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Fofino [41]
2 years ago
15

Draw an area model. Then, Solve using the standard algorithm. 642 x 207

Mathematics
1 answer:
Inessa05 [86]2 years ago
4 0

Uhmm,, 132,894?

132,894 ba?

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Complete parts ​(a) through ​(c) below.
Yuki888 [10]

Answer:

a)t_{crit}= 1.34

b) t_{crit}=-2.539

c) t_{crit}=\pm 2.228

Step-by-step explanation:

Part a

The significance level given is \alpha=0.1 and the degrees of freedom are given by:

df = n-1= 15

Since we are conducting a right tailed test we need to find a critical value on the t distirbution who accumulates 0.1 of the area in the right and we got:

t_{crit}= 1.34

Part b

The significance level given is \alpha=0.01 and the degrees of freedom are given by:

df = n-1= 20-1=19

Since we are conducting a left tailed test we need to find a critical value on the t distirbution who accumulates 0.01 of the area in the left and we got:

t_{crit}=-2.539

Part c

The significance level given is \alpha=0.05 and \alpha/2 =0.025 and the degrees of freedom are given by:

df = n-1= 11-1=10

Since we are conducting a two tailed test we need to find a critical value on the t distirbution who accumulates 0.025 of the area on each tail and we got:

t_{crit}=\pm 2.228

4 0
3 years ago
Steve paid 10% tax on a purchase of 40$
aivan3 [116]
He would need to pay $44 for the purchase because
10% x $40 = $4
$40 + $4 = $44

hope this helped ((:
5 0
3 years ago
Which function has lowest rate of change?
Delvig [45]

Answer:

A: Algebraic Function

Step-by-step explanation:

Algebraic function is given as;

5x – 2y = 15

Since we are dealing with rate of change, let's make y the subject first and find dy/dx.

Thus;

2y = 5x - 15

y = (5x/2) - 15/2

dy/dx = 5/2

dy/dx = 2.5

The verbal function is given as;

Cost of 5 pencils is 15 dollars

Thus, rate of 1 pencil = 15/5 = 3 pencils per dollar

We can see that the lowest rate of change is 2.5 and it is the algebraic function.

8 0
3 years ago
Tell me the answer ​
romanna [79]
Show a picture or type the question so we can give you an answer please.
5 0
3 years ago
Can someone please help me with this question ?
____ [38]
The cost of water would be $615 as he needs 3 acre-feet of water for 205 acre/ft
5 0
3 years ago
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