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Lubov Fominskaja [6]
3 years ago
5

For what values of x does -x2 +7x + 5 = 0?

Mathematics
2 answers:
uranmaximum [27]3 years ago
5 0
Use the commutative property-to record the terms

VMariaS [17]3 years ago
3 0

Answer:

Step-by-step explanation:

-2x + 7x + 5 = 0

-2x +7x = 5

5x = 5

divide both side by 5

5x/5 = 5/5

x = 1

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25a^2-30a+9 factor ?
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Factor 25a2−30a+9

25a2−30a+9

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Answer:

(5a−3)(5a−3)


4 0
3 years ago
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. \triangleDEF 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 \triangleABC and \triangleDEF, then \angle A \equiv \angle D and \angle B \equiv \angle E. Hence, \angle D = 75^{\circ} and \angle E = 20^{\circ}.

In a nutshell, correct answer is A.

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-----------------------------<span />

8 0
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Need answer ASAP this assignment is due tomorrow
dmitriy555 [2]

Answer:

Venn diagrams, De'moivres rule and probability

Step-by-step explanation:

4 0
3 years ago
_________________<br>√(-√2-(-√2))²+(√3-2√3)²
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