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Montano1993 [528]
3 years ago
11

PLEASE SOLVE THESE 3 EASY 6TH GRADE QUESTIONS WILL GIVE BRAINLY

Mathematics
2 answers:
Brrunno [24]3 years ago
5 0

Answer:

3x5

Step-by-step explanation:

valentinak56 [21]3 years ago
3 0
It will be 3x6 and that equals =18
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2cos^2A-cos2A-1=0 <br> Help
kondor19780726 [428]

Answer:

steps below

Step-by-step explanation:

Are you going to solve the value of A or just a proof the equation

cos 2A = cos² A - sin² A

2cos²A-cos2A-1 = 2cos²A - (cos² A - sin² A) - 1 = cos² A + sin² A - 1

2cos²A-cos2A-1 = 1 - 1 = 0

A: 90° or 270° or 450° .....

8 0
2 years ago
Find the length of AB
VARVARA [1.3K]
You need to provide a picture or something
3 0
3 years ago
Solve 3x²-x-2=0. Please show all work.​
lorasvet [3.4K]

3x²-x-2=0

Δ=1+24=25 (Δ=b²-4ac)

x₁,₂=\frac{1(+/-)\sqrt{25} }{6}

x₁,₂=\frac{1(+/-)5}{6}

x1=\frac{1+5}{6}=6/6=1

x2=\frac{1-5}{6}=\frac{-2}{3}

so

x1=1

x2=\frac{-2}{3}

3 0
4 years ago
What equation would you use to find the measure of
PIT_PIT [208]

The figure is a parallelogram, and in a parallelogram, the lower side and the upper side have the same length. Also, the left side and the right side have the same length. This is shown in the following image:

The red sides are equal, and the blue sides are equal.

Thus, since the blue sides are equal, we can use the following equation to find x:

7x=3x+14

And since, once we know x, we can know the length of JK, this is the equation that we can use to find JK.

Answer:

7x=3x+14

6 0
1 year ago
six angles of a heptagon measure 107, 139, 131, 110, 145. and 128. what is the measure of the seventh angle​
alexgriva [62]

the measure is 140, I basically summed all of the angles of a polygon of “n”, which is 7, then I did 7-2 times 180 (900) so I can finally add up all of your measurements

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3 years ago
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