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kolezko [41]
3 years ago
13

Which could be an equation​

Mathematics
2 answers:
ikadub [295]3 years ago
8 0

Answer:

B

Step-by-step explanation:

I all ready explained in comments.

IRINA_888 [86]3 years ago
4 0

Answer:

i think maybe D

Step-by-step explanation:

Normally a equation has to have an equal sign and all the numbers add up

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Find the value of each expression. show your work.<br><br> 9^P3<br><br> and<br><br> 10^C4
Komok [63]
⁹P₃=9×8×7=504; ¹⁰C₄=10×9×8×7÷(4×3×2×1)=210.
3 0
3 years ago
Two step linear equations<br><br>-36=c/-2+(-27)
attashe74 [19]

1044

-36=c/-29

Multiply -29 to both sides.

c=1044

6 0
3 years ago
option 1 drop down are: even-odd identity, quotient identity, Pythagorean identity, double-number identity.option 2 drop down ar
motikmotik

Answer:

The equation is given below as

\frac{\cos2x}{\cos x}=\cos x-\sin x\tan x

Step 1:

We will work on the left-hand side, we will have

\begin{gathered} \cos x-\sin x\tan x \\ \text{recall that,} \\ Quoitent\text{ identity is} \\ \tan x=\frac{\sin x}{\cos x} \end{gathered}

By substituting the identity above, we will have

\begin{gathered} \cos x-\sin x\tan x=\cos x-\frac{\sin x.\sin x}{\cos x}=\cos x-\frac{\sin^2x}{\cos x} \\  \end{gathered}

Here, we will make use of the quotient identity

Step 2:

By writings an expression, we will have

\begin{gathered} \cos x-\sin x\tan x=\cos x-\frac{\sin x.\sin x}{\cos x} \\ \cos x-\sin x\tan x=\frac{\cos^2x-\sin^2x}{\cos x} \end{gathered}

Here, we will use the definition of subtraction

\cos x-\frac{\sin^2x}{\cos x}

Step 3:

We will apply the double number identity given below

\begin{gathered} \cos 2\theta=\cos (\theta+\theta)=\cos ^2\theta-\sin ^2\theta \\ \cos 2x=cos(x+x)=\cos ^2x-\sin ^2x \end{gathered}

By applying this, we will have

\frac{\cos^2x-\sin^2x}{\cos x}=\frac{\cos2x}{\cos x}

Here, we will use the double number identity

\frac{\cos^2x-\sin^2x}{\cos x}

5 0
1 year ago
Is it c or its not??
Bingel [31]

Answer:

C)  0.9

Step-by-step explanation:

density = mass / volume

density = 82 / 96

density = 0.9 g/mL

6 0
3 years ago
Read 2 more answers
May someone please help me with question 6 and 7?
svetlana [45]
Lowest wind chill temperature on Monday was 1/4(-36) = -9 F

The lakes initial level with respect of normal is -8 inches
New level after decreases = -8 - 1 1/4 - 2 3/8 = -11 5/8 inches.
5 0
3 years ago
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