Ask question

Ask question

All categories

2 years ago

7

Handedness: 18 left-handed

2 answers:

guapka [62]2 years ago

6 0

Answer:

Let x be the number of left handed female students and let y be the number of left handed male students.

Then the number of right handed female students will be 5x and the number of right handed male students will be 9y. Since the total number of left handed students is 18 and the total number of right handed students is 122, the following system of equations must be satisfied.

x+y=18 and 5x+9y=122

Solving this system gives x=10 and y=8.

Thus, 50 of the 122 right handed students are female. Therefore, the probability that a right handed student selected at random is female is the fraction 50/122

which to the nearest thousandth is 0.410.

T is average time spend by shoppers in minutes

N average number of shoppers.

Here, shoppers/hour =84.

Hence r=

60

84

T=5

Hence N=rT=

60

84

×5=7

Average number of shoppers waiting at checkout =7

Deffense [45]2 years ago

6 0

Answer:

EMMA ITS KAIDN. text back.

Step-by-step explanation:

I had already answered this.

You might be interested in

What is an equation in slope-intercept form for the line that passes through the points (1, -3) and (3,1)

DedPeter [7]

The last one y=2x-5 if you plug the points into the x and y values you can see this equation works for both points.

5 0

2 years ago

What does the 75th term look like of 6,9,12

leva [86]

Answer:

228

Step-by-step explanation:

We are adding 3 each time so general rule is

Tn= 3n + 3

Therefore

T= 3(75)+3

= 228

3 0

3 years ago

Read 2 more answers

Identify the equation for the circle with center (3, 7) that contains the point (9, 11).

Finger [1]

Answer:

$(x-3)^2+(y-7)^2=2\sqrt{13}$

Step-by-step explanation:

The equation of a circle:

$(x-h)^2+(y-k)^2=r^2$

(h, k) - center

r - radius

We have the center (4, -3) and the point on the circle (9, -3).

The length of radius is equal to the distance between a center and an any point on a circle.

The formula of a distance between two points:

$r=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Susbtitute:

$r=\sqrt{(9-3)^2+(11-7)^2}\\\\=\sqrt{6^2+4^2}\\\\=\sqrt{52}\\\\=2\sqrt{13}$

The center (3, 7) → h = 3, k = 7.

Finally we have:

$(x-3)^2+(y-7)^2=2\sqrt{13}$

8 0

3 years ago

Do I have the right answer?

Vsevolod [243]

Yes, I think I’m not sure correct me if I’m wrong .

3 0

3 years ago

The energy released by respiration originally came from the

Annette [7]

Answer:

false i think sorry if it is wrong

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers