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3 years ago

X^{2} -81 find the diffrence of squares

Mathematics

1 answer:

Rasek [7]3 years ago

4 0

Answer:

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Step-by-step explanation:

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Geometry Question!!!

ANEK [815]

Step-by-step explanation:

pls explain wat I should do

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3 years ago

Solve each equation -3(n+5)=27

MrRissso [65]

Answer:

n = − 14

Step-by-step explanation:

-3(n+5)=27

-(3n+3·5)=27

-(3n+15)=27

Please mark me brainliset if this helped (I need it)

4 0

3 years ago

Read 2 more answers

If someone can solve this plss

max2010maxim [7]

Answer:

The answer is -33.

Step-by-step explanation:

To solve the given equation we will follow the PEDMAS rule.

PEDMAS stands for :

$\purple\star$ P = Parentheses
$\purple\star$ E = Exponents
$\purple\star$ M = Multiplication
$\purple\star$ D = Division
$\purple\star$ A = Addition
$\purple\star$ S = Subtraction

Solving the question by PEDMAS rule :

$\begin{gathered}{\implies{\sf{29 - \bigg\{ - 36 - \Big( - 27 - 31\Big) + 40\bigg\}}}}\end{gathered}$

$\begin{gathered}{\implies{\sf{29 - \bigg\{ - 36 - \Big( - 58\Big) + 40\bigg\}}}}\end{gathered}$

$\begin{gathered}{\implies{\sf{29 - \bigg\{ - 36 + 58 + 40\bigg\}}}}\end{gathered}$

$\begin{gathered}{\implies{\sf{29 - \bigg\{ - 36 + 98\bigg\}}}}\end{gathered}$

$\begin{gathered}{\implies{\sf{29 - \Big\{ \: 62 \: \Big\}}}}\end{gathered}$

$\begin{gathered}{\implies{\sf{29 - 62}}}\end{gathered}$

$\begin{gathered}{\implies{\sf{ - 33}}}\end{gathered}$

$\begin{gathered} \star{\underline{\boxed{\sf{\red{ - 33}}}}}\end{gathered}$

Hence, the answer is -33.

$\rule{300}{2.5}$

3 0

2 years ago

A Dr. needs to prescribe a certain medication for her patient. The amount of medicine prescribed per day is based on the weight

aniked [119]

150/2=75 75(3mg)= 225mg/day

8 0

4 years ago

The area of a rectangle is 56 cm. The length is 2cm more than x and width is 5 cm less than twice x. Solve for x. Round to the n

ra1l [238]

Area = Length * Width = l * w
l = x + 2
w = 2x - 5
Area = (x + 2)(2x - 5) = 56
Area = 2x^2 -x - 10 = 56
Area = 2x^2 - x - 66 = 0 Now you have to factor this thing.
Area = (2x + 11)( x - 6) = 0 This is more or less done by guessing.
2x + 11 = 0 can't work. x would be negative.
x - 6 = 0
x = 6.

Check
=====
l = x + 2
l = 6 + 2
l = 8

w = 2*x - 5
w = 2*6 - 5
w = 12 - 5
w = 7

l*w = 8*7 = 56. It checks.
If this is the best answer you get, could you consider a Brainly? I need 2 of them to move up.

3 0

3 years ago