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Fynjy0 [20]
3 years ago
14

-48=-5y+8-y Enter only the value of the variable.

Mathematics
2 answers:
Eddi Din [679]3 years ago
4 0
<h3>y = 28 / 3</h3><h3 />

-48=-5y+8-y

First make y positive by * -1.

48 = 5y - 8 + y

5y + y - 8 = 48

6y - 8 = 48

ax = b formula - Take the - 8 to the other side.

6y - 8 + 8 = 48 + 8

6y = 56

x = b formula

Divide by 6:

6y / 6 = 56 / 6

<h3>y = 28 / 3</h3>

Check the answer by substituting it into the original equation:

-48 =-59 (28 / 3) + 8 - (28 / 3)

Lunna [17]3 years ago
3 0
-5( y) +8 -y


y is 14
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What is the factorization of the trinomial below?x3 - 12x2 + 35x?
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X³ - 12x² + 35x

x(x² - 12x + 35)

x(x-5)(x-7)
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3 years ago
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The half-life of Radium-226 is 1590 years. If a sample contains 200 mg, how many mg will remain after 1000 years?
adell [148]

Answer: 129.33 g

Step-by-step explanation:

$$Let $p=A \cdot e^{n t}$ \\$(p=$ present amount, $A=$ initial amount, $n=$ decay rate, $t=$ time)

\begin{aligned}&\Rightarrow \text { Given } p=\frac{A}{2} \ a t  \ t=1590 \\&\Rightarrow \frac{1}{2}=e^{1590n} \Rightarrow n=\frac{\ln (1 / 2)}{1590}=-0.00043594162\end{aligned}

$$If $A=200 \mathrm{mg}$ and $t=1000$ then,$$\begin{aligned}P &=200 e^{\left(\frac{\ln \left(1/2\right)}{1590}\right) \cdot 1000} \text \\\\&=129.33 \text { grams}\end{aligned}$$

3 0
2 years ago
Solve quadratic equation x²-8x-1=0 by formula method​
Alex_Xolod [135]

Answer:

x²-8x-1=0

comparing above equation with ax²+bx+c=0

a=1

b=-8

c=-1

x=

x =  \frac{ - b +  -  \sqrt{ {b}^{2} - 4ac } }{2a}

=(--8+-√(64-4×1×-1)/2×1

=8+-√(64+4)/2

taking positive

x=(8+√68)/2=2(4+√17)/2=4+√17

taking negative

x=(8-√68)/2=2(4-√17)/2=4-√17

6 0
2 years ago
Read 2 more answers
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