All categories

3 years ago

True or False, Intrusive rocks have large crystals?

Mathematics

1 answer:

Sladkaya [172]3 years ago

4 0

<h2>Answer:</h2>

<h2>Step-by-step explanation:</h2>

<h3>Intrusive rocks, have large crystals that are usually visible without a microscope. </h3>

<h2>Therefore it's true. </h2>

You might be interested in

1.) Solve 2x^2-12x+20=0 using the quadratic solution set? What is the solution set?

marshall27 [118]

Please, share just ONE problem at a time. Thanks.

<span>Solve 2x^2-12x+20=0:
Simplify this by dividing each term by 2: x^2 - 6x + 10 = 0

Identify a, b and c: a=1, b=-6 and c=10. Then b^2=36.

Write out the solutions using the quadratic formula:

6 plus or minus sqrt(36-40)
x = ---------------------------------------
2

sqrt(36-40) = sqrt(-4) = plus or minus i2

Then:

6 plus or minus i2
x = --------------------------- (answer)
2</span>

4 0

3 years ago

corey wants to predict how much time a run will take based on the distance of the run he collected some data on the time (in min

Elodia [21]

Answer:

The answer is c

Step-by-step explanation:

I got this awnser from khan

7 0

3 years ago

Plz help I need it by today

neonofarm [45]

Answer:

2688x^2 + 3640x + 1225

Step-by-step explanation:

multiply the expression

5 0

3 years ago

Read 2 more answers

If A (-3, 4) is one endpoint of a segment and B(-4,7) is the midpoint of the segment, find the other endpoint.

Nutka1998 [239]

Answer:

Take the slopes, such that 7-4/-4+3= 3/-1=-3

So one endpoijt is (-5,10)

8 0

3 years ago

the height of a triangle is 4 meters less than the base. if the area of the triangle is 6 m^2 what is the height of the triangle

inna [77]

Answer:

$2m$

Step-by-step explanation:

Alrighty let's do this.

We know that formula for the Area of a triangle is:

$A = \frac{1}{2}bh$

They give us the area as $6m^2$ , so let's include it in the equation.

$6 = \frac{1}{2}bh$

Now we reach a stage where we have 2 unknown variables! That means we can't solve it in its current state. So the idea you should have in cases like these where you have 2 or more unknown variables is, "Can I represent this one variable in terms of another variable?" In this case you can do exactly that. You can represent height in terms of length of the base. We are told the height of the triangle is 4 meters less than the base. That is telling us that $h = b-4$

So replace $h$ in the equation with $b-4$ .

You will now get:

$6 = \frac{1}{2}b(b-4)$

Now we can work towards solving. Let's get simplifying.

$12 = b(b-4)\\12 = b^2 - 4b\\$

bring everything to one side so we can make a quadratic and factor:

$0 = b^2 - 4b - 12\\0 = (b-6)(b+2)\\\\b = 6\\b\neq -2$

We get that $b=6$ .

Since we need the height of the triangle we'll need to call back on what h is. We found earlier that $h = b - 4$ , so to find h, we just sub in our b value into that.

$h = (6) - 4 = 2$

We find that $h=2$

7 0

2 years ago