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lisabon 2012 [21]
3 years ago
13

What is (x - 3)(x +9)

Mathematics
2 answers:
wel3 years ago
7 0

Answer:

x^2 +6x-27

Step-by-step explanation:

OleMash [197]3 years ago
4 0

Answer:

x^2 + 6x - 27

Step-by-step explanation:

FOIL

x(x) = x^2

x(-3) = -3x

x(9) = 9x

-3(9) = -27

x^2 + 9x + (-3x) + (-27)

x^2 + 6x - 27

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At 5 p.m., the total snowfall is 2 centimeters. at 10 p.m., the total snowfall is 10 centimeters. what is the mean hourly snowfa
TEA [102]

Answer:

The mean hourly snowfall is 2.5 centimeters

Step-by-step explanation:

The mean hourly snowfall is the number of centimeters that fell during the period divided by the number of hours.

From 5 P.M. to 9 P.M., there are 4 hours

At 5 P.M., the total snowfall is 2 centimeters.

At 9 P.M., the total snowfall is 12 centimeters.

So in those four hours, the depth of snow increases 12-2 = 10 centimeters

10/4 = 2.5

The mean hourly snowfall is 2.5 centimeters

7 0
2 years ago
What is 3/16 of 200 written as a percentage
Georgia [21]

The expression 3/16 of 200 expression as a percentage is; 6.25%.

<h3>What is the value of 3/16 of 200 written as a percentage?</h3>

The value of the expression given in the task content can be evaluated as follows;

3/16 × 200 = 12.5

Hence, the value 12.5 expressed as a percentage of 200 is;

(12.5/200) × 100%.

= 6.25%.

Read more on percentages;

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7 0
2 years ago
Triangle ABC = triangle blank
coldgirl [10]

Answer:

QPR

Step-by-step explanation:

It is triangle QPR because of the order of corresponding angles.

6 0
4 years ago
What is the value x in the right triangle
svp [43]

Answer:

D) 2*(sqrt)6

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Tony’s class needs more than $500 for the school dance. So far, they have raised $200. They plan to have a car wash, charging $8
anzhelika [568]
<h2><em><u>PLZ MARK BRAINLIEST</u></em></h2><h2><em><u></u></em></h2>

No, he is not correct for if they washed 37 cars they would have made a total of 296 dollars washing cars. Because this is an inequality, he needs to get a value equal too or greater than 300 dollars on car washes. Also, because he already has 200 dollars collected, you could write the inequality as "8x is greater than or equal to 300".

3 0
3 years ago
Read 2 more answers
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