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
Lesechka [4]
2 years ago
7

Simplify and find the reciprocal of 7/6 x -3/28

Mathematics
2 answers:
Basile [38]2 years ago
7 0

Answer:

Simplified it is -1 / 8

Reciprocal is 8/-1 or -8

Step-by-step explanation:

Multiply

7/6 x -3/28

= 7 x -3 / 6 x 28

= -21 / 168

Simplify

-21/21 = -1

168/21 = 8

-21/168 = -1/8

Find reciprocal

The reciprocal of a fraction is the numerator and denominator reversed

-1/8 > 8/-1

8/-1 is the same as -8

Hope this helps!

Snowcat [4.5K]2 years ago
6 0

Answer:

The product of \frac{7}{6} and -\frac{3}{28} is -\frac{1}{8}. The reciprocal is \frac{8}{-1}.

Step-by-step explanation:

We have to find the product of \frac{7}{6} and -\frac{3}{28} before we find the reciprocal.

Before we do this though, we need to review a few words and their definitions.

First, the reciprocal of a fraction is when the numerator becomes denominator and the denominator becomes numerator.

Now we're ready to solve \frac{7}{6} *-\frac{3}{28}:

Step 1: Use this rule: \frac{a}{b} *\frac{c}{d} =\frac{ac}{bd}.

\frac{7*-3}{6*28}

Step 2: Simplify 7 × - 3 to - 21.

\frac{-21}{6*28}

Step 3: Simplify 6 × 28 to 168.

\frac{-21}{168}

Step 4: Move the negative sign to the left.

-\frac{21}{168}

Step 5: Simplify \frac{21}{168} to \frac{1}{8}.

-\frac{1}{8}

Now that we've found the product, we now must find the reciprocal.

Now using what we know and the process to find the reciprocal.

We can use that knowledge to find it:

-\frac{1}{8} =\frac{8}{-1}

You might be interested in
Fgbnvb xhgrfdcc vbn c
Trava [24]

Answer:

what??? that not a question

3 0
3 years ago
Read 2 more answers
Please help. Find tanX
Kruka [31]

Answer:

32/24

Step-by-step explanation:

opposite/ adjacent

5 0
3 years ago
Read 2 more answers
Solve the system using substitution: y + 8x = 10 and 2y - 4x = 40
exis [7]

Answer:

Hence x = -1 and y = 18

<em></em>

Step-by-step explanation:

Given the system of equations

y + 8x = 10... 1

2y - 4x = 40 ... 2

From 1; y = 10-8x

Substitute into 2;

2(10-8x) - 4x = 40

20 - 16x - 4x = 40

20 - 20x = 40

-20x = 40 - 20

-20x = 20

x = -1

Recall that y = 10-8x

y = 10 - 8(-1)

y = 10 + 8

y = 18

Hence x = -1 and y = 18

<em></em>

4 0
3 years ago
Each week, you drive 150 miles. Your car gets 25 miles to the gallon, and gas prices are $3 per gallon. How much gas money will
blondinia [14]
150 divided by 25 equals 6. 6 times 3 equals 18. This means that you will spend $18 on gas each week. 
6 0
3 years ago
Read 2 more answers
Let represent the number of tires with low air pressure on a randomly chosen car. The probability distribution of is as follows.
Sindrei [870]

Answer:

a) P(X=3) = 0.1

b) P(X\geq 3) =1-P(X

And replacing we got:

P(X \geq 3) = 1- [0.2+0.3+0.1]= 0.4

c) P(X=4) = 0.3

d) P(X=0) = 0.2

e) E(X) =0*0.2 +1*0.3+2*0.1 +3*0.1 +4*0.3= 2

f) E(X^2)= \sum_{i=1}^n X^2_i P(X_i)

And replacing we got:

E(X^2) =0^2*0.2 +1^2*0.3+2^2*0.1 +3^2*0.1 +4^2*0.3= 6.4

And the variance would be:

Var(X0 =E(X^2)- [E(X)]^2 = 6.4 -(2^2)= 2.4

And the deviation:

\sigma =\sqrt{2.4} = 1.549

Step-by-step explanation:

We have the following distribution

x      0     1     2   3   4

P(x) 0.2 0.3 0.1 0.1 0.3

Part a

For this case:

P(X=3) = 0.1

Part b

We want this probability:

P(X\geq 3) =1-P(X

And replacing we got:

P(X \geq 3) = 1- [0.2+0.3+0.1]= 0.4

Part c

For this case we want this probability:

P(X=4) = 0.3

Part d

P(X=0) = 0.2

Part e

We can find the mean with this formula:

E(X)= \sum_{i=1}^n X_i P(X_i)

And replacing we got:

E(X) =0*0.2 +1*0.3+2*0.1 +3*0.1 +4*0.3= 2

Part f

We can find the second moment with this formula

E(X^2)= \sum_{i=1}^n X^2_i P(X_i)

And replacing we got:

E(X^2) =0^2*0.2 +1^2*0.3+2^2*0.1 +3^2*0.1 +4^2*0.3= 6.4

And the variance would be:

Var(X0 =E(X^2)- [E(X)]^2 = 6.4 -(2^2)= 2.4

And the deviation:

\sigma =\sqrt{2.4} = 1.549

4 0
3 years ago
Other questions:
  • +4.31. Let a(s) be a unit speed curve with kt = 0. Prove there is a curve
    6·1 answer
  • What are (a) the x component and (b) the y component of a vector in the xy plane if its direction is 250° counterclockwise from
    6·1 answer
  • 0.8÷30<br><img src="https://tex.z-dn.net/?f=0.8%20%20%5Cdiv%2030%20%3D%20" id="TexFormula1" title="0.8 \div 30 = " alt="0.8 \d
    10·1 answer
  • ? Ft = 90 in please fill in the guestion mark
    10·2 answers
  • The trinomial x2 – 3x – 4 is represented by the model.
    10·1 answer
  • Ethan is saving money in his piggy bank for his upcoming trip to Disney World. On the first day, he put in $12 and plans to add
    11·1 answer
  • In the figure below the measure of angle abc = 57* and the of dab = 116* what is the measure of angle acb explain how you calcul
    10·1 answer
  • What are the steps to solve, 510=x+.21x-.19x
    13·1 answer
  • Estimate the quotient for 627 ÷ 9. explain how you found your awnser
    8·2 answers
  • What's the simplified expression of 6x2y3/2x−2?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!