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lbvjy [14]
3 years ago
7

HELP, please!! What is the area of a trapezoid ABC?

Mathematics
2 answers:
MrRa [10]3 years ago
5 0

Answer:

<h2>26 feet squared</h2>

Step-by-step explanation:

Area of trapezoid:

\frac{1}{2}  \times  \: sum \: of \: parallel \: sides \:  \times height

plugging the values:

\frac{1}{2}  \times (21 + 5) \times 2

Calculate the sum

\frac{1}{2}  \times 26 \times 2

Reduce the numbers with G.C.F 2

13 \times 2

Calculate the product

26 feet squared.

Hope this helps...

Best regards!

Shtirlitz [24]3 years ago
3 0
It’s c just to let you know I have done this before
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katovenus [111]

Answer:

$53.82

Step-by-step explanation:

6.3 / 0.35=18

$2.99 x 18= $53.82

hope this halps :)

8 0
3 years ago
Given the equation Square root of 8x plus 1 = 5, solve for x and identify if it is an extraneous solution.
Kisachek [45]
Do recall that squaring and the *radical sign* cancel each other out... like so:(\sqrt{a})^{2}= a

When you put it that way, it isn't enough :P
(\sqrt{a})^{2}= a
(\sqrt{8x+1})^{2}=?

so you start with
(\sqrt{8x+1})^{2}= (5)^{2}
8x+1=25 <-- subtract 1 to both sides
8x=24 <- divide 8 to both sides
x= 3

To find out if it's an extraneous solution ask yourself: It mustn't result in a radical that I like to call... 'illegal'. Plug it into the radicand 8x+1 and make sure you get something that is not a negative number.... so, DO you get a negative number when you plug in x = 3 into the radicand?

(extraneous solution is a invalid solution)

x=3 not extraneous


6 0
3 years ago
Read 2 more answers
Which of the following is an arithmetic sequence?–20, –25, –30, –35, –45, ...
timurjin [86]
B) -15.6,-12.9,-10.2,-7.5,-4.8

This is an arithmetic sequence. 
4 0
3 years ago
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The sides of a triangle are represented by 3x-1, 4x+7, and 2x +11. What is th
Finger [1]

Answer:

9x + 17

Step-by-step explanation:

(3x - 1) + (4x + 7) + (2x + 11)

= 3x - 1 + 4x + 7 + 2x + 11

= 3x + 4x + 2x - 1 + 7 +11

= 9x + 17

5 0
10 months ago
The difference of two numbers is 8. If the sum of the smaller number and the square of the larger
galben [10]

Answer:

12

Step-by-step explanation:

12^2 is the greatest number that is closest to 148. then there is 4 as the smaller number 12-4=8

144+4=148

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3 years ago
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