All categories

3 years ago

Evaluate the expression if a = 4, b = 9, and c = 1.

Mathematics

2 answers:

nexus9112 [7]3 years ago

7 0

Answer:

-9

Step-by-step explanation:

Substitute the values into the expression.

= 3(9)÷(1)1-4

evaluate/simplify each part first.

= 27÷1-4

= 27÷(-3)

simplify (positive divided by a negative is a negative)

= -9

uranmaximum [27]3 years ago

3 0

Answer:

Given - a = 4

b = 9

c = 1

To find - Value of equation

Solution -

3b ÷ c^1 - a

Putting the value of a,b and c in the equation

3(9) ÷ (1)^1 - 4

27 ÷ 1 - 4

27 ÷ (-3)

27 × (1 /(-3)

27/(-3)

(-9)

You might be interested in

Given cos theta = - 2/5 and sin theta < 0, find the six trigonometric values. I need help with this

Lena [83]

Answer:

$\sin\,\theta =-\frac{\sqrt{21} }{5}$

$\tan\,\theta =\frac{\sqrt{21} }{2}$

$\sec\,\theta = \frac{-5}{2}$

$cosec\,\theta =\frac{-5}{\sqrt{21} }$

$\cot\,\theta =\frac{2}{\sqrt{21} }$

Step-by-step explanation:

$\cos\theta =\frac{-2}{5}$

As both $sin\,\theta$ ,

$\theta$ lies in the third quadrant.

In the third quadrant,

$\sin\theta$

$\sin\,\theta =-\sqrt{1-\cos^2\,\theta} \\=-\sqrt{1-(\frac{-2}{5})^2 } \\\\=-\sqrt{1-\frac{4}{25} }\\\\=-\sqrt{\frac{25-4}{25} }\\\\=-\frac{\sqrt{21} }{5}$

$\tan\,\theta = \frac{\sin\,\theta}{\cos\,\theta }\\\\=\frac{\frac{-\sqrt{21} }{5} }{\frac{-2}{5} }\\\\=\frac{\sqrt{21} }{2}$

$\sec\,\theta =\frac{1}{\cos\,\theta }\\\\=\frac{1}{\frac{-2}{5} }\\\\=\frac{-5}{2}$

$\ cosec \,\theta = \frac{1}{sin\,\theta }\\\\=\frac{1}{\frac{-\sqrt{21} }{5} }\\\\=\frac{-5}{\sqrt{21} }$

$\cot\,\theta =\frac{1}{\tan\,\theta}\\\\=\frac{1}{\frac{\sqrt{21} }{2} }\\\\=\frac{2}{\sqrt{21} }$

3 0

3 years ago

A quadrilateral has three angles that measure 90o , 100o, and 120o. Which is the measure of the fourth angle?

Reptile [31]

$360 - (100 + 90 + 120) \\ 360 - 310 = 50$
it measures 50

good luck

3 0

4 years ago

Write the equation of the line passing through the point (-4 "-7)" and (8 "-17)"

kicyunya [14]

Answer:

$y = -\dfrac{5}{6} x -\dfrac{31}{3}$

In order to find equation:

<u>Find slope</u>:

$\sf slope: \dfrac{y_2 - y_1}{x_2- x_1} = \dfrac{rise}{run}$

$\rightarrow \sf slope: \dfrac{-17-(-7)}{8-(-4)}$

$\rightarrow \sf slope: -\dfrac{5}{6}$

Then find equation using:

y - y1 = m(x -x1) where (x1, y1) are points, m is slope

$\sf \rightarrow y - (-17) = -\dfrac{5}{6} (x - 8)$

$\sf \rightarrow y = -\dfrac{5}{6} x + \dfrac{20}{3} -17$

$\sf \rightarrow y = -\dfrac{5}{6} x -\dfrac{31}{3}$

5 0

2 years ago

Identify the properties of equality needed to isolate a varaible and solve a given equation. Use the drop-down menus to show you

Anna71 [15]

Answer:

If two expressions are equal to each other, and you add the same value to both sides of the equation, the equation will remain equal. When you solve an equation, you find the value of the variable that makes the equation true. In order to solve the equation, you isolate the variable.

4 0

2 years ago

4 is less than w, and 8 is greater than or equal to w

sesenic [268]

Answer:

4 < w

8 > w

The greater than sign would have a line under it.

Step-by-step explanation:

7 0

2 years ago