3 years ago

PLEASE ANSWER ASAP! (SHOW WORK)

Mathematics

1 answer:

inna [77]3 years ago

3 0

Answer:

To answer your question use the code ICE on here to get your answer works every time for me hope this helps

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Pls answer with real answers only thank you (3)

DENIUS [597]

Answer:

15*20=300

15*16=240

20*57=1140

300+240+1140=<u><em>1680cm squared</em></u>

4 0

3 years ago

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Question 4 Multiple Choice Worth 1 points)

icang [17]

Answer:

x=104/8

Step-by-step explanation:

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3 years ago

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The 4th term of an arithmetic sequence is 1. The 10th term of the same sequence is -2. Which is an explicit formula for this seq

blagie [28]

Answer:

The first term is 2.5

Step-by-step explanation:

The first term is 2.5 and it decreases 0.5 each time.

x= -0.5n+2.5

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4 years ago

Solve 2x2 + 12x - 14 = 0 by completing the square

vovangra [49]

Answer:

Step-by-step explanation:

$(a+b)^2=a^2+2ab+b^2\qquad(*)\\\\\\2x^2+12x-14=0\qquad\text{divide both sides by 2}\\\\x^2+6x-7=0\qquad\text{add 7 to both sides}\\\\x^2+2(x)(3)=7\qquad\text{add}\ 3^2=9\ \text{to both sides}\\\\\underbrace{x^2+2(x)(3)+3^2}_{(*)}=7+9\\\\(x+3)^2=16\Rightarrow x+3=\pm\sqrt{16}\\\\x+3=-4\ or\ x+3=4\qquad\text{subtract 3 from both sides}\\\\x=-7\ or\ x=1$

5 0

4 years ago

Find the volume (in cubic yards) of a rectangular solid with length 3.8 yards, width 2.2 yards, and height 2.3 yards.

Aliun [14]

Answer:

19.228

Step-by-step explanation:

multiply 2.2*2.3*3.8 to get 19 yd^3

6 0

2 years ago