All categories

2 years ago

10 of 10

Mathematics

2 answers:

olga nikolaevna [1]2 years ago

7 0

Answer:

456mm²

Step-by-step explanation:

using formula;

b/2( P - 2b) = A

substitute values

Fed [463]2 years ago

4 0

Let the height of the rectangle = h

2b + 2h = 100

2(38) + 2h = 100

2h = 100 - 76

h = 12mm

area of rectangle = base x height

= 38 x 12

= 456mm²

You might be interested in

Please help find the anwser to question 1 and 2

grin007 [14]

16ft and 25ft sorry if i’m wrong

4 0

2 years ago

100 POINTS!!!!!! HELP

irga5000 [103]

A - 1766! I hope this helps

7 0

3 years ago

Write the equation in standard form for the circle with center (-7,0) and radius 3√3.

mario62 [17]

Answer: $(x +7)^2 + y^2 = 27$

Step-by-step explanation:

The standard form of a circle is written as such:

$(x - h)^2 + (y - k)^2 = r^2$

Where (h, k) is the center of the circle, and r is the radius.

We know that the center is (-7, 0), so we can plug that into the equation like this: $(x +7)^2 + y^2 = r^2$

The radius is 3 * the square root of 3. To square this, we can multiply 3 squared and the square root of 3 squared:

$3^2 * \sqrt{3} ^2 = 9 * 3$

So, your standard form equation is the following:

$(x +7)^2 + y^2 = 27$

6 0

2 years ago

You are saving money to buy a used car. You deposit $2,500 in an account that earns interest compounded annually. The expression

seraphim [82]

Answer:

$r= [(\frac{A}{2500}) ^\frac{1}{2} -1]$

Step-by-step explanation:

Given data

Principal = $2500

time t= 2 years

Required

the rate r

Given the expression for the balance 2500(1+r)^2

Hence

$A= 2500(1+r)^2$

we can make r subject of formula

$r= [(\frac{A}{P}) ^\frac{1}{t} -1]$

$r= [(\frac{A}{2500}) ^\frac{1}{2} -1]$

Hence, for any value of A, we can find the rate using the expression above

6 0

2 years ago

Ratios equivalent to 1/2

Blizzard [7]

The answer is 1:2. all you have to do is add the dots for example 4/5 would be 4:5

7 0

2 years ago