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3 years ago

12

Find the distance between (2,4) and (12, 9) on a coordinate plane. round to the nearest tenth if necessary. *

1 answer:

atroni [7]3 years ago

4 0

Use pythagoras

d = √(Δx² + Δy²)
d = √(12-2)² + (9-4)²
d = √(10² + 5²)
d = √(100 + 25)
d = √125
d = 5√5
d = 5 × 2.236
d = 11.18

The nearest tenth is 11.2, so the distance is near to 11.2

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The area of a square is given by the expression square inches. Find an expression that represents the length of one side of the

Verizon [17]

Answer:

A. x-6

Step-by-step explanation:

The area of a square is given by the expression $x^2-12x+36$ square inches. Now we need to find an expression that represents the length of one side of the square, in inches. To do that we need to factor $x^2-12x+36$ .

$x^2-12x+36$

$=x^2-6x-6x+36$

$=x(x-6)-6(x-6)$

$=(x-6)(x-6)$

$=(x-6)^2$

Since area of square is given by (side)^2

Hence one side of square is (x-6).

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3 0

3 years ago

I thought of a number, I added 1 3 4 to it, then I multiplied the result by 2 2 11 and I got 8. What was my number?

Valentin [98]

Given:

In a number, adding $1\dfrac{3}{4}$ , then multiplying the result by $2\dfrac{2}{11}$ we get 8.

To find:

The unknown number.

Solution:

Let the unknown number be x.

According to the question,

$(x+1\dfrac{3}{4})\times 2\dfrac{2}{11}=8$

$(x+\dfrac{1\times 4+3}{4})\times \dfrac{2\times 11+2}{11}=8$

$(x+\dfrac{4+3}{4})\times \dfrac{22+2}{11}=8$

$(x+\dfrac{7}{4})\times \dfrac{24}{11}=8$

Multiply both sides by $\dfrac{11}{24}$ .

$x+\dfrac{7}{4}=8\times \dfrac{11}{24}$

$x+\dfrac{7}{4}=\dfrac{11}{3}$

Subtract $\dfrac{7}{4}$ from both sides.

$x=\dfrac{11}{3}-\dfrac{7}{4}$

$x=\dfrac{44-21}{12}$

$x=\dfrac{23}{12}$

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Therefore, the required number is $1\dfrac{11}{12}$ .

3 0

3 years ago

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zysi [14]

Answer:

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Step-by-step explanation:

$5(4+8c)$

Expand

$5\times 4 = 20\\5 \times 8c = 40c$

= $20+40c\\\\=40c +20$

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3 years ago

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expeople1 [14]

And the answer is B.

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3 years ago

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-BARSIC- [3]

Answer:

i believe x would be 12

Step-by-step explanation:

i did 7+5=12

4 0

3 years ago

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