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Alex
4 years ago
14

What number must be added to the expression below to complete the square. x^2-18x

Mathematics
2 answers:
devlian [24]4 years ago
5 0
81
Hope that helped ya!
nikdorinn [45]4 years ago
5 0

Answer: 81

Step-by-step explanation:

A P E X

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Frannie currently weighs 41 pounds. The vet would like to see her weigh 36 pounds. What percent of her body weight does she need
baherus [9]
Frannie’s vet would like her to lose 12% of her body weight. You find this by subtracting 41-36=5 and then finding that .12x41 also equals 5, therefore 12% of 41 is 5.
3 0
3 years ago
A rectangle has length (x + 5)cm and width (x –2)cm. Its area is 60 cm 2
Ksivusya [100]

Area = length x width

60 = (x+5) (x-2)

60 = x^2 + 3x -10

Subtract 60 from both sides:

x^2 +3x -70 = 0

Solve for x by finding 2 numbers when added together = 3 and when multiplied by each other = -70

x = -10 and 7

Since the sides have to be a positive number we need to use 7

The length = x+5 = 7+5 = 12 cm

The width = x-2 = 7-2 = 5 cm

7 0
3 years ago
What is the formula for mortgages?
professor190 [17]

Answer:

Loan payment = Loan amount / Discount factor

Number of Periodic Payments (n) = Payments per year times number of years. Periodic Interest Rate (i) = Annual rate divided by number of payments per. Discount Factor (D) = {[(1 + i) ^n] - 1} / [i(1 + i)^n]

Step-by-step explanation:

7 0
3 years ago
Find what y is -5y - 2 > 30.5
Sav [38]
It is 25.5 is the correct answer have a nice day
8 0
3 years ago
Write "yes" or "no" to state whether or not the given side lengths would form a right triangle.
Slav-nsk [51]

Answer: No

Step-by-step explanation:

To find out if it is a right triangle then use the formula  a^2 + b^2 = c^2 where a and b are the legs which are the two small sides  and c is the hypotenuse the longest side.  Input the values for  a, b, and c and solve.

a = 12

b = 16

c= 25

12^2 + 16^2 = 25^2

144 + 256 = 625

   400 = 625

This means that it is not a right angle because 400 does not equal to 625.

7 0
3 years ago
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