If 3x - 7 = 2, then x equals?

Answer:

-88

Step-by-step explanation:

If a=2, we can say that -[tex]a^{2}[/tex] would be -4.

Secondly, if a=2 and b=-6 we can assume that 4ab would become -48.

Finally, if b=-6 we can say that -[tex]b^{2}[/tex] would become -36.

Adding all of those up gives you -88, your answer.

Answer:

h = 5

Step-by-step explanation:

h + 9 = 14        

Subtract 9 from both sides

h +9  - 9 = 14 - 9

         h = 5

Answer:

5

Step-by-step explanation:

9+5=14

Answer:

30 feet

Step-by-step explanation:

3x8=24 ft

3/4x*8= 6 ft

Answer:

So this is free points right

Step-by-step explanation:

Sorry I will answer your latest questions

Answer:

81

Step-by-step explanation:

A composite number has factor more than just one and itself.

Factors of 81=

1, 3, 9, 27, 81

9514 1404 393

Answer:

  $1571

Step-by-step explanation:

If we assume that y is profit in dollars, the maximum value of y is revealed by a graph to be ...

  ymax = $1571

The maximum profit the company can make is $1571 at a selling price of $45 each.

_____

The function can be written in vertex form as ...

  y = -(x^2 -90x) -454

  y = -(x^2 -90x +45^2) -454 +45^2

  y = -(x -45)^2 +1571

Because the leading coefficient is negative, we know this vertex represents a maximum. (x, y) = (45, 1571) at the vertex. Maximum profit is $1571.

Answer:

7/10 70%

Step-by-step explanation:

based on the coin flips, 7 out of 10 of the results have at least 2 female puppies. I hope this is correct :)

Answer: A

Step-by-step explanation: took the quiz and got it right

Answer:

el precio de la biciclete entre 3 es lo que van a pagar cada quien.

Step-by-step explanation:

Answer:

35.36

Step-by-step explanation:

For Class A

Class A has 11 pupils

The mean score for Class A is 32.

The total score of the students =

Mean score × Number of pupils

= 32 × 11

= 352

For Class B

Class B has 14 pupils. The mean score for class B is 38.

The total score of the students =

Mean score × Number of pupils

= 38 × 14

= 532

Total number of pupils for both classes = (11 + 14)pupils

= 25 pupils

Total score for both class = 532 + 352

= 884

The mean score(rounded to 2DP) in the maths test across both classes is calculated as:

Total score of both classes÷ Total number of pupils

884 ÷ 25

35.36

Answer:1 =5

             2 = 55/3

             3= 11

Step-by-step explanation:

hope i could help lol

Answer:

positive + positive is negative

negative+ positive = negative ii think

Step-by-step explanation:

Answer:

29

Step-by-step explanation:

This is a right triangle because it has the small square in the corner.

And when you have a right triangle the angle with the square in it is ALWAYS going to be 90 degrees.

It gave you one of the angle measurements which is 61.

90+61=151

And When you add all the angle measurements of a triangle it will ALWAYS be a total of 180 no matter what kind of triangle it is.

To find "x" you subtract the sum of the two angles you you know from 180.

180-151=29

Answer:

let

a=9cm

b=8cm

c=10cm

Step-by-step explanation:

now

s=(a+b+c)/2=(9+8+10)/2=13.5

area of traingle=√(s(s-a)(s-b)(s-c))=√(13.5(13.5-9)(13.5-8)(13.5-10))=34.197cm²

Answer:

15. 1.125 hours = 1 hour 7 minutes 30 seconds

17. 3840 cal

18. 60 g

Step-by-step explanation:

15.

8 miles is to 3 hours as 3 miles is to x hours

8/3 = 3/x

8x = 3 * 3

8x = 9

x = 1.125

Answer: 1.125 hours = 1 hour 7 minutes 30 seconds

17.

1/2 avocado is to 160 cal as 12 avocados are to x cal

(1/2)/160 = 12/x

(1/2)x = 12 * 160

x = 24 * 160

x = 3840

Answer: 3840 cal

18.

We need the same units. We convert 2 1/2 cups into tablespoons.

1 cup = 16 tablespoons

2 1/2 cups = 2 1/2 * 16 tablespoons = 2.5 * 16 tablespoons = 40 tablespoons

Now we start the proportion.

1.5 g to 1 Tbsp is as x is to 40 Tbsp

1.5/1 = x/40

x/40 = 1.5

x = 1.5 * 40

x = 60

Answer: 60 g

Answer:

The y-intercept of the graph is the function value y = 0

The greatest value of y is y = 2

Answer:

2(x+5308)

Step-by-step explanation:

Factor 2x+10616

2x+10616

=2(x+5308)

Answer:

A. No

Step-by-step explanation:

We know that the sum of the angles of a triangle is always equal to 180°. The sum of the angles of a triangle is not equal to 180° in this equation. Hence, we cannot form a triangle.

Answer:

37.5 feet per second

Step-by-step explanation:

Answer:

37.5 ft per second

Step-by-step explanation:

Answer:

cosC = 30/50

Step-by-step explanation:

Before you find cosC, you should know that:

tangent = opposite side/adjacent side

sine = opposite side/hypotenuse

cosine = adjacent side/hypotenuse

You should also know that trigonometric ratios work for only right triangles.

If cosine = adjacent side/hypotenuse, then:

cosC = 30/50

cosC = 0.6

If rounding to the nearest four decimals, it should be 0.6000.

Answer:

3000 meters

Step-by-step explanation:

1 kilometer  = 1000 meters so 3 = 300 meters

Answer:

i dont know for sure but I think it would be 0.07

Answer:

2

Step-by-step explanation:

4*2=8 and 8+4=12

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

Simplifying

(3x + -2)(4x + -1) = 0

Reorder the terms:

(-2 + 3x)(4x + -1) = 0

Reorder the terms:

(-2 + 3x)(-1 + 4x) = 0

Multiply (-2 + 3x) * (-1 + 4x)

(-2(-1 + 4x) + 3x * (-1 + 4x)) = 0

((-1 * -2 + 4x * -2) + 3x * (-1 + 4x)) = 0

((2 + -8x) + 3x * (-1 + 4x)) = 0

(2 + -8x + (-1 * 3x + 4x * 3x)) = 0

(2 + -8x + (-3x + 12x2)) = 0

Combine like terms: -8x + -3x = -11x

(2 + -11x + 12x2) = 0

Solving

2 + -11x + 12x2 = 0

Solving for variable 'x'.

Factor a trinomial.

(1 + -4x)(2 + -3x) = 0

Subproblem 1

Set the factor '(1 + -4x)' equal to zero and attempt to solve:

Simplifying

1 + -4x = 0

Solving

1 + -4x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-1' to each side of the equation.

1 + -1 + -4x = 0 + -1

Combine like terms: 1 + -1 = 0

0 + -4x = 0 + -1

-4x = 0 + -1

Combine like terms: 0 + -1 = -1

-4x = -1

Divide each side by '-4'.

x = 0.25

Simplifying

x = 0.25

Subproblem 2

Set the factor '(2 + -3x)' equal to zero and attempt to solve:

Simplifying

2 + -3x = 0

Solving

2 + -3x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-2' to each side of the equation.

2 + -2 + -3x = 0 + -2

Combine like terms: 2 + -2 = 0

0 + -3x = 0 + -2

-3x = 0 + -2

Combine like terms: 0 + -2 = -2

-3x = -2

Divide each side by '-3'.

x = 0.6666666667

Simplifying

x = 0.6666666667

Solution

x = {0.25, 0.6666666667}

2.) 5x^2-3x=2

We move all terms to the left:

5x^2-3x-(2)=0

a = 5; b = -3; c = -2;

Δ = b2-4ac

Δ = -32-4·5·(-2)

Δ = 49

The delta value is higher than zero, so the equation has two solutions

We use following formulas to calculate our solutions:

x1=−b−Δ√2ax2=−b+Δ√2a

Δ−−√=49−−√=7

x1=−b−Δ√2a=−(−3)−72∗5=−410=−2/5

x2=−b+Δ√2a=−(−3)+72∗5=1010=1

Answer:

The answer is B!!

Step-by-step explanation:

What do we know given from the statement above the photo? We are told <Q is congruent to <S, and QR is congruent to SR. So by given that, we have an angle (angle Q or angle S), a side (side QR or SR), and another angle (angle R), so we have ASA. I hope this helps!!

Answer:

b

Step-by-step explanation:

From the comment above the photo, what do we know? We are advised that <Q is <S, and that QR is SR-compatible. We've got a corner (angle Q or angle S), a line (side QR or SR), and a separate angle (angle R), so we have ASA. I hope that's good!!

Answer:

layla is savege score in mobile legends and diego's score in ml is 20