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
velikii [3]
2 years ago
5

Marie wants to know the most popular car for parents. She plans to survey the people entering the mall from 10:00 a.m. to 11:00

p.m. What can Marie do to make sure her survey is valid?
A. Marie's sample is valid.
B. Marie should also survey people entering the grocery stores.
C. Marie should make sure she surveys both the fathers and mothers.
D. Marie should make sure she surveys the children as well as the parents.
Mathematics
1 answer:
Andreyy892 years ago
3 0

Answer:

C. Marie should make sure she surveys both the fathers and mothers.

You might be interested in
I need help with finding x<br> ANSWER ASAP!!!!!!!!!!
arsen [322]

The value of x is 36.

Solution:

Given angles of a triangle are 2x°, 2x° and x°.

To find the value of x:

<em>Sum of the all the angles of a triangle = 180°</em>

2x° + 2x° + x° = 180°

5x° = 180°

Divide by 5 on both sides of the equation.

x° = 36°

x = 36

The value of x is 36.

3 0
3 years ago
Can someone give the answer
KonstantinChe [14]

Answer:

(2, -2)

Step-by-step explanation:

Given the equation

x - y = 4 ... 1

6x+y = 10 ...2

Add both expressions

x+6x = 4 + 10

7x = 14

x = 14/7

x = 2

Substitute x = 2 into equation 1;

From 1;

x - y = 4

2 - y = 4

y = 2-4

y = -2

Hence the solution to the system of equation is (2, -2)

4 0
3 years ago
What is the discontinuity and zero of the function f(x) = the quantity of 3 x squared plus x minus 4, all over x minus 1? A. Dis
Firlakuza [10]

Answer:

The correct option is D. Discontinuity at (1, 7), zero at (negative four thirds, 0)  

Step-by-step explanation:

\text{The function is given to be : }f(x)=\frac{3x^2+x-4}{x-1}\\\\\implies f(x)=\frac{(3x+4)(x-1)}{(x-1)}

To find the point of discontinuity :

Put the denominator equal to 0

⇒ x - 1 = 0

⇒ x = 1

Also, if the factor (x - 1) gets cancel, then it becomes a hole rather than a asymptote , ⇒ y = 3x + 4 at x = 1

⇒ y = 7

So, Point of discontinuity : (1, 7)

And the zero is : after cancelling the factor (x - 1) put the remaining factor = 0

⇒ 3x + 4 = 0

⇒ 3x = -4

⇒ x = negative four thirds ( zero of the function)

Therefore, The correct option is D. Discontinuity at (1, 7), zero at (negative four thirds, 0)

4 0
3 years ago
Read 2 more answers
- Let y represent the width of a rectangle and let x represent the rectangle's lengu.
valentina_108 [34]

Answer:

Length: 21 cm and Width:  6cm

Step-by-step explanation:

Let y be the width and x length of the rectangle. We know:

x = 4y -3 -------- eq. 1

54 = 2x + 2y    (Perimeter of the rectangle) ------- eq.  2

Substitute equation 1 in equation 2:

54 = 2(4y-3) + 2y\\54 = 8y - 6 + 2y\\54 + 6 = 8y + 2y\\60 = 10 y\\\\\frac{60}{10}= y\\y = 6

Using the value of y, we find x.

x = 4y - 3\\x = 4(6) -3\\x= 24 - 3\\x = 21

4 0
3 years ago
Determine whether the number is divisible by 3.give a reason based on the tests for divisibility 72
snow_lady [41]

72 is dividable by 3. It is divisible by 3 because when you add 7 and 2, you get 9. According to the tests for divisibility, if the sum of the digits is divisible by 3, then the whole number is. 9 is divisible by 3, therefore 72 is as well.

5 0
3 years ago
Other questions:
  • How long will it take 680 dollars to earn 102 dollars in simple interest at an annual interest rate of 3%? Show your work in an
    6·1 answer
  • Help please my sister needs help with time
    13·1 answer
  • The circumference of a circle is divided into twelve equal arcs. The measure of each arc is degrees.
    13·2 answers
  • Find the m∠BAC, if m∠DEC = 58° and m∠EDC = 43°.
    13·1 answer
  • WILL CROWN BRAINLIEST, SUPERB RATING, AND THANKS
    9·1 answer
  • Find the unknown value in the proportion: x⁄32 = 76⁄128
    15·2 answers
  • How many solutions does this system have? <br> 12x+9y=-36 <br> 4x+3y=-12
    13·2 answers
  • PLEASEEEE SOMEONE HELPP WIRH THIS ANSWERER
    8·2 answers
  • Choose the proper rationale. "In the compound interest equation, time
    13·1 answer
  • At a math contest 20problems we’re given each correct answer earned 5 points and 2 points were deducted for each incorrect answe
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!