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3 years ago

What is the distance between (-13,9) and (11,2) in a coordinate grid

1 answer:

5 0

Distance = Square Root ((X2 - X1)^2 + (Y2 - Y1)^2)
Distance = Square Root [ (11 --13)^2 + (2 -9)^2 ]Distance = Square Root [ 24^2 + -7^2 ]Distance = Square Root [ 576 + 49 ]Distance = Square Root [ 625 ]Distance = 25
Source:http://www.1728.org/distance.htm

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sammy [17]

Answer:

2 gallons per day

Step-by-step explanation:

the mean (average) change in gasoline in gallons per day = (25-11) gallons / 7 days

= 14/7 = 2 gallons per day

7 0

3 years ago

Joe has 10 marbles. Ken has fewer marbles than Joe. Which inequality represents the

Colt1911 [192]

Answer:

m<10

Step-by-step explanation:

Inequality is used to show comparison between two values. It helps to determine which is

• Greater than (>),

• Less than (<),

• Equal to(=),

• Not equal to,

• Greater than or equal to,

• Less than or equal to.

• Greater than is used when one value is more than the other.

• Less than is used when a value is less or smaller than another value.

• Equal to is used when both values are the same.

• Not Equal to is used when both values are not the same

Let Ken marbles= m

Remember that Ken's marbles is fewer than Joe's, that is less than Joe's marbles.

The inequality will be

m<10

8 0

4 years ago

Grade geo Practice 7.3

TiliK225 [7]

Answer:

Nice to hear that, congrats with practice 7.3

4 0

3 years ago

Read 2 more answers

an arch way is modeled by the equation y=-2x^2+8x. A rod is to be placed across the archway at an angle definded by the equation

patriot [66]

So.. hmm check the picture below

now, to know where A and B are, that occurs when the parabolic equation equates the linear one

thus

$\bf y=-2x^2+8x
\\\\\\
x-2.23y+10.34=0\implies \cfrac{x+10.34}{2.23}=y
\\\\\\
y=y\implies -2x^2+8x=\cfrac{x+10.34}{2.23}
\\\\\\
-4.46x^2+17.84x=x+10.34
\\\\\\
0=4.46x^2-16.84x+10.34$

now, running that on the quadratic formula, you end up with the values of 3.00402497440839842242 and 0.77175977895483027713

thus B rounded up is 3.004 and A rounded up is 0.7718

what's the "y" value for B?, well, you can use either the linear or quadratic equation for that, let's use the quadratic one

$\bf B=3.00402497440839842242
\\\\\\
f(B)=-2B^2+8B\implies f(B)=5.98386770152842978586$

5 0

3 years ago

I need help on this! please help will mark brainliest:)

bazaltina [42]

Answer:

P = 48 feet

A = 84 square feet

Step-by-step explanation:

use the Pythagorean Theorem 2 times to find the bases of the two triangles created by the height of eight

1st Δ : one leg is 8 and the hypotenuse is 10

a² + 8² = 10²

a² + 64 = 100

a² = 36

a = 6

2nd Δ : one leg is 8 and the hypotenuse is 17

b² + 8² = 17²

b² + 64 = 289

b² = 225

b = 15

Perimeter = 10 + 17 + 6 + 15 = 48 ft

Area = 1/2(8)(6 + 15) = 4(21) = 84 sq ft

5 0

3 years ago