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3 years ago

8. Solve x/10 = –7. A. x = –0.7 B. x= –17 C. x = –70 D. x = 3

1 answer:

4 0

For this problem, I believe you would just have to plug in for x.

For example, -17 divided by 10 and so on.

The answer should be C, -70. -70 divided by 10 equals -7.

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A square and a rhombus have the following in common EXCEPT:

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D.All interior angles are 90 degrees

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3 years ago

Which equation is equivalent to

o-na [289]

The equation x² + 81 = (x + 10)² is equivalent to $\sqrt{x^2 + 81} = x + 10$

<h3>How to determine the equivalent equation?</h3>

The equation is given as:

$\sqrt{x^2 + 81} = x + 10$

Square both sides

x² + 81 = (x + 10)²

Although it can be further simplified, the above equation is equivalent to $\sqrt{x^2 + 81} = x + 10$

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2 years ago

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3 years ago

a school has 300boys.if this is 60% of the total no. of pupils in the school, how many girls are there in the school?

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3 0

3 years ago

Read 2 more answers

With food prices becoming a great issue in the world; wheat yields are even more important. Some of the highest yielding dry lan

Rzqust [24]

Answer:

Option E) 61.6

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 100 bushels per acre

Standard Deviation, σ = 30 bushels per acre

We assume that the distribution of yield is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(X>x) = 0.90

We have to find the value of x such that the probability is 0.90

P(X > x)

$P( X > x) = P( z > \displaystyle\frac{x - 100}{30})=0.90$

$= 1 -P( z \leq \displaystyle\frac{x - 100}{30})=0.90$

$=P( z \leq \displaystyle\frac{x - 100}{30})=0.10$

Calculation the value from standard normal table, we have,

$P(z$

$\displaystyle\frac{x - 100}{30} = -1.282\\x = 61.55 \approx 61.6$

Hence, the yield of 61.6 bushels per acre or more would save the seed.

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3 years ago