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ruslelena [56]
3 years ago
9

Which expression is equivalent to-19 -11 ​

Mathematics
1 answer:
kupik [55]3 years ago
8 0

Answer:

wheres the picture??

Step-by-step explanation:

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Suppose a food scientist wants to determine whether two experimental preservatives result in different mean shelf lives for bana
melomori [17]

Answer:

The two sample t-test

Step-by-step explanation:

The appropriate test for thus is the two sample t test which is also known as the independent t test. This tests aims at determined whether there is a statistically significant difference between the means in two unrelated groups which in this context are a random sample with one type of preservative and another sample with another type of preservatives.

With this test, the researcher is able to compare the mean shelf lives of the bananas treated with the two different preservatives... The null hypothesis equalises the two means of the sample while the alternative does otherwise.

3 0
3 years ago
PLEASE HELP!!!!!! ILL GIVE BRAINLIEST *EXTRA 40 POINTS** !! DONT SKIP :((
Marina CMI [18]

Answer:

No. 1st is (0,2) 2nd is (0,5)

Step-by-step explanation:

3 0
2 years ago
Draw a line from each figure to an area
Georgia [21]

Answer:

A=27 cm^2

B=24 cm^2

C=26 cm^2

D=28 cm^2

Step-by-step explanation:

Break each problem down into individual shapes.

For instance, A can be split into a 3 by 3 square and a 6 by 3 square.

      Get the area by multiplying the length & height: A = L * H

For the triangles the area is the same equation divided by 2 A=LH/2

Shapes with unclear dimensions like C can be skipped and have their area revealed through process of elimination.

3 0
3 years ago
PLEASE HELP ASAP!!!!!
Kitty [74]
The total would be 180 degrees because angles on a straight line would always add up to 180.
(3x+31)+(2x-6)=180
5x+25=180
     -25   -25
5x=155
/5     /5
x=31
5 0
3 years ago
Read 2 more answers
Simplify 3(tan^2 theta - sec^2 theta)<br> a. 1<br> b. 0<br> c. -3<br> d. 3<br><br> *ITS NOT D*
nlexa [21]

Answer:

it's option c. - 3

Hope it will help :)❤

4 0
3 years ago
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