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3 years ago

PLEASE HELP!!!

Mathematics

1 answer:

Kazeer [188]3 years ago

8 0

Answer:

a = 0

Step-by-step explanation:

The cube root (radical) is equivalent to x^(1/3). When that is divided by x^(1/3), the result is ...

(x^(1/3))/(x^(1/3)) = x^(1/3 -1/3) = x^0

Comparing that to x^a, we find a=0.

_____

The applicable rules of exponents are ...

$\sqrt[n]{x^m}=x^{\frac{m}{n}}\\\\\dfrac{x^a}{x^b}=x^{a-b}$

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user100 [1]

The answer: B. x^2-2x-8

6 0

3 years ago

Can somebody help asap

Ivenika [448]

5. 2.9n+1.7=3.5+2.3n
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3 years ago

Given sin0= 3/7, and tan0 <0, what is the value of coso?

spin [16.1K]

sin θ = 3 / 7 = .429

sin^2 θ + cos^2 θ = 1 trig identity

9/49 + cos^2 θ = 1

cos^2 θ = 40 / 49 = .816 cos θ = .903

Check .429^2 + .903^2 = 1

cos .903 = 25.4 deg

In the second quadrant sin = +, cos = -, tan = -

So 25.4 deg in the second quadrant = 180 - 25.4 = 154.6 deg

Check:

sin 154.6 = .428

cos 154.6 = -.903

tan 154.6 = -.475

8 0

2 years ago

Ahmed is working at a burger joint. His boss pays him $6.50 per hour and promises a raise of $0.25 per hour every 6 months. Whic

lora16 [44]

Answer:

Step-by-step explanation:

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3 years ago

Find the number that must be added to each expression to form a perfect square trinomial. Then write the trinomial as a binomial

maksim [4K]

<h2>Hello!</h2>

The answers are:

a) $\frac{49}{4}$

b) $(x+\frac{7}{2})^{2}$

First, we need to know that for this case:

$a=1\\2ab=7$

So,

$b=\frac{7}{2}$

$b^{2} =(\frac{7}{2})^{2}=\frac{49}{4}$

We must add $\frac{49}{4}$ to the expression in order to form a perfect square trinomial,

$x^{2} +7x+\frac{49}{4}$

Writing the trinomial as a binomial square:

$(x+\frac{7}{2})^{2}=x^{2}+2*\frac{7}{2}*x+(\frac{7}{2})^{2}=x^{2} +7x+\frac{49}{4}$

Have a nice day!

8 0

3 years ago

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