9 months ago

PLEASE HELP ILL GIVE BRAINLIEST!!!!

Mathematics

1 answer:

tangare [24]9 months ago

4 0

What you need is the slope of the graph which is given as the change in dollars / change in pounds

16-0

____

4-0

= 4$/lb (B)

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9. John bought a used truck for $4,500. He made an agreement with the dealer to put $1,500 down and make payments of $350 for th

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Answer:

11.111111111111111...%

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3 years ago

Evaluate the determinant for the following matrix: [- 5 1 1 4] A. –21 B. 19 C. –17 D. –24

mariarad [96]

Answer:

-21

Step-by-step explanation:

I assume this is a 2 by 2 matrix.

$\begin{bmatrix} -5 & 1\\1 & 4 \end{bmatrix}$

determinant = -5 * 4 - 1 * 1 = -20 - 1 = -21

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3 years ago

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One type of firework splits 5 times after it is fired into the air. The number of new bursts after each split can be modeled by

kherson [118]

Probably 5 because it only states 1 firework

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3 years ago

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Expand the following expression:<br> (2x-1)(x+4)

sesenic [268]

Answer:

2x² +7x - 4

Step-by-step explanation:

(2x-1)(x+4)

2x² + 8x - x - 4

simplify:

2x² +7x - 4

8 0

2 years ago

Mrs. Benson has graded 46 math assignments but has 80% of the assignments left to grade. Mrs. Benson has how many math assignmen

timofeeve [1]

Mrs. Benson has 184 math assignments left to grade.

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

Here we have , Mrs. Benson has graded 46 math assignments but has 80% of the assignments left to grade.We need to find Mrs. Benson has how many math assignments left to grade. Let's find out:

Let total Number of math assignments be x , So According to question 46 math assignments are graded & 80% are left i.e.

⇒ $x = 46+\frac{80x}{100}$

⇒ $x -\frac{80x}{100}= 46$

⇒ $\frac{100x-80x}{100}= 46$

⇒ $\frac{20x}{100}= 46$

⇒ $\frac{x}{5}= 46$

⇒ $x=230$

Now , Assignments left to grade is :

⇒ $230-46$

⇒ $184$

Therefore , Mrs. Benson has 184 math assignments left to grade.

4 0

3 years ago