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3 years ago

7

What is the solution to the system of equations that contains −3x + y = 3 and 2x − y = −1? no solution (−1, 3) infinite number o

f solutions (−2, −3)

2 answers:

irakobra [83]3 years ago

7 0

Answer:

D). (-2, -3)

x = -2 y = -3

Step-by-step explanation:

Paraphin [41]3 years ago

5 0

Answer:

A) −3x + y = 3

B) 2x − y = −1 Adding both equations:

-x = 2

x = -2 y = -3

Step-by-step explanation:

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Solve the inequality 15 ≥ q + 3

oksano4ka [1.4K]

Answer:

$q\le \:12$

Step-by-step explanation:

<u>Solving</u>

$\mathrm{Switch\:sides}$ (Not a required step)

$q+3\le \:15$

$\mathrm{Subtract\:}3\mathrm{\:from\:both\:sides}$

$q+3-3\le \:15-3\\=q\le \:12$

$\bold{q\le \:12}$

<u>Graphing</u>

5 0

2 years ago

The diameter of a circle is 14 yards. What is the circle's circumference?

yarga [219]

Answer:

The circle's circumference is equal to 14π yards.

General Formulas and Concepts:

<u>Geometry</u>

Circumference of a Circle Formula: C = πd

<em>d</em> is the diameter of the circle

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify.</em>

<em>d</em> = 14 yds

<u>Step 2: Find Circumference</u>

Substitute in variables [Circumference Formula]: C = 14π yds

Topic: Geometry

3 0

2 years ago

The surface area for a rectangular prism with a square base is SA=2s2+4sh. What is the surface area if s=3 and h=5?

Zigmanuir [339]

Answer:

The surface area is 78 unit square.

Step-by-step explanation:

Given : The surface area for a rectangular prism with a square base is $SA=2s^2+4sh$ .

To find : What is the surface area if s=3 and h=5?

Solution :

The surface area for a rectangular prism with a square base is $SA=2s^2+4sh$

Substitute, s=3 and h=5

$SA=2(3)^2+4(3)(5)$

$SA=2\times 9+4\times 15$

$SA=18+60$

$SA=78$

Therefore, The surface area is 78 unit square.

7 0

3 years ago

Daniel bought 2 boards of wood for a school project. one board is 24 inches long, and the other board is 20 inches long. he want

lisov135 [29]

Answer:

48 inches (i tried)

3 0

2 years ago

Please help me if you can

IRISSAK [1]

Answer:

8π in

64π mm²

Step-by-step explanation:

The circumference of a circle is equal to 2πr, where r is the radius.

2π(4) = 8π ≈ 25.132

The area of a circle is equal to πr²

π(8)² = 64π ≈ 201.062

8 0

3 years ago