2 years ago

Question 1 Find the measure of each angle indicated.

Mathematics

2 answers:

Inga [223]2 years ago

3 0

Answer:

Step-by-step explanation:

Papessa [141]2 years ago

3 0

Answer:

Step-by-step explanation:

x + 70 =120 {Exterior angle theorem}

x = 120 - 70

x = 50

y = x {Vertically opposite angles}

y = 50

z + 50 + 40 = 180 {Angle sum property}

z + 90 = 180

z = 180 - 90

z = 90

You might be interested in

Two equations with the solution of (3,6)

Anastasy [175]

Step-by-step explanation:

(2+6+9+3+7+3):10=3

57-56+57+90-147+5=6

7 0

2 years ago

Help pls I have a test due tomorrow :(

Mademuasel [1]

Good luck on your test love ya also I have bad period cramps send chocolate please

5 0

3 years ago

Consider the proof. Given: In △ABC, BD ⊥ AC Prove: the formula for the law of cosines, a2 = b2 + c2 – 2bccos(A) Statement Reason

loris [4]

Solution: The missing reason in Step 8 is substitution of $x=c\cos (A)$ .

Explanation:

The given steps are used to prove the formula for law of cosines.

From step 5 it is noticed that our equation is

$a^2=b^2-2bx+c^2$ ..... (1)

From step 7 it is noticed that the value of $x$ is $c\cos (A)$ .

So by substituting $c\cos (A)$ for $x$ in equation (1) we get the equation of step 8, i.e.,

$a^2=b^2-2bc\cos (A)+c^2$

Hence, the missing reason in Step 8 is substitution of $x=c\cos (A)$ .

5 0

3 years ago

Read 2 more answers

Martin drew a triangle. Its sides are 3 cm, 4 cm, and 5 cm. What type of triangle is Martin drawing?

kolbaska11 [484]

Answer:

A scalene triangle .......

4 0

2 years ago

Please help!! Use cube root to solve. Will give brainliest!!

marissa [1.9K]

Answer: x=-17

Step-by-step explanation: Divide by -1 then add 8 to both sides and get (x+9)^3=-512, and the cube root of -512 is -8, so x+9=-8, and subtracting 9 from both sides we get x=-17 as answer.

4 0

2 years ago