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
Simora [160]
3 years ago
12

Try your best. And i try to ask questions everyday for you guys to solve. like puzzles.

Mathematics
2 answers:
galben [10]3 years ago
8 0

Answer:

12

Step-by-step explanation:

3÷\frac{1}{4}

  • 3×\frac{4}{1}
  • \frac{12}{1}
  • 12
lara [203]3 years ago
6 0

Answer: 12

i do not know

Step-by-step explanation:

You might be interested in
15. What is the equation of the line that contains the point (3,-1) and is perpendicular to the line whose
Levart [38]

Answer:

2y=-2x

Step-by-step explanation:

2y=4-6x

2y=-2x

y=-1

8 0
2 years ago
I dont know how to solve this can you help me​
a_sh-v [17]

Answer:2

Step-by-step explanation:

x is located on the horizontal line, so when we look at 3 on the horizontal and trace that line up to where it hits the red line of the function you will find y, the vertical value which is 2

7 0
3 years ago
Which two equations would be most appropriately solved by using the zero product property? Select each correct answer.
ss7ja [257]

Answer:

1) (x + 4)(x - ½) = 0

4x² + 16x = 0

2) 0.25x² + 0.8x - 8 = 0

3x² - 4x = 15

Step-by-step explanation:

1) (x + 4)(x - ½) = 0

x = -4, ½

4x² + 16x = 0

4x(x + 4) = 0

x = 0, -4

2) (x - 6)(x + 9) = 0

x = 6, -9

(x - 1)² = 4

(x - 1)² - (2)² = 0

(x - 1 - 2)(x - 1 + 2) = 0

(x - 3)(x + 1) = 0

x = 3, -1

These two are easier to solve using product = 0 property, while the other two would be easier using the quadratic formula

8 0
3 years ago
0.7x − 0.2 = 8.3x + 7.2
qwelly [4]

Answer: -37/38

Step-by-step explanation:

3 0
2 years ago
A major department store has determined that its customers charge an average of $500 per month, with a standard deviation of $80
julia-pushkina [17]

Answer:

Step-by-step explanation:

Since the amounts of charges are assumed to be normally distributed,

we would apply the formula for normal distribution which is expressed as

z = (x - µ)/σ

Where

x = the amounts of charges.

µ = mean amount

σ = standard deviation

From the information given,

µ = $500

σ = $80

a) the probability that customers charges more than $380 per month is expressed as

P(x > 380) = 1 - P(x ≤ 380)

For x = 380,

z = (380 - 500)/80 = - 1.5

Looking at the normal distribution table, the probability corresponding to the z score is 0.067

P(x > 380) = 1 - 0.067 = 0.933

The percentage of customers that charges more than $380 per month is

0.933 × 100 = 93.3%

b) the probability that customers charges less than $340 per month is expressed as

P(x < 340)

For x = 340,

z = (340 - 500)/80 = - 2

Looking at the normal distribution table, the probability corresponding to the z score is 0.023

The percentage of customers that charges less than $340 per month is

0.023 × 100 = 2.3%

c) the probability that customers charges between $644 and $700 per month is expressed as

P(644 ≤ x ≤ 700)

For x = 644,

z = (644 - 500)/80 = 1.8

Looking at the normal distribution table, the probability corresponding to the z score is 0.96

For x = 700,

z = (700 - 500)/80 = 2.5

Looking at the normal distribution table, the probability corresponding to the z score is 0.994

P(644 ≤ x ≤ 700) = 0.994 - 0.96 = 0.034

The percentage of customers that charges between $644 and $700 per month is

0.034 × 100 = 3.4%

3 0
3 years ago
Other questions:
  • Which of the following is a complex number?<br><br> a. -7<br> b. 2+√3<br> c. 4+9i<br> d. π
    9·2 answers
  • Set up an equation and solve for x<br> X<br> 2x<br> 3x<br> Equation
    9·1 answer
  • Math help plz...lots of points<br><br>only need #10 &amp; 12....plz show work thx
    11·1 answer
  • Use substitution to solve the linear system of equations.
    14·1 answer
  • Can someone please help me with this question
    9·2 answers
  • Can anyone answer me bc this is confusing
    11·2 answers
  • 5th grade math. Correct answer will be marked brainliest.
    8·2 answers
  • 2x + y = 2<br> y = –2x – 1
    6·1 answer
  • 15
    12·1 answer
  • Is this graph continuous or discontinuous?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!