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3 years ago

In ABC, m∠A=10 and m∠B=145. Select the triangles that are similar to ABC.

Mathematics

1 answer:

Tanya [424]3 years ago

3 0

Answer:

Step-by-step explanation:

A triangle has 180 degrees.

So, 10 + 145 + x = 180

x = 25

This means that the angles in the triangle are:

10, 145, and 25

Using this information, only A has the same values so it is the answer

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What is the rate of change and initial value for the linear relation that includes the points shown in the table?

Wittaler [7]

Answer:

Initial value $12$ , rate of change: $-2$

Step-by-step explanation:

Step 1

Find the rate of change

we know that

In a linear equation the rate of change is equal to the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have

$A(1,10)\ B(2,8)$

Substitute the values

$m=\frac{8-10}{2-1}$

$m=-2$ ----> rate of change

Step 2

Find the initial value

The equation of the line into slope-point form is equal to

$y-y1=m(x-x1)$

Substitute

$y-10=-2(x-1)$

$y=-2x+2+10$ $y=-2x+12$

The initial value is the value of y when the value of x is equal to zero (is the y-intercept)

$y=-2*0+12=12$ ----> initial value

7 0

3 years ago

Read 2 more answers

The difference of a number and 6is the same as 5 times

leva [86]

Answer:

let difference be x

Step-by-step explanation:

you can solve for x by keeping the 2 statesments as conditions.

then you solve for both equations together by adding subtracting or multiplying.

eg: let x be the number.

the. proceed with conditions as equations

then solve

then your answer is here

5 0

2 years ago

A rectangle has vertices (r,t) , (r,s) and (t,t). find the fourth vertex

Andrej [43]

Answer:

(t,s)

Step-by-step explanation:

this point has the x value t and the y value s that is missing.

4 0

3 years ago

WILL MARK BRAINIEST AND 25 POINTS

MrRissso [65]

I did this in school: it would be A, C, and D

7 0

3 years ago

a movie sells tickets for for the cost of 4$ and 6$.there is a total of 75 tickets for a total of 400$,how many tickets were sol

sattari [20]

50 $6 TICKETS WERE SOLD
25 $4 TICKETS WERE SOLD

hope this helped :)

4 0

3 years ago