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3 years ago

FOR 40 POINTS The is used to measure volume. choices: meter gram liter

Mathematics

1 answer:

Pachacha [2.7K]3 years ago

4 0

Answer:

liter

Step-by-step explanation:

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9 + 7b - 666 +268 The polynomial in standard form

iVinArrow [24]

Answer:

7b-389

Step-by-step explanation:

This is the polynomial in standard form. Hope this helps!

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2 years ago

Find the center of the circle whose equation is (x + 5)2 + (y + 8)2 = 16

Hunter-Best [27]

The center would be at (-5,-8)

Hope this helps :)

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3 years ago

In a class test, +4 marks were awarded for the correct answers and -1 mark for the wrong answers. Student scores 40 marks. If hi

nikklg [1K]

Step-by-step explanation:

Let y the number of wrong answers got.

$11( + 4) + ( - 1)y = 40 \\ 44 - y = 40 \\ - y = - 4 \\ y = 4$

∴ He got 4 wrong answers.

7 0

3 years ago

Dana reflects point A(2,5) across line small script letter lℓ to get image point Upper A primeA′(6,1). What is an equation for

valentinak56 [21]

Firstly, we will draw diagram of the scenario

Dana reflects point A(2,5) across line small script letter lℓ to get image point Upper A primeA′(6,1)

It means that AA' is perpendicular bisects of line(l)

so, let's assume it intersects at point M

so, M will be mid-point between A and A'

$M=(\frac{2+6}{2},\frac{5+1}{2})$

$M=(4,3)$

M is a point on line (l)

now, we will find slope of line on AA'

x1=2 , y1=5

x2=6 , y2=1

$m=\frac{y_2-y_1}{x_2-x_1}$

now, we can plug values

$m=\frac{1-5}{6-2}$

$m=-1$

now, we know that line (l) and AA' are perpendicular to each other

so, slope of line(l) is -1/m

slope=1

so, we have slope and a point

$m=1$

$M=(4,3)$

now, we can use point slope form of line

$y-y_1=m(x-x_1)$

now, we can plug values

$y-3=1(x-4)$

$y=x-1$

so, the equation of line (l) is

$y=x-7$ ..............Answer

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3 years ago

Read 2 more answers

An ethanol railroad tariff is a fee charged for shipments of ethanol on public railroads. An agricultural association publishes

KIM [24]

Answer:

The probability that the mean is less than 110

P(x⁻<110) =0.5

Step-by-step explanation:

Explanation:-

Given the standard deviation of the Population' σ' = 1250

Given sample size 'n' = 350

The standard error of the mean determined by

$S.E = \frac{S.D}{\sqrt{n} }$

Standard error = $\frac{1250}{\sqrt{350} } = 66.8153$

by using normal distribution $z = \frac{x -mean}{S.E}$

$z = \frac{x^{-} -110}{66.8}$

cross multiplication 66.8z = x⁻-110

x⁻ = 66.81Z+110

P(x⁻<110)=P(66.81Z+110<110)

= P(66.81Z < 110-110)

= P(66.81Z<0)

= P(Z<0)

= 0.5- A(z₁)

= 0.5 - A(0) (here z₁=0)

= 0.5 -0.00

=0.5

Conclusion:- 

The probability that the mean is less than 110

P(x⁻<110) =0.5

4 0

3 years ago