For the polynomial 6xy2−5x2y? +9x2 to be a trinomial with a degree of 3 after it has been fully simplified, what is the missing exponent of the y in the second term? 0 1 2 3

  1

Step-by-step explanation:

For the degree to be 3, the total of exponents in any given term must be 3 or less. The term containing the question mark already has an exponent of 2 on the x-variable, so the exponent of the y-variable must be 1 or less. We assume the y-variable would not be written if its exponent were zero (as in the last term), so the exponent of y must be 1.

1

Step-by-step explanation:

m∠cdf = 43° , m∠gdf = 114°, m∠gde = 23°, m∠edh = 23° , m∠cdh = 157°

step-by-step explanation:

since, it is given that de bisects the angle gdh ⇒ de divides the angle gdh into two equal angles.

⇒ m∠gde = m∠edh

⇒ 8·x   - 1 = 6·x + 5

⇒ x = 3

so, m∠gde = 8·x - 1 = 23°

and m∠edh = 23°

now, it is given ∠cde is an straight angle so, m∠cde = 180°

⇒ m∠cdf + m∠fdg + m∠gde = 180°

⇒ 43° + m∠fdg + 23° = 180°

⇒ m∠fdg = 114°

again, m∠cde = m∠cdh + m∠edh = 180°

m∠cdh + 23° = 180°

⇒ m∠cdh = 157°

21

jk it's 20

step-by-step explanation: