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spayn [35]
3 years ago
7

The work of a student to solve a set of equations is shown:

Mathematics
1 answer:
borishaifa [10]3 years ago
7 0
The student first made an error in step 2 when she simplified... She should have used the distributive property to distribute the -4 through the parentheses. It should look like this...

-4 (y) = -4 (4 - 2z)
-4y = -16 + 8z
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What is the quotient of 4 and 1/6 in the simplest form? 1/24
MakcuM [25]
SOLUTION:

Let's first establish the problem we will solve.

= 4 ÷ 1 / 6

Now we will turn this from division into multiplication by changing the division symbol ( ÷ ) into a multiplication symbol ( × ) and doing the reciprocal of the fraction after the symbol. Reciprocal basically means to make the numerator the denominator and make the denominator the numerator in the fraction.

= 4 × 6

Now we will simply write the product of the two numbers to achieve our final answer.

= 24

Hope this helps! :)
Have a lovely day! <3
4 0
3 years ago
52 POINTS. <br> ⦁ Solve for x
pentagon [3]

Answer:

  • x = - 2.5

Step-by-step explanation:

  • 3^{4x - 5}=(1/27)^{2x + 10}
  • 3^{4x - 5}=(1/3^3)^{2x + 10}
  • 3^{4x - 5}=(3^{-3})^{2x + 10}
  • 3^{4x - 5}=3^{-3*(2x + 10)}
  • 4x - 5 = - 3*(2x + 10)
  • 4x - 5 = - 6x - 30
  • 4x + 6x = 5 - 30
  • 10x = - 25
  • x = - 2.5

4 0
3 years ago
A set average city temperatures in August are normally distributed with a mean of 21.25 degrees Celsius and a standard deviation
Ainat [17]

Answer:

The proportion of temperatures that lie within the given limits are 10.24%

Step-by-step explanation:

Solution:-

- Let X be a random variable that denotes the average city temperatures in the month of August.

- The random variable X is normally distributed with parameters:

                           mean ( u ) = 21.25

                           standard deviation ( σ ) = 2

- Express the distribution of X:

                           X ~ Norm ( u , σ^2 )

                           X ~ Norm ( 21.25 , 2^2 )

- We are to evaluate the proportion of set of temperatures in the month of august that lies between 23.71 degrees Celsius and 26.17 degrees Celsius :

                           P ( 23.71 < X < 26.17 )

- We will standardize our limits i.e compute the Z-score values:

                          P (  (x1 - u) / σ < Z < (x2 - u) / σ )

                          P (  (23.71 - 21.25) / 2 < Z < (26.17 - 21.25) / 2  )

                          P ( 1.23 < Z < 2.46 ).

- Now use the standard normal distribution tables:

                          P ( 1.23 < Z < 2.46 ) = 0.1024

- The proportion of temperatures that lie within the given limits are 10.24%

4 0
3 years ago
Unfortunately, no one buys your bracelets at a price of $10. this is a signal for you to _____. make more bracelets lower your p
tamaranim1 [39]
I would think you would lower ur price. But I wouldn't  make the price so low so that it costs the same to produce them as it does to sell them, because then there would be no profit.
3 0
4 years ago
Read 2 more answers
Please help.i am really struggling
alina1380 [7]

Answer:

3,-3) becomes ; (3 + 5 , -3-12) ; (8,-15)

(7,-10) becomes;( 7 + 5, -10-12) ; (12,-22)

(13,-14) becomes (7 + 13, -14-10) ; (20,-24)

Step-by-step explanation:

What we have to do here is to add 5 to the x-axis value and subtract 12 from the y-axis value

(3,-3) becomes ; (3 + 5 , -3-12) ; (8,-15)

(7,-10) becomes;( 7 + 5, -10-12) ; (12,-22)

(13,-14) becomes (7 + 13, -14-10) ; (20,-24)

3 0
3 years ago
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