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3 years ago

HELP‼️ if ABC=DEF and GHI=JKL, is ABC=JKL? why or why not?

Mathematics

1 answer:

DENIUS [597]3 years ago

4 0

Step-by-step explanation:

no, we have no way to prove that they are equal. is DEF equaled JKL then ABC would be equal to it, but it's not

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ULT ma<br> 4. Write an expression, then evaluate.<br> a. 1/4of the sum of 18 and 6

OlgaM077 [116]

Answer: Required expression: $\dfrac14\times(18+16)$

Result: $\dfrac{17}{2}$

Step-by-step explanation:

Given phrase: $" \dfrac14\text{ of the sum of } 18\text{ and }6. "$

Required expression: $\dfrac14\times(18+16)$ ['+' used to express sum, 'x' used in place of 'of']

Since 18+16 = 34

Then,

$\dfrac14\times(18+16)=\dfrac14\times34 \\\\=\dfrac{1}{2}\times17\ \ \text{[Divide numerator and denominator by 2]}\\\\=\dfrac{17}{2}$

Hence, $\dfrac14\times(18+16)=\dfrac{17}{2}.$

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3 years ago

Two researchers, Jaime and Mariya, are each constructing confidence intervals for the proportion of a population who is left-

soldi70 [24.7K]

Answer:

Jaime's. Interval not centered around the point estimate.

Step-by-step explanation:

When constructing a confidence interval based on a point estimate, the obtained point estimate must be the central value of the interval.

For Jaime's interval

Lower bound = 0.078

Upper Bound = 0.193

$Central = \frac{0.078+0.193}{2} =0.1355$

For Mariya's interval

Lower bound = 0.051

Upper Bound = 0.189

$Central = \frac{0.051+0.189}{2} =0.12$

For a point estimate of 0.12, only Mariya's interval is adequate since Jaime's is not centered around the point estimate.

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3 years ago

What is the domain of f(x) = 2|x - 3| + 1 ?

defon

Domain: all reals, (-∝, ∝)

All inputs for x result in a solution.

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2 years ago

Dianne purchased a ham for $45.15. How many pounds is the ham if it sells for $6.45 per pound?

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3 years ago

Find the area of rectangle qrst if the area of rectangle defg is 108 cm2 and the scale factor is 3/4.

Levart [38]

Considering the scale as qrst being 3/4 of defg

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324/4 = 81

Area is 81 cm^2

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3 years ago