Given: is perpendicular to , which is the base of isosceles prove:

Graph the following lines and using the graph determine several values of x for which the graph is positive (negative): y=−4x+3

True [87]

Answer:

Step-by-step explanation:

Given line is,

y=-4x+3

when, x=-1 , y=-4(-1)+3=4+3=7

when, x=0 , y=-4(0)+3=0+3=3

when, x=1 , y=-4(1)+3=-4+3=-1

So, we got the points (-1,7) , (0,3) , (1,-1)

Now, putting the points in the graph and adding them , we will get the graph of given line.

Please check image for the graph.

Now for the second part-

The graph is positive means- it will be above the x-axis, that is y value will be positive.

From the graph we can see that, if x<0 , then y is positive.

So, any value of x which is less than 0 , will give the positive graph here.

6 0

3 years ago

Brett has a $30 online gift voucher. He plans to buy as many books as he can . The cost of each book is $4. There is also a sing

Mrac [35]

Answer:

7

Step-by-step explanation:

30 >or equal to 4x + 2

Solve for x

28 > or equal to 4x

x > or equal to 7

5 0

4 years ago

Please help with the question attached. I really need help! Thanks!

horsena [70]

To solve this question you would first multiply all the dimensions of the pillar together. That would be:

2.5 x 2.5 x 12 = 75 square feet

Then you take the weight of the pillar and divide it by the amount of square feet:

12,000 / 75 = 160 pounds per square foot.

7 0

3 years ago

Please Help!!!!!! Use what you've learned today about the sum of the interior angles of triangles and quadrilaterals to determin

sveta [45]

Answer:

m = 116

x = 24

y = 76

z = 40

Step-by-step explanation:

For startes the interior angles of triangles always add up to 180 degrees.

That means....

73 + 83 + x = 180

z + m + x = 180

z + y + 64 = 180

Another important fact is that two angles that are intersected by a line in the case 64 and m always add up to 180 degrees.

So m + 64 = 180

Let's start with 73 + 83 + x = 180

If you add 73 and 83 you get 156

x + 156 = 180 then subtract 156 from both sides and

x = 24

Then use m + 64 = 180 subtract 64 from both sides and

m = 116

z + m + x = 180 become

z + 116 + 24 = 180

Add 116 and 24 and you get 140

z + 140 = 180 subtract 140 from both sides and

z = 40

Check to make sure m + x + z = 180

24 + 40 + 116 = 180

z + y + 64 = 180 becomes

y + 40 + 64 = 180

40 + 64 = 104 so

y + 104 = 180 subtract 104 from both sides and

y = 76

Congratulations you have found all of the angles!

6 0

3 years ago

List the steps that should be used to solve the equation (f)x=g(x) by graphing when F(x)=(1/2)^x-3 and g(x)=3x+5

Tema [17]

ANSWER

See explanation.

EXPLANATION

Step 1

Graph each of the functions.

$f(x) = ( \frac{1}{2} )^{x - 3}$

and

$g(x) = 3x + 5$

Step 2

Look for the point of intersection of the two graphs.

From the graph, the two functions intersected at

(0.38,6.14)

6 0

3 years ago