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VikaD [51]
3 years ago
5

Combine like terms to simplify the expression: -4 + 7 − 2x + 10x = ______

Mathematics
2 answers:
exis [7]3 years ago
8 0

Answer:

3 + 8x

Step-by-step explanation:

kakasveta [241]3 years ago
7 0

Answer:

-4+7-12x

Step-by-step explanation:

add the 2x and 10x becuz there the like terms

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6 0
3 years ago
This right triangle has one leg with a length of 45 units and a hypotenuse with a length of 75 units. What is the length of the
Nesterboy [21]

The length of other leg is 60 units.

Step-by-step explanation:

Given,

Length of one leg = a = 45 units

Length of other leg = b

Length of hypotenuse = c = 75 units

Using pythagoras theorem

a^2+b^2=c^2\\(45)^2+b^2=(75)^2\\2025+b^2=5625\\b^2=5625-2025\\b^2=3600

Taking square root on both sides

\sqrt{b^2}=\sqrt{3600}\\b=60\ units

The length of other leg is 60 units.

Keywords: Pythagorean theorem, square root

Learn more about square root at:

  • brainly.com/question/12892007
  • brainly.com/question/12905000

#LearnwithBrainly

4 0
3 years ago
Convert from Decimal Notation to Scientific Notation
Bingel [31]

Answer:

Hence, 0.0000087 can be expressed as $8.71 \times 10^{-6}$.

Step-by-step explanation:

- Given 0.00000871

- Move the decimal point so that the factor is greater than or equal to 1 but less than 10 .

- Then count n and write no. as product with a power of 10 .

Step 1 of 1

Consider 0.00000871,

8.71

Decimal has moved 6 places to right.

The power will be negative as the original no. is less than 1 .

$$\begin{array}{r}8.71 \times 10^{-6} \\0.0000087=8.71 \times 10^{-6}\end{array}$$

3 0
2 years ago
The length of an object in feet is equal to 3 times it's length in yards.
qwelly [4]

Answer:

12

Step-by-step explanation:

3 times X is equal to 36.

X is the number were going to solve for, and since you need 3 groups of 12 to solve for 36, it would be 12.

5 0
3 years ago
Evaluate the expression a/b for a = 80 and b = 8.
tangare [24]

A / B

= 80 / 8

= 10

Therefore the answer is 10

7 0
3 years ago
Read 2 more answers
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