3 years ago

A square and a rectangle have equal area.The rectangle is 64 cm by 81 cm. What is the perimeter of the square?

Mathematics

1 answer:

Fittoniya [83]3 years ago

6 0

Answer:

2592 cm

Step-by-step explanation:

square area = x²

rectangle area = bh

x² = bh

since the areas are equal

b and h are in the problem as 64 and 81

x² = 64x81

x² = 5184

divide by 2

x = 2592 cm

You might be interested in

Evalute the expression 36 + 5 to the power of 3

Paul [167]

68921 im not sure if this is right but please let me know thanks

5 0

2 years ago

Read 2 more answers

In forming a confidence interval for μ1 - μ2, only two assumptions are required: independent samples and sample sizes of at leas

AysviL [449]

I’m not sure but I guess it’s false

6 0

3 years ago

Select all the values for that indicate r a positive slope for the line of best fit.

zaharov [31]

Answer:

u didn't show any pictures so I can't help u. can u show. pictures or something

3 0

2 years ago

Write the quadratic equation whose roots are 3 and -1, and whose leading coefficient is 5.

Assoli18 [71]

Answer:

5x² - 10x - 15 = 0

Step-by-step explanation:

Given that the roots are x = 3 and x = - 1, then the factors are

(x - 3) and (x + 1) and the quadratic is the product of the factors, that is

f(x) = a(x - 3)(x + 1) ← a is a multiplier

Here a = 5, thus

f(x) = 5(x - 3)(x + 1) ← expand factors using FOIL

= 5(x² - 2x - 3) ← distribute parenthesis by 5

= 5x² - 10x - 15

Thus equation is

5x² - 10x - 15 = 0

6 0

3 years ago

There are 20 boys in Fred's scout troop, and 12 of them are going on the 50-mile hike. What percent of the boys are going on the

anygoal [31]

Answer:

60%

Step-by-step explanation:

12/20=0.6

0.6=60%

4 0

3 years ago

Read 2 more answers