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3 years ago

4 / 500 in scientific notation would be?

Mathematics

1 answer:

Lubov Fominskaja [6]3 years ago

3 0

4/500=0.008

scientific notation form = 8 x 10^9

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Place decimal points in 34, 4, and 417 so that the sum of the three numbers is 7.97.

KIM [24]

3.4+0.4+4.17=7.97 you just have to try different combinations of different numbers with the decimals.

8 0

3 years ago

If points A, B, and Clie on a line, then AB + BC = AC. always sometimes never

nadya68 [22]

Answer:

Always

Step-by-step explanation:

we know that

If points A, B, and C lie on a line, the the sum of the length of segment AB plus the length of the segment BC is always the length of segment AC

AC=AB+BC

4 0

3 years ago

Find the distance CD rounded to the nearest tenth (5-2)^2 +(6-2)^2

amid [387]

(5−2)^2+(6−2)^2 = 25

(3)^2 + (4)^2

(9) + (16) = 25

3 0

3 years ago

What's the word phrase for 2(5-n)

solmaris [256]

I would say: 2 times 5 less a number.

5 0

3 years ago

← How many solutions does this linear system have y = x+2 6x - 4y = -10

defon

Answer:

This linear system has one solution.

Step-by-step explanation:

First equation: y = x + 2

Second equation: 6x - 4y = -10

Let's change the second equation in slope-intercept form y = mx + b.

Slope-intercept form

y = mx + b

m ... slope

b ... y-intercept

$6x - 4y = -10$

$6x + 10 = 4y$

$\frac{6}{4}x + \frac{10}{4} = y$

$\frac{3}{2}x + \frac{5}{2} = y$

If two lines have the same slope but different y-intercept, they are parallel - system has no solutions.

If two lines have the same slope and the same y-intercept, they are the same line and are intersecting in infinite many points - system has infinite many solutions.

If two lines have different slopes then they intersect in one point - system has one solution.

We see that lines have different slopes. First line has slope 1 and the other line has slope $\frac{3}{2}$ . So the system has one solution.

You can also check this by solving the system.

Substitute y in second equation with y from first.

6x - 4y = -10

6x - 4(x + 2) = -10

Solve for x.

6x - 4x - 8 = -10

2x = -2

x = -1

y = x + 2

y = -1 + 2

y = 1

The lines intersect in point (-1, 1). <-- one solution

8 0

1 year ago