I have no idea what the answer is please help soon

Answer:

72.2

Step-by-step explanation:

Monday: 78.8

Tuesday: 78.8 - 6.6 = 72.2

Answer:b

Step-by-step explanation:

The equation for the perpendicular bisector of line segment XY is 2x + y = 7, the correct option is A.

The standard equation of a line is given by

y = mx+c

Here m is the slope and c is the y intercept

The slope can be determined by

m = (y₂ -y₁)/(x₂ -x₁)

The line segment XY  has the points  X(5, 7) and Y(–3, 3).

The slope of the line is,

m = ( 3 - 7) /( -3 - 5)

m = -4 / -8

m = 1 /2

The product of the slope of a line and a line perpendicular to it is -1.

( 1/2) * m' = -1

m' = -2

As it is a bisector , the midpoint of X and Y will be the point on the line.

Midpoint of XY is ( ( 5 -3)/2 , (7+3)/2 )

Midpoint of XY is ( 1 , 5)

The equation of the perpendicular bisector of line segment XY is,

y = -2x +c

5 = -2 + c

c = 7

So, the equation is,

y = -2x +7

2x +y = 7

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Answer:

x= (-3 +- sqrt3)/2

Step-by-step explanation:

Exact Form:

x=(-3± √ 3)/2

Decimal Form:

x = − 0.63397459 … , − 2.36602540 …

Answer:

21

Step-by-step explanation:

21

Answer:

21

Step-by-step explanation:

we can simplify -3×4÷(-6) which is equivalent to =2

so grab the 19 and add the simplified expression which is the 2 so 19+2= 21

Answer:

I think it's 5 down votes

9514 1404 393

Answer:

  (-9, -3)

Step-by-step explanation:

For x=-9, we have f(x) = 6.

For x=-9, -1/2f(x) = -1/2(6) = -3. The corresponding point is (-9, -3).

Answer:

A. Division property of inequality.

Step-by-step explanation:

Let be [tex]2\cdot x > 10[/tex], we proceed to show the appropriate procedure to step 4:

1) [tex]2\cdot x >10[/tex] Given

2) [tex]x > 5[/tex] Compatibility with multiplication/Existence of multiplicative inverse/Associative property/Modulative property/Result. (Division property of inequality)

In consequence, the division property of inequality which states that:

[tex]\forall\, a, b, c \in \mathbb{R}[/tex]. If [tex]c > 0[/tex], then:

[tex]a> b\,\longrightarrow a\cdot c > b\cdot c \,\lor\, a<b \longrightarrow a\cdot c < b\cdot c[/tex]

But if [tex]c < 0[/tex], then:

[tex]a> b\,\longrightarrow a\cdot c < b\cdot c \,\lor\, a<b \longrightarrow a\cdot c > b\cdot c[/tex]

Hence, correct answer is A.

Answer:

30 centimeters

Step-by-step explanation:

You have to find the scaling of the lengths first, and to do that, you divide the 20 by 8, which would be 2.5. After, you multiply 2.5 by 12 to get your answer.

Answer:

30

Step-by-step explanation:

20 divided by 8 is 2.5, so you know that the triangle expanded by 2.5.

Multiply the small triangle's length by 2.5 to get your answer of 30.

Answer:

Step-by-step explanation:

6x-10x^2+3-(5x^2+3x-4)

when there is a - in front of an expression in (), change the sign of each term in the expression

6x-10x^2+3-5x^2-3x+4

now collect like terms

3x-10x^2+3-5x^2+4

3x-15x^2+3+4

3x-15x^2+7

now use the commutative property to reorder the terms

-15x^2+3x+7

=-15x^2+3x+7

Answer:

4

Step-by-step explanation:

Answer: 3 4/5

Step-by-step explanation:

Hope this helps, mind giving me the brainliest? :)

Answer:

B. formula title

Step-by-step explanation:

i got it right

Answer:

no you can only use side side side when all of your triangles are equilateral triangles

Step-by-step explanation:

Answer:

f(x)= (x - 1)^2+2 = 1

Step-by-step explanation:

Write F ( x ) = ( x − 1 ) 2 + 2 as an equation.

y=(x−1)2+2

Use the vertex form, y = a ( x − h )^2 + k , to determine the values of a , h , and k .

a = 1

h = 1

k = 2

Since the value of a is positive, the parabola opens up. Opens Up

Find the vertex ( h , k ) .

(1,2)

Find p , the distance from the vertex to the focus.

[tex]\frac{1}{4}[/tex]

( 1, [tex]\frac{9}{4}[/tex] )

Find the axis of symmetry by finding the line that passes through the vertex and the focus.

x = 1

I hope this helps.

Answer:

the one pair of socks cost $2 dollars.

Answer:

26

Step-by-step explanation:

the formula for this is A squared plus B squared equals C squared

Answer:

26

Step-by-step explanation:

10(10)+(24)(24)

100+576

676

out of the square root

it is 26

Answer:

$11,900

Step-by-step explanation:

Answer:

The answer is x > -1

Step-by-step explanation:

This is because if it were a closed circle, it would have to the include the inequality -1 but since it is an opened circle, that inequality is not included. So in conclusion, Any number could be used to represent x as long as it is a greater number than -1. I hope this makes sense.

x>-1  and  x<-2 are two inequalities that would have the solution set as graphed.

a relationship between two expressions or values that are not equal to each other is called 'inequality.

x>-1  and  x<-2 are the solutions of the given graph

This is because if it were a closed circle, it would have to the include the inequality -1 but since it is an opened circle, that inequality is not included.

Any number could be used to represent x as long as it is a greater number than -1.

Hence, x>-1  and  x<-2 are two inequalities that would have the solution set as graphed.

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Answer:

6 to 8 percent

Step-by-step explanation:

Answer:

624.91

Step-by-step explanation:

Answer:18.1

Step-by-step explanation:

Answer:

w equals negative 1one

Answer:

The answer is 2

Step-by-step explanation:

[tex](2 + 6) \div 2 {}^{2} \\ \\8 \div 4 = 2[/tex]

Answer: 16 students will enter the final round of the spelling bee.

Answer:

The tip is $7,00 and the equation is C = 13.77p

Step-by-step explanation:

46.95 x 1.15=53.9925

= ans-46.95 = 7.04

or

46.95/100

= ans x 15 = 7.04

Answer:

-1/4

Step-by-step explanation:

For this equation, first divide both sides by 1.2, to get x+4y=15. Then, subtract x from both sides. Now, with 4y=-x+15, divide by 4. You should get y=-1/4x+15/4 (15/4=3 3/4 or 3.75). The formula y=kx=b, where k is slope, means the slope is -1/4.