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mixer [17]
3 years ago
5

Answer to this question

Mathematics
2 answers:
horrorfan [7]3 years ago
4 0
1,5 is the answer to 8
Alona [7]3 years ago
3 0
-0.6875 is the answer to number 5
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Karl uses 8 whole square tiles and 8 half square tiles to make a mosaic. What is the area of his mosaic?​
trapecia [35]

Answer:

48

Step-by-step explanation:

8 squares=32

8 half squares=16

32+16=48

There are 4 sides to a 8 whole squares 8*4=32

There a 2 sides to 8 half squares 8*2=16

8 0
3 years ago
4(3x+5)=6(x+8)-x someone please help me with this equation
zvonat [6]

Answer:

x=4

Step-by-step explanation:

4(3x+5)=6(x+8)-x

Distribute

12x +20 = 6x +48 -x

Combine like terms

12x+20 = 5x+48

Subtract 5x from each side

12x-5x +20 = 5x-5x+48

7x +20 = 48

Subtract 20 from each side

7x+20-20 = 48-20

7x = 28

Divide each side by 7

7x/7 = 28/7

x = 4

7 0
3 years ago
Read 2 more answers
In a zoo there are 17 more monkeys than lions and 30 more lizards than lions. If there were 151 monkeys, lions and lizards in to
kvv77 [185]
If the amount of monkeys is m, lions is a, and lizards is b, then a+b+m=151, 17+a=m (since there are 17 more monkeys than lions), and 30+a=b. Substituting those values in (17+a=m and 30+a=b), we have 30+17+a+a+a=151=47+3a. Subtracting 47 from both sides, we get 104=3a. Next, we can divide both sides by 3 to get 104/3=a (the number of lions), 104/3+17=the number of monkeys, and 104/3+30=the number of lizards. Somehow we end up with a fraction (not a whole number), so there are 2/3rds of monkeys floating around using this logic.


8 0
3 years ago
In testing the hypothesis H 0 colon mu subscript D less or equal than 5 space v s. space H 1 colon mu subscript D greater than 5
malfutka [58]

Answer:

The null hypothesis failed to be rejected (P-value=0.014).

Step-by-step explanation:

This is a hypothesis test for the population mean.

The null and alternative hypothesis are:

H_0: \mu=5\\\\H_a:\mu> 5

The significance level is α=0.01.

The sample has a size n=20.

The sample mean is M=9.

As the standard deviation of the population is not known, we estimate it with the sample standard deviation, that has a value of s=7.5.

The estimated standard error of the mean is computed using the formula:

s_M=\dfrac{s}{\sqrt{n}}=\dfrac{7.5}{\sqrt{20}}=1.677

Then, we can calculate the t-statistic as:

t=\dfrac{M-\mu}{s/\sqrt{n}}=\dfrac{9-5}{1.677}=\dfrac{4}{1.677}=2.385

The degrees of freedom for this sample size are:

df=n-1=20-1=19

This test is a right-tailed test, with 19 degrees of freedom and t=2.385, so the P-value for this test is calculated as (using a t-table):

P-value=P(t>2.385)=0.014

As the P-value (0.014) is bigger than the significance level (0.01), the effect is  not significant.

The null hypothesis failed to be rejected.

3 0
3 years ago
Me. Ling bought party hats for the 86 fourth graders at her school. The hats come in packages of 6. How many packages did Me. Li
lisabon 2012 [21]
About 15 because the answers 14.33
5 0
3 years ago
Read 2 more answers
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