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3 years ago

I need help with (b) plz help me

Mathematics

1 answer:

Alex73 [517]3 years ago

5 0

He would need to work at least five hours

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80 POINTS HURRY ILL GIVE BRANLIEIST!!!

notka56 [123]

Answer:

360 meters

Step-by-step explanation:

$\sqrt{8100}$ = 90

one edge = 90 meters

90 x 4 = 360

360 meters

4 0

3 years ago

3.2(2.9 + 2.9r)<br><br>what is the Answer please tell me the True Answer

raketka [301]

$Hiya!$

Here's a explanation!

$3.2(2.9+2.9)= 9.28$

$3.2(9.28+2.9) = 12.18$

$r = 12.18$

Hopefully, this helps you!!

$Sokka$

4 0

3 years ago

Multiplying a trinomial by a trinomial follows the same steps as multiplying a binomial by a trinomial. Determine the degree and

Veseljchak [2.6K]

Degree = 4

Maximum possible number of terms for = 5

Solution:

Given expression:

$\left(x^{2}+x+2\right)\left(x^{2}-2 x+3\right)$

To multiply the trinomial by a trinomial:

$\left(x^{2}+x+2\right)\left(x^{2}-2 x+3\right)$

Multiply each of the first term by the each of the second term.

$=x^{2}(x^{2}-2 x+3)+x(x^{2}-2 x+3)+2(x^{2}-2 x+3)$

$=(x^{4}-2 x^3+3x^2)+(x^{3}-2 x^2+3x)+(2x^{2}-4 x+6)$

Remove the brackets and arrange the terms with same powers together.

$=x^{4}-2 x^3+x^{3}+3x^2-2 x^2+2x^{2}+3x-4 x+6$

$=x^{4}- x^3+3x^2- x+6$

The product of the trinomials is $x^{4}- x^3+3x^2- x+6$ .

Degree is the highest power of the variable.

Degree = 4

Maximum possible number of terms for = 5

3 0

3 years ago

Read 2 more answers

How do I solve this problem

Ronch [10]

$\overline{LK}\cong\overline{MK}\\LK=MK=7x-10\\KN=x+3\\MN=9x-11\\KJ=28\\\\MN=MK+KN\\\text{therefore we have the equation:}\\9x-11=(7x-10)+(x+3)\\9x-11=8x-7\ \ \ |+11\\9x=8x+4\ \ \ \ |-8x\\x=4$

$LJ=LK+KJ\\\\LK=7x-10\to LK=7(4)-10=28-10=18\\\\\text{therefore}\\LJ=18+28=46$

Answer: LJ = 46.

4 0

3 years ago

In order to find the y-intercept of a quadratic function, you should ___________.

dangina [55]

Your answer is C cause to corresponds to it!

8 0

3 years ago