how many solutions does 6x−y=−1 6x+y=−1 ​

Answer:

slope intercept form is y = mx + b

It looks like y= x+3 is the only option in slope intercept form

Answer:

The intersect point 4,3 H

Step-by-step explanation:

Hope this helps. Have a fantastic day!

Answer:

x=35°   y= 75°   z = 70°

Step-by-step explanation:

Y = x+40   (known)

z = 2x    (known)

x + y + z = 180     (triangle property)

x + (x+40) + 2x = 180   (substitution)

4x + 40 = 180

4x = 140

x = 35

y = x + 40 = 75

z = 2x = 70

Answer:

A

Step-by-step explanation:

I am 100% sure it is A.

Answer: E C and A

Step-by-step explanation:

Answer: 20:3

Step-by-step explanation:

=) 2 cm = 20 mm

therefore, 20:3

Answer:

y=4x+7

Step-by-step explanation:

replace x by any one number and find out

Answer:

A

Step-by-step explanation:

graph calc

Answer:

y=-4/5x-2

Step-by-step explanation:

the y intercept is -2, because the line touches the y axis at -2. the line is the the 2nd and the 4th quadrant which make the slope negative. The rise is 4 and the run is 5, so its -4/5x.

Wayne should heat the oven to a temperature of 320°F for a recipe.

Algebraic expressions are mathematical statements with a minimum of two terms containing variables or numbers. Unknown variables, numbers, and arithmetic operators make up an algebraic expression.

Wayne has a recipe that says to heat the oven to 160°C.

To convert a temperature in degrees Celsius to degrees Fahrenheit, we can use the formula:

F = 1.8C + 32

Given that C= 160, we can substitute it into the formula:

F = 1.8(160) + 32

F = 288 + 32

F = 320

Therefore, he should heat the oven to 320°F.

Learn more about the algebraic expression here :

brainly.com/question/21751419

#SPJ5

Answer:

V T R (answer choice 4)

Step-by-step explanation:

Plane B is the side of the figure labeled B

The following points are on Plane B:

T, U, V, R, S

The only answer that contains three of these points is D (Answer choice 4)

Answer:

no

Step-by-step explanation:

3:2 is equal to 18:12 not 17

Answer:

x = 44

Step-by-step explanation:

its saying that x is less than 45 therefore its 44

Answer:

D

Step-by-step explanation:

x needs to be less then 45

Answer:

Step-by-step explanation:

A or C

Answer:

The solution to the system of equations represented by these two lines is:

Hence, option C i.e. (2, 0) is correct.

Step-by-step explanation:

Please note that the point of intersection between two lines is the solution of the system of equations.

From the graph, it is clear that two lines intersect at x = 2 and y = 0.

In other words, the point of intersection of the two lines is:

(x, y) = (2, 0)

Therefore, the solution to the system of equations represented by these two lines is:

Hence, option C i.e. (2, 0) is correct.

Answer:Can u sum it up?

Step-by-step explanation:

Answer:

47

Step-by-step explanation:

Step-by-step explanation:

(Base1 + Base2)/2 = midsegment

1. ((2x+15) + (6x-37))/2 = 3x+5

2. (8X-22)/2 = 3x+5

3. ((8x-22)/2))2 = (3x+5)2

4. 8x-22=6x+10

5. 2x-22=10

6. 2x-22+22=10+22

7. 2x=32

8. x=16

Now that you have solved for X add the value to line RS

RS = 2(16) + 15

RS = 32 + 15

RS = 47

Answer

the one in the bottom right

Step-by-step explanation:

Answer:

option 2

Step-by-step explanation:

Using the cosine and sine ratios in the right triangle and the exact values

cos30° = [tex]\frac{\sqrt{3} }{2}[/tex] , sin30° = [tex]\frac{1}{2}[/tex]

cos30° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{x}{20\sqrt{3} }[/tex] = [tex]\frac{\sqrt{3} }{2}[/tex] ( cross- multiply )

2x = 60 ( divide both sides by 2 )

x = 30

--------------------------------------------------

sin30° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{y}{20\sqrt{3} }[/tex] = [tex]\frac{1}{2}[/tex] ( cross- multiply )

2y = 20[tex]\sqrt{3}[/tex] ( divide both sides by 2 )

y = 10[tex]\sqrt{3}[/tex]

Answer:

The correct option is A.

Step-by-step explanation:

It is given that  DEFG is a parallelogram.

Draw the diagonals DF and EG. Place point H where DF and EG intersect.

In triangle HGD and HEF

,

∠HGD ≅ ∠HEF                            (Alternate Interior angle)

∠HDG ≅ ∠HFE                      (Alternate Interior angle)

By the definition of a parallelogram, the opposite sides of a parallelogram are congruent.

DG ≅ EF                                      (Opposite sides of parallelogram)

According to ASA postulate :

two triangles are congruent if any two angles and their included side are equal in both triangles.

So, by using ASA criterion for congruence we get,

ΔDGH ≅ ΔFEH

Since corresponding sides of congruent triangles are congruent, therefore

GH ≅ EH                      (CPCTC)

DH ≅ FH                     (CPCTC)

Answer:

v= 42

Step-by-step explanation:

To find the value of v, substitute the given values into the equation.

v= u +at

when u= 18, a= 6, t= 4,

v= 18 +6(4)

v= 18 +24

v= 42

Answer:

56  

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

8 ×1/2, if I'm wrong I am sorry

Answer:

1/8

Step-by-step explanation:

Answer:

that will be 4

Step-by-step explanation:

it goes by 4

Answer:

Solution of the proportion: [tex]\frac{x-6}{4}=\frac{2}{4}[/tex] is x=8.

Step-by-step explanation:

We need to find solution of the proportion: [tex]\frac{x-6}{4}=\frac{2}{4}[/tex]

For solving the equation, first we will multiply both sides by 4

[tex]\frac{x-6}{4}=\frac{2}{4}[/tex]

[tex]4\times \frac{x-6}{4}=4\times \frac{2}{4}[/tex]

[tex]x-6=4(\frac{2}{4})[/tex]

Simplifying

[tex]x-6=2[/tex]

Adding 6 on both sides

[tex]x-6+6=2+6x=8[/tex]

So, solution of the proportion: [tex]\frac{x-6}{4}=\frac{2}{4}[/tex] is x=8.

Note: Kindly recheck your options as correct answer is x =8.

Answer: 12 -8 = 4

Step-by-step explanation:

Answer:

Two weeks: $1570

Four weeks: $3140

One year: 9420

Step-by-step explanation:

Step-by-step explanation:

5x+y=7

20x+2=y

put y value in first equation

5x+(20x+2)=7

25x=5

x=5

now put x value to determine y

as we know 20x+2=y

20(5)+2=y

y=102

Answer:

just search and then thats it

Answer:

Yes they are equivalent

Answer:

First choice.

Step-by-step explanation:

When you solve the system and somehow get both sides two different value. That means both graphs are oarallel (graph of both equations). When two sides are different, we can say that there are no solutions.

Answer:

The value of sin Ф is [tex]\frac{5}{13}[/tex]

Step-by-step explanation:

In quadrant II, the value of

Let us solve the question

∵ sin²Ф + cos²Ф = 1

∵ cos Ф = [tex]\frac{-12}{13}[/tex]

→ Substitute it in the identity above

∴ sin²Ф + ([tex]\frac{-12}{13}[/tex])² = 1

∴ sin²Ф + [tex]\frac{144}{169}[/tex] = 1

→ Subtract [tex]\frac{144}{169}[/tex] from both sides

∵ sin²Ф + [tex]\frac{144}{169}[/tex]  - [tex]\frac{144}{169}[/tex]  = 1 - [tex]\frac{144}{169}[/tex]

∴ sin²Ф = [tex]\frac{25}{169}[/tex]

→ Take the square root of both sides

∵ √(sin²Ф)= ± [tex]\sqrt{\frac{25}{169}}[/tex]

∴ sin Ф = ± [tex]\frac{5}{13}[/tex]

∵ Ф is in quadrant II

∴ sin Ф is a positive value

∴ sin Ф = [tex]\frac{5}{13}[/tex]

∴ The value of sin Ф is [tex]\frac{5}{13}[/tex]

Answer:

A more intuitive characteristic of exponential decay for many people is the time required for the decaying quantity to fall to one half of its initial value. This time is called the half-life, and often denoted by the symbol t1/2. The half-life can be written in terms of the decay constant, or the mean lifetime.

Step-by-step explanation: