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3 years ago

I will MARK THE CROWN IF SOMEONE ANSWERS THESES

Mathematics

1 answer:

kirza4 [7]3 years ago

8 0

Answer:

the last picture answer is

[alternate exterior angle ]

the third picture answer is

[alternate interior angle]

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What is the equation of the parabola, in vertex form, with focus at (1,-4) and<br> directrix x= 3?

lilavasa [31]

Answer:

Step-by-step explanation:

1) according to the definition of parabola d(focus)=f(directrix),

2) then

$d(focus)=\sqrt{(x-1)^2+(y+4)^2} \ and \ d(directrix)=|x-3|;$

$\sqrt{(x-1)^2+(y+4)^2} =|x-3|;$

3) after evoluation the equation:

(y+4)²=-4x+8 or (y+4)²= -4(x-2);

4) correct answer is D.

3 0

3 years ago

Y=-2x+5<br> X | Y<br> ____<br> 5<br> -1<br> 2<br> 0

Y_Kistochka [10]

Answers:

Step-by-step explanation:

Plug in the x into the equation and solve.

<h3>Value 1: X = 5</h3>

Y = -2(5) + 5

Y = -10 + 5

Y = -5

<h3>Value 2: X = -1</h3>

Y = -2(-1) + 5

Y = 2 + 5

Y = 7

<h3>Value 3: X = 2</h3>

Y = -2(2) + 5

Y = -4 + 5

Y = 1

<h3>Value 4: X = 0</h3>

Y = -2(0) + 5

Y = 0 + 5

Y = 5

I'm always happy to help :)

8 0

3 years ago

on this american flag the width of the blue rectangle is 2/5 the width of the red and white stripes. What fraction of the area o

Gnesinka [82]

The area of the blue rectangle is 8/11 of the flag

The area of a shape is the amount of space it occupies

The width is given as:

$Width = \frac 25$

<h3>Blue region </h3>

The blue region of the American flag has a dimension of 8 by 11 stars.

So, we have:

$8 : 11 = x : \frac 25$

Where x represents the length of the blue region.

Express the ratio as fractions

$\frac{8 }{ 11} = x \div \frac 25$

Multiply both sides by 2/5

$\frac{8 }{ 11} \times \frac 52= x$

$\frac{20}{ 11} = x$

Rewrite as:

$x =\frac{20}{ 11}$

The area is then calculated as:

$Area =\frac{20}{ 11} \times \frac 25$

$Area =\frac{40}{ 55}$

Simplify

$Area =\frac{8}{ 11}$

Hence, the area of the blue rectangle is 8/11 of the flag

Read more about areas at:

brainly.com/question/14137384

3 0

3 years ago

Can someone help me on these three

vivado [14]

Answer:

20) 2.084 meters

21) $75

22) 0.123 meters

23) 4 foot pieces

Step-by-step explanation:

20) divide the length by 4:

8.336 ÷ 4 = 2.084 meters

21) divide total cost by the amount of tickets:

39300 ÷ 524 = $75

22) subtract the smaller number from the greater number:

0.884 - 0.761 = 0.123 meters

23) the greatest common factor of 8 and 12 is 4, so he should cut each rope into 4 foot long pieces

8 0

3 years ago

The product of 6 and the sum of 3 times a number n and 5

olga nikolaevna [1]

Answer:

Step-by-step explanation:

6 (3n+5)

use the distributive property

18n+35

5 0

4 years ago