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DaniilM [7]
3 years ago
9

Solve for x (4x + 10) (5x - 13)

Mathematics
1 answer:
Mice21 [21]3 years ago
7 0

Answer:

x = -2.5

x = 2.6

Step-by-step explanation:

4x = -10

divided both by 4

x = -2.5

5x = 13

divided by both 5

x = 2.6

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The Smiths want to fence their square garden, which has an area of 289 square feet. What would be the minimum amount of fencing
iVinArrow [24]

Answer:

68 feets of fencing

Step-by-step explanation:

Given that:

Area of square garden = 289 ft²

The side length of square garden can be obtained thus :

Area of a square = s²

Where s = side length

s² = 289

s = sqrt(289)

s = 17

Perimeter of square garden : 4s

Perimeter = 4* 17 = 68 feets

7 0
3 years ago
American kestrels live in More Mesa near your professor’s house. Suppose that there are 100 birds, of which a random sample of s
Ulleksa [173]

Answer:

P(X=3) = 0.2013

Step-by-step explanation:

After taking and tagging the first 20 birds, then we have a proportion of 20% of tagged birds within the population, that is

p=\frac{n}{N}

p=\frac{20}{100}=0.20

Supposing that the probability (0.20) of capturing a bird <em>remains constant</em>, we may resolve it as it follows:

Capturing 10 birds can be considered as a binomial experiment with a success probability p = 0.2

Let, P(X=x)=nCx*p^{x}*(1-p)^{n-x} be the expression of the binomial distribution, for our case we have:

p=0.2

x = 3

n=10

Then,

P(X=3)=10C3*0.2^{3}*0.8^{10-3}

P(X=x)=0.2013

Therefore, the probability that exactly 3 of the 10 birds in the new sample were previously tagged is 20.13%

5 0
3 years ago
What values of x are equivalent to (x − 5)(4x + 3) = 0?
liberstina [14]

Answer:

x¹= 5

x²= -(3/4)

Step-by-step explanation:

x¹= 5

x²= -(3/4)

4 0
3 years ago
Read 2 more answers
Cassidy wrote the linear equation y=5x+4. Then, she wrote the equation of the line that is parallel to y=5x+4 and that passes th
Sphinxa [80]
All you need to do is plug in the point.
y=5x+b
(-2) = 5(8) + b
-2 = 40 + b
b = -42
3 0
3 years ago
What does y equal according to this
saul85 [17]
It represents -2,but it's not exactly proven to be right
8 0
3 years ago
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