Por favor ayúdeme con mi tarea de matemáticas... Son ecuaciones 2x + 4y=10 -x+5=9
2 answers:
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Answer:
150.88 cm²
Step-by-step explanation:
A rectangular prism also known as cuboid is a three dimensional object with six rectangular faces and eight vertices. It is a prism because it has the same cross section along the length. It is called a rectangular prism because its cross section is rectangular.
The opposite faces of a rectangular prism are equal to each other.
The total surface area (TSA) of a rectangular prism is:
TSA = 2(wl + wh + lh)
where w is the width of the base, l is the length of the base and h is the height of the prism.
From the question, we can see that:
w = 5 cm, l = 7.4 cm and h = 3.1 cm. therefore:
TSA = 2(wl + wh + lh) = 2[(5 * 7.4) + (5 * 3.1) + (7.4 * 3.1)] = 2(37 + 15.5 + 22.94)
TSA = 2(75.44)
TSA = 150.88 cm²
Answer:
yards
Step-by-step explanation:
Luis had yards of ribbon in total to use for two presents. For the first present Luis used
yards of the ribbon.
Since she had yards in total and she used
yards from it, the amount of ribbon left for second present can be obtained by taking out(subtracting)
yards from
.
So, the number of yards of ribbon left for second present will be:
This means Luis had yards of ribbon for the second present.