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3 years ago

I just need help with 2 3 and 4

Mathematics

1 answer:

Akimi4 [234]3 years ago

5 0

2)Perimeter=28 rounded to 30. Area=48 rounded up to 50.

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Solve for k.<br> 2k = -7.56

Mamont248 [21]

Answer:

k= -/+3.78

Step-by-step explanation:

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8 0

3 years ago

Can someone help me with this? i'll award brainiest :D

Burka [1]

Answer:

About 79 boys i think

Step-by-step explanation:

6 0

3 years ago

The vertices of square RSTV have coordinates R(-1,5), S(-3,1), T(-7,3), and V(-5,7). What is the perimeter of RSTV?

kompoz [17]

The perimeter of square RSTV is: 17.88 units

Further explanation:

As the given figure is a square, all of its sides will be equal. So we have to find one side to find the perimeter.

Given

R(-1,5), S(-3,1), T(-7,3), and V(-5,7)

The distance formula will be used to find the side

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^@}$

Let x be one side of square

$RS=x=\sqrt{(-3-(-1))^2+(1-5)^2}\\=\sqrt{-3+1)^2+(-4)^2}\\=\sqrt(-2)^2+(-4)^2}\\=\sqrt{4+16}\\=\sqrt{20}\\=4.47$

Let P be the perimeter of square

P= 4x

P=4*4.47

=17.88 units

The perimeter of square RSTV is: 17.88 units

Keywords: Perimeter, Distance Formula

Learn more about perimeter at:

#LearnwithBrainly

6 0

3 years ago

1 = 18, W= 10. h = 2

leonid [27]

Answer:

Step-by-step explanation:

yes ,great job lxwxh

6 0

3 years ago

the difference of two numbers is negative ten. seven times the first plus seven times the second is negative fourteen.

Kaylis [27]

X-y=-10
x=-10-y

7x+7y=-14
7(-10-y)+7y=-14
-70-7y+7y=-14
0y=56
y=0

x=-10-y
x=-10-0
x=-10

I’m not 100% sure if this is right, so I hope someone checks this over :)

3 0

3 years ago