All categories

3 years ago

What is the sum of the measures of <A and <B?

Mathematics

2 answers:

spin [16.1K]3 years ago

6 0

Answer:

Option A, 145 degrees

Step-by-step explanation:

Step 1: Find the angle C

Since 145 plus c equals 180

145 + c - 145 = 180 - 145

c = 35

Step 2: Find angle A and angle B

Since angle A and angle B have that little curve on them, that means that they are congrunet or the are the same angle. ALSO, all triangles add up to 180.

Let a represent angles a and b combine

35 + a - 35 = 180 - 35

a = 145

Answer: Option A, 145 degrees

Tju [1.3M]3 years ago

3 0

Answer:

145

Step-by-step explanation:

Because that angle(C) is sum of the A & B. ✌️

You might be interested in

*cough cough* I need help :D

Romashka-Z-Leto [24]

Step-by-step explanation:

*cough cough*

4 0

3 years ago

Find a8 when a1= 9, d = 4 of the arithmetic sequence whose first term is a1 and common difference is d.

Gelneren [198K]

General Arithmetic Terms

$\displaystyle \large{a_n = a_1 + (n - 1)d}$

We want to find a8; we know:

a1 = 9
d = 4

Substitute in the formula.

$\displaystyle \large{a_n = 9 + (n - 1)4} \\ \displaystyle \large{a_n = 9 + 4n - 4} \\ \displaystyle \large{a_n = 4n + 5}$

To find a8, substitute n = 8

$\displaystyle \large{a_8= 4(8) + 5} \\ \displaystyle \large{a_8= 32 + 5} \\ \displaystyle \large{a_8= 37}$

Hence, the 8th term of sequence is 37

5 0

2 years ago

What doe decimals have that fractions don't have?

chubhunter [2.5K]

A decimal point................................................................

4 0

2 years ago

Which one of the triangles shown is the image of the other triangle after dilation?What are the coordinates of the center of dil

Tanya [424]

Answer:

a) ΔF'G'H' is the image of ΔFGH

b)Center of dilation (7,-1)

c) Scale factor: $\frac{1}{2}$

Step-by-step explanation:

Question a

Since the smaller triangle is named F'G'H', it means that, it is the image of triangle FGH.

Question B.

To find the center of dilation, draw straight lines through any two corresponding points.

The straight lines will meet at (7,-1).

This is called the center of dilation.

See graph in attachment.

Question c

The scale factor of the dilation is given by;

$k=\frac{|F'G'|}{|FG|}$

$k=\frac{\sqrt{(4-5)^2+(1-5)^2}}{\sqrt{(3-1)^2+(3-11)^2}}$

$k=\frac{\sqrt{1+16}}{\sqrt{4+64}}$

$k=\frac{\sqrt{17}}{\sqrt{68}}$

$k=\frac{\sqrt{17}}{2\sqrt{17}}$

$k=\frac{1}{2}$

7 0

3 years ago

Please someone help! Will give BRAINLY to correct answer

Hatshy [7]

Answer:

8.6

Step-by-step explanation:

6 0

3 years ago

What is the sum of the measures of <A and <B?​

What is the sum of the measures of <A and <B?