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nordsb [41]
3 years ago
11

9 yd2.5 yd find the surface area of the square ​

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
5 0

Answer:

51.25

Step-by-step explanation:

Do you mean the surface area of the pyramid?

Base = 2.5^2 = 6.25

Triangles = \frac{9 * 2.5 * 4}{2}

9 * 2.5 * 2 = 45

45 + 6.25 = 51.25

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state what additional information is required in order to know that the triangles are congruent by SSS​
Umnica [9.8K]

Answer:  d) DF ≅ JH

<u>Step-by-step explanation:</u>

Side-Side-Side Congruency Theorem states that triangles are congruent if and only if their corresponding side lengths are congruent.

Given: EF ≅HI

Given: DE ≅IJ

Missing: DF ≅ JH

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3 years ago
Can someone help me with this.. It is timed I WILL MARK YOU AS BRAINLIEST
DENIUS [597]
(2p+13)(p−3)/2p-7
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Well h would equal 2A over a+b
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A positive integer is twice another.the sum of the reciprocal of the two positive integer is 3/14. Find the integers
icang [17]

Answer:

\huge\boxed{14\ \text{and}\ 7}

Step-by-step explanation:

n,\ m-\text{positive integer}\\\\n=2m-\text{a positive integer is twice another}\\\\\dfrac{1}{n}+\dfrac{1}{m}=\dfrac{3}{14}-\text{the sum of the reciprocal of the two positive integer is }\ \dfrac{3}{14}\\\\\text{We have the system of equations:}\\\\\left\{\begin{array}{ccc}n=2m&(1)\\\dfrac{1}{n}+\dfrac{1}{m}=\dfrac{3}{14}&(2)\end{array}\right

\text{Substitute (1) to (2):}\\\\\dfrac{1}{2m}+\dfrac{1}{m}=\dfrac{3}{14}\\\\\dfrac{1}{2m}+\dfrac{1\cdot2}{m\cdot2}=\dfrac{3}{14}\\\\\dfrac{1}{2m}+\dfrac{2}{2m}=\dfrac{3}{14}\\\\\dfrac{1+2}{2m}=\dfrac{3}{14}\\\\\dfrac{3}{2m}=\dfrac{3}{14}\Rightarrow2m=14\qquad\text{divide both sides by 2}\\\\\dfrac{2m}{2}=\dfrac{14}{2}\\\\\boxed{m=7}

\text{Substitute it to (1):}\\\\n=2\cdot7\\\\\boxed{n=14}

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y=mx+b
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