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MArishka [77]
2 years ago
8

Which of the following statements is true regarding the difference between a Descriptive investigation and an Experimental inves

tigation? *
Mathematics
2 answers:
Rzqust [24]2 years ago
5 0

Answer:

free stu lol

Step-by-step explanation:

Margarita [4]2 years ago
3 0

Answer:

where are they

Step-by-step explanation:

wehre

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Please help ASAP give you 20 points and brainiest
GuDViN [60]

Answer:

Total charge= -25

Step-by-step explanation:

Given :

Charges of some ions

Aluminium    +3

Phosphate     -3

Chloride         -1

Silver               +1

To find total charge on 8 phosphate,7 chloride and 2 Aluminium atoms

Aluminium    +3 × 2 =+6

Phosphate     -3 × 8 = -24

Chloride         -1 × 7 = -7

total charge=

+6-24-7 =+6 -31

= -25

6 0
3 years ago
Find the slope of the line passing through the 2 points (-7,8), (-4,3
jeyben [28]

Answer:

5/-3

Step-by-step explanation:

Slope = (y2 - y1)/(x2 - x1)

m = (8 - 3)/(-7 + 4)

m = 5/-3

3 0
2 years ago
PLEASE HELP ASAP!<br> log base4(x^2+x+4)=2 solve for x
Ratling [72]

Step-by-step explanation:

multiply all the numbers by 4 I think except for the exponent

7 0
2 years ago
Read 2 more answers
A rectangle has length that is 5 less than 2 times the width. Write an expression for the area of the rectangle.
a_sh-v [17]

We are given a relationship between the sides of a rectangle, that is, the length of one of its sides is 5 less two times its width, and we are asked to find an expression for the area. Let's remember that the area of a rectangle is equal to the product of the length of its side by its width. Let "w" be the length of the rectangle and "L" its lenght, then the area is given by the following formula:

A=Lw

We can use the relationship given in the problem, that is, its length being five less two times its width, that is:

L=5-2w

Replacing in the formula for the area we get:

A=(5-2w)w

Now we use the distributive law:

A=5w-2w^2

7 0
11 months ago
Pairs of expressions are given. Select the pairs that are equivalent .
mafiozo [28]

Answer:

All the options are correct

4 0
3 years ago
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