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Phantasy [73]
3 years ago
13

Find the value of the expression 9 − j − k for j = 8 and k = 1.

Mathematics
2 answers:
Lady bird [3.3K]3 years ago
5 0

Answer:

The expression equals 0.

Step-by-step explanation:

9 - j - k = x <em>(input values)</em>

9 - 8 - 1 = x <em>(subtract like terms 9 - 8)</em>

1 - 1 = x <em>(subtract like terms 1 - 1)</em>

0 = x

satela [25.4K]3 years ago
3 0

Answer:

9-j-k=0 bbvvxhzhxbxbzbzb

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The difference of twice a number and 2 is<br> 40. Find the number.
IgorLugansk [536]

Answer:

answer = 21

Step-by-step explanation:

2n - 2 = 40

2n - 2 + 2 = 40 + 2

2n = 42

2n/2 = 42/2

n = 21

4 0
2 years ago
Write an expression of the verbal phrase: the quotient of twelve and the product of three times x
Nitella [24]
So basically you're dividing 12 by 3 times x which is 12 over 3x. 12/3x
6 0
3 years ago
Divide the fractions and reduce to lowest terms: 2/5÷3/12​
Lapatulllka [165]

Answer:

8/5

Step-by-step explanation:

You can rewrite the equation to 2/5 * 12/3

Which is equal to 2/5*4

So 2 times 4 is 8

So the answer is 8/5

Hope this helps!

6 0
2 years ago
Sara has a circular fence around her dog house. Each day when she comes home from
larisa86 [58]

Answer:

226.2 feet

Step-by-step explanation:

The fence around the dog's house is a circle, with a radius of 12 meters.

To calculate the distance the dog runs, we need to find the circumference of that circle, which is given by the formula:

C = 2 π r, since we know r, the calculation is easy:

C = 2  π 12 = 24 π = 75.4 feet.

The dog makes three laps around the circle before calming down... so he runs 3 times 75.4 feet.

Dogs run = 3 x 75.4 ft = 226.2 feet

8 0
3 years ago
On a coordinate plane, the segment with endpoints (10, 40) and (70, 120) is
OlgaM077 [116]

Answer:

The length of the resulting segment is 500.

Step-by-step explanation:

Vectorially speaking, the dilation is defined by following operation:

P'(x,y) = O(x,y) + k\cdot [P(x,y)-O(x,y)] (1)

Where:

O(x,y) - Center of dilation.

P(x,y) - Original point.

k - Scale factor.

P'(x,y) - Dilated point.

First, we proceed to determine the coordinates of the dilated segment:

(P(x,y) = (10, 40), Q(x,y) = (70, 120), O(x,y) = (0,0), k = 5)

P'(x,y) = O(x,y) + k\cdot [P(x,y)-O(x,y)]

P(x,y) = (0,0) +5\cdot [(10,40)-(0,0)]

P'(x,y) = (50,200)

Q'(x,y) = O(x,y) + k\cdot [Q(x,y)-O(x,y)]

Q' (x,y) = (0,0) +5\cdot [(70,120)-(0,0)]

Q'(x,y) = (350, 600)

Then, the length of the resulting segment is determined by following Pythagorean identity:

l_{P'Q'} = \sqrt{(350-50)^{2}+(600-200)^{2}}

l_{P'Q'} = 500

The length of the resulting segment is 500.

3 0
3 years ago
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