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enyata [817]
4 years ago
15

ANSWER QUICK AND EXPLAIN HOW TO SOLVE

Mathematics
1 answer:
blsea [12.9K]4 years ago
6 0
\cfrac{a}{sinA}= \cfrac{b}{sinB} \ \ \to \\ sinB= \cfrac{b*sinA}{a} = \cfrac{14*sin35^o}{12}= 0.6692 \ \ \to \ m \angle B=42^o \\ \\ \\ m \angle C=180- m \angle A- m \angle B=180-35-42=103^o \\ \\ \\ \cfrac{a}{sinA}= \cfrac{c}{sinC} \ \ \to \ c= \cfrac{a*sinC}{sinA}= \cfrac{12*sin103^o}{sin35^o} \approx 20.4
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3 years ago
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Is it true or false! I need help fast thanks!
ladessa [460]

The answer is True.

On differentiating using product rule,

\mathsf {\frac{d}{dx}[xe^{x}] = x(e^{x})+e^{x}(1)}

\mathsf {\frac{d}{dx}[xe^{x}] = e^{x}(x + 1)}

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8 0
2 years ago
Using the order of operations, what should be done first when evaluating this expression?
Nastasia [14]

Answer:

-\frac{16}{17}\\-0.94117

Step-by-step explanation:

\frac{-\frac{1}{2}}{\frac{2\left(9+3\right)-4-3}{4\left(8\right)}}\\\mathrm{Remove\:parentheses}:\quad \left(a\right)=a\\=\frac{-\frac{1}{2}}{\frac{2\left(9+3\right)-4-3}{4\cdot \:8}}\\\frac{2\left(9+3\right)-4-3}{4\cdot \:8}=\frac{17}{32}\\\frac{2\left(9+3\right)-4-3}{4\cdot \:8}\\2\left(9+3\right)-4-3=17\\2\left(9+3\right)-4-3\\2\left(9+3\right)=24\\2\left(9+3\right)\\\mathrm{Add\:the\:numbers:}\:9+3=12\\=2\cdot \:12\\\mathrm{Multiply\:the\:numbers:}\:2\cdot \:12=24\\=24-4-3

\mathrm{Subtract\:the\:numbers:}\:24-4-3=17\\=\frac{17}{4\cdot \:8}\\\mathrm{Multiply\:the\:numbers:}\:4\cdot \:8=32\\=\frac{17}{32}\\\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{-a}{b}=-\frac{a}{b}\\=-\frac{\frac{1}{2}}{\frac{17}{32}}\\\mathrm{Divide\:fractions}:\quad \frac{\frac{a}{b}}{\frac{c}{d}}=\frac{a\cdot \:d}{b\cdot \:c}\\=-\frac{1\cdot \:32}{2\cdot \:17}\\Refine\\=-\frac{32}{2\cdot \:17}\\\mathrm{Multiply\:the\:numbers:}\:2\cdot \:17=34\\=-\frac{32}{34}

\mathrm{Cancel\:the\:common\:factor:}\:2\\=-\frac{16}{17}\\\mathrm{Decimal:\quad }\:-0.94117

3 0
3 years ago
Please help on both questions. I would appreciate it.
ohaa [14]

Answer:

first one is 4.5 second one is 45

Step-by-step explanation:

8 0
3 years ago
I need help, I don't get this.
salantis [7]

Answer:11 question

Y=5

X=3

Perimeter =16cm

Step-by-step explanation:

2x-4= 2*3=6-4=2

Y-3 = 5-3=2

3x-5=3*3=9-5=4

Y-1=5-1=4

2*(3+5)

=2*8

=16

3 0
2 years ago
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