2 years ago

Can someone help me x^2 + 3 - 6(3x + 4) i will give brainliest

Mathematics

1 answer:

dangina [55]2 years ago

8 0

Answer:

${x}^{2} - 18x - 21$

Step-by-step explanation:

${x}^{2} + 3 - 6(3x + 4)$

${x}^{2} + 3 - 18x - 24$

${x}^{2} - 21 - 18x$

$\boxed{\green{= {x}^{2} - 18x - 21}}$

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Is this the correct ?<br> i’ll mark brainliest

bogdanovich [222]

Answer:

No, because you forgot to switch the sign when dividing by a negative number. Its the 2nd one

Step-by-step explanation:

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3 years ago

Whoever answers this question correctly will get the brainliest. what is 5x+9 if x=12

nataly862011 [7]

5 times 12 =60
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4 0

3 years ago

Read 2 more answers

1 litre is approximately 1.75 pints, 1 gallon = 8 pints, calculate the approcimate number of gallons that are equal to 48000cm3

Umnica [9.8K]

Answer:

$10.5\ gal$

Step-by-step explanation:

we know that

$1,000\ cm^{3} =1\ l$

$1\ l=1.75\ pints$

$1\ gal=8\ pints$

we have

$48,000\ cm^{3}$

step 1

Convert to liters

$48,000\ cm^{3}=48,000/1,000=48\ l$

step 2

Convert to pints

$48\ l=48*1.75=84\ pints$

step 3

Convert to gallons

$84\ pints=84/8=10.5\ gal$

7 0

3 years ago

A cuboid, with dimensions 28cm by 16cm by 15cm, has a volume of 6720cm cube. The cuboid is melted to form smaller cubes of lengt

Dovator [93]

Answer:

Vol of the cube =Vol of cubiod

Vol of each smaller cube =s×s×s= 4×4×4=64

Vol of cuboid /Vol of each smaller cube = no of cubes that can be obtained

6720/64= 105

Hence 105 cubes can be obtained

3 0

3 years ago

Evaluate∣2x+7∣ for x=-4

yanalaym [24]

∣2x+7∣ for x=-4

Use the substitution method

∣2*-4+7∣

Mutiply first then add +7

∣2*-4∣= -8

∣-8+7∣= -1

Whenever there is a negative number for absolute value , the number becomes a + positive number.

∣-1∣= 1

Answer:

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2 years ago