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3 years ago

What is the difference between 1 and o.1978

Mathematics

1 answer:

Vlad1618 [11]3 years ago

6 0

Answer:

0,8022

Step-by-step explanation:

guess it helped

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In Δ Q R S s = 7.9 cm ∠ Q = 125 ∘ and ∠ R = 23 ∘ '. Find the length of q, to the nearest 10th of a centimeter.

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3 years ago

Which expression has the fewest number of significant figures

Brums [2.3K]

Answer:

18.3

18.3 only has three significant figures while the other numbers have more

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3 years ago

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Which expressions are equivalent to this expression?

lara [203]

Answer:

Answer is given below with explanations. 

Step-by-step explanation:

$given \: equation \: is \\ 30 {x}^{2} - 5x - 10 \\ taking \: out \: 5 \: which \: is \: common \: gives \\ 5(6 {x}^{2} - x - 2) \\ by \: factorization \: \\ (multiply \: = - 12 \: and \: add \: - 1) \\ 5(6 {x}^{2} + 3x - 4x - 2) \\ 5(3x(2x + 1) - 2(2x + 1)) \\ = 5(2x + 1)(3x - 2) \\ so \: answer \: is \: option \: 5$

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THANKS FOR GIVING ME THE OPPORTUNITY TO ANSWER YOUR QUESTION. 

7 0

3 years ago

Mario is constructing a frame for 10 in. by 8 in. photo. He wants the frame to be the same with all the way around in the same a

Yuri [45]

Answer: 12 in. by 10 in.

Step-by-step explanation:

Given: The dimensions of photo is 10 in. by 8 in.

Therefore, Area of photo= $10\times8=80\ in.^2$

Area of frame with photo=120 square inches

Let x be the width of the frame, then we have

Length of frame with photo= 10+2x inches

Width of frame with photo =8+2x inches

Now, $(10+2x)(8+2x)=120$

$80+16x+20x+4x^2=120\\\Rightarrow\ 4x^2+36x-40=0\\\Rightarrowx^2+9x-10=0\\\(x-1)(x+10)=0\\\Rightarrow\ x=1,...........[text{Since length can not be negative so it cannot be -10}]$

Thus, dimension of frame = $(10+2(1))(8+2(1))=12\ in.\ by\ 10\ in.$

5 0

4 years ago

In a 3-digit number, the middle digit is 3 times the last digit and 4 more than the first digit. All the digits are odd and can

Alexeev081 [22]

Answer:

Step-by-step explanation:

This is quite some trial and error question.

Based on the question, the numbers we can use are 1,3,5,7 and 9.

We will start with the middle digit first.

Since the question has stated it is 3 times the last digit, the number has to be in multiples of 3.

So we are left with: 3 and 9.

Then, the question also states the middle digit is 4 more than the first digit. See, its a digit, so the value cannot be less than 1 (odd numbers only and no negative values), so if we subtract 4 to the middle digit to find the first, it should still be a Positive Single numerical value.

3 - 4 = -1

9 - 4 = 5

Therefore, this middle digit is = 9.

Since we know the middle digit = 9

The first digit will be 9 - 4 = 5

The whole value is now 593.

4 0

2 years ago

What is the difference between 1 and o.1978​

What is the difference between 1 and o.1978