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2 years ago

Please help as possible!! Is this right?

Mathematics

2 answers:

SIZIF [17.4K]2 years ago

7 0

Yes because if sam took 12 tests in six weeks and it asking how many tests Sam have taken after 28 weeks of school

Anuta_ua [19.1K]2 years ago

7 0

Yes that’s right I did that before

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Question 13

kicyunya [14]

Answer:

The c intercept is 42

The t intercepts are: 6, -1 and 7

Step-by-step explanation:

Given

$c(t) = (t - 6)(t +1)(t-7)$

Solving (a): The c intercept

Simply set t to 0

$c(t) = (t - 6)(t +1)(t-7)$

$c(0) = (0 - 6)(0 +1)(0-7)$

$c(0) = (- 6)(1)(-7)$

$c(0) = 42$

Solving (b): The t intercept

Simply set c(t) to 0

$c(t) = (t - 6)(t +1)(t-7)$

$(t - 6)(t +1)(t-7) = 0$

Split

$t - 6= 0,\ \ t +1= 0,\ \ t-7 = 0$

Solve for t

$t = 6,\ \ t =-1,\ \ t=7$

4 0

3 years ago

The safest way for someone to make an online purchase is to

Elena-2011 [213]

Answer:

It is C - buy from a reputable website

Step-by-step explanation:

I got it right on the quiz. Good luck and may the Lord bless you!

4 0

3 years ago

Read 2 more answers

a seed company has a test plot in which it is testing the germination of a hybrid seed, They plant 50 rows of 40 seeds per row.

ziro4ka [17]

Answer:

Mean = $\sum x P(x) = 36.86$

Standard deviation = $\sum x^2P(X)=1360.9$

Step-by-step explanation:

x P(x) $x \times P(x)$ $x^2 \times P(x)$

33 0.02 0.66 21.78

34 0.06 2.04 69.36

35 0.1 3.5 122.5

36 0.2 7.2 259.2

37 0.24 8.88 328.56

38 0.26 9.88 375.44

39 0.1 3.9 152.1

40 0.02 0.8 32

1 36.86 1360.9

We are supposed to find mean and standard deviation

Mean = $\sum x P(x) = 36.86$

Standard deviation = $\sum x^2P(X)=1360.9$

7 0

3 years ago

Rapheal paid $624 for a camera during a 60% off sale. What was the cameras regular rice?

Nostrana [21]

$1040.00
______________________________________________
Raphael paid $624

624/.60= 1040.00

4 0

3 years ago

Mrs. Wilkinson can buy a 20-ounce box of cereal for $3.60 or a 28-ounce box of cereal for $4.20. Which is the better buy?

Vsevolod [243]

3.60 / 20 = 0.18

4.20 / 28 = 0.15

The 28-ounce box has better value, as cost-per-ounce is lower.

4 0

3 years ago