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3 years ago

(6 + 73)2

Mathematics

1 answer:

Molodets [167]3 years ago

6 0

Answer:45+1273

Step-by-step explanation:

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In the below system,solve for y in the first equation<br> X-3y=-6<br> 2x-7y=10

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Mrs. McDonald's students have been working very hard during class, completing all class work and homework, and even attending tu

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3 years ago

if the input value is negative, is the output value of f(z)=-4z+12 always positive or always negative?

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3 years ago

Which models show 40%? Check all that apply. A model with 4 shaded sections and 6 unshaded sections. A model with 40 shaded sect

Amanda [17]

Answer:

A model with 4 shaded sections and 6 unshaded sections.

A model with 40 shaded sections and 60 unshaded sections.

Step-by-step explanation:

Required:

Which models shows 40%

(a) 4 shaded and 6 unshaded

First, we calculate the total sections

$Total = 4 + 6$

$Total = 10$

The percentage of the shaded section is:

$Shaded = \frac{4}{10} * 100\%$

$Shaded = 0.4 * 100\%$

$Shaded = 40\%$

(b) 40 shaded and 60 unshaded

First, we calculate the total sections

$Total = 40 + 60$

$Total = 100$

The percentage of the shaded section is:

$Shaded = \frac{40}{100} * 100\%$

$Shaded = 0.4 * 100\%$

$Shaded = 40\%$

(c) 2 shaded and 8 unshaded

First, we calculate the total sections

$Total = 2 + 8$

$Total = 10$

The percentage of the shaded section is:

$Shaded = \frac{2}{10} * 100\%$

$Shaded = 0.2 * 100\%$

$Shaded = 20\%$

<em>Hence, (a) and (b) shows 40%</em>

8 0

3 years ago

Read 2 more answers

PLSSS HURRY!!!!!!!!

Vikki [24]

Answer:

A) x=5 or -11

Step-by-step explanation:

The given equation is:

$(x+3)^2=64$

The most suitable method so solve this quadratic equation is the square root method.

We take square root of both sides to obtain:

$x+3=\pm \sqrt{64}$

$\implies x+3=\pm8$

$\implies x=-3\pm8$

We now split the plus or minus sign to get;

$x=-3-8\:,x=-3+8$

This simplifies to:

$x=-11\:,x=5$

The correct choice is A

6 0

3 years ago