3 years ago

2(n2 + 1) − 3(n2 − 3) + 3(7n2 − 2), n = 1 4

Mathematics

1 answer:

lys-0071 [83]3 years ago

5 0

The correct answer is 61 :)(;

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Please help!

siniylev [52]

Answer:

The answer is 72

First you find E=180-130=50

Then you add all the angles and subtract from 360

102+100+50=252

360-252=108

then you do 180-108=72

8 0

3 years ago

Read 2 more answers

Simplify the expression. 12x^-6 y^10 times 3x^7 y

Vlada [557]

We need to simplify the expression:

$12x^{-6}y^{10} \times (3x^{7}y)$

Now, we know that we can resolve the exponents of the variables with the like terms only and we can multiply the coefficients independently:

Now,

$12x^{-6}y^{10} \times 3x^{7}y=(12 \times 3)\times (x^{-6}\times x^{7})\times (y^{10}\times y)$

On simplifying the above expression we get:

$36\times x^{(-6+7)}\times y^{(10+1)}$

$=36 \times x^{1}\times y^{11}$

$=36 \times x \times y^{11}$

$=36xy^{11}$

So the simplified form of the expression $12x^{-6}y^{10} \times 3x^{7}y=36xy^{11}$ .

7 0

3 years ago

patty is building a rope ladder for a tree house. she need two 5-foot pieces of rope the sides of the ladder.she needs 7 pieces

klio [65]

The answer is 136 because 7 x 18 is 126 then + 10 is 136

5 0

3 years ago

Help please WILL GIVE BRAINLEIST

JulsSmile [24]

Answer:

D. 0.85

Step-by-step explanation:

divide 6 by 5.10

6 0

3 years ago

Please help with geomtry

notsponge [240]

Angle ADB is a right angle, which is given.

The measure of ADB is 90 degrees by definition of right angle.

The two angles are a linear pair (aka they're supplementary) by definition of linear pair (they're formed by two intersecting lines).

The measure of BDC is 90 because BDC + ADB = 180 (definition of linear pair), and ADB = 90 (given).

BDC = ADB because 90 = 90

Overall, the two triangles are congruent by SAS.

5 0

3 years ago