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Dmitry [639]
2 years ago
9

132° 78° 2x° solve for x

Mathematics
1 answer:
Assoli18 [71]2 years ago
4 0

Probably angles of a triangle

\\ \sf\longmapsto 2x+78+132=180

\\ \sf\longmapsto 2x+210=180

\\ \sf\longmapsto 2x=|-30|=30

\\ \sf\longmapsto x=15°

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Natalie walked 3/5 mile in 1/2 hour . how fast did she walk in miles per hour
Nutka1998 [239]

Answer:

(6/5) mph

Step-by-step explanation:

5 0
3 years ago
between 1995 and 2006, the population of samburg, usa(in thousands) can be modeled by f(x) = 0.35x(squared) - 2.1x+15.8 where x=
Juli2301 [7.4K]
\bf f(x)=0.35x^2-2.1x+15.8\qquad 
\begin{cases}
x=\textit{year since 1995}\\
f(x)=\textit{population amount}
\end{cases}

the equation is a quadratic one, and it has a positive coefficient on the leading term, meaning, is opening upwards, so it has a "burrow" for the vertex.

the minimum or lowest point for a quadratic opening upwards is, well, the vertex point :),   the "x" value is the year, the "y" or f(x) value is the population, we're asked for the year, or the x-coordinate of the vertex

well   \bf \begin{array}{llll}
f(x)=&0.35x^2&-2.1x&+15.8\\
&\quad \uparrow &\quad \uparrow&\uparrow \\
&\quad  a&\quad  b &c
\end{array}
\\\\

\\\\
\qquad  \textit{vertex of a parabola}\\ \quad \\
\qquad 

\left(\boxed{-\cfrac{{{ b}}}{2{{ a}}}}\quad ,\quad  {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)
5 0
3 years ago
Which of the following radical expressions has an absolute value symbol in its simplified form?
umka21 [38]

Answer:

The answer is option b, its absolute value in simplified form gives

6\sqrt{2x^3} j

Step-by-step explanation:

Which of the following radical expressions has an absolute value symbol in its simplified form?

Answer option

6√64x^6

3VWjZbdGugPfWdqwB2+ZNNUbUB29afvQFuZASCHvF-8x^3

5√32x^5

4VWjZbdGugPfWdqwB2+ZNNUbUB29afvQFuZASCHvF16x

6√64x^6

to solve this

48x^3

b. 3√-8x^3

3*2√-2x^3

6√2x^3*√-1

6√2x^3j

which is a complex notation

5√32x^5

5*4√2x^5

20√2x^5

4√16x

4*4√x

16√x

6 0
4 years ago
Monique worked for 4 hours and earned $39.79. How much would she earn if she worked for 6 hours? I HELP WITH IT RNN​
loris [4]

Answer:

x=$59.69

Step-by-step explanation:

We can create a proportion to find the answer.

Thus, we get 4 hr/$39.79=6 hr/$x.

Cross multiplying gives us 4x=238.74, and solving for x gives us $59.685.

We can round to $59.69.

5 0
3 years ago
Nient and Units
Shtirlitz [24]
The answer is most likely C. Cubic meters.
5 0
3 years ago
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