Pls help me in this too

Answer:

B .-12 and -12

Step-by-step explanation:

it is because when we multiply two -digit the answer is in +

so like in the same -12 * -12=144

And when we add the digit we get -24

Hence, it is proved

Answer:

STAY SAFE STAY UGLY.

Step-by-step explanation:

BY ELON MUSK

Answer:

[tex] = x_{1} = \frac{1 - \sqrt{65} }{4} . x_{2} = \frac{1 + \sqrt{65} }{4} [/tex]

Step-by-step explanation:

[tex]2x ^{2} - x - 8 = 0[/tex]

[tex]x = \frac{ - ( - 1)± \sqrt{( - 1 {)}^{2} } - 4 \times 2 \times ( - 8)}{2 \times 2} [/tex]

[tex]x = \frac{1± \sqrt{1 + 64} }{4} [/tex]

[tex]x = \frac{1± \sqrt{65} }{4} [/tex]

[tex] = x_{1} = \frac{1 - \sqrt{65} }{4} . x_{2} = \frac{1 + \sqrt{65} }{4} [/tex]

Answer:

[tex]x=\frac{-1+-\sqrt{65}}{4}[/tex]

Step-by-step explanation:

Using the quadratic formula,

[tex]x=\frac{-b+-\sqrt{b^{2}-4ac}}{2a}\\x=\frac{-1+-\sqrt{-1^{2}+64}}{4}\\x=\frac{1+-\sqrt{65}}{4}\\[/tex]

Answer:

(4, 4)

Step-by-step explanation:

A (5,7) and B (3,1)

To find the midpoint of a line segment, use this formula.

[tex]midpoint =(\frac{x^1+x^2}{2} ,\frac{y^1+y^2}{2} )[/tex]

(x1, y1) = coordinates of first point

(x^2, x^2) = coordinates of second point.

Basically, you add the coordinates x^1 and x^2, then divide the sum by 2. That would be your first coordinate.

Next, you add y^1 and y^2, then divide the sum by 2. That would be your second coordinate.

[tex]midpoint-(\frac{5+3}{2} ,\frac{7+1}{2})[/tex]

[tex]midpoint = (4, 4)[/tex]

Therefore, the midpoint of segment AB is (4,4).

Let me know if you have any further questions.

The midpoint of segment AB, when point A is located at (5, 7) and point B is located at (3, 1), is (4, 4).

The midpoint formula states that the coordinates of the midpoint between two points [tex](x_1, y_1)[/tex] and [tex](x_2, y_2)[/tex] are given by:

Midpoint = [tex]((x_1 + x_2)/2, (y_1 + y_2)/2)[/tex]

The coordinates of point A are given as (5, 7), and the coordinates of point B are given as (3, 1).

Plugging in the coordinates:

x-coordinate of the midpoint = (5 + 3)/2 = 8/2 = 4

y-coordinate of the midpoint = (7 + 1)/2 = 8/2 = 4

Therefore, the midpoint of segment AB is (4, 4).

Thud, the midpoint of segment AB, when point A is located at (5, 7) and point B is located at (3, 1), is (4, 4).

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Answer:

Step-by-step explanat15 - 4: 1/4 + 2 =

15 - 4 × 4 + 2 =

15 - 16 + 2 =

-1 + 2 =

1ion:

The value of the given expression will be 1.

An expression in math is a sentence with a minimum of two numbers or variables and at least one math operation. This math operation can be addition, subtraction, multiplication, or division.

Given that, 15–4 Divided 1/4 + 2 =

Converting the statement into n mathematical expression, we get

15-4÷1/4+2

= 15-4×4+2

= 15-16+2

= -1+2

= 1

Hence, The value of the given expression will be 1.

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Answer:

To convert the measurements of metric system into another units of metric system we have to either multiply it by 10, 100, 1000, 10000, 100000, etc or divide by 10, 100, 1000, 10000, 100000, etc.

If we have to convert bigger unit into smaller unit then we have to multiply the unit by the multiples of 10, then the decimal point is shifted to right by 1 or 2 or 3 or 4 , etc. places.

For example, 1.2 kg is converted into g so we have to multiply it by 1000, so decimal point is shifted to right by 3 places, i.e.,

1.2 x 1000 = 1200 g

If we have to convert smaller unit into bigger unit then we have to divide the unit by the multiples of 10, then the decimal point is shifted to left by 1 or 2 or 3 or 4 , etc. places.

For example, 12 cm is converted into m so we have to divide it by 100, so decimal point is shifted to left by 2 places, i.e.,

12 / 100 = 0.12 m  

Step-by-step explanation:

Answer:

1) [tex]\frac{x+3}{2x-5}=\frac{3}{2}[/tex]   (x ≠ 2,5)

=> 2(x + 3) = 3(2x - 5)

⇔ 2x + 6 = 6x - 15

⇔ 4x = 6 + 15

⇔ 4x = 21

⇔ x = 5,25

2) [tex]\frac{5y-2}{2y+8}=\frac{5}{6}[/tex] (y ≠ -4)

⇒6( 5y - 2) = 5(2y + 8)

⇔30y - 12 = 10y + 40

⇔ 20y = 52

⇔ y = 2,6

3) the denominator of the rational number is x (x ≠ 0)

because the denominator is greater than the numerator by 6

=> the numerator is x - 6

If the numerator is decreased by 1 and the denominator increased

by 1 , the number obtained is 1/3. so we have:

[tex]\frac{x-7}{x+1}=\frac{1}{3}[/tex]

⇒ 3(x - 7) = x + 1

⇔ 3x - 21 = x + 1

⇔ 2x = 22

⇔ x = 11

with x = 11 => the rational number is 5/11

4) the number we need to find is ab (a ≠ 0)

because Sum of the digits of this number is 8

=> a + b = 8 (*)

When we interchange  the digits , it is found that the resulting new number is less than the  original number by 18, we have:

ab - ba = 18

⇔ 10a + b - (10b + a) = 18

⇔ 9( a - b) = 18

⇔ a - b = 2 (**)

(*)(**) => a + b = 8

             a - b = 2

=> a = 5

    b = 3

=> the original number is 53

5) the present Arjun's age is x (years old)( x, y E N*)

the present Shriya's age is y

because now, Arjun is twice as old as Shriya => x = 2y

Five years ago, his age was three  times Shriya’s age, we have:

=> x - 5 = 3(y - 5)

⇔ x - 5 = 3y - 15

⇔ 3y - x = 10

but x = 2y => y = 10

=> x = 20

so now, Arjun is 20 years old, Shriya is 10 years old

Step-by-step explanation:

Use the Pythagorean theorem to solve for the diagonal distance

Diagonal = sqrt(50^2 + 150^2)

Diagonal distance = sqrt(25,000)

Diagonal distance = 158.11 feet

Round to 158 feet.

If the stayed on the sidewalk they would walk 50 + 150 = 200 feet.

The distance they saved = 200-158 = 42 feet

Answer: 42 feet.

Answer:

x>1

Step-by-step explanation:

m at h w ay

Answer:

A

Step-by-step explanation:

Given

- k - (- 8k + 7) ← distribute parenthesis by - 1

= - k + 8k - 7 ← collect like terms

= 7k - 7 → A

Answer:

7k + 7

Step-by-step explanation:

-k - (-8k + 7)

-k + 8k + 7

7k + 7

give brainliest please I need it to level up

Thinner candle:

y = length of the candle

x = rate it burns at every minute

y = -1/8x + 30

Thicker candle:

y = length of the candle

x = rate it burns at every minute

y = -1/10x + 30

To find the length after 3 hours:

y = -1/8(180) + 30

y = -1/10(180) + 30

Answer:

-7/2

Step-by-step explanation:

The formula for slope is [ y2-y1/x2-x1 ].

-19-(-12)/-13-(-15)

-7/2

Best of Luck!

∠1 and ∠2 are supplementary angles. m∠1 is 4y+7, and m∠2 is 9y+4. Find m∠2.

The sum of supplementary angle is 180°

First, solve for the value of y.

Then, plug and substitute the value y = 13 to find the m∠2.

The measure of angle 2 is 121 degrees.

Given:

[tex]m\angle1=4y+7\\m\angle2=9y+4[/tex]

Recall: Supplementary angles are angles whose sum equals [tex]180^{o}[/tex]

To solve this problem, create an equation to find the value of x:

Thus:

[tex]m\angle1 +m\angle2=180[/tex]

Therefore:

[tex](4y+7)+(9y+4) = 180\\[/tex]

Solve for y:

[tex]4y+7+9y+4 = 180\\\\[/tex]

Add like terms:

[tex]13y+11 = 180\\\\[/tex]

Subtract 11 from both sides

[tex]13y+11 - 11= 180 - 11\\13y = 169[/tex]

Divide both sides by 13

[tex]\frac{13y}{13} = \frac{169}{13} \\y = 13[/tex]

Find the m∠2 by substituting [tex]y = 13[/tex] into [tex]9y +4[/tex]

[tex]m\angle= 9(13)+4\\m\angle = 121^{o}[/tex]

Therefore, m∠2 = 121 degrees.

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Answer:

12 sides

Step-by-step explanation:

The sum of the exterior angle and the interior angle = 180° , then

3x + x - 20 = 180

4x - 20 = 180 ( add 20 to both sides )

4x = 200 ( divide both sides by 4 )

x = 50

Then

exterior angle = x - 20 = 50 - 20 = 30°

The sum of the exterior angles of a polygon = 360°

The number of sides n is sum divided by 1 exterior angle , that is

n = 360° ÷ 30° = 12

Answer:

2

Step-by-step explanation:

you multiply the 6 and 5 to the parethinsis and simplify

Answer:

33

Step-by-step explanation:

The amount of child tickets sold this day is x, when the amount of adult tickets is 4x

5.2x- the money from children, 9*4x=36x- the money from adults,

5.2x+36x= 1359.6

41.2x=1359.6

x=33- the amount of child tickets

Width = 2w , Length = w+5 , perimeter = 40

Perimeter of rectangle = 2 (Length + Width)

P= 2 (L + w)

40 = 2 [ (w+5) + (2w) ]

40 = 2 ( 3w+5)

40= 6w +10

6w= 40 – 10

6w= 30

w = 30/6

w = 5

Width = 2w = 2(5) = 10

Length = w + 5 = 5+5 = 10

I hope I helped you^_^

Answer:

functional relationship

Step-by-step explanation:

2 goldfish per month

how many in a year

12 months in a year

24 goldfish in one year

Answer:

pura na hune kaam hunxa vanera jabarjasti garnu. maybe

Answer:

x = 37

m∠a = 104°

m∠b = 76

Step-by-step explanation:

Two supplementary angles will add up to 180 degrees. We can create an equation and solve for x.

3x - 7 + 2x + 2 = 180

~Combine like terms

5x - 5 = 180

~Add 5 to both sides

5x = 185

~Divide 5 to both sides

x = 37

~Find the measure of angle A

3(37) - 7

104

~Find the measure of angle B

2(37) + 2

76

Best of Luck!

An arithmetic sequence with at least four terms is 1, 5, 9, 13, 17, 21....

where,

a = first term = 1

n = number of terms

d = common difference = 5 - 1 = 4

From the example given, the first term is 1, and the common difference is 4

Read related link on:

https://brainly.com/question/24456969

Answer:

-66

Step-by-step explanation:

11 × (-6) = -66

Answer: respuesta A EN 40000 millas

en  EN 1000000B

Step-by-step explanation

Answer: The mean will decrease

Step-by-step explanation:

Answer:

the other person is correct

Step-by-step explanation:

Answer:

100

Step-by-step explanation:

Here, the series is in A.P.

first term a = 359

common difference d = 352-359 = -7

therefore, 38th term = a + [n-1] d

= 359 + (38 -1) (-7)

= 359 - 259

= 100