Answer:
a = -1, b = -2.5
Step-by-step explanation:
Rule for the dilation of a vector 
by a scale factor of k is,
(x, y) → (kx, ky)
BY using this rule for a vector 
by a scale factor of 2.5
→ 
Followed by the rotation by 90° Or 
radians,
Rule for rotation of a vector by 90° is,
(x, y) → (-y, x)
By this rule vector will become,
→ 
If we represent this vector by 
,
Then a = -1 and b = -2.5 will be the answer.
Answer:
300
Step-by-step explanation:
125/2.5=50
50 x 6=300
Joseph will be able to drive 300 miles in 6 hours
hope this helps!
Explanation:
Statements are numbered; reasons are in italics.
1. ABCD is a parallelogram with AB≅CD and BC≅AD. <em>Given; definition of a parallelogram</em>.
2. Diagonal AC ≅ diagonal CA. <em>Reflexive property of congruence</em>.
3. ΔABC ≅ ΔCDA. <em>SSS congruence postulate</em>.
4. ∠B ≅ ∠D. <em>CPCTC</em>. (Opposite angles B and D are congruent.)
5. Diagonal BD ≅ diagonal DB. <em>Reflexive property of congruence</em>.
6. ΔABD ≅ ΔCDB. <em>SSS congruence postulate</em>.
7. ∠A ≅ ∠C. <em>CPCTC</em>. (Opposite angles A and C are congruent.)
Answer:
The weight of the zinc in the metal bar was 50% of the weight of the metal bar .
Step-by-step explanation:
Weight of the metal bar ,M= 36 g
Weight of the zinc in the metal bar , m= 18 g
Percentage of zinc in the metal bar :
The weight of the zinc in the metal bar was 50% of the weight of the metal bar .
No, -1/7 is not greater than -1/3,-1,-2, or -0.1
