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3 years ago

Y= 1/4x + 7 y = 1/2x + 5 The y-coordinate of the solution to the system shown is ____

2 answers:

8 0

1/4x + 7 = 1/2x + 5....u basically sub one y in for the other y
7 - 5 = 1/2x - 1/4x
2 = 2/4x - 1/4x
2 = 1/4x
2 / (1/4) = x
2 * 4/1 = x
8 = x

y = 1/4x + 7
y = 1/4(8) + 7
y = 2 + 7
y = 9 <====

Alja [10]3 years ago

7 0

Answer:

y+9

Step-by-step explanation:

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The area of the top face of a cube is 49cm^3. What is the volume of th cube?

Vlad1618 [11]

Answer:

$V=2401cm^{3}$

Step-by-step explanation:

The fact that the figure is a cube means all sides, faces, and corners are equal.

$V=BHW$

$V=49cm^{2}(W)$

$V=49cm^{2}(49cm)\\ V=2401cm^{3}$

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3 years ago

9 × 1/5 is the answer greater than or less than 9 and why

Vikentia [17]

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4 0

3 years ago

What is the rectangular form of z= 40(cos(7pi/6)+ i sin(7pi/6))

Anastaziya [24]

Answer:

C. $z = -20\sqrt{3}-i\,20$

Step-by-step explanation:

The rectangular form of a complex number is represented by the following formula:

$z = a+i\,b$ (1)

Where each coefficient can be determined as function of the polar components:

$a = r\cdot \cos \theta$ (2)

$b = r\cdot \sin \theta$ (3)

Where:

$r$ - Magnitude of the complex number, dimensionless.

$\theta$ - Direction of the complex number, measured in radians.

If we know that $r = 40$ and $\theta = \frac{7\pi}{6}$ , then the rectangular form of the number is:

$a = 40\cdot \cos \frac{7\pi}{6}$

$a = -20\sqrt{3}$

$b = 40\cdot \sin \frac{7\pi}{6}$

$b = -20$

The rectangular form of $z=40\cdot\left(\cos \frac{7\pi}{6}+i\,\sin \frac{7\pi}{6}\right)$ is $z = -20\sqrt{3}-i\,20$ . The correct answer is C.

4 0

3 years ago

Find the value of h(-67) for the function below<br> h(x)=-49x-125

inessss [21]

Answer:
h(-67) = 3158
General Formulas and Concepts:
Order of Operations: BPEMDAS
- Substitution and Evaluation
Step-by-Step Explanation:
Step 1: Define
h(x) = -49x - 125
h(-67)

Step 2: Solve
1. Substitute: h(-67) = -49(-67) - 125
2. Multiply: h(-67) = 3283 - 125
3. Subtract: h(-67) = 3158

6 0

3 years ago

Twelve pounds of beans are distributed equally into 8 bags to give out at the food bank. How many pounds of beans are in each ba

horrorfan [7]

12.0/8=15. If you at .0 to a # the amount is the same just in a different way.

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4 years ago

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