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Y_Kistochka [10]
4 years ago
14

HELP ASAP 5 STARS, THANKS, 20 POINTS, BRAINLIEST,

Mathematics
2 answers:
Bingel [31]4 years ago
5 0

Answer:

b.7

Step-by-step explanation:

you take the three and substitute that in for x.  2(3) + 1

2(3)=6 then add 1

vovikov84 [41]4 years ago
3 0

Answer:

7

Explanation:

You take the three and sub it for x

I am sure 100%!

Have a GR8 day!

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Find the probability that​ his/her household has four or more cell phones in use. Is it unlikely for a household to have four or
sineoko [7]

Answer:

Event not unlikely

Step-by-step explanation:

Probability is defined as  the likelihood of an event occurring.

P(E)=Event/Total \ outcomes

Total outcome,T_o=Total responses record which is:

T_o=218+296+362+148+142=1166

P_e=142

Therefore the probability of 4+ phones is

P(x\geq 4)=142/1166=0.1218

Since 0.1218>0.05, the event is not unlikely

5 0
4 years ago
Determine the measure of ∠DFB.
Umnica [9.8K]

Answer:

136

Step-by-step explanation:

Just took the test and got it right good luck with the rest

7 0
3 years ago
Read 2 more answers
An anthropologist studies a woman's femur that was uncovered in Madagascar. To estimate the woman's height, he uses the equation
Lelu [443]

Answer:

The inequality f>40 represents the length of the femur for which the woman had a height greater than 160cm.

Step-by-step explanation:

The given equation is

h=60+2.5f

Where, h is woman's height in centimeters and f is length of the femur in centimeters.

If woman's height is greater than 160cm, then

h>160

60+2.5f>160

Substract 60 from both sides.

2.5f>100

Divide both sides by 2.5.

f>40

Therefore the inequality  f>40 represents the lengths of the femur for which the woman had a height greater than 160cm.

5 0
4 years ago
5 x 100 + 4 x 10 + 6 x 1 + 2 x ( 1/10) + 8 x ( 1/1000) =?
Alexus [3.1K]

Answer:

68276/125

Step-by-step explanation:

500+40+6+1/5+1/125

546+26/125

68276/125

4 0
3 years ago
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The area of a circle is 9π in². What is the circumference, in inches? Express your answer in terms of \piπ
dangina [55]

Answer:

6\pi in

Step-by-step explanation:

The formula to find the area of a circle: \pi r^{2}, where r is the radius.

The formula to find the circumference (perimeter) of a circle: 2\pi r, where r is the radius.

1) To find the circumference of the circle, we need to find the radius (r) first. Since the area of the circle is given to us, we need to equate this to the formula to find the area of a circle.

9\pi =\pi r^2

Cancel the \pi by bringing it to the other side.

9 =\pi r^2 ÷ \pi

9 = r^2\\\sqrt{9} = r\\3 = r

2) Find the circumference of the circle by using the formula, 2\pi r.

=  2*\pi *3

= 6\pi in

3 0
3 years ago
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