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Juli2301 [7.4K]
3 years ago
5

Write an expression that represents the sum of 7and x

Mathematics
2 answers:
Lady_Fox [76]3 years ago
6 0

Answer:

7 + x

Step-by-step explanation:

............................

Elena L [17]3 years ago
4 0

Answer:

Step-by-step explanation:

7+x

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What is the value of f(-3)
Readme [11.4K]

f(x)=\left\{\begin{array}{ccc}-2&if&x < -3\\4x&if&-3\leq x\leq-1\\x^2&if&x > -1\end{array}\right\\\\-3\leq-3\leq-1\to f(x)=4x\\\\f(-3)=4(-3)=-12

8 0
3 years ago
A) 20 milligrams of the drug lincomycin is to be given for each kilogram of a person's weight the drug is be mixed with 250 cc o
krok68 [10]

Answer:

you need to convert pounds to kilograms. 196 pounds is 88.904 kilograms. The directions tell you that 20 milligrams of the drug is to be administered for each kilogram of a person's weight. Now you need to multiply 88.904 by 20. That should give you 1778.08 milligrams of lincomycin. You would then mix 250 cc's of saline solution to the 1778.08 milligrams of lincomycin; but I think its just asking you how much lincomycin to administer.

at what rate per minute should the 250 cc solution be adminstered

4 0
3 years ago
If the length of the hypotenuse of a right triangle is 39 millimeters and the length of one leg is 15 millimeters what is the le
Genrish500 [490]

Answer:

36 millimeters

Step-by-step explanation:

From Pythagoras theorem, the square of the hypotenuse is equal to the sum of the square of the two other legs

In mathematical terms;

a^2 = b^2 + c^2

Let a represent the hypotenuse = 39 mm and the length of one leg, say c, is 15 mm

Slotting in the values of a and b

39^2 = b^2 + 15^2

1521 = b^2 + 225

collect like terms

1521 - 225 = b^2

1296 = b^2

Take the square root of both sides

36 = b

Therefore b = 36 mm

6 0
3 years ago
At an Italian store the price for T-shirt is 55 euros what is the price in US dollars
Zinaida [17]

Answer:

the current converson rate for euros to dollars is $1 (USD) = 0.91 Euros

so 55 euros would equal about 60.60 USD...

in other words, that better be one nice shirt

Step-by-step explanation:

8 0
3 years ago
Michael is in debt $45 dollars. He takes another loan out for $95.45. How much money is Michael in debt?
Anton [14]
Answer: 140.45

reasoning: 95.45 + 45

5 0
3 years ago
Read 2 more answers
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