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BlackZzzverrR [31]
3 years ago
5

If Kendra started working at 10:30 a.m. and left at 6:15 p.m., how many hours of work should she record for the day on her time

card?
Mathematics
2 answers:
JulsSmile [24]3 years ago
7 0
<span>From 12 PM to 6 PM is 6 hours From 11 AM to 12 PM is 1 hour We are left with 30 minutes (from 10:30 AM to 11 AM) + 15 minutes (from 6 PM to 6:15 PM), so total time (add up what we have) is 7 hours and 45 minutes.</span>
quester [9]3 years ago
7 0

Answer:

7.75

Step-by-step explanation:

apex

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Please help me with both questions!!!!​​
Naya [18.7K]

Answer:

Step-by-step explanation:

16.

points are (0,-3),(2,1),(4,-3)

eq. of line through (0,-3) and (2,1) is

y+3=\frac{1+3}{2-0}(x-0)

or y+3=2x

2x-y=3

as the line is dotted so either < or >.

consider 2x-y>3

put x=0,y=0

0>3

which is not possible .

(0,0) does not satisfy the inequality

Hence shaded region is the required region.

now eq of line through (2,1)and (4,-3) is

y-1=\frac{-3-1}{4-2}(x-2)

y-1=-2(x-2)

y-1=-2x+4

2x+y=5

it is also a  dotted line so either < or >

consider 2x+y<5

put x=0,y=0

0<5

which is true.

so (0,0) satisfy this inequality.

so the two inequalities are

2x-y>3

and 2x+y<5

17.

consider the points (0,4),(2,3),(4,4)

eq. of line through (0,4) and (2,3) is

y-4=\frac{3-4}{2-0}(x-0)

y-4=-1/2(x)

2y-8=-x

or x+2y=8

as the line is solid

so either≤ or ≥

consider x+2y≥8

put x=0,y=0

0≥8

which is impossible.

(0,0) does not satisfy the graph.

which is true as graph lies above the line.

again eq. of line through (2,3) and (4,4) is

y-3=\frac{4-3}{4-2}(x-2)

y-3=1/2(x-2)

2y-6=x-2

x-2y=-4

consider x-2y≤-4

put x=0, y=0

0≤-4

which is impossible.

so (0,0) does not satisfy the graph.

so inequality is true as shaded portion is above and left of the line.

so two inequalities are

x+2y≥ 8

and x-2y≤-4

5 0
3 years ago
Please help ASAP <br> 16. Find the perimeter.<br> 10<br> 60°<br> 16
vladimir2022 [97]

Answer:

I think its 46, hope this helps!!!

6 0
2 years ago
For a certain population of sea urchins, 16% are longer than 8 inches. A random sample of 75 sea urchins will be selected. What
Alona [7]

Answer:

0.042

Step-by-step explanation:

Given :

p = 16% = 0.16

q = 1 - p = 1 - 0.16 = 0.84

Sample size, n = 75

The standard deviation of sampling distribution :

√(pq)/n

√(0.16 * 0.84) / 75

√0.1344 / 75

√0.001792

Standard deviation of sampling distribution = 0.0423320

4 0
2 years ago
What is the difference of the polynomials?
DedPeter [7]
 m^2*n^2                                    -   7
                 - mn                           -4
-------------------------------------------------
m^2*n^2  -  mn  - 11   (answer)
4 0
3 years ago
The number of 84 can be expressed as the sum of 54 + 30. Which shows how to use the distributive property to rewrite that sum as
Pepsi [2]
I hope this helps you

7 0
3 years ago
Read 2 more answers
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