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Aleonysh [2.5K]
2 years ago
6

Evaluate B^2 for B= -4. O 8O -8O 16 O -16​

Mathematics
1 answer:
yulyashka [42]2 years ago
7 0

Answer is 16

Hope it helps

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Anyone know I’m having a hard time!
Rudiy27

Answer:

x = \sqrt{30}

Step-by-step explanation:

Applying altitude- on - hypotenuse theorem.

(leg of large Δ )² = ( part of hypotenuse below it ) × ( whole hypotenuse )

x² = 3 × (3 + 7) = 3 × 10 = 30 ( take square root of both sides )

x = \sqrt{30}

5 0
3 years ago
Add:(3x2 - 5x + 6) + (9 - 8x - 4x2)​
finlep [7]

You can see by the image how did I get the answer

3 0
3 years ago
Help it says to make a triangle and I don't know wut I'm doing wrong. I already got (6,4) like a lot of ppl said but it still sa
Soloha48 [4]

Answer:

this is pythagorus theorem

the height is 7,2

the distance is d

d^2 = 5^2 + 4^2

hope this helps

3 0
2 years ago
A dog pen in the shape of a rectangle is to be built using one wall of a house as a side. If 132 feet
diamong [38]
This is a very poorly written question. im assuming the house wall is at least 130 ft since there is no information given about it.

each set of side lengths has three elements, the long side and the two short sides. we're asked to list all whole number possibilities so start anywhere, the two short sides being 1ft
(1 1 130). the long side has to be the difference of 132 and the length of both short sides.

the area is one of the short sides times the ling side, in the first case 1*130=130 sqft

continuing the list

(2 2 128) area=256
(3 3 126) area=378
(4 4 124) area=496
(5 5 122) area=610

the short sides increase by 1, the long side decreases by 2, the area gets bigger, but the difference between the areas are 4 less each time. dividing the first difference, 122, by 4 will give us a number to make a better guess from.

122÷4=30.5

so lets try

(30 30 72) area=2160

lets try 31 and see if that gives a smaller area

(31 31 70) area = 2170

(32 32 68) area =2176

(33 33 66) area = 2178

(34 34 64) area = 2176

so the area is decreasing now which means the maximum area is found when thw long side is 66 feet and the short sides are 33 feet.

as far as listing all possibilities, you see the pattern i started, i leave the rest to you
6 0
3 years ago
Which expression is equivalent to the following expression 3+13+3+13+3+13 : a) 3(13) b) 3(3+13) c)3×13 d) 3(3×13)
Alex Ar [27]

Answer:

The answer is B

Step-by-step explanation:

3+3+3+13+13+13

This is 3 times 3

This is also 3 times 13

Which would be 3(3+13)

8 0
2 years ago
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