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
s344n2d4d5 [400]
3 years ago
7

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Mathematics
1 answer:
vodomira [7]3 years ago
8 0

12x^2-75=3(4x^2-25)=3(2^2x^2-5^2)=3((2x)^2-5^2)=3(2x+5)(2x-5)\\\\\text{Used:}\ a^2-b^2=(a+b)(a-b)\\\\Answer:\ 5

You might be interested in
The table displays the frequency of scores for a calculus class on an exam. The mean of the exam scores is 3.5. Score 1 2 3 4 5
vladimir1956 [14]

Answer:

f=11

Mode=4

Median=4

Explanation:

We are given that

a.Mean of the exam score,\bar x=3.5

Score(x)   frequency   C.F

1                  1                 1

2                  3                4

3                  f                 15(4+f=4+11)

4                  13               28

5                   4               32

\sum f_i=1+3+f+13+4=21+f

\sum f_ix_i=1(1)+2(3)+3(f)+4(13)+5(4)=1+6+3f+52+20=79+3f

(\bar x)=\frac{\sum f_ix_i}{\sum f_i}

Using the formula

3.5=\frac{79+3f}{21+f}

73.5+3.5f=79+3f

3.5f-3f=79-73.5

0.5f=5.5

f=\frac{5.5}{0.5}=11

b.Mode:The number which is repeat most times .

4 repeat most times

Hence, mode of all exam scores=4

N=32

N is even

Median=\frac{(\frac{n}{2})^{th}+(\frac{n}{2}+1)^{th}}{2}

Median=\frac{16th+17th}{2}=\frac{4+4}{2}=\frac{8}{2}=4

7 0
3 years ago
rodney bought a 25pound bag of dog food his dog eat 10and2/5poundsof foodinthe firstmounthand104/5poundsof the foodin the second
MakcuM [25]

Answer:

3⅘ lb  

Step-by-step explanation:

(a) <em>Amount eaten</em>

Eaten = 10⅖ + 10⅘

Think of pounds as pies. Each pie has 5 slices.

10⅖ pies = 10 pies + 2 slices = 50 slices + 2 slices = 52 slices

10⅘ pies = 10 pies + 2 slices = 50 slices + 4 slices = 54 slices

Eaten = 52 slices + 54 slices = 106 slices


(b) <em>Amount remaining</em>

Remaining = Original – Eaten

Original = 25 pies = 125 slices

Eaten = 106 slices

Remaining = 125 slices -106 slices

Remaining = 19 slices                 Convert slices to pies

Remaining = 15 slices + 4 slices

Remaining = 3 pies + 4 slices     Convert to mixed fraction

Remaining = 3⅘ pies                   Convert pies to pounds

Remaining dog food = 3⅘ lb

8 0
3 years ago
Read 2 more answers
Plez help What is the value of y in the equation 4 + y = −3?<br><br> 7<br> 1<br> −1<br> −7
HACTEHA [7]
The value of  y is -7 because you will add 4 on both sides and adding to negatives is adding and keeping the sign of the larger number.
3 0
3 years ago
Read 2 more answers
Terrell used wired fencing to form a border around a circular region vin his backyard. If the radius of the circular region was
eimsori [14]

Answer:

  37.7 yd

Step-by-step explanation:

The circumference of a circle can be found using the formula ...

  C = 2πr

For a radius of 6 yd, the circumference is ...

  C = 2π(6 yd) = 12π yd ≈ 37.7 yd

The length of the circular border was 37.7 yards.

5 0
3 years ago
Which of the following describes graphing y ≥ |x| - 4? Translate y = |x| down 4 units and shade inside the V. Translate y = |x|
Andru [333]

Answer:

Translate y = |x| down 4 units and shade inside the V.

Step-by-step explanation:

We want to graph the inequality

y \geqslant  |x|  - 4

We first need to graph the corresponding absolute value equation.

y =  |x|  - 4

We graph the parent absolute value function,

y =  |x|

and shift 4 units down.

We then test the origin:

0 \geqslant  |0|  - 4 \\ 0 \geqslant  - 4

This is true.

Therefore we shade inside the V shape.

6 0
3 years ago
Other questions:
  • 90oriX9 un rezultat va rog
    11·1 answer
  • jerry has 60 coins consisting of quarters and dimes. The coins combined value is $9.45. Find out how are quarters and how many a
    14·1 answer
  • What Is the midpoint of the line segment with endpoints (1, -6) and (-3, 4)?
    10·1 answer
  • Suppose that a function​ f(x) is defined for all real values of x except at xequals=c. can anything be said about the existence
    12·1 answer
  • Which strategy would not correctly solve this story problem? Jason bought a bagel and a cup of coffee each Saturday. Each bagel
    11·1 answer
  • A house painter finds that he needs 20 minutes to set up his equipment before painting and then 5 minutes for every square foot
    6·1 answer
  • Pls I need help pls​
    8·1 answer
  • Please help! Will mark brainliest
    10·1 answer
  • How do name this fraction <br>2/6​
    13·2 answers
  • Justice has a rectangular lot that is 125ft by 175ft. If he wants to place a fence around the outer edge of the property, how ma
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!