All categories

3 years ago

Help! need these answers filled in for school asap

Mathematics

1 answer:

vampirchik [111]3 years ago

3 0

Answer:

Given : JKLM is a rectangle.

Prove: JL ≅ MK

Since, by the definition of rectangle all angles of rectangles are right angle.

Thus, In rectangle JKLM,

∠ JML and ∠KLM are right angles.

⇒ ∠ JML ≅ ∠KLM

Since, JM ≅ KL (Opposite sides of rectangles are congruent)

ML ≅ ML ( Reflexive )

Thus, By SAS congruence postulate,

Δ JML ≅ Δ KLM

⇒ JL ≅ MK ( because corresponding parts of congruent triangles are congruent)

Hence proved.

You might be interested in

Last month, a factory produced 880 television sets. This month, the same factory produced 1,210 television sets. The increase in

Lostsunrise [7]

Answer:

330 television set

Step-by-step explanation:

Last month production = 880 television sets

This month production = 1,210 television sets

The increase in production from last month to this month = This month production - Last month production

= 1,210 - 880

= 330

The increase in production from last month to this month = 330 television set

7 0

3 years ago

1) Write 4 ratios, using the scaling<br> down method, that are equivalent to<br> 48 to 60

kow [346]

Answer:

96 to 120

24 to 30

12 to 15

6 to 7.5

6 0

2 years ago

Amir is building a birdhouse that looks like a castle. The diagram shows the roof of the birdhouse. He plans to paint the roof r

Amiraneli [1.4K]

Answer:

The surface area is $0.64\ m^{2}$

Step-by-step explanation:

we know that

The surface area of a square pyramid is equal to the area of the square base plus the area of its four lateral triangular faces.

$SA=b^{2}+4[\frac{1}{2}(b)(l)]$

we have

$b=0.4\ m$

$l=0.6\ m$

substitute the values

$SA=0.4^{2}+4[\frac{1}{2}(0.4)(0.6)]=0.64\ m^{2}$

4 0

3 years ago

Read 2 more answers

Use mathematical induction to prove that, for n ≥ 1, n³ – n is divisible by 3.

ICE Princess25 [194]

Answer:

Step-by-step explanation:

5 0

2 years ago

Your friend decides to flip a coin repeatedly to analyze whether the probability of a head on each flip is 1/2. He flips the coi

Phoenix [80]

Answer:

Step-by-step explanation:

Given that a friend flips a coin 10 times and observes head 7 times. So he concludes Probability of head =0.1

This is wrong because

i) Just making 10 trials and coming to conclusion is wrong. Trials should be large to get accurate estimate

ii) The way he threw the coin may be biased so differrent persons should flip and get results for larger trials

iii) External influences such as air, any other disturbance is not considered here.

To avoid all these sampling fluctuations number of trials should be increased with different situations and times.

6 0

3 years ago