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elixir [45]
3 years ago
11

Please help, I need Answers quickly.

Mathematics
2 answers:
Deffense [45]3 years ago
8 0
Add 6.5 to both sides

D=-0.7

A
snow_lady [41]3 years ago
6 0

The answer is definitely -0.7

You might be interested in
Given sec(theta)= 5... find cot(90-theta)
Mumz [18]
\sec(\theta)=\frac{1}{\cos(\theta)}
\\
\\\cos(\theta)=\frac{1}{\sec(\theta)}=\frac{1}{5}
\\
\\ \sin^2\theta+\cos^2\theta=1
\\
\\\sin\theta= \sqrt{1-\cos^2\theta}= \sqrt{1-( \frac{1}{5})^2 }  = \sqrt{1- \frac{1}{25} } = \sqrt{ \frac{25}{25} -\frac{1}{25} }=\frac { \sqrt{24}}{5} 
\\
\\ \cot(90^o-\theta)=\tan{\theta}= \frac{\sin\theta}{\cos\theta} = \frac{\frac { \sqrt{24}}{5} }{ \frac{1}{5} } = \sqrt{24} = \sqrt{4\times6}=2 \sqrt{6}  
\\

3 0
3 years ago
Solve the equation (for n )
myrzilka [38]

Hello! Hopefully I will be able to clarify and answer your equation in a way that can help you understand better. Here are the steps...

N + 6/-4 = 10

N + 6 = -40

N = -40 - 6

N= -46

Hope this helped!

7 0
3 years ago
Read 2 more answers
Somebody helpppppp...................???????
olga55 [171]
I’m pretty sure it’s the second one
4 0
3 years ago
Pls help and thank you lolz
guapka [62]

Answer:

55

Step-by-step explanation:

there are two ways to answer : since angle 1 and the 125 degree angle are a linear pair, you can do 180-125 = 55, or, since the three angles in the triangle always add up to 180, you can do 180-37-88 = 55.

3 0
3 years ago
Read 2 more answers
Find the length x.<br> pls help
scoray [572]

Answer:

x = 6

Step-by-step explanation:

To find x we set up an  equation as so:

\frac{4.5}{x} =\frac{6}{8}

Then we solve by multiplying 4.5 by 8 and 6 by x

6x=36    Solve for x

\frac{6x}{6} =\frac{36}{6}    x = 6

To check our answer when we substitute x or 6 we divide to make sure both sides equal the same number

\frac{4.5}{6} =\frac{6}{8}    when divided both equals 0.75

4 0
2 years ago
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