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Sindrei [870]
3 years ago
12

If the gradient of a line is 2 and (7,2) is a point on the line, find it's equation​

Mathematics
1 answer:
choli [55]3 years ago
8 0

Answer:

y = 2x - 12

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 2 , then

y = 2x + c is the partial equation

To find c substitute (7, 2 ) into the partial equation

2 = 14 + c ⇒ c = 2 - 14 = - 12

y = 2x - 12 ← equation of line

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Place value of 6 in 2.675 and 1 in 804.721
OleMash [197]
1} 2.675 (6) =0.1 or the tenth

2} 804.721 (1) = 0.001 or the thousandth
3 0
4 years ago
What is the equivalent to 9 11/27
Vika [28.1K]
Do 27 times 9 then add the quotient by 11
8 0
3 years ago
What is a difference of squares with a factor of (3x + 7) ?
Inga [223]

Answer:

9x² - 49

Step-by-step explanation:

A difference of squares factors in general as

a² - b² = (a + b)(a - b)

Given (3x + 7) with a = 3x and b = 7

Then the other factor is (3x - 7)

(3x + 7)(3x - 7)

= (3x)² - 7²

= 9x² - 49

7 0
3 years ago
A triangle has side lengths of 200 units and 300 units. Write a compound inequality for the range of the possible lengths for th
OLga [1]

Answer:

100<x<500

Step-by-step explanation:

The third side cannot exceed the others added up so x is less than 500, due to the laws of triangles.

If you subtract 300-200, you get 100, so x has to be greater than 100.

x is greater than 100 but less than 500

Therefore the answer is...

100<X<500

The laws of triangles state that a triangle has to be greater than the other two edges subtracted, and less than the other two edges added.

I hope this helps!!!

7 0
3 years ago
Hey guys! I’m having a lot of trouble with this paper, would anyone mind explaining one of them to me?
lyudmila [28]

Answer: See Explanation

Step-by-step explanation:

This worksheet seems to be about "Special Right Triangles"

In this worksheet, it instructs you to find the missing side lengths.

Explaining number 1)

Step 1) Identifying the triangle and what it means

Since the triangle in number one is a 45-45-90 triangle with the given side length of "1" on one of the legs of the triangle, it can be concluded that the other leg also has a side length of "1" (due to the ratio of side on a 45-45-90 degree triangle), is also states the triangle has 45 degrees labeled on one of the angles, is can also be concluded that the other missing angle is 45 degrees.

Step 2) Answer

The answer to b is 1 and the answer to a is square root of 2, due to the properties of a 45 45 90 triangle (refer attachment)

*you can also use the following attachment to help you on this problem

7 0
3 years ago
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