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1 year ago

Can someone please help me with this! Its been a while since I've had a problem like this and I need a refresher

Mathematics

2 answers:

max2010maxim [7]1 year ago

7 0

Answer:

x° = 40°

Step-by-step explanation:

142° = 3x° + 22° (Vertically opposite angles)

3x° = 120°

x° = 40°

slega [8]1 year ago

7 0

Answer:

The value of x is 40.

Step-by-step explanation:

We know that:

142 = 3x + 22 (Vertically opposite angles)

Work:

142 = 3x + 22
=> 142 - 22 = 3x + 22 - 22
=> 120 = 3x
=> x = 40

Hence, the value of x is 40.

Hoped this helped.

$BrainiacUser1357$

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The expression 3(2x + 7) − 4(−3x + 5) is equal (=) to

Westkost [7]

Answer:

-6x+26

Step-by-step explanation:

6x+21-12x+5

-6x+26

8 0

2 years ago

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Write a polynomial function of minimum degree in standard form with real coefficients whose zeros and their multiplicities inclu

Softa [21]

Answer-

The polynomial function is,

$y=x^4-10x^3+38x^2-64x+40$

Solution-

The zeros of the polynomial are 2 and (3+i). Root 2 has multiplicity of 2 and (3+i) has multiplicity of 1

The general form of the equation will be,

$\Rightarrow y=(x-(2))^2(x-(3+i))(x-(3-i))$ ( ∵ (3-i) is the conjugate of (3+i) )

$\Rightarrow y=(x-2)^2(x-3-i)(x-3+i)$

$\Rightarrow y=(x^2-4x+4)((x-3)-i)((x-3)+i)$

$\Rightarrow y=(x^2-4x+4)((x-3)^2-i^2)$

$\Rightarrow y=(x^2-4x+4)((x^2-6x+9)+1)$

$\Rightarrow y=(x^2-4x+4)(x^2-6x+10)$

$\Rightarrow y=x^2x^2-6x^2x+10x^2-4x^2x+4\cdot \:6xx-4\cdot \:10x+4x^2-4\cdot \:6x+4\cdot \:10$

$\Rightarrow y=x^4-10x^3+14x^2+24x^2-40x-24x+40$

$\Rightarrow y=x^4-10x^3+38x^2-64x+40$

Therefore, this is the required polynomial function.

4 0

3 years ago

Evaluate 8j - k + 14 when j = 0.25 and k = 1.

pantera1 [17]

Steps to solve:

8j - k + 14; j = 0.25 and k = 1

~Substitute

8(0.25) - (1) + 14

~Simplify

2 - 1 + 14

~Subtract

1 + 14

~Add

Best of Luck!

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2 years ago

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Work out root2^4+3^2 Work out root 10^2-2^6

iren2701 [21]

Answer:

A, B

Step-by-step explanation:

√(2^4+3^2)

√(16+9)

√25

5(Option A)

√(10^2-2^5)

√(100-64)

√36

6(Option B)

6 0

2 years ago

If you were going to represent the top view of the figure, state which boxes should be shaded. Write an essay. Pls, help. Thx.

Rudiy27

Answer:

9, 13, 10, 11, 7, 3, 4.

Step-by-step explanation:

9, 13, 10, 11, 7, 3, 4 are the ones which should be shaded and can be seen from the top. In ascending order: 3, 4, 7, 9, 10, 11, 13.

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2 years ago

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