4 years ago

Please help me with this and thank you

Mathematics

1 answer:

dimaraw [331]4 years ago

6 0

Answer:c

Step-by-step explanation:

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Jennifer wants to buy a new television set that regularly sells for $900. Because she works at the store, Jennifer will receive

elena-14-01-66 [18.8K]

Answer:

$667.80

Step-by-step explanation:

30% of 900 is 270, so the price of the TV would be 630 without the tax. 6% of 630 is 37.8, so in total, the price would be $667.80

4 0

3 years ago

Apply the properties of integer exponents to identify all of the expressions equivalent to 1/8.

Alborosie

Answer:

The answers are A , C , D

Step-by-step explanation:

Lets revise the rule of exponent

* $a^{n}*a^{m}=a^{m+n}$

* $\frac{a^{m}}{a^{n}}=a^{m-n}$

* $\frac{1}{a^{-m}}=a^{m}$

* $(\frac{a}{b})^{-m}=(\frac{b}{b})^{m}$

Now lets solve the problem

We need all the expressions equivalent to $\frac{1}{8}$

∵ $2^{-3}=\frac{1}{2^{3}}$

∵ 2³ = 8

∴ $2^{-3}=\frac{1}{8}$

Answer A is equivalent to $\frac{1}{8}$

∵ 2³ = 8

Answer B is not equivalent to $\frac{1}{8}$

∵ 2³ = 8

∴ $\frac{1}{2^{3}}=\frac{1}{8}$

Answer C is equivalent to $\frac{1}{8}$

∵ $2^{2}*2^{-5}=2^{2+-5}=2^{-3}$

∵ $2^{-3}=\frac{1}{2^{3}}=\frac{1}{8}$

Answer D is equivalent to $\frac{1}{8}$

∵ $2^{-2}*2^{5}=2^{-2+5}=2^{3}$

∵ 2³ = 8

Answer E is not equivalent to $\frac{1}{8}$

<em>The answers are A , C , D</em>

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4 years ago

Find the standard form of equation of the parabola and the vertex at the origin<br> focus -2,0

valina [46]

Y=1/4x^2

do you mean like thisssss

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4 years ago

Use rounding or compatible numbers to estimate the sum 790+112

kifflom [539]

The answer would round to 900<span />

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3 years ago

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In football, a field goal is kicked from a position on the field

77julia77 [94]

Answer:

144 ft. i just had this question on my test .

Step-by-step explanation:

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3 years ago