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KATRIN_1 [288]
3 years ago
14

Why is earth known as diatomaceous Earth​???From biology

Mathematics
1 answer:
Svetllana [295]3 years ago
8 0

Answer:

Diatomaceous earth is made from the fossilized remains of tiny, aquatic organisms called diatoms. Their skeletons are made of a natural substance called silica. Over a long period of time, diatoms accumulated in the sediment of rivers, streams, lakes, and oceans. Today, silica deposits are mined from these areas.

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Yoooooo can somebody help me
elena55 [62]

The numeric value of the expression d² + 3a + 6 + a when a = 2 and d = 5 is of 39.

<h3>How to find the numeric value of an expression?</h3>


The numeric value of a function is found replacing each instance of a variable by the value of the input for which we want to find the numeric value.

For this problem, the expression is given by:

d² + 3a + 6 + a

We want to find the numeric value when a = 2 and d = 5, hence:

5² + 3(2) + 6 + 2 = 25 + 6 + 6 + 2 = 39.

More can be learned about the numeric values of a function at brainly.com/question/14556096

#SPJ1

6 0
2 years ago
Help meh plz I just need answer question in pic
Yanka [14]

Answer:

A

Step-by-step explanation:

At the vertex, the quadratic term in this notation must be zero, i.e., the (x-1)  part. This happens for x=1. So you can already rule out answers C and D.

Now fill in x=-2 in both remaining answers and see what happens.

For A: y = -2(-2 - 1)² + 3 = -15

For B: y = (-2 - 1)² + 3 = 12

That eliminates B and leaves A.

4 0
3 years ago
Find the value of the variable.<br><br> m&lt;BDK = 3x+ 4, m&lt;JDR = 5x - 10
slega [8]
∠BDK = ∠JDR
3x +4 = 5x -10
14 = 2x . . . . . . . . add 10-3x
7 = x . . . . . . . . . . divide by 2
5 0
3 years ago
In the ordered pair (4,3) Does the 3​ indicate how far to travel on the x​ -axis from the origin.
Sever21 [200]

Answer:

No

Step-by-step explanation:

4 indicates how far to travel on the x-axis while 3 indicates how far to travel in the y-axis

8 0
3 years ago
6th grade work !! pls help
klio [65]

Answer:

2,1

Step-by-step explanation:

8 0
3 years ago
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