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bekas [8.4K]
3 years ago
6

Simplify 5x * 1/x^-7 * x^-2 a) 5x b) 5x^−6 c) 5 d) 5x^6

Mathematics
2 answers:
Murljashka [212]3 years ago
6 0

Answer:b

Step-by-step explanation:

you need to subtract

Delicious77 [7]3 years ago
4 0

Answer:

The answer is B. 5x^-6 because you have to subtract

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Find the area of triangle DEF with vertices D(-1,2), E(3,-2) and F(-2,-2).*
Veronika [31]

Answer:

<em>The area of the triangle DEF is 10.</em>

Step-by-step explanation:

<u>Area of a Triangle:</u>

A triangle of base B and height H (both must be perpendicular) has an area of:

\displaystyle A=\frac{BH}{2}

The image below shows the triangle formed by the points DEF. It's important to notice the points E and F lie on the same horizontal line because they both have the same y-coordinate.

This fact simplifies the calculations since we can easily compute the length the of base as the difference of their x-coordinates:

B=3-(-2)=3+2=5

Being the base of a horizontal line, the height of the triangle can be calculated as the difference of y-coordinates of D and the height of that line.

H=2-(-2)=4

With these two values, we calculate the area:

\displaystyle A=\frac{5*4}{2}=10

The area of the triangle DEF is 10.

4 0
4 years ago
PLEASE I REALLY NEED HELP!
vagabundo [1.1K]

Answer:

\frac{3}{28}

Step-by-step explanation:

Probability (P) is calculated as

P = \frac{requiredoutcome}{count}

The first required outcome is a red sweet from a total of 3 + 5 = 8

P( red) = \frac{3}{8}

There are now 2 red left and a count of 7, since 1 has been eaten, thus

P( second red ) = \frac{2}{7}

P( red and red ) = \frac{3}{8}  × \frac{2}{7} = \frac{6}{56} = \frac{3}{28}

6 0
3 years ago
I don’t understand this, please help!
Luden [163]

Maybe write it down, like how you see other math problems.

And then solve it!

:D

8 0
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Bruh why do you have to self promote in Brainly of all places?

Step-by-step explanation:

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QUICK HELP!!! Daniel guesses that he scored a 95 on his science test. His actual score is 91. What is the percent error in Danie
bija089 [108]
The answer is %0.8635 hope this helps
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3 years ago
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