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3 years ago

–28 = 2f – 44 f = [?]

Mathematics

2 answers:

pishuonlain [190]3 years ago

7 0

-28=2f-44

-28+44=2f

16=2f

f=16÷2

f=8

joja [24]3 years ago

5 0

-28= 2f - 44
-28+44= 16
16/2=8
-28= 2•8 - 44

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Chester has a coupon for 1/10 off the price of a shirt. If the shirt originally costs $28.70, what discount would chester reciev

wolverine [178]

Answer:

Chester would receive a discount of $2.87 on using the coupon.

Step-by-step explanation:

We are given the following in the question:

Original cost of shirt = $28.70

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We have to find the discount Chester would receive from using this coupon.

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Thus, Chester would receive a discount of $2.87 on using the coupon.

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3 years ago

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3 years ago

Solve for x: x - 9 = 15 A. 6 B. 24 C. -24 D. -6

Oduvanchick [21]

Answer:

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Step-by-step explanation:

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4 0

3 years ago

Read 2 more answers

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lbvjy [14]

Step-by-step explanation:

Given bi-quadratic equation is:

$x^4+95x^2 -500=0$

Substituting $x^2=a,$ given bi-quadratic equation reduces in the form of following quadratic equation:

$a^2 +95a -500=0\\$

Let us factorize the above quadratic equation:

$a^2 +95a -500=0\\\therefore\: a^2 +100a -5a-500=0\\\therefore\: a(a +100) -5(a+100)=0\\\therefore\: (a +100)(a -5)=0\\\therefore\: (a +100)=0\:\: or \:\: (a -5)=0\\\therefore\: a = - 100\:\: or \:\: a = 5\\\\CASE\: (1)\:\\When\: a = - 100 \implies x^2 = - 100\\\therefore x=\pm \sqrt{-100}\\$

Since square root of a negative number cannot be found, so:

$x \neq \pm \sqrt{-100}\\$

$CASE\: (2)\:\\When\: a =5 \implies x^2 =5\\\therefore x=\pm \sqrt{5}\\$

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2 years ago

Did I do these two correctly?

insens350 [35]

Yes you did those two correctly

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3 years ago