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3 years ago

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Brianna is getting materials for a chemistry experiment. Her teacher gives her a container that has 0.55 liter of liquid in it.

Brianna needs to use 0.2 of this liquid for the experiment.
How much liquid will Brianna use?

1 answer:

Mnenie [13.5K]3 years ago

4 0

O.11 L is the answer to ur question

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A farmer planted corn in a square field. One side of the field measures 32 yards.What is the area of the cornfield

Sveta_85 [38]

Answer:

128 my answer needs to be long so im just gonna span a little

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3 years ago

I need desperate help PLEASE!!!

koban [17]

Answer:

OPTION B

OPTION D

Step-by-step explanation:

An element in the domain should be mapped to exactly one element on the co-domain. Also, every element in the domain should be mapped to an element in the co-domain.

These two conditions are satisfied to call a relation, a function.

Two different elements in the domain can be mapped to the same element in the co-domain. But the same element in the domain cannot be mapped to two different elements in the co-domain.

A) {(3,7), (3,6), (5,4), (4,7)}

Here, the element '3' in the domain is mapped to two elements 7 and 6. So, it is not a function.

B) {(1,5), (3,5), (4, 6), (6,4)}

This is a function because all the elements in the domain have a unique image in the co-domain. So, this is a function.

C) {(2,3), (4,2), (4,6), (6,4)}

Here, the element '4' in the domain is again mapped to two different elements. Hence, it cannot be a function.

D) {(0,4), (3,2), (4,2), (6,5)}

This is again a function. Because the domain is mapped to unique elements. So, this is a function.

4 0

3 years ago

How to factorise:<br><br> 1) 9t²w - 3.<br><br> 2) 4(x - 5)² + 3 (x - 5)

Nady [450]

Answer:

1)=3(3t^2w-1)

2)=(4x-17)(x-5)

Step-by-step explanation:

1) =Factor out 3

2) =in order to factor an integer we need to repeatedly divide it by the ascending sequence of primes (2,3,5)

number of times each prime divides the original integer becomes it's exponent in the final result. for this equation prime number 2 to the power of 2 =4

2^2(x - 5)² + 3 (x - 5)

we need to factor GCF ( greatest common factor)

The resulting term is a product of GCF and original expression divided by GCF. in equation the GCF = x-5

(x-5)(2^2(x-5)^2/x-5 + 3(x-5)/x-5 )

Need to reduce fraction to lowest terms. Done by dividing out factors that appear both in numerator and denominator. Common factor in equation is x-5

(x-5)(2^2(x-5)^2-1+3)

need to evaluate a power by multiplying the base by itself as many times as the exponent indicates. in equation base 2 will be multiplied by itself twice.

(x-5)(4(x-5)+3)

Expand this term by multiplying a term and an expression. Following product A(B+C)=AB+AC

in equation the resulting expression will consist of 2 terms:

first term is a product of 4 and X

Second term is a product of 4 and -5

(x-5)((4x-4*5)+3)

Numerical factors in this term have been multiplied

(x-5)((4x-20)+3)

We need to get rid of expression parentheses. If there is a negative sign in front of it , each term within expression changes sign. Otherwise expression remains unchanged. In equation there are no negative expression s.

(x-5)(4x-20+3)

Simplify = (4x-17)(x-5) or (x-5)(4x-17)

6 0

3 years ago

Read 2 more answers

X + y - 6 = 0<br> x - y = 0

hram777 [196]

3 + 3 - 6 = 0
3 - 3 = 0

5 0

3 years ago

Read 2 more answers

The width of a rectanle is 8n - 8.5 feet and the lenght is 8.5n + 10 feet. Find the perimeter of the rectangle

Wittaler [7]

Answer:

The perimeter of a rectangle is:

P = 33n+3

Step-by-step explanation:

Given

The width of a rectangle w = 8n - 8.5 feet

The length of a rectangle l = 8.5n + 10 feet

To determine

The perimeter of a rectangle = P = ?

The perimeter of a rectangle can be determined using the formula

$P = 2(l+w)$

substitute l = 8.5n + 10 and w = 8n - 8.5

$P=2\left(8.5n+10+8n-8.5\right)$

$=2\left(16.5n+10-8.5\right)$

$=2\left(16.5n+1.5\right)$

$=33n+3$

Therefore, the perimeter of a rectangle is:

P = 33n+3

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3 years ago