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faust18 [17]
3 years ago
8

Wich expression can be used to find the slope of a line containing the points (-3,2) and (7,-1)

Mathematics
1 answer:
docker41 [41]3 years ago
6 0
A(x_1;\ y_1);\ B(x_2;\ y_2)\\\\\text{The slope:}\ m=\dfrac{y_2-y_1}{x_2-x_1}


\text{We have:}\\(-3;\ 2)\to\ x_1=-3;\ y_1=2\\(7;\ -1)\to x_2=7;\ y_2=-1

\text{substitute}\\\\m=\dfrac{-1-2}{7-(-3)}=\dfrac{-3}{10}=-\dfrac{3}{10}
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Answer:

35 minutes

Step-by-step explanation:

2 hrs 4 min= 160 min

3 hrs 15 min= 195 min

195-160=35

6 0
3 years ago
Can someone please help me
Natalija [7]
ANSWER: $84

EXPLANATION:

We need to know the surface area of the room with the specified dimensions.

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w = 12
h = 8
l = 16

A = 2( (12 * 16) + (8 * 16) + (12 * 8) )

A = 2(192 + 128 + 96)

A = 2(416)

A = 832 square feet


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4 0
3 years ago
Which inequality is graphed on the number line? please Hurry!!!
user100 [1]

Answer:

Option C

Step-by-step explanation:

From the number line given in the picture,

Blue arrow has the starting point at a = 6 (Dark point) and moving towards negative side of the number line.

Therefore, number line represents a ≤ 6

3a ≤ 3(6)

3a ≤ 18

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Therefore, Option C is the correct option.

3 0
3 years ago
Find the tenth term of the geometric sequence, given the first term and common ratio.
Natalija [7]

Answer:

a_{10}=\dfrac{1}{128}

Step-by-step explanation:

In the geometric series:

a_1=4\\ \\r=\dfrac{1}{2}

The nth term of the geometric sequence can be calculated using formula

a_n=a_1\cdot r^{n-1}

In your case, n = 10, then

a_{10}\\ \\=4\cdot \left(\dfrac{1}{2}\right)^{10-1}\\ \\=4\cdot \left(\dfrac{1}{2}\right)^9\\ \\=2^2\cdot \dfrac{1}{2^9}\\ \\=\dfrac{1}{2^{9-2}}\\ \\=\dfrac{1}{2^7}\\ \\=\dfrac{1}{128}

8 0
2 years ago
Which expression is equivalent to the expression below? 4 x 2/3 A.
Tema [17]
Bro just go on Symbolab and use the calculator
8 0
2 years ago
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