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Rudik [331]
2 years ago
9

Graph the function f(x) = -4(2)^x

Mathematics
1 answer:
Novosadov [1.4K]2 years ago
3 0

Answer:

a graph similar to that of the exponential function but below the "X" axis. Just like a mirror image of"e^x" and intercept the "y" axis when " X=4"

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Find the least common denominator of<br> 7<br> and<br> X+4 x-4
Effectus [21]
(X+4)(X-4) is the LCD because you just have to look at the denominators and see what factors or values are not already part of your LCD.
5 0
2 years ago
Which expressions are equivalent to the one below? Check all that apply. 21^x/3^x
satela [25.4K]

Answer:

<em>options:  A,C,E </em>are correct.

Step-by-step explanation:

We have to find the expression equivalent to the expression:

\dfrac{21^x}{3^x}

we know that: 21^x=(3\times7)^x\\\\21^x=3^x\times7^x

Hence,

\dfrac{21^x}{3^x}=\dfrac{3^x\times7^x}{3^x}=7^x-----(1)

A)   (\dfrac{21}{3})^x= 7^x  (same as(1))

Hence, option A is correct.

B)  7 ; which is a different expression from (1)

Option B is incorrect.

C) 7^x   (Same as (1))

Option C is correct.

D) (21-3)^x=18^x   which is a different expression from (1)

Hence, option D is incorrect.

E) \dfrac{7^x\times3^x}{3^x}=7^x   ; which is same as (1)

Hence, Option E is correct.

F) 3^x  ; which is not same as expression (1)

Hence, option F is incorrect.

5 0
3 years ago
Read 2 more answers
Parlings vary directly with mots. If 7.5 mots are worth 37.5 parlings, how many parlings will get you 13 mots?​
snow_lady [41]

Answer:

  • 65 parlings

Step-by-step explanation:

<u>Use ratios:</u>

  • 7.5 mots / 37.5 parlings = 13 mots / x parlings
  • x = 13*37.5/7.5
  • x = 65
5 0
2 years ago
Stephen factored x2−10x 21 and found the answer to be (x 7)(x 3). Is he correct? Question 4 options: yes no.
STALIN [3.7K]

The true statement is that Stephen's factored expression is incorrect.

Given

The expression is given as:

\rm x^2-10x+21

<h3>What is factorization?</h3>

Factorization involves splitting a function into factors.

Start by expanding the equation

\rm x^2-10x+21=0\\\\x^2-7x-3x+21=0

Factorize the equation

\rm x^2-7x-3x+21=0\\\\x(x-7)-3(x-7)=0

Factor out x - 7

\rm x(x-7)-3(x-7)=0\\\\(x-7)(x-3)=0

Hence, the true statement is that Stephen's factored expression is incorrect.

Read more about factored expressions at:

brainly.com/question/11579257

7 0
2 years ago
a bakery used 3 cups of flour to make a full size cake if they wanted to make a cake that was 1/2 the size how many cups of flou
Anastasy [175]

1 cup 4oz.  1 cup = 8oz

4 0
3 years ago
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