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soldi70 [24.7K]

3 years ago

14

The upper-left coordinates on a rectangle are (-1,4), and the upper-right coordinates are (3,4). The rectangle has a perimeter o

f 24 units.

1 answer:

brilliants [131]3 years ago

3 0

Answer:

The area would be 32

Step-by-step explanation:

Let's call the side lengths a and b, so then therefore a + b = 12

after this, we know that the length of a is 4, from the distance formula, and so the length of b is 8, so the area is 4*8 which is 32

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A polygon with both equal angles and equal sides is called

velikii [3]

Answer:

It's called a regular polygon

5 0

3 years ago

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How many blocks are needed for the 5th example?

JulsSmile [24]

Answer:

5th example: 28 blocks.

24th example: 123 blocks.

Step-by-step explanation:

Hope this helped!

7 0

2 years ago

Given that x = -2 - 3i and y = 4 + 2i , Match The Expressions.

shtirl [24]

Answer:

$3y-2x=16+12i$

$-3x \cdot y=6+48i$

$x \cdot 2y=-4-32i$

$x-y=-6-5i$

Step-by-step explanation:

Given:

$x=-2-3i$

$y=4+2i$

---

1st problem:

$3y-2x$

$3(4+2i)-2(-2-3i)$

Distribute:

$12+6i+4+6i$

Combine like terms:

$16+12i$

---

2nd problem:

$-3x \cdot y$

$-3(-2-3i) cdot (4+2i)$

$-3(-2-3i)(4+2i)$

Distribute -3 to first factor:

$(6+9i)(4+2i)$

Use foil to simplify:

$24+12i+36i+18i^2$

Replace $i^2$ with -1:

$24+48i-18$

Combine like terms:

$6+48i$

---

3rd problem:

$x \cdot 2y$

$(-2-3i) \cdot 2(4+2i)$

Distribute 2 to the second factor:

$(-2-3i) \cdot (8+4i)$

$(-2-3i)(8+4i)$

Use foil to simplify:

$-16-8i-24i-12i^2$

Replace $i^2$ with -1:

$-16-32i+12$

Combine like terms:

$-4-32i$

----

4th problem:

$(-2-3i)-(4+2i)$

Distribute:

$-2-3i-4-2i$

Combine like terms:

$-2-4-3i-2i$

Simplify:

$-6-5i$

6 0

3 years ago

Read 2 more answers

Solve the following system. x 2 - y = 3 x - y = -3 The solution set

Tpy6a [65]

Hello :
<span>x²- y = 3 ...(1)
x - y = -3 ...(2)
by (2) : y = x+3
subqct in (1) : x²-x-3 = 3
x²-x-6 =0
(x+2)(x-3) = 0
x+2 =0 or x-3 =0
x=-2 or x=3
if x = -2 y = -2+3 = 1
if x=3 y =3+3 = 6
two solutions : ( -2, 1) , (3,6)</span>

8 0

3 years ago

I don't get it someone help

almond37 [142]

All the quadrilaterals mentioned have their opposite side parallel, but only 2 DON'T have their diagonal perpendicular: Parallelogram and rectangles.Hence the answer is B AND D

3 0

3 years ago