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3 years ago

Pls help!!! I WILL GIVE THE FIRST GOOD ANSWER BRAINLIEST!!

Mathematics

1 answer:

Natasha2012 [34]3 years ago

7 0

Answer:

Similar figures have the same shape but not necessarily the same size. Matching sides of two or more polygons are called corresponding sides, and matching angles are called corresponding angles.

Step-by-step explanation:

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What are the solutions to this problem? (use the quadratic formula and i) -2x^2+5x-11=0

Sever21 [200]

Step-by-step explanation:

The quadratic formula is:

$x = \frac{-b \pm\sqrt{b^2-4ac} }{2a}\\$

A, in this case, is -2.

B is 5

C is -11

x = $\frac{-5 \pm\sqrt{5^2-4(-2)(-11)} }{2(-2)}$

x = $\frac{-5\pm\sqrt{25 -88} }{-4}\\$

x = $\frac{-5\pm\sqrt{-63}}{-4}$

x = $\frac{-5+i\sqrt{63} }{-4}$ and $\frac{-5-i\sqrt{63} }{-4}$

We can break up the fraction to make it easier on our eyes

x = $\frac{5}{4}\pm\frac{i\sqrt{63} }{4}$

$\frac{\sqrt{63} }{4}$ ≈1.9843

x = $1.25 + 1.9843i\\1.25 - 1.9843i$

7 0

3 years ago

Read 2 more answers

Please help not sure at all on this thank you

Stella [2.4K]

3 and -3.....................,

7 0

3 years ago

Plss help

KonstantinChe [14]

$\frac{1}{2} \times 5 \times 16 \\ 40 \\ ke = 40joules$

if correct mark me as brainiest

4 0

3 years ago

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The entrance ramp to an arena rises 4.5 feet for every 50 feet of horizontal distance it covers. What is the slope of the ramp ?

mart [117]

Answer:

slope = .09

Step-by-step explanation:

slope = change in y/ change in x

4.5 ft/ 50 ft

.09

6 0

3 years ago

Read 2 more answers

What percent of the 2019 world population lives in Canada? Round the percentage to three decimal places.

dimaraw [331]

0.486 % of world population lives in canada

Solution:

From given,

World population = 7691 million

Canada population = 37.4 million

We have to find the percent of world population lives in canada

Let "x" be the percent of world population lives in canada

Therefore, from question,

x % of world population = canada population

x % of 7691 = 37.4

Solve the above equation for "x"

$x \% \times 7691 = 37.4\\\\\frac{x}{100} \times 7691 = 37.4\\\\7691x = 3740\\\\Divide\ both\ sides\ by\ 7691\\\\x = \frac{3740}{7691}\\\\x = 0.486$

Thus 0.486 % of world population lives in canada

8 0

3 years ago