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sveta [45]
3 years ago
15

Help needed with this

Mathematics
2 answers:
slavikrds [6]3 years ago
7 0

Answer:

el 3

Step-by-step explanation:

BigorU [14]3 years ago
4 0

Step-by-step explanation:

step 1. a function must only have a single y value for each x value.

step 2. for the input x, there can only be one output or result y.

step 3. #1 is a function because for each x there is only one y.

step 4. #2 and #3 are functions also.

step 5. #4 is not a function because (1, 1) and (1, -1) says x is 1 but the y is both 1 and -1 (2 values)

step 6. (2, 2) and (2, -2) also makes #4 not a function.

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Originally the dimensions of a rectangle were 20cm by 23cm. When both dimensions were decreased by the same amount, the area of
SIZIF [17.4K]
The answer is 17cm by 20cm.
The original area is 460cm (20x23), minus 120cm gives a new area of 340cm.
20cm-3cm=17cm and 23cm-3cm=20cm
17cmx20cm = 340cm
6 0
3 years ago
480kg of concrete mix. sand and gravel in the ratio 1:3:4
Anestetic [448]

Answer:

Step-by-step explanation:

1+3+4 = 8

480 / 8 = 60

60 x 1 = 60 (concrete)

60 x 3 = 180 (sand)

60 x 4 = 240 (gravel)

60:180:240

4 0
3 years ago
If 1/2 cup of fruit cocktail 13g of sugar, then 1 1/4 cup of fruit cocktail contains how many grams of sugar?
BARSIC [14]

Answer: 32.5g of sugar

Step-by-step explanation:

if 1/2 cup of fruit cocktail is 13g of sugar then half of that, or 1/4 cup is going to be 6.5g of sugar. With that in mind, multiplying our 1/2 by 2 to give us one full cup of fruit cocktail will tell us that there is 26g of sugar in one cup. Adding our 1/4 cup to our whole cup will give us 32.5g of sugar in 1 1/4 cups of fruit cocktail.

3 0
3 years ago
Read 2 more answers
A rectangular swimming pool is 19 meters long, 13 1 2 meters wide, and 1 1 2 meters deep. What is its volume?
Whitepunk [10]

Answer:

The volume of the rectangular swimming pool is 384.75\ m^{3}  or  384\frac{3}{4}\ m^{3}

Step-by-step explanation:

we know that

The volume of the rectangular swimming pool is equal to

V=LWH

we have

L=19\ m

W=13\frac{1}{2}\ m=\frac{13*2+1}{2}=\frac{27}{2}\ m

H=1\frac{1}{2}\ m=\frac{1*2+1}{2}=\frac{3}{2}\ m

substitute

V=(19)(\frac{27}{2})(\frac{3}{2})

V=\frac{1,539}{4}=384.75\ m^{3}

Convert to mixed number

384.75=384\frac{3}{4}\ m^{3}

8 0
3 years ago
Please help .!!!!!!!!!!!!!!!!!!!
Yanka [14]

((V/π)(3/4))1/3 = R so I would say possibly the second one

6 0
3 years ago
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