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3 years ago

Need help with this equation having troubles 4(20 + 12) ÷ (4 - 3)

2 answers:

6 0

Try using PEMDAS
Paranthesis
Exponents
Multiplication
Division
Addition
Subtraction
First do P: 20 +12 = 32
4 - 3 = 1
Now the new equation is 4(32) <span>÷ 1
Since there are no exponents, we go straight to the multiplication:
4 x 32 = 128
Now we have 128 </span><span>÷ 1 which equals 128
So your answer is 128 :D

</span>

vovikov84 [41]3 years ago

3 0

It's going to be 128 I hope it's right

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1 point<br> 5) Solve by using the quadratic formula 8x² = 15 - 14x

kykrilka [37]

<h3>I'll teach you how to solve 8x² = 15 - 14x</h3>

----------------------------------------------------

8x² = 15 - 14x

Add 14x to both sides:

8x^2 +14x =15-14x+14x

Simplify:

8x^2 +14x =15

Subtract 15 from both sides:

8x^2+14x-15 = 15-15

SImplify:

8x^2+14x-15 = 0

Solve with the quadratic formula:

x= $\frac{-14+ \sqrt{14^2-4*8(1-15)} }{2*8}$ = 3/4

x= $\frac{-14+ \sqrt{14^2-4*8(1-15)} }{2*8}$ = -5/2

The solutions to the quadratic formula are:

x= 3/4, x=-5/2

Your Answer Is x= 3/4, x=-5/2

plz mark me as brainliest :)

6 0

2 years ago

For questions 8 – 14, use the following functions:

pogonyaev

we are given

$f(x)=5$

$g(x)=\sqrt{x+2}$

(8)

$(f+g)(x)=f(x)+g(x)$

we can plug it

$(f+g)(x)=5+\sqrt{x+2}$

(9)

$(f-g)(x)=f(x)-g(x)$

we can plug it

$(f-g)(x)=5-\sqrt{x+2}$

(10)

$(f*g)(x)=f(x)*g(x)$

we can plug it

$(f*g)(x)=5\sqrt{x+2}$

(11)

$(\frac{f}{g} )(x)=\frac{f(x)}{g(x)}$

we can plug it

$(\frac{f}{g} )(x)=\frac{5}{\sqrt{x+2}}$

(12)

$(\frac{g}{f} )(x)=\frac{g(x)}{f(x)}$

we can plug it

$(\frac{g}{f} )(x)=\frac{\sqrt{x+2}}{5}$

(13)

$(fog)(x)=f(g(x))$

$f(x)=5$

we can replace g(x)

we get

$(fog)(x)=5$

(14)

$(gof)(x)=g(f(x))$

$f(x)=5$

we can replace f(x)

$(gof)(x)=\sqrt{f(x)+2}$

we get

$(gof)(x)=\sqrt{5+2}$

$(gof)(x)=\sqrt{7}$

8 0

3 years ago

◆ Rewrite the fractions as sixths. 1/2 + 1/3= _/6 + _/6

KIM [24]

Answer: 1/2 + 1/3 = 3/6 + 2/6

Step-by-step explanation: you multiply 1/2 by 3/3 (1 x 3 and 2 x 3), which gives you 3/6, and then multiply 1/3 by 2/2 (1 x 2 and 3 x 2), which gives you 2/6.

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Andreas93 [3]

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Step-by-step explanation:

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Step-by-step explanation:

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