2 years ago

Identifying an Error

Mathematics

1 answer:

PtichkaEL [24]2 years ago

4 0

The answer should be A because when you multiply two negatives it comes out positive

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What is the value of x in the equation 7x + 2y = 48 , when y = 3?

9966 [12]

7x + 2y = 48
7x + 2(3) = 48
7x + 6 = 48
7x = 42
x = 6

answer when y = 3, x = 6

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3 years ago

What is the prime factorization for 40, 210 and 165? (finding the lcm)

Lemur [1.5K]

Answer:

Is below.

Step-by-step explanation:

Prime Factors:

40 = 2*2*2*5

210 = 2*3*5*7

165= 3*5*11

The LCM is 2*2*2*3*5*7*11

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3 years ago

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sveticcg [70]

Answer:

A = 15u²

Step-by-step explanation:

Area of a Trapezoid Formula:

$\frac{h}{2}*(b_1+b_2)$

Plug in our values (h = 3, b1 = 7, b2 = 3)

$\frac{3}{2}*(7+3)$

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$\frac{3}{2}*(10)$

$\frac{30}{2} = 15$

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2 years ago

The _____ is the point of intersection of the medians of a triangle.

OlgaM077 [116]

Answer:

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3 years ago

The sum of one and the product 4 and a number z

Dovator [93]

Answer: 5z

Step-by-step explanation:

1+4 * z= 5z

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3 years ago