ .

Now let us substitute x=0 in the given function,

$f(x)=b^{x}$

$f(0)=b^{0}$

$f(0)=1$

Let us substitute x=0 in our function.

$f(0) = a(b)^{0}$

$f(0) = a\cdot 1$

$f(0)=a$

Upon substituting a=1 in our function we will get,

$f(x) = 1(b)^{x}$

$f(x) =(b)^{x}$

Therefore, our function f can be represented by the formula of the form $f(x)=b^{x}$ .

7 0

3 years ago

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Solve the system using substitution 3x+7y=3<br> x-3y=-15

erik [133]

Answer:

3x+7y=3

x-3y=-15

2x+4y=-18

HOPE THIS HELPS!!!!!!!

6 0

3 years ago