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Lisa [10]
3 years ago
15

4,5,6,7,8 , please hellppppp , i’m stuck . i will mark brainliest to the first person who gets them righttt

Mathematics
1 answer:
Volgvan3 years ago
8 0
4)
ordered pairs : (-5,4)(-3,2)(2,6)(-3,-5) it is not a function because it repeats x’s
5)
ordered pairs : (4,5)(2,5)(1,-3)(-2,-2) it is a function because it is NOT repeating x’s
6)
(2,6)(6,8)(6,10)(8,12) it is not a function because it repeats x’s
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On avarage kayla drinks 3/4 of an 6 ounce glass of water 1/6 of an hour.How much water does she drink, in glasses per hour?
jonny [76]

Answer:

4.5 ounces

Step-by-step explanation:

3 0
3 years ago
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If h(x) = 4x - 3, what is an equation for h-1(x)?
AleksandrR [38]

Answer:

h(x-1)=4x-7

Step-by-step explanation:

Given :

h(x)=4x-3

Now,

putting the value of x =x-1

h(x-1)=(4(x-1)-3)

h(x-1)=4x-4-3

h(x-1)=4x-7

Answer will be h(x-1)=4x-7

7 0
3 years ago
If 3(x + 2) = 5 (x - 8), what is the value of x + 2?<br><br> 23<br><br> 25<br><br> 40<br><br> 46
Setler79 [48]

Answer:

23

Step-by-step explanation:


8 0
3 years ago
Times for a surgical procedure are normally distributed. There are two methods. Method A has a mean of 33 minutes and a standard
lilavasa [31]

Answer:

Method A.

Step-by-step explanation:

For solving this question we need to find out the z-scores for both methods,

Since, the z-score formula is,

z=\frac{x-\mu}{\sigma}

Where, \mu is mean,

\sigma is standard deviation,

Given,

For method A,

\mu = 33

\sigma=8

Thus, the z score for 34 is,

z_1=\frac{34-33}{8}=0.125

While, for method B,

\mu = 37

\sigma = 4

Thus, the z score for 34 is,

z_2=\frac{34-37}{4}=-0.75,

Since, z_1 > z_2

Hence, method A is preferred if the procedure must be completed within 34 minutes.

8 0
4 years ago
An alloy composed of nickel, zinc, and copper in a 4:1:2 ratio. How many kilograms of each metal are needed to make 35 kg of thi
vredina [299]

Step-by-step explanation:

The total number of parts is 4 + 1 + 2 = 7.

Nickel is 4/7 of the mass: 4/7 × 35 kg = 20 kg.

Zinc is 1/7 of the mass: 1/7 × 35 kg = 5 kg.

Copper is 2/7 of the mass: 2/7 × 35 = 10 kg.

5 0
4 years ago
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