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3 years ago

So my question is that i have -2(p+3)+4p but i dont know what to do

Mathematics

1 answer:

Mazyrski [523]3 years ago

4 0

Answer:

-2(p+3)+4p = 2p - 6

Step-by-step explanation:

Step 1: Distribute the -2 to the (p) and (3) which equals = -2p-6

Step 2: Combine Like Terms: -2p - 6 +4p --> 2p - 6

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Find the max/min value of f(x) = 2x2 + 3x - 5

Lelechka [254]

Answer:

The minimum value is $(-\frac{3}{4},-\frac{49}{8})$ or $(-0.75,-6.125)$

Step-by-step explanation:

we have

$f(x)=2x^{2}+3x-5$

This is the equation a vertical parabola open upward

The vertex represent a minimum

The general equation in vertex form is

$f(x)=a(x-h)^2+k$

where

(h,k) is the vertex

Convert the given function in vertex form

$f(x)=2x^{2}+3x-5$

Factor 2

$f(x)=2(x^{2}+\frac{3}{2}x)-5$

Complete the square

$f(x)=2(x^{2}+\frac{3}{2}x+\frac{9}{16})-5-\frac{9}{8}$

$f(x)=2(x^{2}+\frac{3}{2}x+\frac{9}{16})-\frac{49}{8}$

Rewrite as perfect squares

$f(x)=2(x+\frac{3}{4})^{2}-\frac{49}{8}$

The vertex is the point $(-\frac{3}{4},-\frac{49}{8})$

8 0

3 years ago

Find the area of the triangle. The area of the triangle is square units.

kicyunya [14]

A=40

Step-by-step explanation:

A= b×h÷2

A=10×8÷2

A=80÷2

A=40

5 0

3 years ago

Read 2 more answers

PLEASE HELP!!! SHOW WORK PLEASE!! LAST QUESTION!!!!! PLEASE

Allushta [10]

Answer:

133

Step-by-step explanation:

its an obtuse angle

5 0

3 years ago

What's the answer? please help

Mkey [24]

Answer:

it's 3.

Step-by-step explanation:

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3 years ago

Suppose that an account earns 5.9% interest and after 2 years the balance is $ 4472. Find the principal that was invested. Use

Marizza181 [45]

Answer:

The principle amount = $4000

Step-by-step explanation:

Formula:

Simple interest I = PTR/100

P - Principle amount

T - Number of years

R - Rate of interest

To find principle amount

Here , P = ?, T = 2 years, R = 5.9% and p + I = $4472

I = PTR/100

P + (P*2**5.9)/100 = 4472

P[1 + 11.8/100] = 4472

P[111.8/100] = 4472

P = (4472*100)/111.8 = 4000

Therefore the principle amount P = $4000

7 0

3 years ago

So my question is that i have -2(p+3)+4p but i dont know what to do​

So my question is that i have -2(p+3)+4p but i dont know what to do