3 years ago

I need help on #5,6, and 7

1 answer:

8 0

5.
$f(3) = 4 \times 3 - 3 = 12 - 3 = 9$
6.
$f(0) = 4 \times 0 - 3 = 0 - 3 = - 3$
7.
$f( - 7) = 4 \times ( - 7) - 3 = - 28 - 3 = - 31$

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In triangle ABC, angle A is 75o and angle B is 20o. Select the triangle that is similar to triangle ABC.

Arturiano [62]

Answer:

A. $\triangle$ DEF where $\angle D = 75^{\circ}$ and $\angle E = 20^{\circ}$ .

Step-by-step explanation:

At first we must keep in mind that two triangles are similar when they have same angle configuration, that is, each pair of angles is congruent. If $\triangle$ ABC and $\triangle$ DEF, then $\angle A \equiv \angle D$ and $\angle B \equiv \angle E$ . Hence, $\angle D = 75^{\circ}$ and $\angle E = 20^{\circ}$ .