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3 years ago

Which ratio is equivalent to 1 to 8? 7 to 14 7 to 9 6 to 41 6 to 48

Mathematics

2 answers:

Ivan3 years ago

5 0

6 to 48 simplified

it becomes 1 to 8

so the answer is 6 to 48

plz mark as brainliest

Harrizon [31]3 years ago

3 0

I think the answer is 7 to 14

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What are the solutions to the following system? StartLayout Enlarged left-brace 1st row negative 2 x squared + y = negative 5 2n

Yakvenalex [24]

Answer:

$(\sqrt{2},-1),(-\sqrt{2},-1)$

(StartRoot 2 EndRoot, negative 1) and (negative StartRoot 2 EndRoot, negative 1)

Step-by-step explanation:

we have

$-2x^{2} +y=-5$ ----> equation A

$y=-3x^{2} +5$ -----> equation B

solve by substitution

substitute equation B in equation A

$-2x^{2} +(-3x^{2} +5)=-5$

solve for x

$-5x^{2} +5=-5$

$-5x^{2}=-10$

$x^{2}=2$

$x=\pm\sqrt{2}$

<em>Find the value of y</em>

$y=-3x^{2} +5$

For $x=\sqrt{2}$ ----> $y=-3(\sqrt{2})^{2} +5=-1$

For $x=-\sqrt{2}$ ----> $y=-3(-\sqrt{2})^{2} +5=-1$

therefore

The solutions are

$(\sqrt{2},-1),(-\sqrt{2},-1)$

(StartRoot 2 EndRoot, negative 1) and (negative StartRoot 2 EndRoot, negative 1)

8 0

4 years ago

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sineoko [7]

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The 10th term of an arithmetic proression is 68 and the common difference is 7 find the first term of the sequence

leonid [27]

Answer:

Step-by-step explanation:

first term + (10-1)7=68

first term= 68- 63=5

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3 years ago

What is the difference between 3G andg3

lbvjy [14]

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3 years ago

A research paper reports, "… in a sample with 350 observations, the sample average Y = 0.9 is statistically significantly differ

vladimir2022 [97]

Answer:

I would reject the null hypothesis.

Step-by-step explanation:

The test is a two-tailed test because it is stated that the alternate hypothesis is two-sided.

Degree of freedom = n - 1 = 350 - 1 = 349

At 349 degrees of freedom and 5% significance level, the critical values are -1.96702 and 1.96702

Conclusion:

Reject the null hypothesis because the test statistic 3 falls outside the region bounded by the critical values -1.96702 and 1.96702.

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3 years ago