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3 years ago

Firsts get brainiest llllllllllllll image below vvvvvvv

SAT

1 answer:

frutty [35]3 years ago

8 0

Answer:

-0.8x + 4.8y + 16

General Formulas and Concepts:

<u>Pre-Algebra</u>

Distributive Property

<u>Algebra I</u>

Combining Like Terms

Explanation:

<u>Step 1: Define Expression</u>

4(0.5x + 2.5y - 0.7x - 1.3y + 4)

<u>Step 2: Simplify</u>

Combine like terms (x): 4(-0.2x + 2.5y - 1.3y + 4)
Combine like terms (y): 4(-0.2x + 1.2y + 4)
Distribute 4: -0.8x + 4.8y + 16

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Trna molecules deliver amino acids to ribosomes where the amino acid next.

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A trna with the complementary anticodon is attracted to the ribosome and binds to this codon. The trna carries the next amino acid in the polypeptide chain

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3 years ago

k and m are constants. the function f(x)= x2 - kx +3 intersects the function g(x) = -kx +m at the point (-1,6). what is the valu

SOVA2 [1]

Answer:

k=2 m=5

Explanation:

At the point -1,6 we know that both equations are equal to 6 so we solve x^2- kx+3=6 and we get that k=2, after this we plug k into the other equation and set it equal to 6 again and solve for m

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3 years ago

Read the passage from when birds get flu and cows go mad! by john diconsiglio. Perhaps the best news about mad cow is that peopl

Luda [366]

Answer:

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4 0

3 years ago

Read 2 more answers

Find the lateral surface area of the rectangular prism in centimeters. A) 96 cm2 b) 108 cm2 c) 126 cm2 d) 142 cm2

yanalaym [24]

Option C) 120cm² is the correct answer.

Hence, the lateral surface area of the rectangular prism in 120cm².

This question is incomplete, the complete question is;

Find the lateral surface area of the rectangular prism in centimeters.

L=4, W=3, H=9

A) 96 cm2 b) 108 cm2 c) 126 cm2 d) 142 cm2.

<h3>Rectangular prism</h3>

A rectangular prism or Cuboid is simply a three dimensional solid shape with six faces that are rectangles.

The lateral surface area of the rectangular prism is the perimeter of the base multiply by the height of the prism. It is expressed as:

$LSA = 2 ( l + w ) h$

To determine the lateral surface area of the rectangular prism, we substitute our given values into the above expression.

$L.S.A = 2(l+w)h\\\\L.S.A = 2( 4cm + 3cm )9cm\\\\L.S.A = 2( 7cm)9cm\\\\L.S.A = 126cm^2$

Option C) 120cm² is the correct answer.

Hence, the lateral surface area of the rectangular prism in 120cm².

Learn more about lateral surface area: brainly.com/question/14001755

6 0

2 years ago

Consider the following three solutions: (i) 0. 10 m solution of a weak monoprotic acid (ii) 0. 10 m solution of strong monoproti

tresset_1 [31]

Answer:

Option B

Explanation:

We have the tree solutions here:

A: weak monoprotic acid HA

B: Strong monoprotic acid HA'

C: weak diprotic acid H₂A

In order to explain this, let's discart the options one by one.

C and D cannot be the correct choice. This is because the pH is an expression that is determined by the following expression:

pH = -log[H₃O⁺]

In order to be the same value for all the solutions, the concentration of hydronium should be the same for all. This will be correct if all solutions were monoprotic and strong. However this is not the case.

Solution A and C are weak acids, so this means that they have dissociation constant Ka (In the case of C, it has two Ka values because it's diprotic). So, when these solutions reach the equivalence point or half the equivalence point, the concentration of the acid do not dissociate completely in solution, instead it do this:

HA + H₂O -------> A⁻ + H₃O⁺ Ka

0.1 0 0

0.1-x x x

[H₃O⁺] = x

Same thing happen with C, but we can see that the concentration is not the same as the innitial concentration.

Solution B is a strong acid, so it will dissociate completely in solution, so concentration of hydronium will be the same of the initial acid, and therefore the pH cannot be the same in the three solutions.

Option A cannot be either because, we have a diprotic solution, this means this acid requires two equivalence points to reach it's final, so, it takes more time and volume to reach the end point. Therefore, it's not the correct option.

Option B is the correct one, because regardless that we have a weak or a strong acid, or if it's diprotic or triprotic, the three of them have the same concentration of acid, and to reach the first equivalence point (the only point for A and B) will be the same for solution C. Therefore, this is the only thing the three solutions have in common.

5 0

2 years ago