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3 years ago

40 points if I got these right.

Mathematics

1 answer:

OleMash [197]3 years ago

6 0

x- the number

9x - 4

Four less (-4) than nine times number (9x)

x/4 + 9

Nine more (+9) than one-fourth of number (1/4 x = x/4)

4 - 9x

Four (4) decreased (-) by the product of a number and nine

4x - 9

Nine less (-9) than a four times number (4x)

x/9 + 4

The sum (+) of one-nineth a number (1/9 x = x/9) and four (4)

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Need help anything helps thanks

yKpoI14uk [10]

A binomial squared is written like

$x^2+2ax+a^2$

So, we have $2a=6 \iff a=3$

So, we want to complete the square $(x+3)^2 = x^2+6x+9$

We can add and subtract 9 to write

$x^2+6x = x^2+6x+(9-9) = (x^2+6x+9)-9 = (x+3)^2-9$

5 0

3 years ago

Click on the solution set below until the correct one is displayed

Effectus [21]

What solution set below

7 0

3 years ago

Find the difference: -3/5 - (-5/9)

Stella [2.4K]

Answer:

-2/45

Step-by-step explanation:

-3/5 - (-5/9)

Subtracting a negative is like adding

-3/5 + 5/9

Get a common denominator of 45

-3/5*9/9 + 5/9 *5/5

-27/45 + 25/45

-2/45

6 0

3 years ago

Read 2 more answers

EXPRESS in power notation

lora16 [44]

Answer:

Solution given:

-1/8= $\frac{-1³}{2³}=(\frac{-1³}{2³}=-1³*2^{-3}=-2^{-3}$

2. -64/27

= $\frac{-4^{3}}{3³}=\frac{-4³}{3³}=(\frac{-4}{3})^{3}$

Express in rational number

1. (-3/2)=-3/2*2/2=-(3*2)*(2/2)=-6/4

2. (1/5)=1/5*5/5=5/25

and

(-4/3)³(2/5)-⁴ ÷ (7/4)

(-4³/3³)(2-⁴/5-⁴)÷7/4

(-64/27)(5⁴/2⁴)÷7/4

(-64/27)(625/16)÷7/4

(-64*625/(27*16))*4/7

-2500/27*4/7

-10000/169

(-100/13)²

7 0

3 years ago

Can someone tell me what is Q1 and Q3 for 4,5,7,8,9,10,12,12,14,15,18,20 please help me

lesantik [10]

Answer: q3 is 14.5, q1 is 7.5

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers