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3 years ago

I really need help with this

Mathematics

1 answer:

ValentinkaMS [17]3 years ago

6 0

Answer:

y = -2x + 4

Step-by-step explanation:

The line intercepts at the y axis at 4. And you go to units down then one unit right to get to the next point.

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How to write the expression in standard form 4(2a)+7(-4b)+(3×c×5

Alex787 [66]

Answer:

8a + -28b + 15 x c

Step-by-step explanation:

PogChamp

8 0

3 years ago

Simplify. Your answer should only contain positive exponents.

Marina86 [1]

1/6^b17 i hopes this is right

8 0

3 years ago

Jamel has a cell phone that has unlimited minutes and texts for $45 a month, but he has to pay $5 for each gigabyte of data he u

balandron [24]

Answer:

I think it's 4 gigabytes

Step-by-step explanation:

He only wants to pay 65$ and he already spends 45$ on his phone already. So you only have 20 dollars until his grand totaly of 65$ so 5x4= 20 so he can only use 4 gigabytes. Does that make sense? Hope I helped eheh

8 0

3 years ago

Randy bought a zero coupon bond and a TIPS 5 years ago for $2,500 each. Both had 10 years to maturity. The TIPS's coupon was 2%

iren2701 [21]

Zero coupon bonds do not earn interest. It is usually sold at a big discount and its redeemable value if beyond its face value will only be redeemed once it reaches maturity.

TIPS stands for Treasury Inflation Protected Securities.

TIPS:
2,500 x 2% x 5 years = 250
2,500 + 250 = 2,750

Zero coupon bond after 5 years: 2,500

Maximum real value of his bonds if he sells them today.

2,750 + 2,500 = 5,250

5 0

4 years ago

Many doctors rely on the use of intravenous medication administration in order to achieve an immediate response of a particular

rewona [7]

The domain of the function is 0 ≤ t ≤ 3 and the greatest concentration of the medication is 2mg/L

<h3>The domain of the function</h3>

The equation of the function is given as:

$C(t) = \frac{-18t^2 + 54t}{t^2 + 7t + 10}$

Time can be 0 or greater but cannot be negative.

So, the domain of the function includes t ≥ 0

Set the function to 0 to determine the maximum value of t.

$\frac{-18t^2 + 54t}{t^2 + 7t + 10} = 0$

Cross multiply

$-18t^2 + 54t = 0$

Factor out -18t

-18t(t - 3) = 0

Divide both sides by -18t

t - 3 = 0

Add 3 to both sides

t = 3

This means that the maximum value of t is 3

Hence, the domain of the function is 0 ≤ t ≤ 3

<h3>The greatest concentration of the medication</h3>

From the graph of the function (see attachment), we have the maximum value to be;

C(t) = 2

Hence, the greatest concentration of the medication is 2mg/L

I really need help with this​

I really need help with this