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anyanavicka [17]
3 years ago
10

Evaluate the expression | 9 | + | - 2|

Mathematics
2 answers:
sesenic [268]3 years ago
7 0

Answer: 11

Step-by-step explanation:

|9| + |-2| =

9 + 2 = 11

scZoUnD [109]3 years ago
4 0
<h2>Answer:</h2><h2>11</h2><h2 /><h2>Hope this helps!!</h2>

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3 • 1/5 = x please help I am having a brain fart and I am running out of time!
Oksana_A [137]

Answer:

3/5

Step-by-step explanation:

Convert 1/5 to a decimal which is .20.

Then multiply by 3.

7 0
2 years ago
Read 2 more answers
Solve 9^x + 4 = 11 for x using the change of base formula log base b of y equals log y over log b.
Sauron [17]

Answer:

If you meant 9^x+4=11, then the answer is approximately 0.866.

If you meant 9^{x+4}=11, then the answer is approximately -2.909 which looks like what you meant based on the choices.

Step-by-step explanation:

9^x+4=11

First step is to get the exponential part by itself. The part that has the variable exponent which is the 9^x term.

To do this we need to subtract 4 on both sides:

9^x=11-4

Simplify:

9^x=7

The equivalent logarithmic form is:

\log_9(7)=x

I always say to myself the logarithm is the exponent that is how I know what to put opposite the side containing the log.

Anyways if you don't have options for computing \log_b(a) in your calculator you need to use the change of base formula.

\frac{\log(7)}{\log(9)}=x

So x \approx 0.8856

I don't see this as a choice so maybe you actually meant the following equation:

9^{x+4}=11

Let's see if this is the correct interpretation.

So the exponential part is already isolated.

So we just need to put in the equivalent logarithmic form:

\log_9(11)=x+4

Now we subtract 4 on both sides:

\log_9(11)-4=x

Again if you don't have the option for computing \log_b(a) in your calculator, you will have to use the change of base formula:

\frac{\log(11)}{\log(9)}-4=x

x \approx -2.909

6 0
3 years ago
A circular tablecloth has a diameter of 70 inches. Max wants to add a decorative fabric around the edge of the tablecloth.Approx
JulijaS [17]

Answer:

219.8

Step-by-step explanation:

you multiply 70 and 3.14 and get 219.8

5 0
2 years ago
Find the equation of the line that is perpendicular to y = 2x + 8
Natasha2012 [34]

Answer:

\boxed {\boxed {\sf B. \ y= - \frac{1}{2} x-4}}

Step-by-step explanation:

We are given the line y=2x+8. It is in slope-intercept form or y= mx+b, where m is the slope and b is the y-intercept.

The slope of the line is 2.

We want to find the equation that is perpendicular. Perpendicular lines have negative reciprocal slopes.

1. Negate

  • Negate the slope, or switch the sign
  • (+) 2 --> -2

2. Reciprocal

  • Flip the numerator and denominator of the slope.
  • -2/1 --> -1/2

The perpendicular slope is -1/2, so the correct equation must be B.

6 0
2 years ago
Match each variable with what it represents in a sequence formula.
kvasek [131]

Answer:

gay

Step-by-step explanation:

5 0
3 years ago
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