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miskamm [114]
2 years ago
10

Pls help my last one ​

Mathematics
2 answers:
Mrac [35]2 years ago
8 0
0.5 of Calcite is $3.54 and 3 kg of granite is $23.49

$3.54+$23.49= the total cost of calcite and granite

So 3.54+23.49=27.03

The total cost of 0.5 kg of calcite and 3 kg of granite is $23.49
ikadub [295]2 years ago
7 0

Answer:

7.59/ KG

Step-by-step explanation:

plss help me in my qwestion

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Each score in a set of data is multiplied by 3, and then 4 is subtracted from the result. If the original mean is 10 and the ori
olganol [36]

The new mean and standard deviation is 26 and 15, when each score in data set is multiplied by 5 and then 7 is added.

According to the question,

Original mean is 10 and original standard deviation is 5 . In order to find to new mean and standard deviation when each score in data set is multiplied by 5 and then 7 is added.

First "change of scale" when every score in a data set is multiplied by a constant, its mean and standard deviation is multiplied by a same constant.

Mean: 10*3 = 30

Standard deviation: 5*3 = 15

Secondly "change of origin" when every score in a data set by a constant, its mean get  added or subtracted by the same constant and standard deviation remains constant.

Applying change of origin in the above mean and standard deviation  

Mean: 30 - 4 = 26

Standard deviation: Remains same = 15

Hence, the new mean and standard deviation is 26 and 15, when each score in data set is multiplied by 5 and then 7 is added.

Learn more about Mean and standard deviation here

brainly.com/question/26841432

#SPJ4

5 0
2 years ago
I lost track on how to do this in high school I’m helping out my lil brother
Goryan [66]

a. -7  < |-9|

b. 2 > -2

c, |-5| = |5|

4 0
2 years ago
Read 2 more answers
(8b^2/3*9t^3/5)(8b^5/3*9t^3/5)
erma4kov [3.2K]

Answer:

5,184•b•t^6/5

Step-by-step explanation:

Here, we want to multiply the expressions

According to indices law, if we have same bases, we add up the exponents

Thus, we have that;

8 *8b^(2/3+5/3) * 9 * 9 * t^(3/5+3/5)

= 64 * b * 81 * t^6/5

= 5,184bt^6/5

8 0
2 years ago
A psychologist has a taxable income of 59450 last year. If he paid 10% of his income between $0 and $8350, 15% of his income bet
Vsevolod [243]
D. Multiply each rate by the range of each section.

NOTE: Do not multiply by the high amount, but rather the range of numbers within it. 
7 0
3 years ago
The measure of an angle is 78°. What is the measure of a complementary angle?
ki77a [65]
First you need to know the definition of a complementary angle. That means that two angles add up to 90 degrees, or a right angle.

To find an angle complementary to a 78 degree angle, you need to subtract 78 from 90. 

90 - 78 = 12
6 0
3 years ago
Read 2 more answers
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