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denpristay [2]
3 years ago
7

Hiiii pls help i’ll give brainliest if you give me a correct answer ty!

Mathematics
1 answer:
netineya [11]3 years ago
6 0

Answer:

1. Answer: 1.643

2. Answer: 0.15

3. Diego needs to grow 3.62 inches

Step-by-step explanation:

Work through numbers one and two like basic addition and subtraction.

Number three is a little more tricky becuase is is a word problem. Since Diego needs to be 39.37 inches tall, but he's only 35.75 inches tall, you can do this.

39.37

-35.75

-----------= 3.62 inches.

A handy way to think of addition and subtraction with decimals, is to take the decimals out, do the problem that way, and add the decimals right back in after you have worked the problem.

If you need help learning more about addition and subtracting with decimals, dont be afraid to ask your parents and your teachers.

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2, 10 after a dilation by a scale factor of 1/2 centered at the<br> origin?
anzhelika [568]

Answer:

  (1, 5)

Step-by-step explanation:

When the center is the origin, the dilation factor multiplies each coordinate:

  (2, 10) ⇒ (1/2)(2, 10) = (1, 5)

3 0
2 years ago
HELP! please choose the correct answer from the photo
Rina8888 [55]

Answer:

10x+6

Step-by-step explanation:

the area of a rectangle is (length+height)*2

so you have to add two representations of the length and height and then multiply it by 2

7 0
2 years ago
Read 2 more answers
It is believed that Lake Tahoe Community College (LTCC) Intermediate Algebra students get less than seven hours of sleep per nig
Kitty [74]

Answer: No , at 0.05 level of significance , we have sufficient evidence to reject the claim that LTCC Intermediate Algebra students get less than seven hours of sleep per night, on average.

Step-by-step explanation:

Let \mu denotes the average hours of sleep per night.

As per given , we have

H_0:\mu=7\\H_a:\mu

, since H_a is left-tailed and population standard deviation is unknown, so the test is a left-tailed t -test.

Also , it is given that ,

Sample size : n= 22

Sample mean : \overline{x}=7.24

Sample  standard deviation : s= 1.93

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

i.e.  t=\dfrac{7.24-7}{\dfrac{1.93}{\sqrt{22}}}\approx0.58

For significance level \alpha=0.05 and degree of freedom 21 (df=n-1),

Critical t-value for left-tailed test= t_{\alpha, df}=t_{0.05,21}=- 1.7207

Decision : Since the test statistic value (0.58) > critical value  1.7207, it means we are failed to reject the null hypothesis .

[Note : When |t_{cal}|>|t_{cri}|, then we accept the null hypothesis.]

Conclusion: We have sufficient evidence to reject the claim that LTCC Intermediate Algebra students get less than seven hours of sleep per night, on average.

6 0
3 years ago
What is the equation of this line in standard form?
Tanya [424]
I believe the answer is 6x-7y=-11
4 0
3 years ago
Read 2 more answers
Graph this function:<br> y= 5x - 18
lutik1710 [3]
The graph is shown below. 

5 0
3 years ago
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