3 years ago

How would I simplify 7 - 2 (3 - 8x)

Mathematics

1 answer:

Alenkasestr [34]3 years ago

6 0

7 - 2 (3 - 8x)

7 - 6 + 16x

1 + 16x

Nothing further can be simplified.

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A “stick” object of height 10 cm is standing in front of a point X–ray source at a distance of 50 cm from the source. The detect

blagie [28]

Answer:

40 cm.

Step-by-step explanation:

Given,

height of the object = 10 cm

Distance of the object from the X-ray= 50 cm

Distance of detector from the source = 2 m = 200 cm

Height of the image, h = ?

Now,

$\tan \theta = \frac{P}{B}$

$\tan \theta = \frac{10}{50}$

$\tan \theta = \frac{1}{5}$

Again applying

$\tan \theta = \frac{P}{B}$

$\frac{1}{5} = \frac{h}{200}$

h = 40 cm

Hence, height of the image is equal to 40 cm.

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3 years ago

Escribe el número que tenga el mismo valor que 28 decenas

adoni [48]

Answer:

280

Step-by-step explanation:

The question in English is

Write the number that has the same value as 28 tens

we know that

One tens is equal to the number 10

To find out the value of 28 tens, multiply the number 28 by 10

$28(10)=280$

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3 years ago

What is the unit value of the 6 in 216?

eduard

The 6 is in the ones place the 1 is in the tens place and the 2 is in the hundreds place.

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3 years ago

Which number is the greatest? O 5.1 x 10^6 O 6.55 X 10^5 O 4.75 X 10^6 O 9 X 10^5

Ber [7]

5.1x10^6 is the greatest because when u multiply it, it is 5 million

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2 years ago

True or false variable is a letter used in place of a number

VikaD [51]

Answer: TRUE!

Variables ARE letters used in place of numbers absolutely

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3 years ago