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Dmitriy789 [7]
4 years ago
11

What is the product of 2.678 and 9.7? A) .259766 B) 25.9766 C) 2.59766 D) 259.766

Mathematics
2 answers:
solmaris [256]4 years ago
6 0
When you multiply it out by hand to get 
   2678 × 97 = 259766
you place the decimal point in the answer by counting the number of decimal places of the multiplicands.
   2.678 has 3 decimal places
   9.7 has 1 decimal place
The product of these numbers will have 3+1 = 4 decimal places, so will look like
   B) 25.9766


___
You can also get there by considering that the product is about 10×2.6, so is about 26. That will tell you the decimal point goes after the first two left-most digits.
Lena [83]4 years ago
4 0

Answer:

The correct answer is 25.9766

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The bowling team at Lincoln High School must choose a president, vice president, and secretary. If the team has 19 members, how
Valentin [98]

Answer:

Officers can be chosen in 5,814 different ways.

Step-by-step explanation:

Given that the bowling team at Lincoln High School must choose a president, vice president, and secretary, to determine, if the team has 19 members, in how many ways could the officers be chosen, the following calculation must be performed:

19 x 18 x 17 = X

342 x 17 = X

5.814 = X

Therefore, officers can be chosen in 5,814 different ways.

3 0
3 years ago
(x + 3)2 - 4 = 0<br> Solve algebraically.
love history [14]

Answer:

x = -1

Step-by-step explanation:

2(x + 3) - 4 = 0

2x + 6 - 4 = 0

2x + 2 = 0

2x = 0 - 2

2x = -2

x = -2 ÷ 2

x = -1

7 0
3 years ago
Read 2 more answers
By what factor must you multiply a number in order to triple its square root?
LiRa [457]
To solve the problem shown above you must apply the following proccedure:

 1. Let's call:

 x: a number.
 f: the factor.

 2. Then, you have:

 √fx=3√x

 3. You must clear the factor "f" to calculate its value, as below:

 √fx=3√x
 (√fx)²=(3√x)²
 fx=9x
 f=9x/x

 4. Then, the factor is:

 f=9

 5. Therefore, b<span>y what factor must you multiply a number in order to triple its square root?
</span>
 The answer is: 9 
4 0
4 years ago
Drag a reason to each box to complete this proof.<br><br> If 12=13x+5 , then x = 21.
Ainat [17]
<span><span>I think the answers are:

Statement          Reason</span><span><span><span>  
<span>12=<span>13</span>x+5          </span></span>Given</span><span><span>  
<span>7=<span>13</span>x          </span></span>Subtraction Property of Equality</span><span><span> 
21 = x          </span>Multiplication Property of Equality</span><span><span> 
x = 21          </span><span>Symmetric Property of Equality 

By the way, I'm doing the same exam for Geometry as well. There's a lot of proof questions on there which I'm not good at doing for the reasoning part. If you finish the exam before I do, maybe you can message me what the answers are for some of the questions on there so I know if my answers for the questions are incorrect or not. 

Besides that, hope the answer above is correct for you. 

<em>~ ShadowXReaper069</em></span></span></span></span>
5 0
3 years ago
Read 2 more answers
Can you help me find the side??? It's trigonometry!!
olganol [36]

Answer: 5.6

===================================

Work Shown:

cos(angle) = adjacent/hypotenuse

cos(B) = AB/BC

cos(62) = AB/12

12*cos(62) = AB

AB = 12*cos(62)

AB = 5.63365875

AB = 5.6

8 0
3 years ago
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