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Simora [160]
3 years ago
7

Show whether the values x=4 and y =5 make inequality 7x-3y<19

Mathematics
1 answer:
Valentin [98]3 years ago
7 0

Answer:

The inequality is true.

Step-by-step explanation:

To show that it is true, you simply sub in 4 for x and 5 for y and see if the statement is true or not

7(4)-3(5) < 19

28-15 < 19

13 < 19

You might be interested in
Factor x2 – 3x – 28.
wariber [46]

Values needed to complete the X diagram are:

On top -28, On the bottom: -3 and On the sides: -7 and 4.

<h3>What do you mean by factorization?</h3>

An algebraic expression is factorised when it is written as the product of its factors.

The given equation is :

F(x) = x²-3x-28

finding factors,

=  x²-7x+4x-28

= x(x-7) +4(x-7)

= (x-7)(x+4)

Given general equation is ax²+bx+c,

on comparing with  x²-3x-28

a = 1

b = -3

c = -28

ac = 1*(-28) = -28

To know more about factorization please visit:

brainly.com/question/23153500

#SPJ13

3 0
1 year ago
is 9/9 a whole number? because when simplified it equls 1 and 1 is a whole number, but since its in fractiom form does that coun
kifflom [539]

Answer:

Even though it's in fraction form it's still a whole number.

Step-by-step explanation:

Here's an example to make this easier-

If you cut an orange into 8 slices and count all the parts it's 8/8, but you still have 1 whole orange. I hope this makes sense! have a great day! ^^

8 0
1 year ago
Coughing forces the trachea (windpipe) to contract, which in turn affects the velocity of the air through the trachea. The veloc
Rzqust [24]
To find the maximum velocity you have to differentiate the function respect to r.

v = k(R - r)r^2 = kRr^2 - krr^2 = kRr^2 - kr^3

k and R are constants.

=> v' = 2kRr - 3kr^2 = kr(2R - 3r)

maximum velocity => v' = 0 => kr(2R - 3r) = 0

r = 0 or 2R - 3r = 0 => r = 2R / 3

Answer: r = 2R / 3




8 0
3 years ago
I dont know how to graph these equations please help me!!,
damaskus [11]
The second equation is y=5x+2
4 0
3 years ago
Joshua went to the hardware store and bought 4 yellow ropes. The total
shusha [124]

Answer:

15.55m

Step-by-step explanation:

<u>62</u><u>.</u><u>2</u>

4

= 15.55m

Therefore, each rope is 15.55m

5 0
3 years ago
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