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3 years ago

Express the perimeter of the triangle as a polynomial.

Mathematics

2 answers:

Tcecarenko [31]3 years ago

7 0

The perimeter is just the sum of all of the side lengths.

p=3x+4+x-10+5x-2

p=9x-8

murzikaleks [220]3 years ago

7 0

Add up the lengths of the 3 sides. Starting with x terms, we get 3x + 4 + x - 10 + 5x - 2. The x terms combined result in 9x and the constants combined result in -8. The perimeter is thus 9x - 8 units.

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PLEASE HELP!! NO LINKS!! GIVING 20 POINTS AWAY!!

shutvik [7]

Answer:

$m\angle N = 32\degree$

$m\widehat {NQ}=106\degree$

Step-by-step explanation:

By inscribed angle theorem:

$m\angle N = \frac{1}{2} \times m\widehat {MP}$

$m\angle N = \frac{1}{2} \times 64\degree$

$m\angle N = 32\degree$

Again by inscribed angle theorem:

$m\angle P= \frac{1}{2} \times m\widehat {NQ}$

$53\degree = \frac{1}{2} \times m\widehat {NQ}$

$2\times 53\degree = m\widehat {NQ}$

$m\widehat {NQ}=106\degree$

5 0

3 years ago

Sixteen blocks are needed to build a four-step double staircase like

OleMash [197]

16 blocks = 4 steps
x blocks = 50 steps
(16 blocks x 50 steps)/4 steps
= 200 blocks

6 0

3 years ago

(c³d)a(cd⁷)a<br>Simplify <br>

Veseljchak [2.6K]

Answer:

= c^4 d^8 a^2

Step-by-step explanation:

Apply exponent rule: aa= a^2

= c^3 da^2 cd^7

= c^4 da^2 d^7

= c^4 d^8 a^2

5 0

3 years ago

Please help! 30 points! ASAP plz and correct answers only please!!

Rasek [7]

Answer: NA and Rb and there are 20 protons in calcium!

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Determine the projection of w onto u.

irina [24]

Answer:

A.6.2i-4.2 j

Step-by-step explanation:

We are given that

$u=9i-6j$

$v=-3i-2j$

$w=19i+15j$

We have to find the projection of w on to u.

The project of vector a on b

= $\frac{a\cdot b}{\mid b\mid^2}b$

$w.u=(19i+15j)\cdot (9i-6j)=171-90=81$

$\mid u\mid=\sqrt{x^2+y^2}=\sqrt{9^2+(-6)^2}=\sqrt{117}$

Using the formula

The projection of w on to u

$=\frac{u\cdot w}{\mid u\mid^2}(u)=\frac{81}{117}(9i-6j)$

The projection of w on to u=6.2i-4.2j

Hence, option A is true.

4 0

3 years ago

Read 2 more answers