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4 years ago

Use the zero product property to find the equation x^2 + x - 30 = 12

Mathematics

1 answer:

Tom [10]4 years ago

4 0

x=6, add thirty to both sides 6 squared is 36, plus six is 42

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The triangular pyramid shown is made up of four congruent triangles. The length of the base is 8 inches, and the height of the b

Aneli [31]

Answer:

(B) Talia is correct. The lateral area can be found by approximating one large triangle, which can be found using the expression 4 (one-half (8) (6.9))

Step-by-step explanation:

Base of the Pyramid = 8 Inches

Height of the Triangular Face = 6.9 Inches

In any solid shape, the Lateral surface area is the sum of all sides except its top and bottom bases.

Since the four triangles are congruent:

Lateral Surface Area = 4 X Area of One Triangle

Area of a Triangle = $\frac{1}{2}$ X Base X Height$

Area of one Triangular Face $= \dfrac{1}{2}(8)(6.9)$

Therefore:

Lateral Surface Area $= 4\left(\dfrac{1}{2}(8)(6.9)\right)$

Therefore, Talia is correct.

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3 years ago

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NemiM [27]

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3 years ago

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alisha [4.7K]

Answer:

7b-c²

Step-by-step explanation:

7times b is 7b reduced by the square of c means minus c²

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3 years ago

3 over 20 as a percent

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3 years ago

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user100 [1]

Step-by-step explanation:

5x = 19 - 4

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hope it helps!

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3 years ago

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