Simplify the following expression 2x cubed y cubed over 4y squared

Using the inverse trig functions, find the measure of angle Z to the nearest degree.

Ksenya-84 [330]

Answer:

4

Step-by-step explanation:

because y is 90 and x is 20 so z is 71

6 0

2 years ago

A recent survey reported that small businesses spend 24 hours a week marketing their business. A local chamber of commerce claim

kakasveta [241]

Answer:

Following are the responses to the given choices:

Step-by-step explanation:

In step 1:

State the zero and alternate test hypotheses. Insert underneath.

$H_0 : \mu = 24: H_a : \mu < 24$

$H_0$ Smaller companies in their region are and they spend at least 24 hours per week on the marketing of the these companies

$H_1$ There really is no growth for smaller firms in their area because the companies spend or less 24 hours per week on marketing.

In step 2:

Each test statistics meaning is calculated. Around two decimal places for your reply.

$z=\frac{\bar{X}-\mu_{0}}{\frac{\sigma}{\sqrt{n}}}=\frac{23.2-24}{\frac{4.2}{\sqrt{88}}}=-1.787$

In step 3:

Draw a start and write the decision.

Since it is observed that $z=-1.787 < z_c=-1.64$ it is then concluded that the null hypothesis is rejected.

Consequently we consider that small companies in their field may not expand, as they spend or less 24 hours per week on marketing.

5 0

2 years ago

The ratio of lollipops to pieces of bubble gum at the party is 2 to 3. There are 24 lollipops. What is the total number of lo

disa [49]

Answer: 40

Step-by-step explanation: first make the ratio into a fraction, 2/3

then make 24 into a fraction with the numerator as a variable and the denominator as 24, x/24

then cross multiply 2 and 24.

2x24=48

then divide 48 by 3, 16.

last add the number of lollipops to 16 and the answer is 40.

5 0

2 years ago

Read 2 more answers

PLEASE SHOW ALL THE STEPS THAT YOU USE TO SOLVE THIS PROBLEM

Mademuasel [1]

Answer:

{x = 1 , y=1, z=0

Step-by-step explanation:

Solve the following system:

{-2 x + 2 y + 3 z = 0 | (equation 1)

{-2 x - y + z = -3 | (equation 2)

{2 x + 3 y + 3 z = 5 | (equation 3)

Subtract equation 1 from equation 2: