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3 years ago

Solve and graph the following inequality: 2x + 5 > -9

Mathematics

1 answer:

arsen [322]3 years ago

6 0

Answer:

x=-7

Step-by-step explanation:

you bring the 5 to the right and them divide them and divide by 2 both sides which equales to 7

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If sin theta=-1/4 and theta terminates in the third quadrant, find the exact value of sin2 theta.

DIA [1.3K]

Answer:

$sin(2\theta)=\frac{\sqrt{15}}{8}$

Step-by-step explanation:

We are given

$sin(\theta)=-\frac{1}{4}$

Firstly, we can draw triangle

angle lies in third quadrant

so, we get

$cos(\theta)=-\frac{\sqrt{15} }{4}$

now, we can use formula

$sin(2\theta)=2sin(\theta)\times cos(\theta)$

now, we can plug values

$sin(2\theta)=2\times -\frac{1}{4}\times -\frac{\sqrt{15} }{4}$

now, we can simplify it

and we get

$sin(2\theta)=\frac{\sqrt{15}}{8}$

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4 years ago

Read 2 more answers

Draw the graph with its equation -2x+7y=14?

allochka39001 [22]

Answer:

Step-by-step explanation:

Since the slope is 2/7, and it has the y-intercept of 2, the first point would be (0,2)

5 0

3 years ago

Find the value of x. Round to the nearest tenth. х 12 4 X = = [ ? ]

Rom4ik [11]

Use cosine trigonometric relation.

$Cos~x=\frac{Adjacent} {Hypotenuse} \\\\ \to cos~x=\frac{4}{12} \\\\ \to cos~x= \frac{1}{3} \\\\ x=arccos(\frac{1}{3})\\\\ x \approx 70°$

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3 years ago

What the answer for 3 thousands 16 tens 7 ones

vodomira [7]

The answer is 3,167 all u do is put all the numbers together and u will get your answer

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3 years ago

Find the measure of the numbered angles for the parallelogram in question one!!!

vodka [1.7K]

1) 70
2) 110
3) 70

because 110 is equivalent to angle 2. angle 1 and 3 are also equivalent so you add 110 + 110 which equals 220 and subtract 360-220 which equals 140 and divide by 2 to get angles 1 and 3.

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3 years ago