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3 years ago

Solve x2 – 8x + 15 < 0. Select the critical points for the inequality shown.

Mathematics

1 answer:

Liono4ka [1.6K]3 years ago

5 0

Answer:

x> 17/8

Step-by-step explanation:

add the numbers

17-8x<0

move the constant to the right-hand side and change its sign

-8x<-17

Divide both side of the inequality by -8 and flip the inequality sign

x>17/8

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What is the slope and y intercept of 6y = -18-12x

kirza4 [7]

-18/6= -3. -3 is the y intercept of the equation and -12/6=-2. -2 is the slope

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4 years ago

Rochelle deposits $5,000 in an IRA. What will be the value of her investment in 25 years if the investment is earning 8% per yea

Iteru [2.4K]

Answer:

$\$36,945.28$

Step-by-step explanation:

we know that

The formula to calculate continuously compounded interest is equal to

$A=P(e)^{rt}$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest in decimal

t is Number of Time Periods

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we have

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$A=5,000(e)^{2}$

$A=\$36,945.28$

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4 years ago

50 points! name the postulate or theorem .

Agata [3.3K]

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the HL theorem is the answer

8 0

4 years ago

Read 2 more answers

Find the area. Simplify your answer.

Shalnov [3]

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Answer:

x^2 +8x +12

Step-by-step explanation:

The area is the product of length and width. The product can be simplified using the distributive property.

A = LW

A = (x +6)(x +2) = x(x +2) +6(x +2)

A = x^2 +2x +6x +12

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6 0

3 years ago

Read 2 more answers

For the past three months Grace used her cell phone for 43 minutes 62 minutes and 57 minutes how many minutes would you have to

RSB [31]

Answer:

Grace should use her phone for 58 minutes to maintain an average of 55 minutes.

Step-by-step explanation:

Usage of first month = 43 minutes

Second month = 62 minutes

Third Minutes = 57 minutes

Let, the usage of fourth month = k minutes

Mean of the data = 5 minutes

Now, Average of a Data = $\frac{\textrm{Sumof observations}}{\textrm{Total number of observations}}$

⇒ $55 = \frac{43 + 62 + 57 + k}{4}$

or, 55 x 4 = 162 + k

⇒ 220 - 162 = k

or, k = 58 minutes

So, Grace should use her phone for 58 minutes to maintain an average of 55 minutes.

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3 years ago