I need to know how to solve this equations

Mathematics

1 answer:

Vlad [161]3 years ago

3 0

The answer is x=12 hope it helps

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Rounding to nearest thousand gives 76,000 mg of chlorine

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3 years ago

The graph shows the function f(x)=3^x

tangare [24]

The answer is D.
You have to make the whole numbers equal to then solve for the exponents:
F(x) means y, therefore, y is 9.
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Then, 3^2 = 3^x.
Then solve for the exponents,
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3 years ago

Is 5(a + b) and (a + b)5 equal?

Slav-nsk [51]

Answer:

yes totally

Step-by-step explanation:

5a+5b=5a+5b

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3 years ago

Read 2 more answers

What multiplies to 16 and adds to negative 12

Romashka-Z-Leto [24]

Factor 16 and see the - factor pairs and add them, see which add to -12
-1-16=-17 nope
-2-8=-10 nope
-4-4=-8
hmm

we will solve with math
xy=16
x+y=-12
minus x both sides
y=-12-x
sub for y in other equation
x(-12-x)=16
-12x-x^2=16
add 12x+x^2 both sides
0=x^2+12x+16
use quadratic formula
if you have
ax^2+bx+c=0
x= $\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}$

0=x^2+12x+16
a=1
b=12
c=16

x= $\frac{-12+/- \sqrt{12^{2}-4(1)(16) }}{2(1)}$
x= $\frac{-12+/- \sqrt{144-64 }}{2}$
x= $\frac{-12+/- \sqrt{80}}{2}$
x= $\frac{-12+/- 4\sqrt{5}}{2}$
x= $\frac{-6+/- 2\sqrt{5}$
x= $\frac{-6+ 2\sqrt{5}$ or $\frac{-6- 2\sqrt{5}$

aprox
x=-1.52786 or -10.4721

those are the numbers

the numbes are -1.52786 or -10.4721

6 0

3 years ago

Read 2 more answers

Complete the table of values for y=3-2x

Irina18 [472]

Step-by-step explanation:

Here is a table.

6 0

3 years ago