HELP: Can a triangle have 2 right angles in it? EXPLAIN your answer.

Answer:

(4,1)

Step-by-step explanation:

easiest method is to graph each equation and look for point(s) of intersection

Answer: x=4, y=1.

Step-by-step explanation:

[tex]\left \bigg \{ {\big{x+y=5} \atop\big {x^{2}-y^{2} =15}} \right.\\\\x+y=5\\x+y-y=5-y\\x=5-y\\\\(5-y)^{2} -y^{2} =15\\5^{2} -10y+y^{2} -y^{2}=15\\25-10y=15\\25-10y-25=15-25\\ -10y=-10\\-10y \div (-10)=-10 \div (-10)\\y=1\\\\x+y=5\\x+1=5\\x+1-1=5-1\\x=4[/tex]

Answer:

Percent increase = 25%

Step-by-step explanation:

Given that:

Old price of shoes = $65

New price of shoes = $81

Difference = 81 - 65

Difference = 16

Percent increase = [tex]\frac{Difference}{Old\ price}*100[/tex]

Percent increase = [tex]\frac{16}{65}*100[/tex]

Percent increase = 0.246 * 100

Percent increase = 24.6%

Rounding off to nearest whole number

Increase = 25%

Hence,

Percent increase = 25%

Given that,

An estimate of the height, H metres, of a tall building can be found  using the formula :

H = 3f + 15

where the building is f floors high.

f = 85

The real height of the building is 260 m.

To find,

The percentage error.

Solution,

We have,

H = 3f + 15

Put f = 85 in the above formula

H = 3(85) + 15

H = 270 m

Error,

[tex]E=\dfrac{270-260}{260}\times 100\\\\=3.84\%[/tex]

So, the required error is 3.84%.

Answer:

it would be ac=ab over ea=da

Step-by-step explanation:

Answer:

Slope: 3

Equation: y + 2 = 3(x + 1)

Step-by-step explanation:

Find the slope using (-1, -2) and (0, 1):

[tex] slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{1 - (-2)}{0 - (-1)} = \frac{3}{1} = 3 [/tex]

Slope (m) = 3

The equation can be represented in point-slope form, y - b = m(x - a)

Where,

(-1, -2) = (a, b)

m = 3

Plug in the values into y - b = m(x - a)

y - (-2) = 3(x - (-1))

y + 2 = 3(x + 1)

Answer:

y = 1/2x – 9/2 or y = 0.5x – 4.5

Step-by-step explanation:

same thing just in different forms

Answer:

28.57

Step-by-step explanation:

Answer:

51 = 1 x 51 or 3 x 17. Factors of 51: 1, 3, 17, 51.

ANSWER

x = -1

x= 1

x = 3

Step-by-step explanation:

the answer is this

Answer:

Allison tuvo el mejor récord

Step-by-step explanation:

Answer:

[tex] \sqrt{134 } = irrational \\ 0 = whole \: no. \: and \: integer. \\ hope \: it \: helps \\ plzz \: mark \: as \: brainliest....[/tex]

Answer:

5²

Step-by-step explanation:

hsjsjshsbsnbsbwbdbsbsb

Answer:

392x−3136

Step-by-step explanation:

Answer:

x = { - 2, 2 }

Step-by-step explanation:

Given

6x² - 24 = 0 ( add 24 to both sides )

6x² = 24 ( divide both sides by 6 )

x² = 4 ( take the square root of both sides )

x = ± [tex]\sqrt{4}[/tex] = ± 2

solution set is { - 2, 2 }

Answer:

y = 4x + 11

Step-by-step explanation:

From the question given above, the following data were obtained:

Coordinate = (–2, 3)

Slope (m) = 4

We can express the above in slope intercept form as follow:

Slope (m) = 4

x–coordinate (x₁) = –2

y–coordinate (y₁) = 3

y – y₁ = m(x – x₁)

y – 3 = 4(x – –2)

y – 3 = 4(x + 2)

y – 3 = 4x + 8

Make y the subject of the expression by rearranging

y = 4x + 8 + 3

y = 4x + 11

Therefore, the slope intercept form is

y = 4x + 11

Hey there!

• Fact/ Guide: The OPPOSITE of POSITIVE is NEGATIVE and OPPOSITE of NEGATIVE is POSITIVE, so this makes your answer a NEGATIVE since it’s the OPPOSITE of POSITIVE

• –10 is the OPPOSITE of 10

Answer: –10☑️

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

Random Note ⬇️

• NEGATIVES are BELOW 0

• POSITIVES are ABOVE 0

Answer:

the anwser is 27

Step-by-step explanation:

glad I could help!

Answer:

The perimeter of triangle = 20.3

Step-by-step explanation:

We need to find perimeter of the triangle with vertices at (−2, 3), (3, 6), and (2, −2)

The formula used to find perimeter is: [tex]Perimeter=Sum\:of\:length\:of\:all\:sides[/tex]

First we need to find length of each side using distance formula:

[tex]Distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

Find distance between (−2, 3), (3, 6)

We have: [tex]x_1=-2,y_1=3, x_2=3,y_2=6[/tex]

Putting values and finding distance

[tex]Distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\Distance=\sqrt{(3-(-2))^2+(6-3)^2}\\Distance=\sqrt{(3+2)^2+(6-3)^2}\\Distance=\sqrt{(5)^2+(3)^2}\\Distance=\sqrt{25+9}\\Distance=\sqrt{34}\\Distance = 5.83[/tex]

So, The distance between (−2, 3), (3, 6) is 5.83

Find distance between (3, 6),(2,-2)

We have: [tex]x_1=3,y_1=6, x_2=2,y_2=-2[/tex]

Putting values and finding distance

[tex]Distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\Distance=\sqrt{(2-3)^2+(-2-6)^2}\\Distance=\sqrt{(1)^2+(-8)^2}\\Distance=\sqrt{1+64}\\Distance=\sqrt{65}\\Distance=8.06[/tex]

So, The distance between (3, 6),(2,-2) is 8.06

Find distance between (-2,3),(2,-2)

We have: [tex]x_1=-2,y_1=3, x_2=2,y_2=-2[/tex]

Putting values and finding distance

[tex]Distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\Distance=\sqrt{(2-(-2))^2+(-2-3)^2}\\Distance=\sqrt{(2+2)^2+(-2-3)^2}\\Distance=\sqrt{(4)^2+(5)^2}\\Distance=\sqrt{16+25}\\Distance=\sqrt{41} \\Distance=6.40[/tex]

So, The distance between (-2, 3),(2,-2) is 6.40

So, The length of side 1 = 5.83

The length of side 2 = 8.06

The length of side 3 = 6.40

The perimeter of triangle will be:

[tex]Perimeter=Sum\:of\:length\:of\:all\:sides\\Perimeter=5.83+8.06+6.40\\Perimeter=20.29\approx 20.3[/tex]

So, The perimeter of triangle = 20.3

Answer:

what is the question...?

Step-by-step explanation:

Answer:

its c if not c its d

Step-by-step explanation:

hope that helps

Answer:

its C. im doing test to i saw different page

Step-by-step explanation:

diff pge

Answer:

There would be 12 blue marbles if there is 15 white marbles

Step-by-step explanation:

Please correct me if I’m wrong!

Answer:

White roses - 7

Red roses - 17

Step-by-step explanation:

Set up proportional equations

White roses = x

Red roses = 3x - 4

Set equal to 24

x + 3x - 4 = 24

4x - 4 = 24

4x = 28

x = 7

x is white roses, so there are 7

Plug x value into red rose equation

3(7)-4

21-4 = 17 red roses

Check

17+7 = 24

Answer:

7.6%

Step-by-step explanation:

1141/15000 × 100 = 7.60667

but it's not an option...

the difference between 15000 and 16141 is 1141

Step-by-step explanation:

The prime numbers is

A. 17

Answer:

the prime number on the thing is 17