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3 years ago

To solve the system of linear equations 3x-2y- 4 and Ex-By-12 by using the linear combination method, Henry decided that

Mathematics

1 answer:

Ber [7]3 years ago

3 0

Answer:

Henry could only see one line.

Step-by-step explanation:

Since, both line have same slope. The graph of both equation will be same and hence it will overlap each other.

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Josh went to Applebee's and enjoyed a delicious steak. He enjoyed his server and wanted to give her an extra special tip . Usual

vesna_86 [32]

Answer: Josh tips to his server = $5.25

He tips $1.05 his server today, than he normally would tip.

Josh final bill=$42

Step-by-step explanation:

Given: Josh subtotal amount before tax = $21.00

Previous tip =20% of 21= $0.2\times21=4.2$

Current tip= 25% of 21= $0.25\times21=5.25$

Josh tips to his server = $5.25

Increase in tip= $5.25-4.2 =\$1.05$

So, he tips $1.05 his server today, than he normally would tip.

Now, Tax amount =7.5 % of 21= $0.75\times21=\$15.75$

Hence, Josh final bill= Subtotal before tax+tip+tax

$\$21+\$5.25+\$15.75=\$42$

4 0

2 years ago

Y=x+ - 4x3 Find the two stationary points on the graph of y=x4 - 4x3

mafiozo [28]

Answer: $(0,0), (3,-27)$

Step-by-step explanation:

Given

Curve is $y=x^4-4x^3$

The stationary point on a differentiable function is the points where the differentiation of the function is zero i.e. slope is zero at that point.

Differentiate the curve $f(x)=x^4-4x^3$

$\Rightarrow f'(x)=4x^3-12x^2$

Equate it to zero

$\Rightarrow 4x^3-12x^2=0\\\Rightarrow 4x^2(x-3)=0\\\Rightarrow x=0,0,3$

Put $x=0,3$ in the function $f(x)=x^4-4x^3$

$\Rightarrow f(0)=0\\\Rightarrow f(3)=3^4-4(3)^3\\\Rightarrow f(3)=81-108\\\Rightarrow f(3)=-27$

Therefore, the stationary points are $(0,0), (3,-27)$

5 0

2 years ago

An angle measuring (870n)° is in standard position. For which value of n will the terminal side fall along the positive portion

Nat2105 [25]

The answer would be n=3

8 0

3 years ago

Read 2 more answers

How would you multiply (3x-8)(2x^2+4x-9)

Naily [24]

(3x-8)(2x^2+4x-9)= 6x^3−4x^2−59x+72
Hope I helped! ( Smiles )

4 0

2 years ago

Anyone know the answer to this

Vesna [10]

Answer:

Part A:

- angle ACB= 60° (ABC equilateral triangle.)

- Angle ECD=EDC= (180°-32°)/2= 148/2= 74° (sum of angles in a triangle is equal to 180, and triangle ECD is isosceles since it's given that CE=DE.

- x= 180°-(60°+74°)

= 180°-134°

= 46°

x= 46°

Part B:

120°

3 0

2 years ago