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3 years ago

Which is longer? 10 or 10 2/5 miles?

Mathematics

2 answers:

Hunter-Best [27]3 years ago

7 0

The answer is 10 2/5

jasenka [17]3 years ago

6 0

The answer is 10 2/5.

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WILL MARK BRAINLIEST!!!

wariber [46]

$f(x) = -9x^4 + 5x + 3\\\\ f(-x)= -9(-x)^4 + 5\cdot(-x) + 3=-9x^4-5x+3\\\\ f(-x)\not =f(x)\implies \text{ not even}\\\\ -f(x)=-( -9x^4 + 5x + 3)= 9x^4 - 5x - 3\\\\ -f(x)\not =f(-x) \implies \text{ not odd}$

Neither

4 0

3 years ago

Given points A(-1, -2) and B(2, 4) where AP: BP=1:2, find the locus of point P.

koban [17]

Answer:

$x^2 + 4x + y^2 +8y = 0$

Step-by-step explanation:

Given

$A = (-1,-2)$

$B = (2,4)$

$AP:BP = 1 : 2$

Required

The locus of P

$AP:BP = 1 : 2$

Express as fraction

$\frac{AP}{BP} = \frac{1}{2}$

Cross multiply

$2AP = BP$

Calculate AP and BP using the following distance formula:

$d = \sqrt{(x - x_1)^2 + (y - y_1)^2}$

So, we have:

$2 * \sqrt{(x - -1)^2 + (y - -2)^2} = \sqrt{(x - 2)^2 + (y - 4)^2}$

$2 * \sqrt{(x +1)^2 + (y +2)^2} = \sqrt{(x - 2)^2 + (y - 4)^2}$

Take square of both sides

$4 * [(x +1)^2 + (y +2)^2] = (x - 2)^2 + (y - 4)^2$

Evaluate all squares

$4 * [x^2 + 2x + 1 + y^2 +4y + 4] = x^2 - 4x + 4 + y^2 - 8y + 16$

Collect and evaluate like terms

$4 * [x^2 + 2x + y^2 +4y + 5] = x^2 - 4x + y^2 - 8y + 20$

Open brackets

$4x^2 + 8x + 4y^2 +16y + 20 = x^2 - 4x + y^2 - 8y + 20$

Collect like terms

$4x^2 - x^2 + 8x + 4x + 4y^2 -y^2 +16y + 8y + 20 - 20 = 0$

$3x^2 + 12x + 3y^2 +24y = 0$

Divide through by 3

$x^2 + 4x + y^2 +8y = 0$

3 0

3 years ago

Raymond bought a used truck for $18,800. If the sales tax in his state is 7 percent, what was the final price for his car?

Ksju [112]

Answer:

20116

Step-by-step explanation:

18880 x .07 = 1316

18800 + 1316 =20116

6 0

3 years ago

Read 2 more answers

Deniz had a full gallon of milk. She poured out 444 cups of milk. There are 161616 cups in 111 gallon. About what percent of the

Svetlanka [38]

75% of the gallon of milk is left

16/16-4/16=12/16

12/16=3/4=0.75

7 0

4 years ago

What is the length of VS?

hram777 [196]

Answer:

use pythag

half 5 = 2.5

half 12 = 6

6^2 + 2.5^2=42.25

42.25 sprout =13/2= 6.5

answer = 6.5

4 0

3 years ago