All categories

3 years ago

A. 28 B. 20 C. 62 D. 70

Mathematics

2 answers:

horsena [70]3 years ago

6 0

Answer:

Imma just go A

Step-by-step explanation:

Leya [2.2K]3 years ago

4 0

Answer:

I think its c 62 but I'm going with that hope it'll have a blessed day

You might be interested in

A system of equations is shown below. Find the solution by using substitution.

Irina18 [472]

Answer:

a) $(1, 1)$

Step-by-step explanation:

5x - 4 = −2x + 3

-5x - 5x

____________

−4 = −7x + 3

- 3 - 3

_________

−7 = −7x

__ ___

−7 −7

1 = x [Plug this back into both equations above to get the y-coordinate of 1]; 1 = y

I am joyous to assist you anytime.

7 0

3 years ago

5/8 of the votes were for blue half of the remaining votes were for green and the remaining 48 votes were for red how many votes

pishuonlain [190]

Half, hope I helped !

8 0

4 years ago

Write the equation 4X -3Y = 12 in the form Y =MX +b

USPshnik [31]

Answer:

Step-by-step explanation:

we have 4x-3y=12

-3y=-4x+12

-y=-4x+12/3

we have 12=3*4 so we remove 3 that is up and 3 that is down

-y=-4x+4

then we get y=+4x+4

4 0

4 years ago

Find all solutions to cosx cos3 x-sinx sine3x= 0 on the interval {0,2pi}

fomenos

$\bf \textit{Sum and Difference Identities}
\\ \quad \\
sin({{ \alpha}} + {{ \beta}})=sin({{ \alpha}})cos({{ \beta}}) + cos({{ \alpha}})sin({{ \beta}})
\\ \quad \\
sin({{ \alpha}} - {{ \beta}})=sin({{ \alpha}})cos({{ \beta}})- cos({{ \alpha}})sin({{ \beta}})
\\ \quad \\
\boxed{cos({{ \alpha}} + {{ \beta}})= cos({{ \alpha}})cos({{ \beta}})- sin({{ \alpha}})sin({{ \beta}})}
\\ \quad \\
cos({{ \alpha}} - {{ \beta}})= cos({{ \alpha}})cos({{ \beta}}) + sin({{ \alpha}})sin({{ \beta}})\\\\
------------------------$

$\bf cos(x)cos(3x)-sin(x)sin(3x)=0\implies cos(x+3x)=0
\\\\\\
cos(4x)=0\implies cos^{-1}[cos(4x)]=cos^{-1}(0)\implies 4x=cos^{-1}(0)
\\\\\\
4x=
\begin{cases}
\frac{\pi }{2}\\\\
\frac{3\pi }{2}
\end{cases}\implies 
\begin{cases}
4x=\cfrac{\pi }{2}\implies &\measuredangle x=\cfrac{\pi }{8}\\\\
4x=\cfrac{3\pi }{2}\implies &\measuredangle x=\cfrac{3\pi }{8}
\end{cases}$

5 0

3 years ago

What property describes the number sentence 6+0=6

yawa3891 [41]

The identity property. the same applies for n*1=n.

8 0

4 years ago