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3 years ago

What is the distance between the points (-5,3) and (4,3)

Mathematics

2 answers:

svp [43]3 years ago

7 0

Answer:

The correct answer is 9

Np! ;)

LUCKY_DIMON [66]3 years ago

3 0

Answer:

Step-by-step explanation:

The formula of a distance between two points:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

We have the points (-5, 3) and (4, 3). Substitute:

$d=\sqrt{(3-3)^2+(4-(-5))^2}=\sqrt{0^2+9^2}=\sqrt{9^2}=9$

You can mark points in the coordinate system.

Look at the picture.

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What fits with them

Ilya [14]

Answer:

I am not sure can't see the answer choices but pretty sure its rhombus

Step-by-step explanation:

5 0

2 years ago

Which of these scales are equivalent to 3 cm to 4 km? select all that apply. recall that 1 inch is 2.54 cm

AlladinOne [14]

Answer:

1. 0.75 cm to 1 km

4. 0.3 mm to 40 m

Step-by-step explanation:

we have the scale

$\frac{3}{4}\frac{cm}{km}=0.75\frac{cm}{km}$

<u><em>Verify each case</em></u>

case 1) 0.75 cm to 1 km

$\frac{0.75}{1}\frac{cm}{km}=0.75\frac{cm}{km}$

therefore

The scale is equivalent to the given value

case 2) 1 cm to 12 km

$\frac{1}{12}\frac{cm}{km}=0.08\frac{cm}{km}$

$0.08\frac{cm}{km} \neq 0.75\frac{cm}{km}$

therefore

The scale is not equivalent to the given value

case 3) 6 mm to 2 km

Remember that

1 cm= 10 mm

1 mm=0.1 cm

we have

$\frac{6}{2}\frac{mm}{km}=\frac{0.6}{2}\frac{cm}{km}=0.30\frac{cm}{km}$

$0.30\frac{cm}{km} \neq 0.75\frac{cm}{km}$

therefore

The scale is not equivalent to the given value

case 4) 0.3 mm to 40 m

Remember that

1 cm= 10 mm -----> 1 mm=0.1 cm

1 km=1,000 m ----> 1 m=0.001 km

we have

$\frac{0.3}{40}\frac{mm}{m}=\frac{0.03}{0.04}\frac{cm}{km}=0.75\frac{cm}{km}$

$0.75\frac{cm}{km}=0.75\frac{cm}{km}$

therefore

The scale is equivalent to the given value

case 4) 1 inch to 7.62 km

Remember that

1 in= 2.54 cm

we have

$\frac{1}{7.62}\frac{in}{km}=\frac{2.54}{7.62}\frac{cm}{km}=0.33\frac{cm}{km}$

$0.33\frac{cm}{km} \neq 0.75\frac{cm}{km}$

therefore

The scale is not equivalent to the given value

6 0

2 years ago

Factorise 18a³b³- 27a²b³ +36a³b²

irinina [24]

Answer:

(9a^2b^2(2ab - 3b + 4a).

Step-by-step explanation:

Take out the GCF.

The GCF is 9a^2b^2 so the factors are

(9a^2b^2(2ab - 3b + 4a).

3 0

3 years ago

Keisha needs to save $331. To earn money she plans to babysit and charge $11 per hour. Write two estimates Keisha could use to d

Maru [420]

M=11h, let M=331
so 331/11=h

4 0

2 years ago

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xxMikexx [17]

An hourly wage may result in lower pay

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3 years ago