3 years ago

Evaluate the expression. 621+5) - 3

Mathematics

1 answer:

Gennadij [26K]3 years ago

8 0

Answer:

I think its 623

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A bottle of perfume holds 0.55 onice. A bottle of cologne holds p.2 ounce. How many more ounces dose the bottle of perfume hold?

zimovet [89]

It has .33 more ounces if that says .2

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2 years ago

A = √7 + √c and b = √63 + √d where c and d are positive integers.

mrs_skeptik [129]

Answer:

$\displaystyle a:b=\frac{1}{3}$

Step-by-step explanation:

<u>Ratios </u>

We are given the following relations:

$a=\sqrt{7}+\sqrt{c}\qquad \qquad[1]$

$b=\sqrt{63}+\sqrt{d}\qquad \qquad[2]$

$\displaystyle \frac{c}{d}=\frac{1}{9} \qquad \qquad [3]$

From [3]:

$9c=d$

Replacing into [2]:

$b=\sqrt{63}+\sqrt{9c}$

We can express 63=9*7:

$b=\sqrt{9*7}+\sqrt{9c}$

Taking the square root of 9:

$b=3\sqrt{7}+3\sqrt{c}$

Factoring:

$b=3(\sqrt{7}+\sqrt{c})$

Find the ration a:b:

$\displaystyle a:b=\frac{\sqrt{7}+\sqrt{c}}{3(\sqrt{7}+\sqrt{c})}$

Simplifying:

$\boxed{a:b=\frac{1}{3}}$

3 0

3 years ago

Becky orders pens from an office supply company. The table shows how many pens have black ink based on the total number of pens

dedylja [7]

Answer:

Step-by-step explanation:

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2 years ago

Find a polynomial function that has the given zeros. (there are many correct answers.) −9, 5

Artist 52 [7]

$(x + 9)(x - 5) = {x}^{2} + 4x - 45$

8 0

3 years ago

Find the square root of 256 an cube root of 729

bekas [8.4K]

Answer:

i)16

ii)9

Step-by-step explanation:

$\sqrt{256} \\=\sqrt{16*16} \\=16\\\\ii)\ \sqrt[3]{729}\\ =\sqrt[3]{9*9*9} \\=9$

6 0

3 years ago