1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vladimir1956 [14]
3 years ago
10

A student’s work to simplify and combine radicals is shown below. Select the statement which best applies to the sample mathemat

ical work.
Given 4√50-2√8, I observe that √50=√20*2 and √8=√4*2, and that 25 and 4 are perfect squares, so I simplify the expression to 100√2-8√2. I can then combine these terms to get 92√2, which is my answer.
Mathematics
1 answer:
jeka943 years ago
4 0
Your answer is incorrect. You forgot to get the square root of 25 and 4. Answer should be 16√2

we can only subtract radicals that are the same. At first glance, 4√50 - 2√8 are not the same, so they are not likely to be subtracted. However, each radical can still be simplified.

4 √50 = 4 √25 * 2 = 4 * 5 √2 = 20 √2
2 √8   = 2 √4 * 2   = 2 * 2 √2 =   4 √2

Now that the radicals are the same. then you can subtract the numbers.

20 √2 - 4 √2 = 16√2

You might be interested in
A carton of eggs costs $2.90 and a package of bacon costs $3.10. How much
Dominik [7]

Answer:

$8.90

Step-by-step explanation:

((2)(2.90))+(3.10)= $8.90

3 0
3 years ago
Read 2 more answers
Exhibit B: A restaurant has tracked the number of meals served at lunch over the last four weeks. The data shows little in terms
Mekhanik [1.2K]

Answer:

Option E is correct.

The expected number of meals expected to be served on Wednesday in week 5 = 74.2

Step-by-step Explanation:

We will use the data from the four weeks to obtain the fraction of total days that number of meals served at lunch on a Wednesday take and then subsequently check the expected number of meals served at lunch the next Wednesday.

Week

Day 1 2 3 4 | Total

Sunday 40 35 39 43 | 157

Monday 54 55 51 59 | 219

Tuesday 61 60 65 64 | 250

Wednesday 72 77 78 69 | 296

Thursday 89 80 81 79 | 329

Friday 91 90 99 95 | 375

Saturday 80 82 81 83 | 326

Total number of meals served at lunch over the 4 weeks = (157+219+250+296+329+375+326) = 1952

Total number of meals served at lunch on Wednesdays over the 4 weeks = 296

Fraction of total number of meals served at lunch over four weeks that were served on Wednesdays = (296/1952) = 0.1516393443

Total number of meals expected to be served in week 5 = 490

Number of meals expected to be served on Wednesday in week 5 = 0.1516393443 × 490 = 74.3

Checking the options,

74.3 ≈ 74.2

Hence, the expected number of meals expected to be served on Wednesday in week 5 = 74.2

Hope this Helps!!!

8 0
3 years ago
What are the leading coefficient and degree of the polynomial?
MissTica

Answer:

  • leading coefficient: 2
  • degree: 7

Step-by-step explanation:

The degree of a term with one variable is the exponent of the variable. The degrees of the terms (in the same order) are ...

  6, 0, 7, 1

The highest-degree term is 2x^7. Its coefficient is the "leading" coefficient, because it appears first when the polynomial terms are written in decreasing order of their degree:

  2x^7 -7x^6 -18x -4

The leading coefficient is 2; the degree is 7.

__

<em>Additional comment</em>

When a term has more than one variable, its degree is the sum of the exponents of the variables. The term xy, for example, is degree 2.

4 0
3 years ago
Need help with this problem for my cousin
yKpoI14uk [10]
You have separated the figure into three (3) parts. There are two squares (or rectangles on the bottom. Subtract 5 from 8 to find out the length of the side (right side). 8-5=3. Then subtract 3 from 8 (8-3=5). The new length is 5 ft. 5 multiplied by 5 is the area of one of the squares on the bottom (25 ft. squared). Multiply that by two to find the area of both the squares on the bottom (50 ft. squared).

There's also a rectangle on the top. The base is 15 ft. and the height is 3 ft. Remember that you subtracted 5 from 8 to find out the area of the two bottom squares. 15 multiplied by 3 is 45 (ft.)

Add 45 to 50 to get the area of the entire figure. (45+50=95 or 95 ft. squared).

95 ft. squared is the area of the entire figure. Hope this helped you.
3 0
3 years ago
An office uses 478 pounds of paper in one week. The paper comes in packages that hold 18 pounds of paper each. How many packages
ddd [48]
To solve this, you would divide 478 by 18, which equals 26.5555556. Since you can't have half a package of paper, the answer would be 26. Hope this helps!
7 0
3 years ago
Other questions:
  • Which expressions below are equivent to 2(2x+1)​
    7·1 answer
  • How do i solve this cause it is hard
    7·2 answers
  • You want to rent movies online. The new service charges a sign up fee of
    7·2 answers
  • A 7 foot piece of PVC pipe is cut into three pieces. The longest piece is 13 inches longer than three times the smallest piece.
    7·1 answer
  • A big group of people are taking the train home for Christmas. 19 people get off the train in Brooklyn, 17 people then get on. N
    7·1 answer
  • Help me pleaseee urgenttt
    5·2 answers
  • Jake has 145 bottle caps and daniel has 143 bottle caps. how many bottle caps do they have in all? 145 143 = 288 which of the fo
    9·1 answer
  • 10a-4b+10-9b? can someone help
    14·2 answers
  • \begin{aligned} 4{,}570=&amp; 4 \text{ thousands} + 5 \text{ hundreds} + 7 \text{ tens} \\\\ 4{,}570=&amp; 3 \text{ thousands} +
    13·1 answer
  • The area of the rectangle shown is 66m^2
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!