help fast!
what is the solution to the system of equations?
a. no solution
b. infinitely many solutions
c. (4,-3)
d. (1.5,-1.75)​

Answer:

Geometrical sequence of x2, each number is being multiplied by 2.

Step-by-step explanation:

10/5 = 2

20/10 = 2

40/20 = 2

Answer:

Let x = the number of teaspoons of vanilla needed

sugar/vanilla: 2/3 = 1

                          4      x           Cross multiply

(2/3)x = 4

x = 4(3/2)

x = 6 teaspoons

Step-by-step explanation:

Answer:

x = 6 teaspoons

Step-by-step explanation:

good luck!

Answer:

-13

Step-by-step explanation:

Answer:

Step-by-step explanation:

3p+6-7p=18

Combine like terms

-4p+6=18

Subtract 6 from both sides

-4p=12

Divide by -4

P= -3

Answer:

It will be positive.

Step-by-step explanation:

When you multiply the two negative numbers or two positive numbers the answer will always be positive. one positive and one negative, the answer will be negative.

the answer is 4 y=-2/3+4

this is it

Answer:

the decimal is 0.375

And the percentage of it would be 37.5(just adding that because why not)

Answer:

A    -----    AB ≅ CB

Answer: Two triangles are congruent if their corresponding sides are equal in length, and their corresponding angles are equal in measure.

Answer:

true

Step-by-step explanation:

Answer:

the pressure decreases. Once it reaches 0 the pressure is 0.

Step-by-step explanation:

you can check this by plugging in values like -0.999 and 0.1 to see

Answer:

pentagon and x = 85

Step-by-step explanation:

The polygon has 5 sides and is a Pentagon.

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

Here n = 5, thus

sum = 180° × 3 = 540°

Sum the 5 interior angles and equate to 540, that is

x + x + 35 + x + 25 + 120 + 105 = 540, simplifying

3x + 285 = 540 ( subtract 285 from both sides )

3x = 255 ( divide both sides by 3 )

x = 85

Answer:

I do believe it is B

Step-by-step explanation:

Answer:

8 pounds

Step-by-step explanation:

20/5=4

2*4=8

hope this helps :3

if it did pls mark brainliest

Answer:

Mindy would need 8 pounds of blueberries to make 20 blueberry pies.

Step-by-step explanation:

Since 5 blueberry pies requires 2 pounds, you can multiply both numbers by 4 to get 20 blueberry pies requiring 8 pounds.  

Answer:

4/3

Step-by-step explanation:

rise over run so you count up till you get in line with the other point then count right 3 to get to the point

Answer:

$15

Step-by-step explanation:

you divide 61 and 4 which gives you 15.25 and since you can't go up which makes it over priced you will make it the same so it $15

Answer:

x + 2 < 5 and x - 7 > -6

x < 5 - 2 and x > -6 + 7

x < 3 and x > 1

Step-by-step explanation:

Therefore, solutin is {x | 1 < x < 3}

Answer:

Describe the graphs of the following systems; 1 solution, no solutions, and infinitely many solutions?

A graph will have one solution at the equations intersecting. A graph will have no solution when the lines are parallel. A graph will have infinite solution if the equation are the same on the graph for every point.

Draw/use software to show the graphs of those three different types of solutions.

It won't let me put pictures put you can get it off the internet.

What have you learned about the slopes and y-intercepts of those three graphs?

Y-intercept is where you have to plot the first dot and the slope is what makes the graph go up and to the side or down and to the side.  

Step-by-step explanation:

What the other guy said is completely correct!

Answer:

B. e - 75 < 26

Step-by-step explanation:

After addressing 75 envelopes, a political volunteer has fewer than 26 envelopes left to address. Which inequality can be used to find the total number of envelopes (e)?

A. 75 - e < 26

B. e - 75 < 26

C. 75 - e > 26

D. e - 75 > 26

Total number of envelopes = e

The political volunteer has addressed 75 envelopes

The political volunteer has fewer than 26 envelopes left to address.

This means he has less than 26 envelopes to address after addressing 75 envelopes out of a total of e envelopes

The inequality that can be used is

e - 75 < 26

The correct answer is

B. e - 75 < 26

Answer:

No

Step-by-step explanation:

(100-5) divided by 7 is about 12 and 100 - (5 divided by 7) is 99 and 2/7

Answer:

9/10

Step-by-step explanation:

Answer:

0.4 or 2/5

Step-by-step explanation:

Answer:

1) 8%

2)230%

3)34%

4)105%

5)70%

6)4.9%

Answer:

8%, 230%, 34%, 105%, 70%, 4.9%

Step-by-step explanation:

basically hundredths place is the ones place of a percentage. that is how you figure everything out.

Can I be Brainliest? TYSM

Answer:

7.3 ft

Step-by-step explanation:

The information given represents a right angle triangle with the following:

reference angle = 52°

Adjacent side length = 5.7 ft.

Opposite side length = height of the statue = h

Applying the trigonometric ratio formula, we would have:

[tex] tan(52) = \frac{h}{5.7} [/tex]

Multiply both sides by 5.7

[tex] tan(52) \times 5.7 = \frac{h}{5.7} \times 5.7 [/tex]

[tex] tan(52) \times 5.7 = h [/tex]

[tex] h = 7.3 ft [/tex] (nearest tenth)

Answer:

1 ⅓ pound?

Step-by-step explanation:

That's what I got sorry if wrong

Answer:

57

Step-by-step explanation:

6+x+x/2=44

3x/2=44-6

I need points

Step-by-step explanation:

thankyou

Answer:

The viscosity at 140°C is predicted to be 7.2

Step-by-step explanation:

The function that model the relationship between viscosity and temperature = Quadratic model

The general form of a quadratic equation is y = a·x² + b·x + c

Therefore, we have;

When y = 10.8, x = 110, which gives;

10.8 = a·110² + b·110 + c = 12100·a + 110·b + c

10.8 = 12100·a + 110·b + c

When y =8.2, x = 130

8.2 = a· 130² + b· 130 + c = 16900·a + 130·b + c

8.2 = 16900·a + 130·b + c

When y = 160, x = 5.8

5.8 = a·160² + b·160 + c = 25600·a + 160·b + c

5.8 = 25600·a + 160·b + c

The three equations above can be listed as follows;

10.8 = 12100·a + 110·b + c

8.2 = 16900·a + 130·b + c

5.8 = 25600·a + 160·b + c

Solving using matrices gives;

[tex]\begin{bmatrix}12100 & 110 & 1\\ 16900 & 130 & 1\\ 25600 & 160 & 1\end{bmatrix} \begin{bmatrix}a\\ b\\ c\end{bmatrix} = \begin{bmatrix}10.8\\ 8.2\\ 5.8\end{bmatrix}[/tex]

[tex]\begin{bmatrix}a\\ b\\ c\end{bmatrix} = -\dfrac{1}{3000}\begin{bmatrix}3 & -5 & 2\\ -867 & 1350 & -480\\ 62400 & -88000 & 28600\end{vmatrix} \begin{bmatrix}10.8\\ 8.2\\ 5.8\end{bmatrix}[/tex]

From which we have;

a = 0.001, b = -0.37, c = 39.4

Substituting gives;

y = 0.001·x² - 0.37·x + 39.4

When x = 140

y = 0.962·140² - 0.37·140 + 39.4= 7.2

The viscosity at 140°C = 7.2.

Answer:

f(x) ≈ 0.001x2 − 0.37x + 39.4

The viscosity of the oil at 140°C is about 7.2 kg/ms.

Step-by-step explanation:

Substitute the values of a, b, and c into f(x) = ax2 + bx + c to write the quadratic model.

f(x) ≈ 0.001x2 − 0.37x + 39.4

Evaluate the quadratic model for x = 140 and simplify to predict the viscosity of the oil at a temperature of 140°C.

f(140) ≈ 0.001(140)2 − 0.37(140) + 39.4 ≈ 7.2

Therefore, the viscosity of the oil at a temperature of 140°C is about 7.2 kg/ms.

Step-by-step explanation:

It will be 25. Because if you take 7 x 7 = 49 and then 24 x 24 = 576. Then add uo 49+579=625. Then since its elevated to 2 (sorry for my bad english) you have to take square root of 625 = 25. Hope this helped brother/sister

Answer: it’s 81

Step-by-step explanation:

easy math I know it’s 81

The area of the square is 81 in².

Area is defined as the total space taken up by a flat (2-D) surface or shape of an object.

Given that, The side of a square is 3² in.

3*3 = 9

Therefore, the side of the square is 9 in.

The area of a square is (side)²

= 9² = 81

Hence, The area of the square is 81 in².

For more reference on area, click;

https://brainly.com/question/27683633

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