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2 years ago

Which of the following is a statistical question?

2 answers:

5 0

The answer would be A since in that case its a percentage and there can be multiple answers. In the other questions, there is a definitive answer for it.

Hope this helps :)

Morgarella [4.7K]2 years ago

4 0

Answer: A

Step-by-step explanation:

The number of people liking sandwiches would be different while the other options is a fact.

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Find the length of segment ST A) 74 units B) 12 units C) 10 units D) 74 units

vodomira [7]

74 units would be your answer for the length segment

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3 years ago

Please help asap algebra 1

damaskus [11]

Answer:

Step-by-step explanation:

7+7+3= 17

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3 years ago

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Roy worked for 2 hours and earned $12. how many hours must he work at the same rate to earn $36? hours worked 2 ? dollars earned

kotegsom [21]

2hr=$12
1hr=12/2= $6/hr
$36=1hr/$6= 6hr for $36
If he worked 3hr he would get (6*3)= $18
If he worked 4 hours he would get (6*4)= $24
I hope this answers your question

7 0

2 years ago

leonhard wants to place a triangular-based cabinet in the corner of his rectangle-shaped living room. the triangular base has a

Georgia [21]

The answer is $x = \frac{-7+ \sqrt{193} }{4}$ .

There is very similar question on Brainly, in which dimensions of the living room are given (20 feet, 30 feet).
So, knowing this, we first need to calculate how much 6% of the living room is.
The area of the living room is 600 square feet, since it is rectangle-shaped:
P = a * b = 200 feet * 30 feet = 600 square feet.

6% of 600 square feet is 36 square feet:
600 square feet : 100% = A : 6%
A = 600 * 6 / 100 = 36 square feet

The area of the triangular-based cabinet (A) is $A = \frac{a*h}{2}$ , where a is the base, and h is the height of the triangle.
It is given:
A = 36
a = 2x + 3
h = 3x + 6

Now, let's implement this to the formula $A = \frac{a*h}{2}$ :
$36 = \frac{(2x+3)(3x+6)}{2}$
⇒ $36*2=6 x^{2} +12x+9x+18$
$72=6 x^{2} +21x+18$

Let's both sides divide by 3:
$24=2 x^{2} +7x+6$
⇒ $2 x^{2} +7x-18=0$

This is the quadratic formula ( $a x^{2} +bx+c=0$ ) for which
$x = \frac{-b+\sqrt{b^{2} -4ac} }{2a}$ or
 $x = \frac{-b-\sqrt{b^{2} -4ac} }{2a}$ .
We will use only $x = \frac{-b+\sqrt{b^{2} -4ac} }{2a}$ , because the length cannot have negative value.

From the equation $2 x^{2} +7x-18=0$ , we know that
a = 2
b = 7
c = -18

Thus, $x = \frac{-7+ \sqrt{193} }{4}$ :
 $x= \frac{-b+ \sqrt{ b^{2} -4ac} }{2a} = \frac{-7+ \sqrt{ (7)^{2} -4*2*(-18)} }{2*2} = \frac{-7+ \sqrt{49+144} }{4} = \frac{-7+ \sqrt{193} }{4}$

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3 years ago

Evaluate the summation of 25 times 0.3 to the n plus 1 power, from n equals 2 to 10..

makkiz [27]

$\bf \sum\limits_{n=2}^{10}\ 25(0.3^{n+1}) \quad ?$ <--- is that it?

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2 years ago