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Zepler [3.9K]
3 years ago
7

I

Mathematics
1 answer:
ludmilkaskok [199]3 years ago
4 0

Answer:

9 blue marbles

Step-by-step explanation:

4 : 3 ratio

12 : x

12 / 4 = 3

4 × 3 : 3 × 3

12 : 9

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What is 22b+3b simplified
ss7ja [257]

it's a simple addition:

22b + 3b =

25b

5 0
3 years ago
Which of the following mean the same as x-intercept?
aleksklad [387]

Answer:

(A), (D), and (E)

Step-by-step explanation:

In a quadratic function, the solutions are always on the x-axis, which means that it can be another word for x-intercept. Also, a zero and a root are the same thing, and they are both x-intercepts. Hope this helps!

8 0
3 years ago
If f and g are differentiable functions for all real values of x such that f(1) = 4, g(1) = 3, f '(3) = −5, f '(1) = −4, g '(1)
belka [17]

Answer:

h'(1)=0

Step-by-step explanation:

We use the definition of the derivative of a quotient:

If h(x)=\frac{f(x)}{g(x)}, then:

h'(x)=\frac{f'(x)*g(x)-f(x)*g'(x)}{(g(x))^2}

Since in our case we want the derivative of h(x) at the point x = 1, which is indicated by: h'(1), we need to evaluate the previous expression at x = 1, that is:

h'(1)=\frac{f'(1)*g(1)-f(1)*g'(1)}{(g(1))^2}

which, by replacing with the given numerical values:

f(1) =4\\g(1)=3\\f'(1)=-4\\g'(1)=-3

becomes:

h'(1)=\frac{f'(1)*g(1)-f(1)*g'(1)}{(g(1))^2}=\\=\frac{-4*3-4*(-3)}{(3)^2}=\frac{-12+12}{9} =\frac{0}{9} =0

3 0
3 years ago
If x = 2, y = -1, Simplify and find the value of x(2) - 3 (x(2) + y(2) - 4).
noname [10]

Answer:

I think it would be -4x-6y+12

5 0
3 years ago
Read 2 more answers
Solve (2a^x + 1/2b^x)^2
alexira [117]

Answer:

(4a^{2x} )+2a^{x} b^{x} + \frac{b^{2x} }{4}

Step-by-step explanation:

The given equation is

(2a^x + \frac{1}{2}b^{x} } )^2 ...........(i)

we know the formula i.e.

(a+b)^{2}= a^{2}+ b^{2} +2(a)(b)

Applying this formula on equation (i) gives

= (2a^{x} )^{2} +(\frac{1}{2})^{2}*(b^{x} )^{2} + 2 (2a^{x} )(\frac{1}{2} b^{x})

Opening the sqaure gives and canceling  \frac{1}{2} with 2 gives us

= 4a^{2x} + \frac{1}{4}b^{2x} + 2a^{x}b^{x}

= (4a^{2x} )+2a^{x} b^{x} + \frac{b^{2x} }{4}

which is the answer

6 0
3 years ago
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