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3 years ago

MATCH THE number WITH ITS OPPOSITE

Mathematics

1 answer:

ycow [4]3 years ago

6 0

To match the number with the opposite, we are flipping the sign. If the sign is originally a negative, it would become a positive, and vice versa.

Term: 3.2 Match (Opposite): B) - 3.2

Term: -2.3 Match (Opposite): D) 2.3

Term: -1.5 Match (Opposite): C) 1.5

Term: 5.1 Match (Opposite): A) -5.1

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Find the y-intercept and graph the equation y=15x

icang [17]

The y-intercept is 0 because you can add it to the equation and it won't change your slope.

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3 years ago

What substance has a mass of 148g and a volume of 40cm3 ?

rusak2 [61]

The substance that has a mass of 148g and a volume of 40cm³ is 3.7g/cm³

In order to get the substance that has a mass of 148g and a volume of 40cm³, we need to first get the density of the substance.

Density is the ratio of mass per unit volume of a substance

Density = Mass/Volume

Given the following:

Mass = 148g

Volume = 40cm³

Density = 148/40

Density = 3.7g/cm³

Hence the density of the substance is 3.7g/cm³

Learn more here: brainly.com/question/17780219

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2 years ago

One grain of this sand approx weighs 7 x 10^-5

nataly862011 [7]

Answer:

brainliest? i answered for you bro

Step-by-step explanation:

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3 years ago

Given sec theta=-4/3 and 90 degrees < theta< 180 degrees; find sin 2 theta

babunello [35]

Answer:

Answer is option "a" i.e.

$\frac{-3\sqrt{7}}{8}$

Step-by-step explanation:

sin2Ф = 2sinФ.cosФ

So, we need values of sinФ and cosФ but we are given secФ. We can find sinФ and cosФ with the help of secФ first by finding all sides of triangle and then by using Pythagorean theorem.

Given that,

secФ = -4/3

While,

secФ = hypotenuse/base

Hence,

<u>length of hypotenuse = 4</u>

<u>length of base = 3</u>

To find perpendicular we'll use Pythagorean theorem:

(hyp)² = (base)² + (perp)²

$perp = \sqrt{hyp^2 - base^2}$

$perp = \sqrt{16-9}\\ perp = \sqrt{7}$

<u>length of perpendicular = √7</u>

Now, to find sinФ and cosФ

sinФ = perp/hyp

cosФ = base/hyp

<h3><u>Finally to find sin2Ф</u></h3>

sin2Ф = 2sinФ.cosФ

$=2*\frac{\sqrt{7}}{4} *\frac{3}{4}\\=\frac{3\sqrt{7}}{8}$

<h3><u>negative sign of sin2Ф</u></h3>

As 90≤Ф≤180

So multiplying it by 2

180≤Ф≤360

which is 3rd and 4th coordinate in which sin has negative value.

6 0

3 years ago

Read 2 more answers

Which statement best describes (3 × 4) × 6 = 3 × (4 × 6)?

Murrr4er [49]

The right answer is:

C. The grouping of the factors is changed, but the product is the same.

Step-by-step explanation:

Given statement is:

(3 × 4) × 6 = 3 × (4 × 6)

The properties that are applied on statements are commutative, associative and distributive.

Out of these, associative property states that the grouping of three factors can change but the end product will remain the same

i.e.

(a*b)*c = a * (b*c)

So for the given statement,

The right answer is:

C. The grouping of the factors is changed, but the product is the same.

Keywords: Properties, associative property

Learn more about associative property at:

#LearnwithBrainly

4 0

3 years ago