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3 years ago

Which equation is an identity?

Mathematics

2 answers:

Yakvenalex [24]3 years ago

8 0

C. 3w + 8 - w = 4w - 2(w - 4)

(3w - w) + 8 = 4w - 2w -2(-4)

2w + 8 = 2w + 8

Andrews [41]3 years ago

5 0

I think
C. 3w+8-w=4w-2(w-4)

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What is the value of x?

Gwar [14]

Answer:

Step-by-step explanation:

First count the number of sides. There are 6 sides.

Now use the formula

(n - 2) * 180 To determine the total of all 6 angles.

(6 -2) * 180 =

4 * 180 = 720

Is that a 9 in x + 9 [lower left]? I'll assume so. Edited to show it was a 4.

x + 4 + 120 + x + 50 + 140 + 112 + x = 720 Combine

3x + 4 + 120 + 50 + 140 + 112 = 720

3x + 426 = 720 Subtract 431 from both sides

3x = 720 - 426 Combine

3x = 294 Divide by 3

x = 294/3

x = 98

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2 years ago

Kevin bought 4/6 pounds of pecans for $50.89. About how much was the cost per pound?

sukhopar [10]

Answer:

$76.33

Step-by-step explanation

1 divided by 4/6 = 3/2 =1.5

50.89 x 1.5 =$76.33

5 0

3 years ago

WILL GIVE BRAINLIEST. Need an answer ASAP!

Ksivusya [100]

Answer:

$BE=12 units$

Step-by-step explanation:

$We\ know\ that,\\In\ a\ rectangle\ all\ diagonals\ are\ equal\ and\ bisect\ each\ other.\\Hence,\\In\ Rectangle\ ABCD,\\AE=EC\\Hence,\\Substituting\ the\ values\ we\ get:\\x+4=3x-12\\Hence,\\-2x=-16\\x=\frac{-16}{-2}=8\\Now,\\We\ also\ know\ that,\\ AC=DB\\Hence,\\\frac{AC}{2}=\frac{DB}{2} \\Hence,\\DE=EB=AE=EC\\Hence,\\Since\ AE=BE,\\BE=x+4\\We\ already\ know\ that\ x=8.\\Hence, BE=8+4=12$

8 0

2 years ago

Ave: 7k- 14 = 42<br> How do you solve it

Misha Larkins [42]

Answer:

Im going to guess k is the unknown

Step-by-step explanation:

7k-14=42

42+14=7k

56=7k

56/7=k

k=8

4 0

3 years ago

Read 2 more answers

Bella has $540 to spend at a bicycle store for some new gear and biking outfits. Assume all prices listed include tax.

ASHA 777 [7]

Answer:

Bella spent 407.16 and has 132.84 left. she could buy like 2 outfits

Step-by-step explanation:

7 0

3 years ago