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3 years ago

I trying to simplify ( 14+5) +15÷2 PLEASE HELP this is a 5th grade math question

Mathematics

1 answer:

sertanlavr [38]3 years ago

6 0

Answer:

14+5 = 19

19 + 15/2

15/2 = 7.5

19+7.5 = 26.5

Just remember PEMDAS!

Pls mark brainliest

Step-by-step explanation:

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If f(x) = x* and g(x) = 3+8x?, find g(f(x)).

zhuklara [117]

g(8x-3)=x

have a good day

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2 years ago

A cuboid with a volume of 924cm^3 has dimensions 4cm, (x+1)cm and (x+11). Show clearly that x^2+12x-220=0 solve the equation by

garik1379 [7]

Answer:

$x^2+12x-220=0$ -- Proved

$x = 10\ \ \ x = -22$

Step-by-step explanation:

Given

$Volume = 924cm^3$

$Dimension: 4cm; (x+1)cm; (x+11)cm$

Required

Show that $x^2+12x-220=0$

The volume is calculated as:

$4 * (x + 1) * (x + 11) = 924$

Open the brackets

$(4x + 4) * (x + 11) = 924$

$4x^2 + 44x + 4x + 44 = 924$

$4x^2 + 48x+ 44 = 924$

Collect Like Terms

$4x^2 + 48x+ 44 - 924=0$

$4x^2 + 48x -880=0$

Divide through by 4

$\frac{4x^2}{4} + \frac{48x}{4} -\frac{880}{4}=0$

$x^2+12x-220=0$

Solving further:

Expand the expression

$x^2 + 22x - 10x - 220 = 0$

Factorize:

$x(x + 22) - 10(x + 22) = 0$

$(x - 10)(x + 22) = 0$

Split:

$x - 10 = 0;\ \ \ x + 22 = 0$

$x = 10\ \ \ x = -22$

5 0

2 years ago

Please help!! Will give brainliest

hichkok12 [17]

Answer:

HELLO! im confused do u want us to answer all of them:D?

Step-by-step explanation:

????

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3 years ago

How many and what type of solution(s) does the equation have?

zzz [600]

Answer:

2 irrational solutions.

Step-by-step explanation:

6p^2 = 8p + 3

0 = -6p^2 + 8p + 3

The roots are:

p = (2/3) - (8.5)^(1/2)/3, and

p = (2/3) + (8.5)^(1/2)/3

These are irrational numbers.

There are 2 irrational solutions.

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2 years ago

What Is the property of (6 +56) + 5 = (56 + 6) + 5

pishuonlain [190]

I'm positive the property is commutative property because you only switched the position of the numbers and got the same outcome.

5 0

3 years ago