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
steposvetlana [31]
3 years ago
8

Evaluate 6ab when a = 1/2 and b = 7

Mathematics
2 answers:
Nezavi [6.7K]3 years ago
8 0

Answer:

21

Step-by-step explanation:

natima [27]3 years ago
6 0

Answer:21

Step-by-step explanation:

You might be interested in
How do I solve this? I need help and I can’t figure it out!!
ladessa [460]

Answer:

\fbox{x=10}

Step-by-step explanation:

When you have two parallel lines, corresponding angles such as the values of

4x=3x+10

Then, they are equal, so solve for x.

4x=3x+10\\4x=3x=3x-3x+10\\x=10

3 0
3 years ago
The sum of the roots of 3x 2 + 11x - 4 = 0 is<br><br> -11/3<br> -4/3<br> 11/3<br> 4/3
givi [52]

Answer:

The correct option is 1.

Step-by-step explanation:

If a quadratic equation is defined as

ax^2+bx+c=0             .... (1)

Then the sum of the roots is -b/a and the product of roots is c/a.

The given equation is

3x^2+11x-4=0          ... (2)

From (1) and (2) we get a=3, b=11 and c=-4.

The sum of roots is

\frac{-b}{a}=-\frac{11}{3}

The sum of roots is -\frac{11}{3}.

Therefore the correct option is 1.

5 0
3 years ago
What is Statistical inference?
rjkz [21]

Answer:

<em>Definition 1: The theory, methods, and practice of forming judgments about the parameters of a population and the reliability of statistical relationships, typically on the basis of random sampling.</em>

<em>Definition 2: The use of randomization in sampling allows for the analysis of results using the methods of statistical inference. Statistical inference is based on the laws of probability, and allows analysts to infer conclusions about a given population based on results observed through random sampling. Two of the key terms in statistical inference are parameter and statistic.</em>

Step-by-step explanation:

Hope this helps, have a good day. c;

4 0
3 years ago
Read 2 more answers
I need help finding the y-intercept of these, I am no good with slope and tables. ;-;
zubka84 [21]

Answer:

1. -4

2. 6

3. -6

(i hope this is right •_•)

Step-by-step explanation:

<u>First table</u>

When the x coordinate is 0, that point is your y intercept. For the first one, your y intercept is -4.

<u>Second table</u>

For the second one, we need to do a bit of counting. We can see the x coordinates go before and after zero, but the table does not show us 0. So, we're going to have to calculate the slope. Bear with me here, I'm a little tired and this might be rambling ;-;

So, the formula for calculating slope is \frac{y_{2} -y_{1}}{x_{2}-x_{1}}. I'm going to use those first two points to get my slope. We're going to say the first point is point 1 and the second point is point 2 (genius, i know lol). So, let's substitute in the x and y values.

\frac{9-12}{-3-(-6)}

And simplify...

\frac{-3}{3}

So, your slope is -1. We can use that. We just have to count down.

If the x is -2, the y is 8. If the x is -1, the y is 7. And if the x is 0....(drumroll please) the y is 6! So, your y intercept is 6.

<u>Third table</u>

Now, this table isn't very nice either and doesn't have an x as 0 for us. Hmpf. But we can still do what we did above. I'll just skip the explanation and you can observe my steps.

\frac{-3-(-5)}{9-3}

\frac{2}{6}

\frac{1}{3}

Let's count down....

If x = 3, y = -5

If x = 2, y = -5 1/3

If x = 1, y = -5 2/3

If x = 0, y = -6

8 0
3 years ago
Solve the equation.<br> 5(5x + 1) = 3x - 9x<br> x=<br> (Type an integer or a simplified fraction.)
pogonyaev

Answer:

x = -5/31

Step-by-step explanation:

5(5x + 1) = 3x - 9x multiply 5 with the inside of the parenthesis, 5(5x + 1) = 25x + 5

25x + 5 = 3x - 9x add the like terms, 31x = -5 and x = -5/31

6 0
3 years ago
Other questions:
  • PLEASE HELP ME!!! IM REALLY STUCK
    6·1 answer
  • What is the domain of y equals 3 square root x
    11·1 answer
  • What is 45 * 89 + 67 &lt;55 - 56 =
    13·2 answers
  • Question 3 A school wants to know what type of new food to add to the cafeteria menu for next year that most students will like.
    14·1 answer
  • For the function, f(x)=1/4x-2, find x if f(x)=-1
    15·2 answers
  • Va rog e urgent am nevoie de raspuns
    15·1 answer
  • HELPPP ASAPP PLEASEE
    8·1 answer
  • Which number is the numerator in the fraction 1/2
    5·1 answer
  • Which is the correct algebraic expression after combining like terms? 6+8x-7-x
    7·2 answers
  • Car m left town q and car n left town p at the same time. at noon car m traveled 2/3 of the distannce from q to p and car n had
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!