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Dima020 [189]
3 years ago
15

What is the precision measurement of 80 inches?

Mathematics
1 answer:
lawyer [7]3 years ago
3 0
The precision is 10 inches. This is because the 0 at the end of the number is not considered a significant digit in the form in which the number is written, and hence "80 inches" is to be considered a roundoff from a number which can be from 75-85 inches.
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Jared is 10 years old, and Peter is 15 years old. Together, they run 150 yards. How far does each brother run. if a brother is t
Andreas93 [3]
Jared can run 75 yards and Peter can run 125 yards
8 0
3 years ago
Progress:
JulsSmile [24]

Answer:

Option (1)

Step-by-step explanation:

Given inequality is.

4x + 5 ≥ 13

We will further solve this inequality,

(4x + 5) - 5 ≥ 13 - 5

4x ≥ 8

\frac{4x}{4}\geq \frac{8}{4}

x ≥ 2

Therefore, on a number line solution of x will be all values of x greater than equal to 2.

Which will be represented by and arrow starting with a solid point from x = 2 directing towards numbers greater than 2.

Option (1) will be the answer.

4 0
3 years ago
What is the factored form of x2 − 4x − 5?
laiz [17]
Factored Form:
x^2 - 4x - 5
Simplifying:
x^2 +  - 4x +  - 5 = 0

Reorder the terms:
- 5 +  - 4x + x^2 = 0

Solving for variable " x":
Subproblem 1:
Set the factor ( - 1 +  - 1x) equal to Zero and attempt to solve.

Simplifying:
- 1 +  - 1x = 0

Solving:
- 1 +  - 1x = 0
Move all terms containing x to the left, all other terms to the right

Add 1 to each side of equation:
- 1 + 1 +  - 1x = 0 + 1

Combine Like Terms: 0 + 1 = 1
x =  - 1


Divide each side by - 1
x =  - 1

Simplifying:  x =  -  1


Subproblem 2: Set the factor (5 +  -  1x) equal to Zero attempt to solve

Simplifying:
5 +  - 1x = 0

Move all terms containing x to the left, all other terms to the right
Add - 5 to each side of the equation
5 +  - 5  +  - 1x = 0 + 5

Combine Like terms:  5 +  - 5 = 0
0 +  - 1x = 0 +  - 5
- 1x = 0 +  - 5

Combine Like Terms: 0 +  - 5 = - 5
- 1x =  - 5

Divide each side by - 1
x = 5

Simplifying:
x = 5

Solution:
x = { - 1,  5}





Answer when factored:
(x + 1)(x - 5)







hope that helps!!!
4 0
3 years ago
Read 2 more answers
SImplify to standard form (a+bi)<br> (12-9i)²
olga2289 [7]

Answer:

Hello,

Step-by-step explanation:

<u />

<u>Formula used (a+b)^2=a²+2ab+b²</u>

(12-9i)^2=3^2*(4-3i)^2\\\\=9*(16-9-24i)\\\\=9*(7-24i)\\\\=63-216i\\

5 0
3 years ago
Jade wants to build a raised garden bed in her backyard. The garden measures 9 feet in length by 6 feet in width by 4 feet in de
e-lub [12.9K]

Answer:

$864

Step-by-step explanation:

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