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Nikolay [14]
3 years ago
12

In standard form, the number 72105.4 is written as 7.21054 × 10n where n is equal to ________.

Mathematics
1 answer:
mafiozo [28]3 years ago
6 0

Answer: n = 4

Step-by-step explanation:

n is always equal to the number of times 10 could be raised to so as to make a total of the number in question.

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deon earned a total of $61 from selling jewelry at a fair. He earned $5 for selling one necklace. He also earned $8 for each bra
Elis [28]

Answer: 7

Step-by-step explanation:

8x +5 = 61

subtract 5 from both sides

8x = 56 divide both sides by 8 to get x by itself

x= 7

7 0
3 years ago
[14 POINTS AND BRAINLIST ❗️]
julsineya [31]

Answer:

d

Step-by-step explanation:

6 0
3 years ago
Find x- and y-intercepts. Write ordered pairs representing the points where the line crosses the axes. 2x+3y=6
sweet-ann [11.9K]

Answer:

x-intercept: (3, 0)

y-intercept: (0, 2)

Step-by-step explanation:

For a function like:

y = f(x)

The x-intercept is the value of x when y = 0

the y-intercept is the value of y when x = 0

Also remember that an ordered pair is written as (x, y).

In this case we have the equation:

2*x + 3*y = 6

For the x-intercept, we just replace y by zero in the equation, then we get:

2*x + 3*0 = 6

Solving this for x, we get:

2*x = 6

x = 6/2 = 3

Then in this case, the ordered pair for the x-intercept is (3, 0)

For the y-intercept, we just need to replace x by zero in the equation:

2*0 + 3*y = 6

Solving this for y, we get:

3*y = 6

y = 6/3 = 2

Then the ordered pair for the y-intercept is (0, 2)

8 0
3 years ago
What is the value of x in the equation 13 x minus 2 (8 + 5 x) = 12 minus 11 x?
zavuch27 [327]

Answer:

x = 2

Step-by-step explanation:

<u>Step 1:  Convert words into an expression</u>

What is the value of x in the equation 13 x minus 2 (8 + 5 x) = 12 minus 11 x?

13x - 2(8 + 5x) = 12 - 11x

<u>Step 2:  Distribute</u>

13x - 2(8 + 5x) = 12 - 11x

13x - 16 - 10x = 12 - 11x

<u>Step 3:  Solve for x</u>

13x - 16 - 10x + 11x + 16 = 12 - 11x + 11x + 16

14x / 14 = 28 / 14

x = 2

Answer:  x = 2

5 0
3 years ago
Read 2 more answers
What is the area of a triangle with vertices at (−4, 1) , ​ (−7, 5) ​ , and ​ (0, 1) ​ ?
Mekhanik [1.2K]
Plot the points on a graph. Connect the dots into a triangle. See that the height of the triangle is from y=5 down to y=1. So the height is 4 units.
 Area of a triangle: A = (1/2)BH

You need to find the length of the base. Which is from point (-4,1) to (0,1). You can use the distance formula r just see from the graph that the base is 4 units.

A = (1/2)(4)(4)
A = 8

** Distance formula fyi
d² = (X-x)² + (Y-y)²
with points (X,Y) and (x,y)
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3 0
3 years ago
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