Work out the value of x. And give a reason for your answer

Answer:

wiwheieneodjdhdjsoeke8ejso

Answer:

-3

Step-by-step explanation:

f(-2) = (-2)^2 + 10 = 14 -> (-2, 14)

f(-1) = (-1)^2 + 10 = 11 -> (-1, 11)

(11-14)/(-1-(-2)) = -3/1 = -3

Answer:

Factors

Step-by-step explanation:

Factor*factor=product

Answer:

The numbers to be multiplied are generally called the "factors". The number to be multiplied is the "multiplicand", and the number by which it is multiplied is the "multiplier". ... The result of a multiplication is called a product.

Step-by-step explanation:

Step-by-step explanation:

If the price increases 3/4 per share, the new price of the stock =

6¾ + ¾ =

27 /4 + ¾ =

30 /4 =

15/2 or 7½

The new price of the stock which increases 3/4 per share is $ 7 1/2.

Given data:

A stock is selling on a stock exchange for 6 3/4 dollars per share.

If the price of the stock increases by 3/4 dollars per share, you can add 3/4 to the current price of 6 3/4 dollars per share:

6 3/4 + 3/4

To add the whole numbers and fractions separately:

6 + 0 + 3/4 + 3/4

Adding the whole numbers and fractions:

6 + 1 1/2

A = 7 1/2

Hence, the price of the new stock is $ 7 1/2

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Answer:

$5

Step-by-step explanation:

12 pounds = $6

1 pound = $6/12

1 pound = $0.50

10 pounds = $0.50 x 10

10 pounds = $5.00

-Chetan K

Answer:

59,475,643

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

The relation is not a function. All you need to solve this problem is the following: Relations are NOT functions when the domain values repeat!

Note: The domain is the set of input values. The domain is x, the first number in the pair. For example, in the pair (0, 2), the domain is 0.

In the relation {(0,2),(2,4),(1,7),(2,5)}, 2 is repeated two times, which, by definition, means that the relation is not a function.

Answer:

Jamar can ride his bike 20 miles in 1 hour.

He went 6 miles in 36 minutes.

Answer:

Step-by-step explanation:

2x - 3 = x + 5 and y + 1 = 7

⇒ 2x - x = 5 + 3 ⇒ x = 8 and y = 7 - 1 ⇒ y = 6

Answer:

Hope this helps :)

Step-by-step explanation:

x+x-13=88

2x-13=88

2x-13+13=88+13

2x=101

101/2 = 50.5

Answer:

[tex]\boxed {\boxed {\sf (5, -3)}}[/tex]

Step-by-step explanation:

We are asked to solve the system of equations by substitution. We must isolate a variable and plug it into the other equation.

We are given these 2 equations;

[tex]2x-3y=19[/tex]

[tex]x-2y=11[/tex]

1. Isolate a Variable

We can easily isolate x in the 2nd equation. 2y is being subtracted from x. The inverse operation of subtraction is addition. Add 2y to both sides of the equation.

[tex]x-2y+2y=11 +2y \\x= 11+2y[/tex]

2. Substitute and Solve for y

x is equal to 11 + 2y, so we can substitute this expression in for x in the 1st equation.

[tex]2x-3y=19[/tex]

[tex]2(11+2y)-3y=19[/tex]

Now we can solve for y by isolating the variable First, distribute the 2. Multiply each term in parentheses by 2.

[tex](2*11) + (2*2y) -3y = 19[/tex]

[tex]22 + 4y-3y = 19[/tex]

Combine the like terms.

[tex]22+y=19[/tex]

22 is being added to y. The inverse operation of addition is subtraction. Subtract 22 from both sides of the equation.

[tex]22-22+y=19-22\\y= 19-22 \\y= -3[/tex]

3. Solve for x

We know that y is equal to -3, so we can plug it back into either original equation and solve for x. Let's use the 2nd equation.

[tex]x-2y=11[/tex]

[tex]x-2(-3)=11[/tex]

Multiply -2 and -3.

[tex]x+6=11[/tex]

6 is being added to x. The inverse operation of addition is subtraction. Subtract 6 from both sides of the equation.

[tex]x+6-6=11-6\\x=11-6 \\x=5[/tex]

We found that y=-3 and x=5. Coordinate points are written as (x,y), so the solution for this system of equations is (5, -3).

Answer:

-7 x 1

hope that helped <3

-7 times one is equal to minus seven.

Two or more expressions with an Equal sign is called as Equation.

We need to find what times what is -7.

Whenever we see a times in an expression its nothing but multiplication.

Multiplication is a method of finding the product of two or more numbers

We need to find the two numbers whose product will be equal to minus seven.

We know that there is only one possibility.

-7×1=-7

and 1×-7=-7

Hence ,-7 times one is equal to minus seven.

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Answer:

$95.89875

Step-by-step explanation:

The original price of the necklace is 119.5. And we are subtracting 25% from this. 119.5 - 25% = 119.5 - 1/4 since 25% is 25/100 which is also 1/4.

So without tax, the price of the necklace is 119.5 - 29.875 which is 89.625.

The tax is 7%. So we should add 89.625 to 7%. This is complicated, but it should result in 95.89875.

If we round this to the nearest cent, it should be $95.9.

Answer:

2

Step-by-step explanation:

Calculate the prime factors of 8 and 10, than find the greatest common factor (greatest common divisor (GCD)) of the numbers by matching the biggest common factor of 8 and 10.

8 = 1, 2, 4, 8

10 = 1, 2, 5, 10

The Greatest Common Factor of both numbers is 2,...

Chow,...!

Answer:

-4.57142857143 rounded to -4.57 or -4.6

Step-by-step explanation:

calculator

Answer: 69.3

Step-by-step explanation: when u see 27 you divied by 378 end get 4 finel answer 4!

Answer:

6 floors per 1 minute

2 and a half pancakes per minute

etc.

Step-by-step explanation:

Simplify to the ratios lowest form and the compare.

Measurement = 10 + 10 + 9

= 29cm

-3x + 50 = 101

       -50   -50      subtract 50 from both sides, 50's cancel out from the left.

___________     solve for 101 - 50.

-3x = 51

___  ___              divide -3 on both sides, -3's cancel out on the left.

-3     -3                 solve for 51 ÷ -3.

x = -17, is the answer.

Hope this helps! Let me know if you have any other questions related to this problem. :)

Answer: its a integer...

Step-by-step explanation: it cant be a whole number its negitive and also doesn't look like a rational number those are mostly fractions decimals ect its prob a interger

Answer:

To get an expression relating to x you need to have x alone on one side of your equation. ie x =

Try this:

rx - st = r

remove st from the rx side

rx = r + st

now divide by r

x = (r + st)/r

You now have your expression relating to x

Applying the Pythagorean Theorem and using the rules of significant digits, the length of the other leg of the right triangle is approximately 2.61 meters.

Recall:

Using the Pythagorean Theorem, we are going to find the length of the other leg of the triangle that has:

[tex]2.27^2 + b^2 = 7.76^2\\\\b = \sqrt{7.76^2 - 2.27^2} \\\\b = 2.607[/tex]

Therefore, applying the Pythagorean Theorem and using the rules of significant digits, the length of the other leg of the right triangle is approximately 2.61 meters.

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Answer:

The function has a maximum of 2 at [tex]x=1[/tex]

Step-by-step explanation:

The graph is a vertical parabola. The minimum, or min is when the parabola opens up, the vertex is at the lowest point on the graph. The maximum, or maxis when the parabola opens down, the vertex is the highest point on the graph.

Since it asks for "[tex]x[/tex]", we can tell that it is 1. If you look at the x-axis in the graph at where the point lies, you will find that [tex]x=1[/tex]

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Answer:

110

Step-by-step explanation:

If 12% studied Spanish, then 88% did not. The ratio of those who did not to those who did is ...

  88 : 12 = 22 : 3

Then the number of students who did not study Spanish is ...

   (22/3)×15 = 110 . . . . did not study Spanish

22:3 is a reduction of the ratio 88:12, by factoring 4 from each number. 15 is the number of students corresponding to 12% of the class. It is found in the problem statement. Essentially, we're saying that we want to know the number of students in the other 88% of the class, given that 15 students make up 12% of the class. There are many ways to write equations for this. I think this proportion is the easiest to think about.

If F is the size of the freshman class, and n is the number Not studying Spanish, you have 12%·F = 15, and 15 + N = F. You can solve the first equation for F, then the second equation for N, which is what you really want to know. F = 15/.12 = 125; N = F -15 = 125-15 = 110.

These two equations are reasonably straightforward, but to my lazy way of thinking, it is an extra equation and an extra calculation that are not needed to get to the answer.

You don't need to reduce the ratio from 88/12 to 22/3 to work the problem using ratios. The only reason for doing that is so there is a 3 in the denominator that cancels a factor of 3 in 15, so the only math you really need to do is 22·5 = 110. It helps immensely to know your multiplication tables, and to be able to recognize multiples of 2 and 4.

Step-by-step explanation:

percentage of students not to take spanish is 4%

answer is 696*4/100=27.84

so 28 students not to take spanish

9514 1404 393

Answer:

Step-by-step explanation:

17c. We cannot see the entire diagram, but based on what we can see, if we assume that segments FG and DH are parallel, then angles D and G correspond. The similarity statement is then ...

  ΔDEH ~ ΔGEF

__

Corresponding angles are congruent, and are listed in the same order in the similarity statement. This means we have ...

  ∠D ≅ ∠G = 89° . . . . answer to 17b

  ∠E ≅ ∠E = 69°

  ∠H ≅ ∠F = 22° . . . . answer to 17a

_____

Additional comment

The second choice listed for part 17c can be rejected simply on the basis that ΔEGH does not exist in the figure. Points G and H are not in the same triangle.

[tex]\\ \sf\longmapsto -14<-6x-2<22[/tex]

[tex]\\ \sf\longmapsto -14+2<-6x-2+2<22+2[/tex]

[tex]\\ \sf\longmapsto -12<-6x<24[/tex]

[tex]\\ \sf\longmapsto -2<-x<4[/tex]

[tex]\\ \sf\longmapsto 2>x>-4[/tex]

Answer:

45 and 135 A

Step-by-step explanation:

3x + (10x - 15) = 180

Express in the form of P/Q

i) 0.675

= 675/1000

(ii) 0.32

= 32/100