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Bond [772]
3 years ago
6

2(x+4)=18 help and hurry

Mathematics
2 answers:
daser333 [38]3 years ago
4 0

Answer:

x = 5

Step-by-step explanation:

2x + 8 = 18

2x = 10

x= 5

sammy [17]3 years ago
3 0

Answer:

11

Step-by-step explanation:

2x - 4 = 18

2x = 18 + 4

2x = 22 (divide both sides by 2 to get x)

2x/2 = 22/2

x = 11

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Uhhh please help me. I dont know why i dont understand this problem
Mariana [72]
The answer is A) because the parabola is less than 3 (open circle) and the line is greater than and equal to 3 (closed circle)
7 0
3 years ago
Sally is 10 years older than one fifth of her mother’s age. If Sally is 20 years old, how old is her mother?
slamgirl [31]

S = Sally

M = Mother

S = M/5 + 10

20 = M/5 + 10

20 - 10 = M/5

10 = M/5

M = 10 * 5

M = 50

----------------

Her mother is 50 yo

-----------------

50 : 5 + 10 = 20

the answer is good

4 0
3 years ago
Answer the dammm question and I will give you brainlist if you do the whole thing pleaseeeeee more then 1 person at least help m
kicyunya [14]

Answer:

the coordinate is (4,5)

he said it was negative when it is actually positive

Step-by-step explanation:

i think

8 0
2 years ago
Read 2 more answers
Find the area of an isosceles trapezoid, if the lengths of its bases are 16 cm, and 30 cm, and the diagonals are perpendicular t
Klio2033 [76]
For this case we have:
 a = 30 cm
 c = 16 cm
 We look for the length of the diagonal:
 d = x + y
 Where,
 For x:
 a ^ 2 = x ^ 2 + x ^ 2
 x = a / root (2) = 30 / root (2) = 21.2132 cm
 For y:
 c ^ 2 = y ^ 2 + y ^ 2
 y = c / root (2) = 16 / root (2) = 11.3137 cm
 The diagonal is:
 d = x + y
 d = 21.2132 + 11.3137
 d = 32.5269 cm
 Then, the height is:
 h = h1 + h2
 For h1:
 h1 = root (x ^ 2 - (a / 2) ^ 2) = root ((21.2132) ^ 2 - (30/2) ^ 2)
 h1 = 15 cm
 For h2:
 h2 = root (y ^ 2 - (c / 2) ^ 2) = root ((11.3137) ^ 2 - (16/2) ^ 2)
 h2 = 8 cm
 Finally:
 h = h1 + h2
 h = 15 + 8
 h = 23 cm
 Then, the area is:
 A = (1/2) * (a + c) * (h)
 A = (1/2) * (30 + 16) * (23)
 A = 529 cm ^ 2
 Answer:
 
the area of an isosceles trapezoid is:
 
A = 529 cm ^ 2
4 0
3 years ago
Whats the answer? i dont get it
worty [1.4K]
The answer is B. Not C that was my fault sorry.
5 0
3 years ago
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