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Inessa05 [86]
3 years ago
15

Please help me ........

Mathematics
1 answer:
melamori03 [73]3 years ago
3 0
Its the first one for all three of the questions
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Using the formula F=1.8c +32, find the difference in degrees Fahrenheit between -11C and -80F
steposvetlana [31]
Farenhite conversion of -11℃:
1.8(-11)+32
-19.8+32
12.2℉

difference between 12.2℉ and -80℉:
12.2+80
92.2℉ difference
5 0
3 years ago
There were 60 ducks living in a pond. If the number living at the pond increased by 30%, how many ducks now live at the pond?
timama [110]

Answer:

78

Step-by-step explanation:

You take the original total: 60, and multiply it by 30 to get 1,800. You then divide 1,800 by 100 to get 18. 18 is your 30%. Now, you add the 30% to 60 getting your total number of ducks: 78.

The equation version:

\frac{a}{60} = \frac{30}{100}

It is just proportions.

3 0
3 years ago
Please help!!! &lt;3 Thanks! Rewrite the equation by completing the square. <img src="https://tex.z-dn.net/?f=4x%5E2-4x%2B1%3D0%
Xelga [282]

Answer:

(2x - 1)^2

Step-by-step explanation:

We can reverse engineer the solution...

to complete the square, we know (2x + __)^2 will generate the 1st term 4x^2

To generate the 2nd term, we will need -1, so (2x - 1)^2....

When expanded, we will have 4x^2 - 4x + 1, which we completed the square.

7 0
4 years ago
The perimeter of a scalene triangle is 14.5 cm. The longest side is twice that of the shortest sidd.which equation can be used t
Likurg_2 [28]
Let S, M, L represent the shortest, mid-length, and longest sides, respectively. You are given three bits of information.
.. S +M +L = 14.5 cm
.. L = 2S
.. L = 6.2 cm
You can use an equation something like this to find the middle-length side.
.. (6.2 cm)/2 +M +6.2 cm = 14.5 cm
.. M +9.3 cm = 14.5 cm . . . . . . . . . . . . . constant terms collected
.. M = 5.2 cm . . . . . . . . . . . . . . . . . . . . . subtract 9.3 cm

Now, you know the side lengths are 3.1 cm, 5.2 cm, 6.2 cm.
_____
You have not offered any choices for "which equation," so take your pick of those used here.
5 0
3 years ago
Josephine sleeps more than 7 hours each night. define a variable and write an inequality
laiz [17]

variable might be sleep

sleep>7(hours)

5 0
3 years ago
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