Answer:
Error: Sariah treated every term as though it were an x-term. 5 and -4.5 are constants that cannot be combined with the x-terms. They can only be combined with each other.
Correct solution: 31x + 0.5
Strategy: Pay attention to the variables.
Step-by-step explanation:
In her first step, it appears Sariah added 13x and 5 to get 18x. These terms are not <em>like terms</em>, so cannot be added in this way. An appropriate strategy is to first identify all the terms with the same <em>variables</em> (x in this case), then add their <em>coefficients</em>.
... = x(13 +17 +1) +5 -4.5
Likewise, all the <em>constant</em> terms can be added.
... = 31x +(5 -4.5)
... = 31x + 0.5
Descriptive language is vivid and specific, and helps someone imagine a scene he didn't witness. ... The word descriptive comes from the Latin descript-, meaning "written down." Something that is descriptive uses an account of words to give us a sense of what it's like.
The area wiped by the viper blade is approximately 486.7 square inches.
The area wiped by the wiper blade (
), in square inches, is equal to the area of the circular section described below:
(1)
Where:
- Angle, in sexagesimal degrees. 
- Inner radius, in inches.
- Outer radius, in inches.
If we know that 
, 
and 
, then the area wiped by the wiper blade is:
![A = \frac{130\pi}{360} \cdot [(25\,in)^{2}-(14\,in)^{2}]](https://tex.z-dn.net/?f=A%20%3D%20%5Cfrac%7B130%5Cpi%7D%7B360%7D%20%5Ccdot%20%5B%2825%5C%2Cin%29%5E%7B2%7D-%2814%5C%2Cin%29%5E%7B2%7D%5D)
The area wiped by the viper blade is approximately 486.7 square inches.
We kindly invite to check this question on circular sections: brainly.com/question/14989543
Answer:
m=17
Step-by-step explanation:
$15 minus $0.14(# minutes) = $12.62
15 - .14m = 12.62
.14m = 15 - 12.62
.14m = 2.38
m = 2.38/.14
m = 17 minutes
Answer:
m∠ABC = m∠BED; Corresponding Angles Theorem
Step-by-step explanation:
<u>Given:</u> line BC is parallel to line ED m∠ABC = 70° m∠CED = 30°
<u>Prove:</u> m∠BEC = 40°
Statement Justification
1. line BC is parallel to line ED - Given
2. m∠ABC = 70° - Given
3. m∠CED = 30° - Given
4. m∠BEC + m∠CED = m∠BED - Angle Addition Postulate
5. m∠ABC = m∠BED - Corresponding Angles Theorem
6. m∠BEC + 30° = 70° - Substitution Property of Equality
7. m∠BEC = 40° Subtraction Property of Equality
