Anybody help me plz give the right answer thx

Mathematics

1 answer:

Alenkasestr [34]3 years ago

4 0

Answer:

39 degrees

Step-by-step explanation:

It is assumed given the triangle that angles CBD and ABD are complementary angles since the triangle is a right triangle. Thus, 90-51=39, and therefore angle ABD must be measured 39 degrees.

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Please answer a and b, I will give brainliest!!!!!

aniked [119]

Answer:

Step-by-step explanation:

because it passes the vertical line test and A does not if you look at x = 1 there are 2 points along that point (1,3) (1,-1)

5 0

3 years ago

Which represents a quadratic function ?

mars1129 [50]

Answer:

$\boxed{\boxed{B.\ f(x)=\dfrac{3}{4}x^2+2x-5}}$

Step-by-step explanation:

Quadratic function-

It is a function that can be represented by an equation of the form $f = ax^2 + bx + c$ , where $a\neq 0$

In a quadratic function, the greatest power of the variable is 2.

As in the first option the highest power is 3, so it is not a quadratic function.

Even though the power of x is 2 in the third option, but as it is in the denominator, so the overall power of x becomes -2. Hence it is not a quadratic function.

As the coefficient of $x^2$ is 0 in case of fourth option, so it is not a quadratic function.