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3 years ago

THIS IS AN EMERGENCY PLEASE HELP MEE!!!!!! I NEED HELP!!!

Mathematics

2 answers:

sertanlavr [38]3 years ago

4 0

Answer:

19 percent i believe

Step-by-step explanation:

blagie [28]3 years ago

3 0

The answer is 19% for the question

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2.The mean area of several thousand apartments in a new development is advertised to be 1,100 square feet. A consumer advocate h

KiRa [710]

Answer:

Null Hypothesis, $H_0$ : $\mu$ = 1,100 square feet

Alternate Hypothesis, $H_A$ : $\mu$ < 1,100 square feet

Step-by-step explanation:

We are given that the mean area of several thousand apartments in a new development is advertised to be 1,100 square feet.

A consumer advocate has received numerous complaints that the apartments are smaller than advertised.

Let $\mu$ = mean area of several apartments.

So, Null Hypothesis, $H_0$ : $\mu$ = 1,100 square feet

Alternate Hypothesis, $H_A$ : $\mu$ < 1,100 square feet

Here, null hypothesis states that the mean area of apartments are same as advertised.

On the other hand, alternate hypothesis states that the mean area of apartments are smaller than advertised.

So, this would be the appropriate null and the alternative hypothesis to test this claim.

4 0

3 years ago

How much money do you have to give to brainley to get your questions anwsered alot

Aleksandr-060686 [28]

Answer:

Yes

Step-by-step explanation:

Well, I'd say yes, but might be of course

6 0

3 years ago

Show that Cov(X, Y 1 Z) 5 Cov(X, Y) 1 Cov(X, Z). b. Let X1 and X2 be quantitative and verbal scores on one aptitude exam, and le

Vlad1618 [11]

Answer:

x11and x2. arevvvscores

7 0

3 years ago

Harold bought 5 apples for $ 1.30. What is the unit price?

Firdavs [7]

What is unit price?- unit price is the cost of one item(which in this case is an apple)

5 apples- $1.30
1 apple- 1.30 / 5
= $0.26

7 0

3 years ago

URGENT: I need to solve this problem: 4 - (-6), but that's not all, I'm not really good at math and I need step by step answers

Rama09 [41]

Answer:

3.59

6 7/12

Step-by-step explanation:

4 - (-6)

= 4+ 6 ( because when we multiply the negative sign with the negative sign we get a positive sign or a plus sign)

= 10

-2.5 + 6.1 -10.3 - (-7.79) -4 + 6 1/2

= -2.5 + 6.1 -10.3 +7.79 -4 + 6.5 [ (-*-=+) ( converting 6 1/2 into decimal = 6.5)]

= 6.1+7.79+ 6.5 -2.5 -10.3-4 { adding the + numbers and - numbers separately}

= 20.39 - 16.8 { subtracting the totals of + and - numbers}

= 3.59

8 5/6 + (-2 1/4)

= 53/6 - 9/4 { Converting into improper fractions}

= 53( 2) - 9(3)/12 { Taking LCM = 12}

= 106-27/12

= 79/12

= 6 7/12

{ Converting into improper fractions and vice versa}

we multiply the denominator with the whole number and add it to the numerator to get the improper fraction.( 8 5/6= 53/6)

we divide the numerator with the denominator the answer gives the whole number and the remainder gives the numerator of the proper fraction. ( 79/12 = 6 7/12)

{ Taking LCM = 12}

Factors of 6 are 3 and 2

Factors of 4 are 2 and 2

Least Common Multiple is taking the common factors and multiplying it with the rest . 2 is common in both . It will be taken once and then multiplied with the other 2 and 3 so we get

LCM = 2*2*3= 12

3 0

4 years ago