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KiRa [710]
4 years ago
6

Find the missing side length. Assume that all intersecting sides meet at right angles. Be sure to include the correct unit in yo

ur answer.
Not really sure how to solve this one. Please help!

Mathematics
2 answers:
klemol [59]4 years ago
7 0
The answer is 6 ft, because you have the lenght of right side minus the length of left side, which is 13-7=6
ZanzabumX [31]4 years ago
4 0

Answer:

Step-by-step explanation:

13 +7+20 so it is 7

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A fisherman can row upstream at 4 mph and downstream at 6 mph. He started rowing upstream until he got tired and then rowed down
shepuryov [24]

A fisherman can row upstream at 4 mph and downstream at 6 mph. He started rowing upstream until he got tired and then rowed downstream to his starting point. The distance of how far the fisherman row if the entire trip took 2 hours is  9.6 miles

<u />

The speed of an object refers to the change of the object's distance within a specified time.

Mathematically, we can have;

\mathbf{Speed =\dfrac{distance}{time}}

Distance = speed × time

From the information given;

  • The fisherman row upstream for 4 miles/ hour.
  • The distance covered by the fisherman = 4 × t₁  ----- (1)

  • The fisherman row downstream at 6 miles/ hour
  • The distance covered by the fisherman = 6 × t₂  ------ (2)

  • SInce it took the entire trip 2 hours, we can infer that:

  • t₁ + t₂ = 2
  • t₂ = 2 - t₁

From equation (2), replace the above value of t₂ into equation (2)

  • d = 6 t₂
  • d = 6(2 - t₁)
  • d = 12 - 6t₁

From equation (1)

  • d = 4 t₁  

Equation both distance together, we have:

  • 12 - 6t₁ = 4t₁
  • 12 = 4t₁ + 6t₁
  • 12 = 10t₁
  • t₁ = 12/10
  • t₁ = 1.2  hours

From t₂ = 2 - t₁

  • t₂ = 2 - 1.2
  • t₂ = 0.8 hours

From d = 4t₁

Replace t₁ with 1.2 hours

  • d = 4(1.2 hours)
  • d = 4.8 miles

Also, from d = 6t₂

  • d = 6(0.8)
  • d = 4.8 miles

Therefore, we can conclude that the distance of how far the fisherman row if the entire trip took 2 hours is (4.8+4.8) miles = 9.6 miles

Learn more about distance here:

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3 years ago
The surface area of a cone with radius r units and slant height s units is shown below:
Diano4ka-milaya [45]

Step-by-step explanation:

part A:

Area_{_{surface}}=3.14*(3*5+3^2);

part B:

Area_{_{surface}}=3.14*(15+9)=3.14*24=75.36[units^2].

7 0
2 years ago
You select a marble without looking and then put it back. If you do this 6 times, what is the best prediction possible for the n
mojhsa [17]

Answer:

the possible prediction of getting a purple or blue is 2 out of 6

Step-by-step explanation:

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4 0
3 years ago
Based on the graph which congruence theorems or postulates are reasons why these graphs are equal?
AnnZ [28]

Triangles DEF and JKL can be proven to be congruent triangles based on:

C. ASA

E. AAS

F. LA

<h3>What is the ASA Congruence Theorem?</h3>

The ASA congruence theorem states that if two triangles that are have two pairs of corresponding congruent angles and a pair of corresponding included congruent sides, then both triangles are congruent to each other.

<h3>What is the LA Congruence Theorem?</h3>

The LA congruence theorem states that two right triangles are congruent if they have a pair of congruent legs and a pair of congruent angles that are corresponding to each other.

<h3>What is the AAS Congruence Theorem?</h3>

The AAS congruence theorem states that two triangles with two pairs of congruent angles and a pair of congruent non-included sides are congruent.

From the image given, triangles DEF and JKL can be proven to be congruent triangles using the LA, AAS, and ASA congruence theorems.

Learn more about the LA, AAS, and ASA congruence theorems on:

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7 0
2 years ago
Help plz:)))I’ll mark u Brainliest
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Answer:

If the bottom of the red triangle is equal to 4 then its

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if the mi2 in the corner means multiply mi by 2 then 80

If the mi2 in the corner is an exponent then 160

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3 years ago
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