2 years ago

Work out (4 x 10-6) - (2 x 10-8) Give your answer in standard form.

Mathematics

1 answer:

Nadya [2.5K]2 years ago

5 0

Answer:

20x + 2

Step-by-step explanation:

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Answer:

See Below.

Step-by-step explanation:

Statements: Reasons:

$\displaystyle 1)\text{ } \Delta APB \text{ and } \Delta AQC \text{ are equilateral triangles}$ Given

$\displaystyle 2) \text{ } m \angle PAB = 60$ Definition of equilateral.

$3)\text{ } m \angle QAC = 60$ Definition of equilateral.

$4)\text{ } m\angle PAB = m\angle QAC$ Substitution

$5)\text{ } m\angle PAC=m\angle PAB+m\angle BAC$ Angle Addition

$\displaystyle 6)\text{ } m\angle QAB=m\angle QAC+m\angle BAC$ Angle Addition

$7)\text{ } m\angle QAB=m\angle PAB+m\angle BAC$ Substitution

$\displaystyle 8)\text{ } m\angle PAC=m\angle QAB$ Substitution

$9)\text{ } PA=BA$ Definition of equilateral

$10)\text{ } AC=AQ$ Definition of equilateral

$\displaystyle 11)\text{ } \Delta PAC \cong \Delta BAQ$ Side-Angle-Side Congruence*

$\displaystyle 12)\text{ } PC=BQ$ CPCTC

* SAS Congruence:

PA = BA

∠PAC = ∠QAB

AC = AQ

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2 years ago

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Which equation shows the quadratic formula used correctly to solve 7x2 = 9 + x for x?

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The equation should be 7x^2 -x-9=0

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Four different lines are drawn on a coordinate plane. The lines all pass through the origin each each line passes through one po

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it's C

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3 years ago

A pile of sand has been stored in the shape of a cone. Mr. Terwilliker knows that the pile is 20 feet tall and 102 feet in circu

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Answer:

The area of tarpaulin is 1315.63 ft^2.

Step-by-step explanation:

height, h = 20 feet

circumference, C = 102 feet

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r = 16.24 feet

Let the slant height is L.

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The curved surface area is

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3 years ago

Write this in standard form please

Tpy6a [65]

The standard form would be x+3y=-27

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