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FromTheMoon [43]
2 years ago
8

What is the slope of the line through (−1,−7) and (3,9)?

Mathematics
2 answers:
Alona [7]2 years ago
8 0

Answer:

The slope is 4.

Step-by-step explanation:

Point slope form is y-y1 over x-x1. I put the coordinates in like this.

9-(-7) over 3-(-1) so thats 9+7 over 3+1. 16 over 4 is 4.

NNADVOKAT [17]2 years ago
3 0

Answer:

The answer is 2

Step-by-step explanation:

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1 1/2 is_____% of 7 1/2
Xelga [282]

Answer:

1 1/2 is__11/15___% of 7 1/2

Step-by-step explanation:

Given

Number - 7\frac{1}{2}  = \frac{15}{2}

Let X % of \frac{15}{2} = \frac{11}{2}

X % is thus equal to

\frac{11}{2} * \frac{2}{15} \\\frac{11}{15}

5 0
2 years ago
The price of an item increased from 20 to 30. The percentage of increase is pls help me I have exam after a week pls I hope you
Veronika [31]

Answer: 50% increase

Step-by-step explanation:

Think of 20 as 100%

Half of 20 is 10 which is 50% in this scenario.

30-20=10

This means that the price of the item increased by 50% or 10.

6 0
2 years ago
Help please !!!!!!!!!!!!!!
ohaa [14]
To start, we're given the range that x lies in: from -1 to 4. We know from the fact that -1 \leq x that -1 will be <em /><em>included</em> in that range, so we mark -1 on the number line with a solid circle. We also know from x\ \textless \ 4 that, while x can be any value <em>up to</em> 4, it does not <em>include </em>4. We indicate this by drawing a hollow circle around 4 on the number line. Since x can be <em>any value within this range</em>, we make that fact clear by drawing a bold line between the points -1 and 4 on the number line. I've attached an image of what our final graph would look like.

5 0
2 years ago
Write the equation of the circle with center (5, 1) and radius r = 10
kherson [118]
The standard equation for the circle is:

(x-h)^2+(y-k)^2=r^2, where (h,k) is the center of the circle and r is the radius.

We are given that the center is (5,1) and r=10 so

(x-5)^2+(y-1)^2=100
4 0
3 years ago
Depreciation is the decrease in value of an item. Three years ago, Aaron bought a computer for $930. The computer is now worth $
Umnica [9.8K]

Answer:

$120

Step-by-step explanation:

930-570=360 (Price difference in 3 years)

360 divided by 3= 120 (Price difference for each of the 3 years)

7 0
3 years ago
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