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3 years ago

What value of x makes the equation true for the equation 25 = 2x -4?

Mathematics

1 answer:

9966 [12]3 years ago

5 0

Answer:

29/

Step-by-step explanation:

that what i got

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3. A copy machine makes 60 copies per minute. A second

Brums [2.3K]

Answer:

Step-by-step explanation:

6 x 480 + 8 x 60 = 960..........

8 0

2 years ago

Consider multiplying 26.2 by 16.43 what would a mathematician say the answer is

IgorC [24]

In mathematics multiplying decimals is just like multiplying a whole number and ignoring the decimals., then just put the decimals in the answer – it is how many decimals does the two numbers combined.

First step:

Line the numbers on the right and do not a line the decimal points

26.2

× 16.43

Second Step:

Multiply the numbers starting on the right, just like multiplying a whole number and ignore the decimals.

26.2

× 16.43

786

1048

1572

+ 262

430466

Third step: add the products

26.2

× 16.43

786

1048

1572

+ 262

430.466 is the mathematician’s answer.

8 0

3 years ago

The table below shows randy breuers height in inches leading into his teen years. The graph below displays a scatter plot of the

-Dominant- [34]

The least-square regression line has a slope of:

m=(nΣxy-ΣyΣx)/(nΣx²-ΣxΣx)

and a y-intercept of:

b=(Σy-mΣx)/n

In this case: n=7, Σxy=4899, Σy=391, Σx=85, Σx²=1153 so

m=(7(4899)-391*85)/(7(1153)-85*85))=1058/846

b=(391*846-85*1058)/(7*846)=34408/846

So the line of best fit is:

y=(1058x+34408)/846 and if we approximated this as your answers see to have done....

y=1.25x+40.67

8 0

3 years ago

Read 2 more answers

(4, -3), (x, 1); slope -4

Alexandra [31]

Answer:

x = 3

Step-by-step explanation:

$m = \frac{y \frac{}{2} - y \frac{}{1} }{x \frac{}{2} - x \frac{}{1} }$