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iris [78.8K]
3 years ago
8

Solve for x. Round to the nearest hundredth. B 570 A 10.8 C

Mathematics
1 answer:
Margarita [4]3 years ago
4 0

Answer:

58.014

Step-by-step explanation:

hope it really helps your friend

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Citrus2011 [14]

Answer:

the answer is option B

Step-by-step explanation:

To find dy/dx the equation here is

first multipled by derivative of second + second multipled by derivative of first

y = x*sinx

dy/dx = x * derivative of sinx + sinx * derivative of x

derivative of x with respect to x is 1

derivative of sinx with respect to x is cosx

therefore

dy/dx = x * cosx + sinx * 1

= x * cosx + sinx

5 0
3 years ago
Select and use the most direct method to solve 2x(x + 1.5) = -1. Describe and justify the methods you used to solve the quadrati
miskamm [114]

Step-by-step explanation:

Given that,

A quadratic equation,

2x(x + 1.5) = -1

We need to solve the quadratic equation. Firstly we need to simplify the above equation to form it as ax^2+bx+c=0.

So,

2x^2+3x=-1\\\\2x^2+3x+1=0

Here, a = 2, b = 3 and c = 1

The roots of the given equation can be given by :

x=\dfrac{-b\pm \sqrt{b^2-4ac} }{2a}

Putting all the values we get :

x=\dfrac{-b\pm \sqrt{b^2+4ac} }{2a}, \dfrac{-b\pm \sqrt{b^2-4ac} }{2a}\\\\x=\dfrac{-3\pm \sqrt{3^2+4(2)(1)} }{2(2)}, \dfrac{-3\pm \sqrt{3^2-4(2)(1)} }{2(2)}\\\\x=\dfrac{-3+1}{4}, \dfrac{-3-1}{4}\\\\x=-\dfrac{1}{2}, -1

So, the roots of the given equation is -1/2 and -1.

5 0
3 years ago
I need to find y but I think I need to solve for x first?
Alexeev081 [22]
I'm confused, it shows y at a right angle = 90°
we can solve for x
(x-7) and (x-3) = x=7

5 0
3 years ago
Read 2 more answers
Darcy uses place value blocks to show a number. She uses 4 thousand blocks and five hundereds blocks. What is the number? How ca
Maksim231197 [3]
Answer is 4,500. 4 1,000 blocks =4,000. 5x100 =500. 4,000 + 500 = 4,500.
4 0
3 years ago
8<br> Given the summation E (3 + 2n),<br> n=1<br> a. Write the first four terms of the sequence.
Troyanec [42]

Answer:

(e^3 / e^2n)

Step-by-step explanation:

5 0
3 years ago
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