All categories

3 years ago

Simplify the following algebraic expression 3/4 (1/2x - 12) + 4/5

Mathematics

1 answer:

abruzzese [7]3 years ago

6 0

Answer:

D. $\frac{3}{8}x - 8 \frac{1}{5}$

Step-by-step explanation:

You might be interested in

HAVING BAD DAY HELP

ElenaW [278]

12s, you don’t have a value for s, so the problem can’t be fully solved but if you did you would multiply 12 by her speed

Hope this helps

8 0

3 years ago

Read 2 more answers

Find the measure of angle A

Neporo4naja [7]

Since 3x + 2 is on a. Straight line, is is equal to 180 degrees.
1) So, 52 + another number must equal 180 degrees.
2) You're answer would be 118 because 118 + 52 = 180
3) Angle A = 118

6 0

4 years ago

Which is the graph of y = 3/ x + 1 - 2?

garri49 [273]

Answer:

The second graph near the bottom with a Y-intercept of -1

7 0

3 years ago

Read 2 more answers

Let U = {3, 6, 9, 12, 15, 18, 21, 24} and A = {9, 12, 15, 21}. A'

miskamm [114]

Answer:

A¹ = { 3 , 6, 18 , 24}

Step-by-step explanation:

Explanation:-

Universal set

If all the sets under consideration are the subsets of a fixed set 'U' then the set 'U' is called the Universal set.

Given U = {3, 6, 9, 12, 15, 18, 21, 24}

Given A = {9, 12, 15, 21}

Compliment Of A

The Complement of a set A is all the objects that do not belong to set A

The Compliment of A is denoted by A¹

A¹ = U - A

= {3, 6, 9, 12, 15, 18, 21, 24} - {9, 12, 15, 21}

A¹ = { 3 , 6, 18 , 24}

4 0

3 years ago

A random sample of 45 door-to-door salespersons were asked how long on average they were able to talk to the potential customer.

dimulka [17.4K]

Answer:

b. =8.5+1.96*3/SQRT(45), and =8.5-1.96*3/SQRT(45)

Step-by-step explanation:

Sample size (n) = 45

Sample mean (M) = 8.5 minutes

Variance (V) = 9 minutes

Z-score for a 95% confidence interval (z) = 1.96

A confidence interval is defined by the following expression:

$M\pm z\sqrt{\frac{V}{n} }$

Applying the given data:

$8.5\pm 1.96\sqrt{\frac{9}{45} }\\8.5\pm 1.96\frac{3}{\sqrt 45}$

Writing in Excel statements, the limits of the interval would be

=8.5+1.96*3/SQRT(45), and =8.5-1.96*3/SQRT(45)

Therefore, the answer is alternative b.

8 0

3 years ago