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ExtremeBDS [4]
3 years ago
8

For each question, choose Yes or No to tell if the expressions are equivalent. Show all work and steps.

Mathematics
1 answer:
goldenfox [79]3 years ago
3 0

Answer:

1.) Yes

2.)No

3.)Yes

4.)No

Step-by-step explanation:

1.) 12.5 - 8.4 = 4.1

4.1 x 7.4 = 30.34

7.4 x 4.1 = 30.34

2.)24 - 1.6 = 22.4

22.4 / 3.2 =7

6.4 / 3.2 = 2

7 does not equal 2

3.) 7.4 + 12.5 = 19.9

19.9 - 8.4 = 11.5

7.4 + 4.1 = 11.5

11.5 = 11.5

4.)8 x 2.5 = 20

20 - 3.2 = 16.8

20 + 4.1 = 24.1

24.1 does not equal 16.8

You might be interested in
Z varies jointly with x, and y, and z=7 when x= 2, y= 2
fomenos

Answer:

56

Step-by-step explanation:

Complete question:

Z varies jointly with x and y , x=2 and y=2, z=7. Find z when x=4 and y=8 using joint variation . (I need the problem worked out step by step)

If z varies jointly with x, and y, this is expressed as;

z = kxy

If z=7 when x= 2, y= 2

7  = k(2)(2)

7 = 4k

k = 7/4

To get z when x= 4 and y = 8

z = kxy

z =7/4 (4)(8)

z = 7*8

z = 56

Hence the value of z is 56

7 0
3 years ago
A. y:24=6:y<br><br> Can someone please help me
Nikolay [14]

Answer:

y = ± 12

Step-by-step explanation:

Given

y : 24 = 6 : y, or in fraction form

\frac{y}{24} = \frac{6}{y} ( cross- multiply )

y² = 144 ( take the square root of both sides )

y = ± \sqrt{144} = ± 12

6 0
4 years ago
The first few steps in deriving the quadratic formula are shown. A table listing the first few steps in deriving the quadratic f
Nimfa-mama [501]

The answer is C

Step-by-step explanation:

5 0
3 years ago
What is the image point of (-9,5)(−9,5) after a translation right 3 units and down 2 units?
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Answer:

-6,3

Step-by-step explanation:

7 0
3 years ago
Create a set A with multiples of 5 that are less than 33.
Tresset [83]

Answer:

A={5,10,15,20,25,30}

Step-by-step explanation:

Theres no explanation

3 0
3 years ago
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