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3 years ago

10

Solve the system of equations by substitution. Show all work neatly on your work page. Checking your answer is wise. :) Plz need

this for a test
3x + 2y = 7

y = -3x +11

1 answer:

vivado [14]3 years ago

7 0

Answer: x = 1

3x + 4 = 7

subtract 4 from both sides

3x = 3

x = 3/3 = 1

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Halla el volumen de un prisma con base triangular donde la base tiene 4m y la altura de la base es de 6cm,asi como la altura del

Brut [27]

Answer:

triangular donde la base tiene 4m y la altura de la base es de 6cm,asi como la altura del prisma de 10m

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2 years ago

The area of a playground is 216 yd^2. The width of the playground is 6 yd longer than its length. Find the length and width of t

zvonat [6]

Let the length of the playground be x, then the width is 6 + x.

Area = length * width = x * (6 + x) = 6x + x^2 = 216

Solving the quadratic equation x^2 + 6x - 216 = 0, we have x = 12 or -18

i.e length = 12 and width = 6 + 18 = 18

5 0

3 years ago

The data in this table represents a linear function.

Leviafan [203]

Is 1/2 an answer? That’s what I keep getting

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2 years ago

The hypotenuse of a 30o-60o-90o triangle measures 4 square 3 inches. What is the length of the shorter leg?

Fofino [41]

<u><em>Answer:</em></u>

The shorter leg is $2\sqrt{3}$ inches

<u><em>Explanation:</em></u>

The 30°-60°-90° is a special type of right-angled triangles

<u>It has the following special side length:</u>

The length of the side opposite to the 30° is $\frac{1}{2}$ the length of the hypotenuse

The length of the side opposite to the 60° is $\frac{\sqrt{3} }{2}$ of the hypotenuse

<u>Now, we know that</u> the lengths of the sides in a triangle are proportional to the angles

<u>This means that</u> the shortest side will be the one opposite to the smallest angles

In our case, the shortest side will be the one opposite to the 30° angle

We are given that the hypotenuse of the triangle is $4\sqrt{3}$ in

<u>From the above:</u>

Shorter leg = leg opposite to 30° = $\frac{1}{2} * hypotenuse = \frac{1}{2} * 4\sqrt{3} = 2\sqrt{2}$ inches

Hope this helps :)

5 0

3 years ago

Barb exercise for 14 hours in 1 week how many hour does she exercise in 32 weeks

Blizzard [7]

14 times 1 = 14

14 times 32 = 448

Barb exercised for 448 hours in 32 weeks.

8 0

3 years ago