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Tanzania [10]
3 years ago
9

{x + 3y =- 5 {9x + 3y = 3

Mathematics
1 answer:
LiRa [457]3 years ago
7 0

Answer:

1. y-intercept(s):

(0,−53)

x-intercept(s):  

(−5,0)

2. x-intercept(s):

(13,0)

y-intercept(s):

(0,1)

Step-by-step explanation:

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What is the area of a basketball court that is 94 feet long and 50 feet wide?
son4ous [18]

Answer:

Just multiply

length x width = area

94 x 50 = 4700

Step-by-step explanation:

4 0
3 years ago
Team A scores 13 more points then team B. The tital of their scores was 47. How many points did each team score?
KATRIN_1 [288]

Answer:

Team B scored 17 points and team A scored 30 points.

Step-by-step explanation:

17 + 13 = 30

30 + 17 = 47

47 total points

4 0
3 years ago
A scale drawing of a rectangle painting is 12 inches long and 8 inches tall. The actual painting is 12 feet tall. What is the sc
love history [14]

Answer:

x = 18

Step-by-step explanation:

\frac{8}{12}  = \frac{12}{x}

  • then cross-multiply

8x = 12 * 12

8x = 144

\frac{8x}{8} = \frac{144}{8}

x = 18

5 0
3 years ago
An average computer mouse inspector can inspect 50 mice per hour. The 48 computer mice inspectors at a particular factory can on
Ronch [10]

Answer:  C. Yes, because -2.77 falls in the critical region .

Step-by-step explanation:

Let \mu be the population mean .

As per given , we have

H_0:\mu=50\\\\ H_a: \mu

Since the alternative hypothesis is left-tailed and population standard deviation is not given , so we need to perform a left-tailed t-test.

Test statistic : t=\dfrac{\overline{x}-\mu}{\dfrac{s}{\sqrt{n}}}

Also, it is given that ,

n= 48

\overline{x}=46

s= 10

t=\dfrac{46-50}{\dfrac{10}{\sqrt{48}}}=\dfrac{-4}{\dfrac{10}{6.93}}\\\\=\dfrac{-4}{1.443}\approx-2.77

Degree of freedom = df = n-1= 47

Using t-distribution , we have

Critical value =t_{\alpha,df}=t_{0.025,47}=2.0117

Since, the absolute t-value (|-2.77|=2.77) is greater than the critical value.

So , we reject the null hypothesis.

i.e. -2.77 falls in the critical region.

[Critical region is the region of values that associates with the rejection of the null hypothesis at a given probability level.]

Conclusion : We have sufficient evidence to support the claim that these inspectors are slower than average.

Hence, the correct answer is C. Yes, because -2.77 falls in the critical region

4 0
3 years ago
Question 8 of 10
AleksandrR [38]
B. A worker with 40 hours of training is paid $1700 per month.
4 0
3 years ago
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