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erik [133]
3 years ago
13

I need help Find the product. 45 × 40

Mathematics
2 answers:
Crazy boy [7]3 years ago
6 0
It’s is 1800

Hope this helps

Have a great day/night
blsea [12.9K]3 years ago
5 0
I also got 1,800 hope this helps :) sorry that I’m late
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The density of oxygen is 0.001429 grams per cubic centimeter. How is this number written in
Anika [276]

We have been given that the density of oxygen is 0.001429 grams per cubic centimeter. We are asked to write the given number in scientific notation.

To convert a number into scientific notation, we write the given number as product of two numbers. One factor is a number between 1 and 10, while the 2nd factor is power of 10.  

When a decimal is to the left of given number, then we need to move the decimal to right such that the number gets between 1 and 10. Then, we multiply the number by negative power of 10 that many times, we moved the decimal to right.    

We can see that decimal is to left of our number. To place decimal after 1, we have to multiply 10 to 3 times. To keep the value of number same we will multiply the same negative power (negative 3).

0.001429\times 10^3\times 10^{-3}

(0.001429\times 10^3)\times 10^{-3}

(1.429)\times 10^{-3}

1.429\times 10^{-3}

Therefore, the number 0.001429 will be 1.429\times 10^{-3} in scientific notation.

7 0
3 years ago
Simplify 6(x + 2) + 7.
Elina [12.6K]

Answer:

6x+19

Step-by-step explanation:

First thing first, we need to multiply the 6 into the equation. We do this by multiplying the x and 2 by 6.

6(x+2)+7

Multiply

6x+12+7

Now we need to combine like terms by adding the 12 and 7

6x+19

There it is simplified.

8 0
3 years ago
I need help with this geometry
Igoryamba

Answer:

70.4 meters

Step-by-step explanation:

A to B: 40²+10²=c² = 1600+100=c² = 1700=c² = c=√1700 = 41.23

B to C: 25²+15²=c² = 625+225=c² = 850=c² = c=√850 = 29.15

41.23+29.15=70.38

7 0
3 years ago
Helpers are needed to prepare for the fete. Each helper can make either 2 large cakes per hour, or 35 small cakes per hour. The
amid [387]
If 20 large cakes are needed, you'll need 4 helpers. To find this, you first need to find how many cakes 1 helper can make. Every hour, one helper can make 2 large cakes. If they have the kitchen for 3 hours, 6 large cakes can be made by one helper. This also means that 2 helpers make 12 cakes, 3 helpers can make 18 cakes, and 4 helpers can make 24 cakes. Since you can't have a fraction of a helper, 4 is your answer. For the 700 small cakes, you do the same thing. Every hour, 1 helper makes 35 small cakes. In 3 hours, 1 helper can make 105 small cakes. 2 can make 210, 3 can make 315, 4 can make 420, 5 can make 525, 6 can make 630, and 7 can make 735. The 700 small cakes takes 7 helpers and the 20 large cakes takes 4 helpers. Your total amount of helpers is 11.
8 0
3 years ago
How to solve this question
MAVERICK [17]
Hello there.

<span>4 3/4 - 2 3/4

19 over 4 - 2 3/4 = 19/4 - 11/4 = ?

After working that out. Your answer should be 2

Answer: 2</span>
4 0
3 years ago
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