Determine the value of the expression 2(x - 3) when x = 2.

Step-by-step explanation:

x1+x2 = (-1-√2)/3 + (-1+√2)/3

= -2/3

(x1) (x2) = (-1-√2)/3 × (-1+√2)/3

= -1/9

the equation :

x² -(-2/3)x + (-1/9) = 0

x² + ⅔ x - 1/9 = 0

Find the price of 1 wing:

9.50 / 5 = 1.90 per wing

Divide total spent by price per wing:

26.60 / 1.90 = 14

Answer: 14

Answer:

14

Step-by-step explanation:

$9.50 / 5 = $1.90

$26.60 / $1.90 = 14

Answer:

75

225÷3=75

Step-by-step explanation:

hshshshshs

Answer:

75

Step-by-step explanation:

Answer:

55

Step-by-step explanation:

20-9 = 11 then 5x11=55

Answer:

Slope is 0

Step-by-step explanation:

First, find the difference in the x and y of each point by subtraction.

8 - (-2) = 10

9 - 9 = 0

Because the y value doesn't change in between these two points, that indicates the slope is 0

Step-by-step explanation:

the line passes through (0,-2) and perpendicular to the graph of y=5x+7.

solution :

the slope = -1/5

the equation :

y+2 = -1/5 (x-0)

y = -1/5x - 2

Step-by-step explanation:

The volume = 15 × 4.2 × 9.9 = 623.7

please give me a brainliest answer

Answer:

Its actually 9.4 × 10²

Step-by-step explanation:

The answer is -9

I dont know the step-by-step used a calculator

Answer:

Yes

Step-by-step explanation:

1 yard is 3 feet. so 12 yards is 36 by 12*3

Answer:

-3

Step-by-step explanation:

You might find it easier to write -(11 - 8), which is -(3), or -3.

Answer:

8-11

Infront of 8 there will be+

so +8-11

- + = - so 8-11=-3

-3 is the answer of 8-11

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Let's find the slope of the line using the points (0 , 4) and (-8 , 0) from the given graph :

Slope (m) :

hence, the correct choice is C

Answer:

Emma is not correct. The correct ratio is 7:8.

Step-by-step explanation:

The ratio of boys to girls is 35:40, and if you simplify this you do not get 3:4 but 7:8.

Hope this helps!

Answer:

70 i think i dont know for sure

Step-by-step explanation:

40 x 70

__________

100

= 28

no answer bcz w bff fgfthsrgffd

Answer:

∅=45°

Step-by-step explanation:

[tex]2sin[/tex]∅=[tex]\sqrt{2}[/tex]

[tex]sin[/tex]∅=[tex]\frac{\sqrt{2} }{2}[/tex]

∅=[tex]sin^{-1} (\frac{\sqrt{2} }{2} )[/tex]

∅=45°

I hope this help you

Answer:

52 and 150?

Step-by-step explanation:

40+12=52

34+23+34+45+4

Simplify: 57+34+49

Simplify: 91+49

Add: 140

Answer:

She bought 27 treats.

Step-by-step explanation:

20.25 ÷ 0.75 = 27

Answer:

4500 cm²

Step-by-step explanation:

10 mm = 1 cm

So 450 × 10

= 4500 cm²

Answer:

The answer is photo.

Step-by-step explanation:

So:

167 - 66 = 101

So the total of Spain is 101

Now what is Marc’s value for Spain?

33 + 40 = 73

101 - 73 = 28

Marc’s value is 28.

Elli’s value for Portugal is unknown. We know Elli’s total is 57 and her value for Spain is 40. So: 57 - 40 = 17.

Elli’s value for Portugal is 17.

Now what is Marc’s total?

We know Spain is 28 and Portugal is 24. So add them:

28 + 24 = 52

Marc’s total is 52.

Now, what is Raisa’s total. We everyone else’s total and we know it all adds up to 167 so:

57 + 52 = 109

167 - 109 = 58

Raisa’s total is 58.

What is her Portugal value?

58 - 33 = 25

Her Portugal value is 25.

Answer:

X= 19/4

Step-by-step explanation:

Answer:

4,75

Step-by-step explanation:

x-9:(-4)=7

-9:(-4) = +2,25

x+2,25=7 / -2,25

x= 7-2,25

x= 4,75

Answer:

the answer is the third one 3

The slope is [tex]-\frac{3}{7}[/tex]

Answer:

x = 10

y = 5

Angle 1: 80 degrees

Angle 2: 45 degrees

Angle 3: 100 degrees

Angle 4: 35 degrees

Angle 5: 35 degrees

Angle 6: 45 degrees

Angle 7: 100 degrees

Step-by-step explanation:

Since we know angle 1 is equal to 80, we can say that angle 7 is 100, since a line makes 180 degrees. Because of the congruence statements, we can assume angle 3 is also 100 degrees. That means, that out of the 360 degrees that make up a 4 sided shape, we are left with 160. Those 160 are shared with angles 2,4,5 and 6.

To find these, we need to find 5 and 6. But we need to find x before we can solve for those. So take the equations from 5 and 6 to solve for x.

(3x+5)+(5x-5)+100=180

(3x+5)+(5x-5)=80

8x=80

x=10

Now plug x in to solve for angle 5 and 6

3(10)+5 = 35.   Angle 5

5(10)-5 = 45.   Angle 6

Now, because we know that there are only 160 degrees left to share between angles 2,4,5,6 we can say that angles 2+5=80 and 4+6=80. We already figures out what angle 5 and 6 are, so just substitute and solve.

(angle 2)+35 = 80

(angle 2) = 45 degrees

(angle 4)+45 = 80

(angle 4) = 35 degrees

To solve for y, set angle 7 equal to 100 degrees:

100 = y^2 + 15y

100 = y(y+15)

y = 5

Answer:

The height of Roger is 158cm

Step-by-step explanation:

All of them=158cm

They are 4.So,158^4=632cm

Height of 3 persons=155cm+158cm+161cm=474cm

Therefore the height of Roger is 632cm-474cm=158cm

The height of Roger with the mean of all of them is given is 158 cm.

Given that, the heights of Karina, Miya and Clint were 155cm, 158cm, and 161cm respectively.

In statistics, the mean refers to the average of a set of values. The mean can be computed in a number of ways, including the simple arithmetic mean (add up the numbers and divide the total by the number of observations).

Let the height of Roger be R.

Mean= 158 cm

We know that, mean =Sum of all the observations/Number of observations

⇒ (155+158+161+R)/4 =158

⇒ 474+R=632

⇒ R=632-474

⇒ R=158 cm

Hence, the height of Roger with the mean of all of them is given is 158 cm.

To learn more about an arithmetic mean visit:

https://brainly.com/question/15196910.

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Answer:

70m/s

Step-by-step explanation:

Velocity is distance by time so:

[tex]\frac{700}{10}=70m/s\\[/tex]