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bonufazy [111]
2 years ago
15

Plz help me!!!!!!!!! Whoever solves correct will mark brainlist

Mathematics
1 answer:
OleMash [197]2 years ago
7 0

Answer:

in picture

Step-by-step explanation:

Brainliest please~

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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
Running consumes about 720 calories per hour about how many are used if you run for 40 minutes
Agata [3.3K]

Answer:

288

Step-by-step explanation:

0.40hrs × 720 calories = 288 calories burned

7 0
3 years ago
What is the inverse of the function fx) x +3?
xz_007 [3.2K]
<span>My answer -
f(x)=x^3+2 To find the inverse function f(x)^-1 , we will assume" y=x^3+2 y-2= x^3 ==> x= (y-2)^1/3 ==> f(x)-1= (x-2)^1/3</span>
P.S

Happy to help you have an AWESOME!!!!! day
6 0
3 years ago
Find the 70th term of the following arithmetic sequence.<br><br> 12,17,22,27,...
nikdorinn [45]
Since it starts at 12 and is increasing by 5 each time, the 70th term will be;
12 + 5(70)
12 + 350
362

362 is the 70th term of the sequence.
8 0
3 years ago
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A Create a linear expression
frez [133]

Answer:

(2x+A)(2x+B) = 4x2 + (2B+ 2A)x + AB. Trial and error gives the factorization 4x2 - 3x - 10 - (4x+5)(x- 2) .Step-by-step explanation:

3 0
2 years ago
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