3 years ago

HELP SCIENCE! I PUT MATH N DIDNT MEAN TO

Mathematics

2 answers:

Ganezh [65]3 years ago

6 0

B) 4Na + O₂ → 2Na₂O
b) H₂ + Cl₂ ---> 2HCi

vivado [14]3 years ago

5 0

the first question b is balanced
the second question b is balanced but it is 2HCl not 2HCi ;-)

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Help please my moms going to kill me if I don’t get this right

iragen [17]

Answer:

$x=-\frac{41}{6}$

Step-by-step explanation:

Pay attention to the two tick marks. This indicates that those sides are congruent to each other and so will the angles on the bottom and top. Therefore, we can set up the equation $137+2(-3x+1)=180$ and solve for x:

$137+2(-3x+1)=180$

$137+(-6x+2)=180$

$137-6x+2=180$

$139-6x=180$

$-6x=41$

$x=-\frac{41}{6}$

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2 years ago

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Lilit [14]

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7 0

3 years ago

a rectangle prism has a volume of 3x^2 + 18x+ 24. its base has a length of x + 2 and width of 3, what expression represents the

OlgaM077 [116]

$\bf \textit{volume of a rectangular prism}\\\\
V=lwh\qquad 
\begin{cases}
l=x+2\\
w=3\\
V=3x^2 + 18x+ 24
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\\\\\\
\cfrac{3x^2 + 18x+ 24}{3(x+2)}=h\implies \cfrac{\underline{3}(x^2 + 6x+ 8)}{\underline{3}(x+2)}=h
\\\\\\
\cfrac{(x+4)\underline{(x+2)}}{\underline{(x+2)}}=h\implies x+4=h$