4 Give your answer correct to 1 decimal place.
7 cm
1
6 cm
B
5 cm
9514 1404 393
Answer:
10.5 cm
Step-by-step explanation:
The length of the space diagonal is the root of the sum of the squares of length, width, and height.
AB = √(5² +6² +7²) cm = √110 cm ≈ 10.488 cm
AB ≈ 10.5 cm
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The space diagonal is the hypotenuse of the right triangle consisting of an edge (L) and the face diagonal of the face perpendicular to that edge. Of course that face diagonal is the root of the sum of squares of the orthogonal edges: √(W² +H²). So, the space diagonal is ...
AB = √(L² +(√(W² +H²))²) = √(L² +W² +H²)
PLEASE HELP I DONT WANT TO FAIL SUMMER SCHOOL
Answer:
hope this will help you more
In order to prove the sentence 2/5 + 4/10, a partitioned model could be used. Here, 2/5 equates to 4 out of 10 parts and 4/10 equates to 4 out of 10 parts. Adding these provides a total of 8 out of 10 parts, thereby proving the sentence is true.
To prove the number sentence 2/5 + 4/10 is true using a partitioned model, you need to start by understanding that fraction addition involves just combining the fractions. If you partitioned a model into 10 equal parts representing 1 whole, 2/5 would be 4 parts and 4/10 would be 4 parts. Adding these together 4parts (being 2/5) + 4parts (being 4/10) makes 8 parts. Since 1 whole is made up of 10 parts, 8 parts equate to 8/10 or 0.8. Therefore, 2/5 + 4/10 = 0.8 or 8/10 validating the sentence as true.
Learn more about Fraction Addition here:
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