Answer:
Step-by-step explanation:
A: x = 12-4 = 8
B: x = 12/4 = 3
No wonder you asked for help. Some of the questions don't make sense!
x+3 = 9 ⇒ x=6, which doesn't match either A or B.
3·x = 9 ⇒ x=3, which matches B
9 = 3·x is the same as the previous equation, i.e., B.
3+x = 9, doesn't match either A or B.
x = 9-3, doesn't match either A or B
x = 9÷3 ⇒ x=3, which matches B
x+x+x = 9 ⇒ x=3, which matches B
I'm guessing that there is an error in tape A, and x should be 6, not 8.
Answer:
The measure of ∠GKH is 27°
Step-by-step explanation:
- In the isosceles triangle, the base angles are equal in measures
- The measure of an exterior angle at a vertex of a triangle equals the sum of the measures of two opposite interior angles
In Δ HJK
∵ HJ = JK
→ That means the triangle is isosceles
∴ Δ HJK is an isosceles triangle
∵ ∠JHK and ∠JKH are base angles
→ By using the first rule above
∴ m∠JHK = m∠JKH
∵ m∠HJK = 70°
∵ m∠JHK + m∠JKH + m∠HJK = 180° ⇒ interior angles of a triangle
∴ m∠JHK + m∠JKH + 70 =180
→ Subtract 70 from both sides
∴ m∠JHK + m∠JKH = 110
→ Divide their sum by 2 to find the measure of each one
∴ m∠JHK = m∠JKH = 110 ÷ 2 = 55°
∵ ∠JHK is an exterior angle of ΔGHK at vertex H
∵ ∠HGK and ∠GKH are the opposite interior angles to ∠JHK
→ By using the 2nd rule above
∴ m∠JHK = m∠HGK + m∠GKH
∵ m∠JHK = 55°
∵ m∠HGK = 28°
∴ 55 = 28 + m∠GKH
→ Subtract 28 from both sides
∴ 27° = m∠GKH
∴ The measure of ∠GKH is 27°
start with elimination. 8 x 8 is only 64 so C and D dont make sense. The are of the circle is pi(r)². so the radius is 4 squared then multiply by pi and devide by 5 to get the 5 equal parts. So B 10.
The best way to rewrite the sentence "The round cake was cut using a rectangular grid, the outer pieces were different shapes and sizes." is the third option which is "<span>The round cake was cut using a rectangular grid, so the outer pieces were different shapes and sizes."</span>
Complete question
The complete question is shown on the first uploaded image
Answer:
The solution and the explanation is on the second third and fourth uploaded image
