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
beks73 [17]
3 years ago
11

What is the product of -3 1/4 × -1 1/2​

Mathematics
2 answers:
Dmitry [639]3 years ago
4 0

For this case we must find the product of the following expression:

-3 \frac {1} {4} * - 1 \frac {1} {2} =

So, we have:

(\frac {4 * (3) +1} {4}) * (\frac {2 * (1) +1} {2}) =\\\frac {12 + 1} {4} * \frac {2 + 1} {2} =\\(- \frac {13} {4}) * (- \frac {3} {2}) =

By law of signs of multiplication is fulfilled:

- * - = +\\\frac {13 * 3} {4 * 2} =\\\frac {39} {8}

ANswer:

\frac {39} {8}

OLga [1]3 years ago
4 0

Answer:

4\frac{7}{8}

Step-by-step explanation:

-3\frac{1}{4} \times -1\frac{1}{2} = -\frac{13}{4} \times -\frac{3}{2} = \frac{39}{8} = 4\frac{7}{8}

I am joyous to assist you anytime.

You might be interested in
What is the sum of the measure of the interior angles of an octagon
Afina-wow [57]

Answer:

1080°

Step-by-step explanation:

formula to find the sum of interior angles of a polygon is (n-2)×180

octagon has 8 sides so n=8

(8-2)×180

6×180

=1080°

6 0
2 years ago
olice response time to an emergency call is the difference between the time the call is first received by the dispatcher and the
yan [13]

Answer:

0.7823 = 78.23% probability that the response time is between 3 and 9 minutes.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean of 7.2 minutes and a standard deviation of 2.1 minutes.

This means that \mu = 7.2, \sigma = 2.1

For a randomly received emergency call, find the probability that the response time is between 3 and 9 minutes.

This is the pvalue of Z when X = 9 subtracted by the pvalue of Z when X = 3.

X = 9

Z = \frac{X - \mu}{\sigma}

Z = \frac{9 - 7.2}{2.1}

Z = 0.86

Z = 0.86 has a pvalue of 0.8051

X = 3

Z = \frac{X - \mu}{\sigma}

Z = \frac{3 - 7.2}{2.1}

Z = -2

Z = -2 has a pvalue of 0.0228

0.8051 - 0.0228 = 0.7823

0.7823 = 78.23% probability that the response time is between 3 and 9 minutes.

4 0
2 years ago
How are mass and volume related on this graph?
dimaraw [331]
The answer is the last one: as the mass increases, the volume also increase
explanation: the line is going up and to the right and when u pick any point on the line it only gets higher from there and increasing is getting higher
8 0
3 years ago
A square has side length represented by X +4 inches write an expression to represent the area. Express your answer as a trinomia
romanna [79]

Answer:

A=(x^2+16+8x)\ \text{inches}^2

Step-by-step explanation:

Given that,

The side length of a square, l = (x+4) inches

We need to find an expression to represent the area of the square.

The area of a square is given by :

A=\text{side}^2

So,

A=(x+4)^2\\\\A=(x^2+16+8x)\ \text{inches}^2

So, the area of the square is (x^2+16+8x)\ \text{inches}^2.

7 0
2 years ago
Someone please help me on this question ?:)
Simora [160]

Answer:

x=-121

Step-by-step explanation:

.4(5+2x) -12 = .9x+2.1

Distribute the .4

2 + .8x -12 = .9x+2.1

Combine like terms

-10 +.8x = .9x +2.1

Subtract .8x from each side

-10 +.8x-.8x = .9x-.8x +2.1

-10 = .1x +2.1

Subtract 2.1 from each side

-10-2.1 = .1x +2.1-2.1

-12.1 = .1x

Divide by .1

-12.1/.1 = 1.x/.1

-121 =x

6 0
3 years ago
Other questions:
  • Fill in the blank. Using the number line below, the plotted number is
    11·1 answer
  • Draw and write to explain how these two problems are different 35-15=. And 43-26=.
    14·2 answers
  • Suppose that a loan of $6000 is given at an interest rate of 9% compounded each year.
    5·2 answers
  • Please help!! what is the solution to the equation
    9·1 answer
  • Please HELP ME!!!!!!!!!!!!!!!!!!!!
    13·1 answer
  • How do u write 5,823 in scientific notation
    15·2 answers
  • Khi m=4 cho ma trận A= -3 -2m-2 2-2m
    7·2 answers
  • Which of the following are identities? check all that apply.
    13·1 answer
  • A rectangular hotel room is 5 meters by 6 meters. The owner of the hotel wants to recarpet the room with carpet that costs $57.0
    15·1 answer
  • Please help me ! I will mark brainlist
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!