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2 years ago

What is each number in scientific notation? Drag the answer into the box to match each number. 0.0000855 ?8.55×10?5? 855,000

Mathematics

2 answers:

Vera_Pavlovna [14]2 years ago

7 0

I'm confused on what you're asking, but this is scientific notation on the first one of 0.0000855. 8.55 x 10^-5

mel-nik [20]2 years ago

5 0

Answer:

$8.55\times 10^{-5}$

Step-by-step explanation:

Given number,

0.0000855,

Since, scientific notation is way to write a large or small number as the product of a number between 0 to 9 and an exponent of 10,

Also, when we move the decimal towards right side to obtain the number between 0 to 9 the exponent of 10 is negative value of shifting otherwise it is positive value of shifting,

Thus, by the above explanation,

The scientific notation of the number 0.0000855 is $8.55\times 10^{-5}$

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I need help with the first two please

lesantik [10]

Answer:

1. 45 minutes a day cycling

2.$1.55 on each cup of coffee a day

Step-by-step explanation:

1. You would figure up how much he jogs per week by multiplying 15 times 5 which would be 75 minutes and then from there you would subtract 75 from 300 and get 225 and divide 225 and 5 and end up with 45

2. You would multiply $.75 by 4 to figure up how much he spends on donuts which is $3 and then subtract 15.40 from 3 and get 12.40 and divide 12.40 by 8 since he goes twice a day and end up with 1.55

3 0

2 years ago

Write an expression to represent the sum of three consecutive even numbers. Let C represent the first number in the series

Anna [14]

Let, the first number = C
second number will be = C + 2 ['cause next will be odd so we can't include that]
Third number = C + 4

Now, their sum would be:
C + C+2 + C+4 = 3C + 6

In short, Your Answer would be 3C + 6

Hope this helps!

7 0

2 years ago

Read 2 more answers

What is the range of y = (x - 5)^2 – 1?

Setler79 [48]

1. The graph is a parabola.

2. The parabola opens up, because there's no negative number in front of $(x-5)^2$ .

3. The vertext is (5,-1), because of the vertex form.

This means that that -1 will be the least y-value used on the graph and the garph will open up from there.

The range is (-1, infinity) or { y | y > -1 }.

8 0

2 years ago

<img src="https://tex.z-dn.net/?f=10x-16y%3D12%20%5C%5C%205x-3y%3D4" id="TexFormula1" title="10x-16y=12 \\ 5x-3y=4" alt="10x-16y

Molodets [167]

Answer:

24/25

Step-by-step explanation:

Step 1: Define systems of equation

10x - 16y = 12

5x - 3y = 4

Step 2: Rewrite one of the equations

5x = 4 + 3y

x = 4/5 + 3y/5

Step 3: Solve for y using Substitution

Substitute 2nd rewritten equation into 1: 10(4/5 + 3y/5) - 16y = 12
Distribute the 10 to both terms: 40/5 + 30y/5 - 16y = 12
Simplify the fractions down: 8 + 6y - 16y = 12
Combine like terms (y): 8 - 10y = 12
Subtract 8 on both sides: -10y = 4
Divide both sides by -10: y = 4/-10
Simply the fraction down: y = -2/5

Step 4: Substitute y back into an original equation to solve for x

Substitute: 5x - 3(-2/5) = 4
Multiply: 5x + 6/5 = 4
Subtract 6/5 on both sides: 5x = 14/5
Divide both sides by 5: x = 14/25

Step 5: Check to see if solution set (14/25, -2/5) is a solution.

Substitute into an original equation: 10(14/25) - 16(-2/5) = 12
Multiply each term: 28/5 + 32/5 = 12
Add: 12 = 12

Here, we see that x = 14/25, y = -2/5 and solution (14/25, -2/5) indeed works.

Step 6: Find x - y

x = 14/25

y = -2/5

Substitute: 14/25 - (-2/5)
Simplify (change signs): 14/25 + 2/5
Add: 24/25

Hope this helped! :)

6 0

2 years ago

Read 2 more answers

NEED HELP ITS A TEST!

jeka94

Answer:

X = -2 - y/3

Step-by-step explanation:

First you need to know the current equation, for that:

Notice that when Y = 0, X = 2.

When Y = 6, X = 0

Therefore the equation is X = $2-\frac{y}{3}$

To move that to the left of the X axis (negative direction) you just have to reduce the X number:

$x=-2 - \frac{y}{3}$

5 0

1 year ago