Which value makes -1/2x-8<1 true A.-4 B.-20 C.3

Mathematics

1 answer:

Romashka [77]4 years ago

5 0

The value that makes this true is a

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What value of x makes the equation true?

Aleksandr [31]

♥ Answer: x=-6.9

Solve:
You need to Simplify both sides of the equation.
 $806.265=-116.85x$
Now: Flip the equation.
 $-116.85x=806.265$ 
Lastly Divide both sides by -116.85.
 $\frac{-116.85x}{-116.85} = \frac{806.265}{-116.85}$

Final answer: x=-6.9

6 0

3 years ago

The value of is between 4.7 and 4.8. Which of the following is a more precise approximation of ?

Nataly_w [17]

Answer: D. between 4.79 and 4.8

Step-by-step explanation:

The square root of 23 (√23) is 4.79583152331. We can obviously eliminate A and B. C and D is left. C is wrong because if we approximate the square root of 23, which is 4.79583152331, we get 4.79. 4.79 > 4.78, so it can't be C. Hope this helps :)

4 0

3 years ago

Please please use explanation with answer

KIM [24]

Answer:

$\large\boxed{\theta=-\dfrac{\pi}{4}+k\pi\ or\ \theta=k\pi}\ for\ k\in\mathbb{Z}$

Step-by-step explanation:

$\tan^2\theta+\tan\theta=0\\\\\tan\theta(\tan\theta+1)=0\iff\tan\theta=0\ \vee\ \tan\theta+1=0\\\\\tan\theta=0\Rightarrow \theta=k\pi\ \text{for}\ k\in\mathbb{Z}\\\\\tan\theta+1=0\qquad\text{subtract 1 from both sides}\\\\\tan\theta=-1\Rightarrow\theta=-\dfrac{\pi}{4}+k\pi\ \text{for}\ k\in\mathbb{Z}$