Two sisters open savings accounts with $60 each that their

1 answer:

5 0

After two months because in two months, the first sister would have added $40 in total to her account. It is given that after two months, the second sister would make her first deposit of $40.

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Solve the equation x^2 + 5x + 4 = 0

alex41 [277]

X^2 + 5x + 4 = 0
(x + 4)(x + 1) = 0

x + 4 = 0
x = -4 <===

x + 1 = 0
x = -1 <===

6 0

4 years ago

A student scores 74,87,68,63,76 on his last five exams. His teacher will drop the lowest grade to compute the student's average.

den301095 [7]

Answer: 76.25

Average is the sum of numbers divided by the number of numbers

74 + 87 + 68 + 76 = 305

305 / 4 = 76.25

7 0

3 years ago

Given: angle Q is congruent to angle T and line QR is congruent to line TR

Ainat [17]

3. Two angles and included side (ASA congruence theorem).

Reason: This is because, it is given that angle Q is congruent to angle T and line QR is congruent to line TR. Also, we proved in step 2 that $\angle PRQ\cong\angle SRT$ . Thus, we have two angles and the side included as congruent and thus, the two triangles are congruent.

4. CSCT (Corresponding Sides of a Congruent Triangle)

Reason: PR and SR are the corresponding sides of the congruent triangles $\Delta PRQ$ and $\Delta SRT$ , therefore, by the CSCT these corresponding sides have to be congruent.