If ΔSTU≅ΔHIJ, then what corresponding parts are congruent?
2 answers:
Answer:
The answer are given below.
The corresponding congruent angles are as follows
∠ STU ≅ ∠ HIJ
∠ TUS ≅ ∠ IJH
∠ UST ≅ ∠ JHI
The corresponding congruent sides are as follows
ST ≅ HI
TU ≅ IJ
SU ≅ HJ
Step-by-step explanation:
If Δ STU ≅ Δ HIJ ....... Given
if two triangles are congruent then
- corresponding sides are congruent
- corresponding angles are congruent
The corresponding congruent angles are as follows
∠ STU ≅ ∠ HIJ
∠ TUS ≅ ∠ IJH
∠ UST ≅ ∠ JHI
The corresponding congruent sides are as follows
ST ≅ HI
TU ≅ IJ
SU ≅ HJ
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1.326 grams of NH3 are required to produce 4.65 g of HF.
Step-by-step explanation:
Balanced chemical reaction is written first to know the number of moles taking part in original reaction.
NH3 +3 F2 ⇒3 HF + NF3
Given:
mass of HF = 4.65
First the number of moles of HF in 4.65 grams is calculated by using the formula:
number of moles (n) =
atomic mass of HF = 20 grams/mole
putting the values in the above equation number of moles can be found.
n =
= 0.235 moles of HF are given.
From the equation it can be said that:
1 mole of NH3 reacts to form 3 moles of HF
so, x moles of NH3 would react to form 0.235 moles of HF
=
3x = 0.235
x =
x = 0.078 moles of NH3 is required.
The moles are converted to mass by applying the formula:
mass = atomic mass X number of moles (atomic mass of NH3 = 17 grams/mole)
putting the values in the formula
mass = 17 X 0.078
mass = 1.326 grams
Answer:
See explanation and results below.
Step-by-step explanation:
We have the following data:
Age (yr) when award was won Frequency 25-34 31 35-44 36 45-54 12 55-64 4 65-74 6 75-84 1 85-94 2
If we order the data we got the following result. We assume that the midpoint is given by:
The
And the limits are given by the lower and upper limit.
L.Limit U.Limit Class W Midpoint Frequency Limits
25 34 34-25=9 29.5 31 [25-34]
35 44 44-35=9 39.5 36 [35-44]
45 54 54-45=9 49.5 12 [45-54]
55 64 64-55=9 59.5 4 [55-64]
65 74 74-65=9 69.5 6 [65-74]
75 84 84-75=9 79.5 1 [75-84]
85 94 94-85=9 89.5 2 [85-94]