3 years ago

I need help with question 2-4

Mathematics

1 answer:

Tresset [83]3 years ago

5 0

Question 2 is 250 idk about 4

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The cookies in sarah's cookie jar decrease by 5 cookies every 2 days. which rational number does not describes the scenario?

babymother [125]

A is the only one that ones not decrease using a negative sign

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3 years ago

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Three friends split the cost of pizza and a salad. The pizza costs $15 and the salad costs $6.

horrorfan [7]

Answer:

Step-by-step explanation:

15+6=21 ÷3 = $7 per friend

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3 years ago

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Simplify (8x^3-5x-1)-(7x^2+6x-10)

irakobra [83]

Answer:

8x^3-7x^2-11x+9

Step-by-step explanation:

(8x^3-5x-1)-(7x^2+6x-10)

remove unnesasary ( )

8x^3-5x-1 -(7x^2+6x-10)

the distribute

8x^3-5x-1 -7x^2-6x+10

combine like terms

8x^3-11x+9-7x^2

use the communative property to reorder the equation

8x^3-7x^2-11x+9

4 0

3 years ago

Please write the explanation thanks

DedPeter [7]

$\frac{7}{12}\cdot30=\frac{7}{2}\cdot5=\frac{35}{2}=\$17.5\leftarrow \hbox{ Joseph}\\
30\%\cdot30=0,3\cdot30=\$9\leftarrow \hbox{ Maria}\\
30-17.5-9=\$3.5 \leftarrow \hbox{ Rebecca}$

3 0

3 years ago

Determine if the lim f(x) exists using the graph below.. If it does, find its value. If it does not,x 1explain why

Leno4ka [110]

The limit of a function f at a point a exists if:

$\lim_{x\to a^-}f(x)=\lim_{x\to a^+}f(x)$ $\begin{gathered} \text{ From the given image, the value of the left limit of f at x=1 } \\ \lim_{x\to a^-}f(x)\lt1 \end{gathered}$

Also,

$\begin{gathered} \text{ From the given image, the value of the right limit of f at x=1 } \\ \lim_{x\to a^+}f(x)\gt1 \end{gathered}$

Therefore,

$\lim_{x\to1^-}f(x)\lim_{x\to1^+}f(x)$

Hence, the limit does not exist

8 0

1 year ago