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Gennadij [26K]
4 years ago
9

Last week, Tina worked 40 hours in 4 days. She worked the same number of hours each day. How many hours did she work each day? W

hich equation below matches this situation.
Mathematics
1 answer:
blsea [12.9K]4 years ago
3 0

She works 10 hour per day

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About what point on parabola y=x^2 is 5 units away from the origin along the curve
konstantin123 [22]

the distance from the origin is 5, so

sqrt(x²+y²)=5

x²+y²=25

substitue y=x²

y+y²=25

y²+y-25=0

solve using calculator or the formula

to get

y =( -1+sqrt(1+4*25))/2

or y = (-1-sqrt(1+4*25))/2

the second solution is rejected because a square cannot be negative

the value of x is the positive or negative (sqrt... or -sqrt...) or y

4 0
4 years ago
What are the values of a band on the quadratic equation -2x4+ 4x – 3 = 0?<br>​
soldier1979 [14.2K]

Answer:

A= -2

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C =-3

Step-by-step explanation:

6 0
3 years ago
The caloric density of foods is a useful tool when comparing calorie counts. The table shows typical serving sizes for several f
mezya [45]

Answer:

Medium apple < Large hard boiled egg < raisins < cheddar cheese

Step-by-step explanation:

1. Cubic inch cheddar cheese ;

Cal per 100g = cal(c) / grams(g)

Cal per 100g = 69 / 17 = 4.0588cal/g

approximately 4.1cal/g

2. Large hard boiled egg;

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3. Medium apple;

Cal per 100g = cal(c) / grams(g)

Cal per 100g = 72 / 138 = 0.52cal/g

4. Raisins;

Cal per 100g = cal(c) / grams(g)

Cal per 100g = 129 / 43 = 3cal/g

The foods with the lowest density to the highest is,

Medium apple < Large hard boiled egg < raisins < cheddar cheese

6 0
4 years ago
Which decimal has the greater value: 8,516.50 or 8,516.90?
Lerok [7]
8,516.90 has the greater value.

4 0
4 years ago
Read 2 more answers
Y/4+5/9=y/9-5/9<br><br>solve the equation is it a number or does it not have a solution
Paladinen [302]
Google it and you will see the answer
4 0
3 years ago
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