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3 years ago

A is what percent of B?d)A = 8 oz, B = 1.5 lb Plz help need by today

Mathematics

1 answer:

creativ13 [48]3 years ago

8 0

Answer:

33% Decimal form: .333333 repeating.

Step-by-step explanation:

Took test. I see the question you was trying to do.

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A new roll of wrapping paper has 658 yards of paper. drew used 216 yards from the roll to wrap a gift. which equation most close

igor_vitrenko [27]

658-216=442
There should be 442 yards of wrapping paper left on the roll.

3 0

3 years ago

If a = √3-√11 and b = 1 /a, then find a² - b²

Serga [27]

If $b=\frac1a$ , then by rationalizing the denominator we can rewrite

$b = \dfrac1{\sqrt3-\sqrt{11}} \times \dfrac{\sqrt3+\sqrt{11}}{\sqrt3+\sqrt{11}} = \dfrac{\sqrt3+\sqrt{11}}{\left(\sqrt3\right)^2-\left(\sqrt{11}\right)^2} = -\dfrac{\sqrt3+\sqrt{11}}8$

Now,

$a^2 - b^2 = (a-b) (a+b)$

and

$a - b = \sqrt3 - \sqrt{11} + \dfrac{\sqrt3 + \sqrt{11}}8 = \dfrac{9\sqrt3 - 7\sqrt{11}}8$

$a + b = \sqrt3 - \sqrt{11} - \dfrac{\sqrt3 + \sqrt{11}}8 = \dfrac{7\sqrt3 - 9\sqrt{11}}8$

$\implies a^2 - b^2 = \dfrac{\left(9\sqrt3 - 7\sqrt{11}\right) \left(7\sqrt3 - 9\sqrt{11}\right)}{64} = \boxed{\dfrac{441 - 65\sqrt{33}}{32}}$

5 0

1 year ago

A parallelogram has coordinates of (5, 17), (10, 20), (18, 9), and (13, 6). Which right triangle represents one of the cutouts f

blagie [28]

Image for option 3 is the right answer

5 0

3 years ago

Read 2 more answers

Please help 10points!!!!!!!!

Helga [31]

Answer:

the coifficent is 4/3

Step-by-step explanation:

hope this helps :)

5 0

3 years ago

Read 2 more answers

What is the value of x that will make each of the two ratios proportional?

PilotLPTM [1.2K]

Answer:

a=7, b=14

Step-by-step explanation:

a. 2/6=x/21

cross multiply=

2×21=x×6

then solve

42=6x

divide both sides by 6

x=42/6=7

b. 150/84=25/x

cross multiply=

84×25=150×x

then solve

2100=150x

divide both sides by 150

x=2100/150=14

 HOPE THIS HELPS. 

7 0

1 year ago