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3 years ago

How do you spell the number 2

Mathematics

1 answer:

arlik [135]3 years ago

8 0

Answer:

T W O

Step-by-step explanation:

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∠5 and ∠6 are complementary angles. m∠5=13° What is the measure of ∠6 ?

loris [4]

Answer:

the measure of <6 is 77 degrees

x + 13 = 90

x = 77

Step-by-step explanation:

4 0

3 years ago

The perimeter of a rectangle is 42 inches, and its area is 110 square inches. find the length and width of the rectangle.

lorasvet [3.4K]

$p = 2w + 2l$ $p = 42$
$a = l * w$ $a = 108$

You want to make either the length or width variable (I chose the width variable to be by itself. It doesn't matter) by itself by:

Divide both sides by 2.
(p) ÷ 2 = (2w + 2l) ÷ 2
$2's$ $cancel$ $out$
$\frac{p}{2} = w + l$

Subtract both sides by either length or width depending on what variable you chose to make by itself (in this case I subtracted the length variable because I wanted the width variable by itself).
$\frac{p}{2} - l = w + l - l$
$l's$ $cancel$ $out$
p/2 - l = w

$a = l * w$

You replace w with the equation above p/2 - l = w
$a = l( \frac{p}{2} - l)$

Multiply out the L.
$a = \frac{p}{2}l - l^{2}$

Plug in all your numbers a = 110 and p = 42
$110 = \frac{42}{2}l - l^{2}$
$110 = 21l - l^{2$

Move everything to the left side so $l^{2}$ would be positive (makes the equation easier when $l^{2}$ is positive).
$l^{2} - 21l + 110 = 0$

Factor.
$(l -10)(l-11) = 0$

Make each parenthesis set equal to 0.
$l-11=0$ $l-10=0$

Add.
$l = 11$ $l = 10$

By doing this you solve for both the width and length so the answer is:
w = 11 L = 10

8 0

3 years ago

Evaluate for x=4 and y=-3 write in simplest form 2y/x2

lorasvet [3.4K]

Hello from MrBillDoesMath!

Answer:

I think your formula (2y/x2) is equivalent to

(2*y)/(x^2) where x^2 means x-squared.

If so, then

(2*y)/(x^2) = (2*3)/(4*4) = 6/16 = 3/8

Thank you,

MrB

7 0

3 years ago

I am greater than 1/3 but less than 1. My numerator and denominator have a difference of 5 and a product of 24. Who am I?

grandymaker [24]

Answer:

Step-by-step explanation:

5/8

5 0

3 years ago

36% of what number is 18?

pantera1 [17]

Say 36% of 100 is 36. so knowing half of 36 is 18, take half of 100, 50.

so 18/50 = 36

The answer is 50.

3 0

4 years ago