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3 years ago

Simplify the attached question

Mathematics

2 answers:

nignag [31]3 years ago

7 0

Okkkkkkkkkkkkkk the answer is 12x 2

katovenus [111]3 years ago

3 0

Answer:

12x²

Step-by-step explanation:

Check the attachment for steps.

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The researcher trains a sample of 16 individuals in mindfulness and then collects data on how long they spend eating per day. Th

Mila [183]

Answer:

The calculated t-value is t=0.47.

Step-by-step explanation:

<em>The question is incomplete:</em>

<em>"Americans typically eat quickly and do not spend time enjoying their meal. A researcher plans to test if those trained in mindfulness will take more time to enjoy their meal (that is, they will spend more time eating than the general population). The general population spends an average of 68 minutes per day combined eating their three meals. The researcher trains a sample of 16 individuals in mindfulness and then collects data on how long they spend eating per day. The sample mean for those trained in mindfulness equals 74; the SS = 150. What is the calculated t-value? Round your answer to two decimal places."</em>

The degrees of freedom are (n-1)=(16-1)=15

The standard deviation is:

$s=\sqrt{\frac{SS}{n-1}}=\sqrt{\frac{150}{16-1}}=\sqrt{10}=3.16$

The t-value can be calculated as:

$t=\frac{M-\mu}{\sigma/\sqrt{n}} =\frac{74-68}{3.16/\sqrt{16}} \\\\t=\frac{6}{3.16*4}=\frac{6}{12.64}= 0.47$

4 0

3 years ago

Geometry. Very basic.

AveGali [126]

Answer:

A)10.25 cm ; B)5 square cm

Step-by-step explanation:

Formula:

p=(a+b+c) [p= perimeter ; a,b , and c are the side lengths.]

∴The perimeter of the triangle =(4+2.75+3.5) cm

=10.25 cm

Formula:

A = 1/2 . b .h [A=area ; b= base ; h= height]

∴The area of the triangle = (1/2 . 4 . 2.5) square cm [b=4 ; h=2.5]

=5 square cm

6 0

3 years ago

using the midpoint formula, solve for the midpoint of the segment with these pairs of endpoints (-8,21) and (32,-2)

dusya [7]

Answer

(24,9.5) using the midpoint formula

5 0

3 years ago

Read 2 more answers

Someone please help with this proof

Novosadov [1.4K]

Easy so you have to choose them then add them and yeah hope this helps bbg

7 0

3 years ago

If 7 gallons of paint are used to paint 4 classrooms at Cascade Middle

denis-greek [22]

Answer: 28 gallons of paint needed to paint 16 classrooms.

Step-by-step explanation:

As 7 gallons Paint 4 classrooms so if we need to paint 16 classrooms which four times 4 classrooms so 7*4=28 gallons will be needed to paint 16 classrooms

7 0

3 years ago

Simplify the attached question​

Simplify the attached question