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3 years ago

How many triangles exist with the given side lengths?12 in, 15 in, 18 in *

Mathematics

1 answer:

Mariulka [41]3 years ago

6 0

Answer:

Only a scalene triangle would have the given side lengths making it a unique triangle.

Step-by-step explanation:

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Draw a circle with center A and a radius of your choice. Create three well-spaced points, B, C, and D, on the circle in clockwis

Dmitry [639]

Answer:

Please find attached the required circle

It is observed that the angle subtended by the arc CB which are m∠CAB and m∠CDB is such that the angle arc CB subtends at the center, m∠CAB is two times the angle that the arc CB subtends at the circumference

The measured angle subtended by the arc CB at the center m∠CAB = 64° and the measured angle subtended by the arc CB at the circumference m∠CDB = 32°

Step-by-step explanation:

5 0

3 years ago

a car travels 60km in 36minutes.At the same average speed, how far will it travel in 1 hour 12 minutes

Minchanka [31]

Answer:

120km

Step-by-step explanation:

1hr 12 min is double 36 minutes

so just double 60

5 0

3 years ago

Solve 4x- c= k for x. A. x = 4(k - c) O B. x = 4(k+ c) O C. x-*** O D. x-**

ElenaW [278]

Answer:

x = 1/4c + 1/4k **i may be wrong**

7 0

3 years ago

Which of the following is a solution of x2 + 2x + 4?

RideAnS [48]

Answer:

option-D

Step-by-step explanation:

we are given

$x^2+2x+4$

Let's assume it is equal to 0

$x^2+2x+4=0$

We can use quadratic formula

Suppose, we are given quadratic equations as

$ax^2+bx+c=0$

$x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

we can compare and find a,b and c

a=1 , b=2 , c=4

now, we can plug values

and we get

$x=\frac{-2\pm \sqrt{2^2-4\cdot \:1\cdot \:4}}{2\cdot \:1}$

now, we can simplify it

and we get

$x=-1+\sqrt{3}i,\:x=-1-\sqrt{3}i$

6 0

3 years ago

Read 2 more answers

Delia is a graphic designer who charges an hourly rate. She made the graph to show her total earnings for various numbers of hou

stich3 [128]

Answer:

approximately 7 hours

see the explanation

Step-by-step explanation:

The picture of the question in the attached figure

Let

x ----> the time worked in hours

y ----> the amount earning in dollars

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $k=\frac{y}{x}$ or $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

In this problem we have a proportional relationship

step 1

Find approximately how many hours would it take Delia to earn $250 ?

Looking at the graph

For y=$250 The value of x is approximately 7 hours

see the attached figure N 2

step 2

Find the exact value

from the graph take the point (5,175)

Find the value of k

$k=\frac{y}{x}$ ----> $k=\frac{175}{5}=\$35\ per\ hour$

The linear equation is

$y=35x$

For y=$250

substitute

$250=35x$

solve for x

$x=7.14\ hours$

8 0

3 years ago