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3 years ago

Factorise fully -X – 10 Pls help

Mathematics

1 answer:

Nataly_w [17]3 years ago

3 0

Answer:

-X – 10=-1(x+10) is your answer

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What is 15.74 rounded to the nearest whole number

Lera25 [3.4K]

Answer:

Step-by-step explanation:

7 is higher than 4 so you round up one

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4 years ago

This is the question...plz hurry..thx

svetlana [45]

Answer:

20x-21y+14

Step-by-step explanation:

1/5(100x-105y+70)

20x-21y+14

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3 years ago

Solve: 12^x2+5x-4 =12^2x+6

lyudmila [28]

Answer:

x=2, x=-5

Step-by-step explanation:

to work more comfortably, the first thing we need to do is work the equation linearly, for that we take advantage of the property of logarithms that tells me that $log(a^{b})=b*log(a)$

in this way, the equation remains as:

$log(12^{x^{2} +5x-4 } )=log(12^{5x+6} ) \\ (x^{2} +5x-4 )*log(12)=(5x+6) *log(12)\\x^{2} +5x-4 = 5x+6$

Now we clear the equation so that it is of the form $ax^{2} +bx+c=0$

$x^{2} +5x-2x=6+4\\ x^{2} +3x-10=0$

finally, we apply the equation to solve second degree equations

$x = \frac{-b \pm \sqrt {b^2-4ac}}{2a}$

$x = \frac{-3 \pm \sqrt {3^2-4*1*(-10)}}{2*1}\\ x = \frac{-3 \pm \sqrt {9+40}}{2}\\ x = \frac{-3 \pm 7}{2}$

x=2 and x=-5

Done

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4 years ago

Round the value of x to the nearest tenth

Marysya12 [62]

Answer:

x would equal x

Step-by-step explanation:

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3 years ago

What is the value of 2/3 to the power of -4

N76 [4]

Answer:

162

Step-by-step explanation:

2/3(3^(-4)) is the way you would work out the sum

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3 years ago