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Dmitry [639]
3 years ago
11

Find the perimeter of abc with vertices A(-2, 1), B(1, 1), and C(-2,5)

Mathematics
1 answer:
Vladimir [108]3 years ago
6 0

Answer:

7

Step-by-step explanation:

add all sides to find perimeter

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Can someone please help me​
astra-53 [7]

Answer:

square 20 has 44 green squares

square 21 has 45 green squares

Step-by-step explanation:

To solve the problem, we need to observe the cases, and determine/define a rule for each case (odd number of sides, or even number of sides).

For square one, we note that the centre square is shared by two diagonals, so we saved one square from the two diagonals.

The side length is 3 for square 1, 4 for square 2, and so on.

Let

n= square number (1, 2,3...)

L = side length (3,4,5...)

G1(n) = function that gives the number of green squares for square n, n=odd

G2(n) = function that gives the number of green squares for square n, n=even

side length, L=n+2   ................(1)

G1(n) = twice the side length less one, as discussed above

G1(n) = 2L-1       now substitute L=n+2

G1(n) = 2(n+2) -1    simplify

G1(n) = 2n + 3

Check:

for n=1, square 1 has 2*1+3 = 5 green squares ... checks

for n=3, square 3 has 2*3+3 = 9... checks

for n=5, square 5 has 2*5+3 = 13 ....checks

For even squares, it is even easier, because

G2(n) = 2L = 2(n+2)

check:

for n=2, square 2 has 2(2+2) = 8 green squares........checks

for n=4, square 4 has 2(4+2) = 12 green squares........checks.

Fincally, we apply our formula to n=20 and n=21

square 20 : G2(20) = 2(n+2) = 2(20+2) = 44 green quars

square 21 : G1(21) = 2n+3 = 2(21)+3 = 45 green squares

5 0
2 years ago
Helppp
Darya [45]

Answer:

w= -35  so i would go with the first one

Step-by-step explanation:

5 0
3 years ago
A line with a slope of -2/5 that passes through the point (-10,8)
slamgirl [31]

Step-by-step explanation:

m =  -  \frac{2}{3}  \\ ( - 10 ,\: 8) = (x_1,y_1)

y-y_1=m(x-x_1)

Plug in the values into the equation

y - 8 =  -  \frac{2}{3} (x - ( - 10)) \\ y - 8 =  -  \frac{2}{3}( x + 10) \\

y - 8 =  -  \frac{2}{3} x  -  \frac{20}{ 3 }  \\ y =  -  \frac{2}{3} x -  \frac{20}{3}  + 8 \\

y =  -  \frac{2}{3} x +  \frac{4}{3}

To solve for x-intercept , Arrange the values in

ax + by + c = 0

=

-  \frac{2}{3} x - y +  \frac{4}{3}  = 0

To find x-intercept .let y = 0 in the above equation

-  \frac{2}{3} x - y +  \frac{4}{3}  = 0 \\  -  \frac{2}{3} x - 0 +  \frac{4}{3}  = 0 \\

-  \frac{2}{3} x +  \frac{4}{3}  = 0 \\  -  \frac{2}{3} x =  -  \frac{4}{3}

Solve for x ;

x = 2

To find y intercept , let x = 0

and solve for y .

I hope it helps <3

7 0
3 years ago
Read 2 more answers
Among the youth that vape, what percentage smoke e-cigarettes with special flavorings? a 40% b 50% c 85% d more than 95%
Pepsi [2]

Answer:

d. more than 95%

Step-by-step explanation:

According to a survey carried out by the Food Drug Administration from 2016 to 2017, termed Population Assessment of Tobacco and Health, it was discovered that a high percentage of the youth population smoked e-cigarettes with special flavorings. Specifically, it was found that 96.1% of young people within the ages of 12 to 17 started their use of e-cigarettes with the flavored options.

As at the time when the report was being published, 97% of e-cigarette users reported having used flavored e-cigarettes in the past month. The above data shows that more than 95% of youths that vape have smoked e-cigarettes with special flavorings.

5 0
2 years ago
How to calculate (-1,5) and (6,-2) that = -1
Alika [10]

The average rate of change formula is \frac{yf-yi}{xf-xi}

(-2-5)/(6-(-1))=-1

3 0
3 years ago
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