3 years ago

What is the length of QR

Mathematics

2 answers:

raketka [301]3 years ago

8 0

Answer:

Step-by-step explanation:

Set 3n-1=5n-7.

Solve.

n=3.

Plug in 3 to 5n-7.

QR=8

Rus_ich [418]3 years ago

8 0

Answer:

QR=8

Step-by-step explanation:

so using the fact that the two triangles are congruent, we can determine:

5n-7=3n-1

5n-6=3n

2n-6=0

n=3

so we replace all n in 5n-7 with three

5x3-7

15-7

You might be interested in

A Mater Exam

astraxan [27]

Answer:

The slope of the perpendicular line to the line is

m = $\frac{-1}{2}$

Step-by-step explanation:

Step(i):-

Given that the line y =f(x) = 2x +6

⇒ y = 2x +6

comparing y =mx +c

The slope of the given line m =2

Step(ii):-

The slope of the perpendicular line = $\frac{-1}{m}$

The slope of the perpendicular line = $\frac{-1}{2}$

3 0

3 years ago

A circle is inscribed in a square. A point in the figure is selected at random. Find the probability that the point will be in t

Margaret [11]

Answer:

i think so 5%

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Does anybody no the answer need help please

pentagon [3]

The answer is B $0.75

3 0

3 years ago

Read 2 more answers

Consider the function f(x)=−23x+2f(x)=−23x+2 . What is f(12)f(12) ? Enter your answer, as a simplified fraction, in the box

-Dominant- [34]

F(12)= 278
f(12)= -274

5 0

3 years ago

Read 2 more answers

Triangle ABC has a right angle at B. If sin A = 2/7 then cot A is_

zmey [24]

Answer:

Dear Aljanahi,

Answer to query is provided below-

Cot A value is 6.708/7

Step-by-step explanation:

The image attached has step by step explanation.

3 0

3 years ago