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3 years ago

Only answer #3 please

Mathematics

2 answers:

levacccp [35]3 years ago

7 0

Answer:

-2

Step-by-step explanation:

you would go to wear your line crosses you y-axis, which is the vertical one

so it crosses at -2

fgiga [73]3 years ago

3 0

Answer:

-2

Step-by-step explanation:

Look for where the line crosses the y-axis on the graph

The point is -2

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Write (8a-^3) -2/3 in simplest form

Anna71 [15]

$(8a^{-3})^{\frac{-2}{3}} = \frac{a^2}{4}$

Solution:

Given that,

$(8a^{-3})^{\frac{-2}{3}$

We have to write in simplest form

Use the following law of exponent

$(a^m)^n = a^{mn}$

Using this, simplify the given expression

$(8a^{-3})^{\frac{-2}{3}} = 8^{\frac{-2}{3}} \times a^{ -3 \times \frac{-2}{3}}\\\\Simplifying\ we\ get\\\\(8a^{-3})^{\frac{-2}{3}} = 8^{\frac{-2}{3}} \times a^2\\\\We\ know\ that\ 8 = 2^3\\\\Therefore\\\\(8a^{-3})^{\frac{-2}{3}} =2^3^{\frac{-2}{3}} \times a^2\\\\(8a^{-3})^{\frac{-2}{3}} =2^{-2} \times a^2\\\\(8a^{-3})^{\frac{-2}{3}} = \frac{a^2}{4}$

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3 years ago

Solve the inequality 9h+2< -79

Dmitrij [34]

9h < -79 - 2
9h < -81
h < -81/9
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3 years ago

Is 2(x-5)=5x+23 a true or false equation

sergiy2304 [10]

False ......................................

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2 years ago

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The table below lists the masses and volumes of several pieces of the same type of metal. There is a proportional relationship b

castortr0y [4]

∵ There is a proportional relationship between the mass and the volume of the places of metal.
Let volume = v and mass = m
So, the relation between volume and mass will take the form:
 v = km
where k is constant and can be calculated as follow:
when m = 34.932 , and v = 4.1 ⇒⇒⇒ k = v/m = 0.117371
when m = 47.712 , and v = 5.6 ⇒⇒⇒ k = v/m = 0.117371
when m = 61.344 , and v = 7.2 ⇒⇒⇒ k = v/m = 0.117371
when m = 99.684 , and v = 11.7 ⇒⇒⇒ k = v/m = 0.117371

∴ v = 0.117371 m

For v =15.3
∴ m = v/k = 15.3/0.117371 = 130.356 gram

The mass of a piece of this metal that has a volume of 15.3 cubic centimeters ≈ 130.4 gram (round to the nearest tenth)

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3 years ago

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The triangles shown below must be congruent.

Anestetic [448]

Answer:

Yes the triangles are congurant.

Step-by-step explanation:

Because if you can see up and down triangles this means they are congurent.

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