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3 years ago

Please please help me with this

Mathematics

1 answer:

maks197457 [2]3 years ago

5 0

Answer: 511.8 cm3

3.14x3x5x6x3=847.8

Step-by-step explanation:

16x7x3=336

847.8-336=847.8

Hope I'm right?

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If Δ ABC = Δ DEF, which one of these is a pair of corresponding parts?<br> CB and ED<br> AC and DF

Radda [10]

Answer:

AC and DF

Step-by-step explanation:

Corresponding sides as well as corresponding angles have a pair of same angles or sides that are in the same place in two different shapes that are similar.

Find attached the diagram used for solving the question

Since Δ ABC = Δ DEF

∠B corresponds to ∠E

∠A corresponds to ∠D

∠C corresponds to ∠F

As a result of the above:

Line AB corresponds to line DE

Line AC corresponds to line DF

Line BC corresponds to line EF

Therefore, if Δ ABC = Δ DEF, one of the pair of corresponding parts would be AC and DF.

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3 years ago

there are c cyclist in a cycle race 3/4 of the cyclist finish the race how many cyclist did not finish give a algebraic formula

zimovet [89]

1/4

if 3/4 cyclists finish then that leaves 1/4 of the group that did not finish

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2 years ago

How do you write 15,409 in two ways

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3 years ago

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A hiking trail down the side of Mt. Tom drops a vertical distance of 60 meters over a horizontal distance of 300 meters. What is

Lady_Fox [76]

Answer:

Step-by-step explanation:

Slope of the trail is expressed as;

Slope = vertical distance/horizontal distance

Given

Vertical distance = 60metres

Horizontal distance= 300metres

Substitute

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3 years ago

Using the Descartes Rule of Signs, describe the real zeroes of the function.

mrs_skeptik [129]

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$\bf \stackrel{\textit{positive roots}}{f(x)=}\underset{change}{2x^5-}x^4\underset{change}{-2x^3+}4x^2\underset{change}{+x-2} \\\\\\ \stackrel{\textit{negative roots}}{f(~-x~)=}-2x^5\underset{change}{-x^4+}2x^3\underset{change}{+4x^2-}x-2$

by the fundamental theorem of algebra, the polynomial has a degree of 5, so it has to have at most 5 zeros/solutions/roots.

f(x) has 3 sign changes, notice, that means, it has either 3, or (3-2), 1 positive zeros.

for f(-x), recall that x³, will be (-x)³ = (-x)(-x)(-x) = -x³, so in short, if the exponent is ODD, the sign changes for that term, if it's EVEN, it doesn't change.

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3 positive, 2 negative, 0 complex

1 positive, 2 negative, 2 complex *recall complex always come in pairs*

3 positive, 0 negative, 2 complex

1 positive, 0 negative, 4 complex.

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3 years ago