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3 years ago

The scale on a map is 1:500000 two towns are 7cm apart

Mathematics

1 answer:

Eddi Din [679]3 years ago

7 0

7 x 500,000 = 3,500,000.

The towns are 3,500,000 units apart (I don't know what the cm were scale too, sorry.)

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Solve x^2-3=0 using a quadratic equation

anzhelika [568]

Answer:

I think the answers are 3 & 0 .

Step-by-step explanation:

Good luck .

3 0

3 years ago

Find the product of (x2 + 2x −3)(4x2 − 5x + 6). (2 points) a 4x4 + 13x3 − 16x2 + 27x − 18 b 4x4 + 3x3 − 28x2 + 27x − 18 c 4x4 +

skad [1K]

Answer:

Step-by-step explanation:

We want to find:

$(x^2+2x-3)(4x^2-5x+6)$

Distribute:

$=(x^2+2x-3)(4x^2)+(x^2+2x-3)(-5x)+(x^2+2x-3)(6)$

Distribute:

$=(4x^4+8x^3-12x^2)+(-5x^3-10x^2+15x)+(6x^2+12x-18)$

Rearrange:

$=(4x^4)+(8x^3-5x^3)+(-12x^2-10x^2+6x^2)+(15x+12x)+(-18)$

Combine like terms:

$=4x^4+3x^3-16x^2+27x-18$

The answer is D.

6 0

3 years ago

write the linear equation from the given information in slope intercept form passing through (-2,8) and perpendicular to y=2x+5

Leto [7]

Answer:

y = $-\frac{1}{2}$ x + 9

Step-by-step explanation:

Given parameters:

Coordinates = (-2,8)

Equation of the line y = 2x + 5;

Unknown:

Linear equation of a line perpendicular = ?

Solution:

From the given expression, a line perpendicular will have a negative inverse of the slope given.

y = 2x + 5

Equation of a line is y = mx + c;

y and x are the coordinates

m is the slope

c is the intercepts

y = 2x + 5 ;

The slope is 2;

A line perpendicular will have a slope of $-\frac{1}{2}$

Since y = 8 and x = -2, let us find c;

8 = 2 x $-\frac{1}{2}$ + c

8 = -1 + c

c = 8+1 = 9

The equation of the line is;

y = $-\frac{1}{2}$ x + 9

7 0

2 years ago

Fraction from or decimal form but has to be rounded

Alekssandra [29.7K]

Answer:

x = $\frac{25}{6}$

Step-by-step explanation:

Given expression is,

$2x-\frac{11}{4}x=-\frac{25}{8}$

$\frac{8x}{4}-\frac{11}{4}x=-\frac{25}{8}$

$\frac{8x-11x}{4}=-\frac{25}{8}$

$-\frac{3x}{4}=-\frac{25}{8}$

$\frac{3x}{4}\times 4=\frac{25}{8}\times 4$

$3x=\frac{25}{2}$

$\frac{3x}{3}=\frac{25}{2}\times \frac{1}{3}$

x = $\frac{25}{6}$

5 0

2 years ago

What is this answer<br><br> x-6=4

MissTica

Answer:

Step-by-step explanation:

cause ten minus six is 4

8 0

2 years ago

Read 2 more answers