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3 years ago

What number is exactly divisible by 9

Mathematics

2 answers:

yaroslaw [1]3 years ago

8 0

9, 18, 27....basically anything that is multiplied by 9

butalik [34]3 years ago

7 0

45, 90, 27, are all numbers dividible by 9

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Which shows how to rewrite 4 x 47 using the Distributive Property?

mash [69]

Answer:

Step-by-step explanation:

Something that is 17 more than r means that it is r + 17.

Therefore, the answer is C, r + 17.

Hope that helps!

-Sabrina

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3 years ago

If Taylor has 2 times as many nickels as quarters and they have a combined value of 245 cents, how many of each coin does he hav

Goryan [66]

Answer:

Taylor has 14 Nickels and 7 Quarters

Step-by-step explanation:

A nickel is equivalent to 5 cent while a quarter is equivalent to 25 cents.

If the number of nickels Taylor has is 2x then the number of quarters is x

Given that the total value is 245 cents,

5(2x) + 25x = 245

10x + 25x = 245

35x = 245

x = 7, 2x = 2 × 7 = 14

It means Taylor has 14 Nickels and 7 Quarters

5 0

3 years ago

What is cos theta when sin theta = sqrt 2/3

Fittoniya [83]

Answer:

Value of cosθ is ±√7/3 .

Step-by-step explanation:

According to the Question , value of :

$\red{\implies sin\theta = \dfrac{\sqrt2}{3}}$

And , we know the identity of sine and cosine as ,

$\boxed{\pink{\sf\implies sin^2\theta + cos^2\theta = 1} }$

Using , this identity we have ;

$\implies sin^2\theta + cos^2\theta = 1 \\\\\implies \bigg( \dfrac{\sqrt2}{3}\bigg)^2 + cos^2\theta = 1 \\\\\implies \dfrac{2}{9} + cos^2\theta = 1 \\\\\implies cos^2\theta = 1 - \dfrac{2}{9} \\\\\implies cos^2\theta = \dfrac{9-2}{9} \\\\\implies cos\theta = \sqrt{\dfrac{7}{9}} \\\\\underline{\boxed{\blue{\bf \implies cos\theta = \pm \dfrac{\sqrt 7 }{3}}}}$

Now , here since θ is in 2nd quadrant and in 2nd quadrant cos is negative . Hence ,the value of cos will be :

$\boxed{\orange{\bf \implies cos\theta =-\dfrac{\sqrt7}{3}}}$

3 0

2 years ago

When 27 times x squared times z all over negative 3 times x squared times z to the sixth power is completely simplified, the exp

marysya [2.9K]

Answer:

-5 or 5 depending on how you write the simplified form

Step-by-step explanation:

$\dfrac{27x^2z}{3x^2z^6}=9x^{2-2}z^{1-6}\\\\\boxed{=9z^{-5}=\dfrac{9}{z^5}}$

The applicable rules of exponents are ...

(a^b)(a^c) = a^(b+c)

1/a^b = a^-b

Some folks like their simplified form to contain only positive exponents. Other folks avoid unnecessary fractions. Choose the form that satisfies your grader.

4 0

3 years ago

Cost of a comic book: 3.95 Markup: 20%

Ghella [55]

The cost would be $4.74. 3.95 times 0.2 is 0.79. Add that to 3.95 and get 4.47

4 0

3 years ago