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3 years ago

Please help i have so many timed quizzes

Mathematics

2 answers:

Elodia [21]3 years ago

7 0

I think it's 5.5x-9. I'm not sure though.

barxatty [35]3 years ago

5 0

5.5x+9

Trying to make my answer 20 characters

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Solve the equation (linear equation)<br><br> <img src="https://tex.z-dn.net/?f=%28%5Cfrac%7B16%7D%7B9%7D%29%20%5E%7B2x%20%2B5%7D

nignag [31]

Answer: $x=-\frac{3}{5}$

Step-by-step explanation:

By the negative exponent rule, you have that:

$(\frac{1}{a})^n=a^{-n}$

By the exponents properties, you know that:

$(m^n)^l=m^{(nl)}$

You can rewrite 16 and 9 as following:

16=4²

9=3²

Therefore, you can rewrite the left side of the equation has following:

$(\frac{4^2}{3^2})^{(2x+5)}=(\frac{3}{4})^{(x-7)}\\\\(\frac{3^2}{4^2})^{-(2x+5)}=(\frac{3}{4})^{(x-7)}\\\\(\frac{3}{4})^{-2(2x+5)}=(\frac{3}{4})^{(x-7)}$

As the base are equal, then:

$-2(2x+5)=x-7$

Solve for x:

$-2(2x+5)=x-7\\-4x-10=x-7\\-4x-x=-7+10\\-5x=3\\x=-\frac{3}{5}$

6 0

3 years ago

How do you reduce 2 1/32

loris [4]

Answer:

$2\frac{1}{32}=\frac{2\cdot 32+1}{32}=\frac{65}{32}$

Step-by-step explanation:

Considering the expression

$2\frac{1}{32}$

$\mathrm{Convert\:mixed\:numbers\:to\:improper\:fraction:}\:a\frac{b}{c}=\frac{a\cdot \:c+b}{c}$

<em>Improper fraction is a fraction which has numerator greater than denominator, such as 5/3.</em>

So,

$2\frac{1}{32}=\frac{2\cdot 32+1}{32}=\frac{65}{32}$

As $2\frac{1}{32}$ is converted into improper fraction $\frac{65}{32}$ .

And $\frac{65}{32}$ can not be further reduced.

Therefore,

$2\frac{1}{32}=\frac{2\cdot 32+1}{32}=\frac{65}{32}$

Keywords: fraction, reduced form, improper fraction

Learn more about fractions from brainly.com/question/535608

#learnwithBrainly

7 0

2 years ago

Help!!<br> f (x) =-3x+25; Find f(x)=52

melamori03 [73]

<h3>Solution for -3x+25=52 equation:</h3>

Simplifying

-3x + 25 = 52

Reorder the terms:

25 + -3x = 52

Solving

25 + -3x = 52

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-25' to each side of the equation.

25 + -25 + -3x = 52 + -25

Combine like terms: 25 + -25 = 0

0 + -3x = 52 + -25

-3x = 52 + -25

Combine like terms: 52 + -25 = 27

-3x = 27

Divide each side by '-3'.

x = -9

Simplifying

x = -9

4 0

1 year ago

The question is: "Without actually graphing, describe how the graph of y = ( -2^(x+17) ) - 4.3 is related to the graph of y = 2^

Alexxx [7]

Answer:

The function has been flipped due to the negative in front.

The function has been shifted 17 units to the left.

The function has been shifted 4.3 units down.

Step-by-step explanation:

When functions are transformed there are a few simple rules:

• Adding/subtracting inside the parenthesis to the input shifts the function left(+) and right(-).

• Adding/subtracting outside the parenthesis to the output shifts the function up(+) and down(-).

• Multiplying the function by a number less than 1 compresses it towards the x-axis.

• Multiplying the function by a number greater than 1 stretches it away from the x-axis.

The graph of $(-2^{x+17}) -4.3$ compares to $2^x$ in the following ways:

The function has been flipped due to the negative in front.

The function has been shifted 17 units to the left.

The function has been shifted 4.3 units down.

5 0

3 years ago

What's the unit rate of 2.50 for 5 onces

bulgar [2K]

2.50/5 0.50 an ounce

5 0

2 years ago