MATHEMATICS MIDDLE SCHOOL

on a coordinate plane, the vertices of a rectangle are (-1, 1), (3, 1), (-1, -4), and (3, -4). what is the perimeter of the rectangle

Answers

Answer 1

Answer:

Answer:

18 unit

Step-by-step explanation:

By plotting the given points on the coordinate plane ( shown below )

We get a rectangle.

Suppose ABCD is a rectangle such that,

A≡(-1,1), B≡(3,1), D≡(3,-4) and C≡(-1,-4),

By the distance formula,

$AB=√((3-(-1))^2+(1-1)^2)=√((3+1)^2+0)=√(4^2)=4\text{ unit}$

$BC=√((3-3)^2+(-4-1)^2)=√(0+5^2)=√(5^2)=5\text{ unit}$

∵ Perimeter of a rectangle = 2 ( sum of any two adjacent sides )

Thus, the perimeter of the rectangle ABCD = 2(AB + BC)

= 2(4+5)

= 2(9)

= 18 unit

Answer 2

Answer: The perimeter is 18.....i hope i helped you

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In a fifth grade class 4/5 of the girls have brown hair 3/4 of them have Long hair what fraction have Long brown hair

Answers

Answer:

$(3)/(5)$

Step-by-step explanation:

We have that,

Fraction of girls having brown hair = $(4)/(5)$

Fraction of girls having long hair = $(4)/(5)$

Thus, the fraction of girls having long brown hair = Fraction having brown hair × Fraction having long hair

i.e. Fraction of girls having long brown hair = $(4)/(5)* (4)/(5)$

i.e. Fraction of girls having long brown hair = $(3)/(5)$

Hence, the fraction of girls having long brown hair is $(3)/(5)$ .

ANSWER: 12/20 or 3/5

4/5 of girls have brown hair
3/4 have long hair

$(4)/(5) * (3)/(4) = (12)/(20)$
$(12)/(20) / (4)/(4) = (3)/(5)$

Plssss help me as soon as possible ASAP

Answers

the lower is 78
hope this helps

Evaluate each function rule. Find y for x=0, 1, 2, and 3. Construct a function table for each problem.y=3x+1

Answers

sub x values for x
0,1,2
y=3(0)+1=1
y=3(1)+1=4
y=3(2)+1=7
y=3(3)+1=10

table

x=0,1,2,3
y=1,4,7,10

Of the students in Rosales dance class 29 out of 58 have participated in dance class before. about how many of her students have participated in dance class before?A.0
B.1/2
C.1
D.2

Answers

Answer:

0.5 or 1/2

Step-by-step explanation:

The answer is 0.5 or one half, because you are trying to figure out the amount of other students who have participated. So we know that 29 out of 58 participated, so you just do 29/58 and you get 1/2.

Hope this helps, have a good day. c;

What are some ratios equivalent to 15:18?