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Nadusha1986 [10]
3 years ago
6

Where is error hellp

Mathematics
2 answers:
Lemur [1.5K]3 years ago
8 0

Answer: Step 2

Step-by-step explanation:

Note: Every positive number has two square roots: a positive square root and a negative square root. Step 2 should have been x+4 = ±11.

xeze [42]3 years ago
3 0

Answer:

Step 2

Step-by-step explanation:

Every positive number has two square roots.

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if 16 men can finish to contruct a bulding in 40 days how manny more men are needed to finish the contruction in 32 days​
Digiron [165]

Answer:

20 mens are needed to contruct a building in 32 days.

5 0
3 years ago
A savings account compounds interest, at a rate of 17%, once a year. John puts $1,000 in the account as the principal. How can J
Dafna1 [17]
The answer would be f(t)= 1000(1+0.75)^t
5 0
3 years ago
The base of the pyramid is a square what is the surface area if the pyramids height is 4 feet in the area of the base is 36 ft.?
KATRIN_1 [288]

Answer:

96 ft²

Step-by-step explanation:

The general formula for the surface area of a pyramid is:  

SA = \frac{1}{2}pl + B, were p = the perimeter of the base, l = the slant height and B = the area of the base

Since the area of the base is 36 ft², then each side is √36, or 6 ft. The perimeter is the sum of all the sides, so 6 x 4 = 24 ft.

Given the overall height of the pyramid is 4 feet, you can use the Pythagorean Theorem (a² + b² = c²) to find the slant height (hypotenuse) of the pyramid.  Using 3 feet for 'a' and 4 feet for 'b':

3² + 4² = c² or 9 + 16 = 25

25 = c² or c = 5

SA =  \frac{1}{2}(24)(5) + 36

SA = 60 + 36 = 96 ft²

8 0
3 years ago
The ratio of boys to girls
katrin2010 [14]
Are you sure this question is correct? It would be a decimal of 34.5 girls
8 0
3 years ago
Please answer this asap.
vodomira [7]
The answer would be 39.78
4 0
3 years ago
Read 2 more answers
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