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faltersainse [42]
3 years ago
8

Break apart strategy for 518+372=

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
8 0
518 + 372

= 500 + 18 + 300 + 72

= 800 + 18 + 72

= 800 + 90

= 890
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When is a rhombus a rectangle?
Alinara [238K]
Check the picture below.

a rhombus is a quadrilateral with all equal sides.

now, the sides do not have to be slanted, but they must be equal, IF it happens that all sides meet at right-angles, then the rhombus is a "rectangle", due to its right-angleness, incidentally enough, since all sides are equal, if that ever happens, it also becomes a square.

6 0
3 years ago
Read 2 more answers
A quality control engineer is interested in estimating the proportion of defective items coming off a production line. In a samp
fenix001 [56]

Answer:

The lower bound of a 99% C.I for the proportion of defectives = 0.422

Step-by-step explanation:

From the given information:

The point estimate = sample proportion \hat p

\hat p = \dfrac{x}{n}

\hat p = \dfrac{55}{100}

\hat p = 0.55

At Confidence interval of 99%, the level of significance = 1 - 0.99

= 0.01

Z_{\alpha/2} =Z_{0.01/2} \\ \\ = Z_{0.005} = 2.576

Then the margin of error E = Z_{\alpha/2} \times \sqrt{\dfrac{\hat p(1-\hat p)}{n}}

E = 2.576 \times \sqrt{\dfrac{0.55(1-0.55)}{100}}

E = 2.576 \times \sqrt{\dfrac{0.2475}{100}}

E = 2.576 \times0.04975

E = 0.128156

E ≅ 0.128

At 99% C.I for the population proportion p is: \hat p - E

= 0.55 - 0.128

= 0.422

Thus, the lower bound of a 99% C.I for the proportion of defectives = 0.422

6 0
2 years ago
Which of the numbers listed below are solutions to the equation? Check all
8_murik_8 [283]

Answer:

The answer is 25 and -25 :)

If this was helpful, please consider giving brainliest!

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Plz answer quick!!!
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75.36 is the answer.

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