Solve the expression

(-3) (-2) (3) (4)

and choose the appropriate result.

A) 36
B) –72
C 72
D) -36

Answer

(264/4)x66=4356 using a square

Step-by-step explanation:

each side will have 66 feet on fenecing adding up to 264 feet. A square is the most effiecnt shape to enclose and area.

9514 1404 393

Answer:

  a) y = -7/640x^2 +7/4x

  b) y = -7/640(x -80)^2 +70

Step-by-step explanation:

a) Given the equation in standard form:

  y = ax^2 +bx +c

we can use the points (0, 0), (80, 70), and (160, 0) to find the values of a, b, c.

  a·0 +b·0 +c = 0

  a·80^2 +b·80 +c = 70

  a·160^2 +b·160 +c = 0

The first equation tells us that c=0, so we can write a reduced matrix for the last two equations. The augmented matrix is ...

  [tex]\left[\begin{array}{cc|c}6400&80&70\\25600&160&0\end{array}\right][/tex]

A matrix solver finds the solution to be ...

  a = -0.0109375 = 7/640, b = 1.75 = 7/4

The standard-form equation for Money's path is ...

  y = -7/640x^2 +7/4x

__

b) Factoring out -7/64, we have ...

  y = -7/640(x^2 -160x)

adding and subtracting the square of the x-coefficient, we have ...

  y = -7/640(x^2 -160x +6400) +70

  y = -7/640(x -80)^2 +70

Answer:

let the larger and  smaller number be x and y respectively

first condition

x + y = 49

second condition

3x = 2y+97

3x-2y =97

Multiplying first condition by two and adding both equations

2x + 2y = 98

3x -2y = 97

5x =  195

x = 195/5 = 39

putting the value of x in

x + y = 49

y = 49 -39 = 10

again

Step-by-step explanation:

Answer:

It depends on your situation

Step-by-step explanation:

If you have a mixed fraction, for example: 5 23/3000 + 101 777/3000 you would have to make them irrational numbers and add them. Like so: 3000x5 = 15000. 15000+23 = 15023.  15023/3000. Same process but this time you get 303777/3000. You then add the numerators (top numbers) and you'll get the sum over 3000.

For regular fractions you simply add the numerators. If your denominators are not the same, you need to find a common term that both can fit into. If the denominators are not the same, no matter the size of the fraction, you cannot add it.

Answer:

[tex]\dfrac{7}{9}[/tex]

Step-by-step explanation:

[tex]\dfrac{x+1}{y+1}=\dfrac{4}{5}\\\Rightarrow 5x-4y=-1[/tex]

[tex]\dfrac{x-5}{y-5}=\dfrac{1}{2}\\\Rightarrow 2x-y=5[/tex]

Putting it in matrix form

[tex]\begin{bmatrix}a_{1}&b_{1}\\a_{2}&b_{2}\end{bmatrix}{\begin{bmatrix}x\\y\end{bmatrix}=\begin{bmatrix}{c_{1}}\\{c_{2}}\end{bmatrix}\\\Rightarrow\begin{bmatrix}5 & -4\\2 & -1\end{bmatrix}\begin{bmatrix}x\\ y\end{bmatrix}=\begin{bmatrix}-1\\ 5\end{bmatrix}[/tex]

From Cramer's rule we have

[tex]x=\dfrac{\begin{vmatrix}c_1 &b_1 \\ c_2 & b_2\end{vmatrix}}{\begin{vmatrix}a_1 &b_1 \\ a_2& b_2\end{vmatrix}}\\\Rightarrow x=\dfrac{\begin{vmatrix}-1 &-4 \\ 5 & -1\end{vmatrix}}{\begin{vmatrix}5 &-4 \\ 2& -1\end{vmatrix}}\\\Rightarrow x=\dfrac{1+20}{-5+8}\\\Rightarrow x=7[/tex]

[tex]y=\dfrac{\begin{vmatrix}a_1 &c_1 \\ a_2 & c_1\end{vmatrix}}{\begin{vmatrix}a_1 &b_1 \\ a_2& b_2\end{vmatrix}}\\\Rightarrow y=\dfrac{\begin{vmatrix}5 &-1 \\ 2 & 5\end{vmatrix}}{\begin{vmatrix}5 &-4 \\ 2& -1 \end{vmatrix}}\\\Rightarrow y=\dfrac{25+2}{-5+8}\\\Rightarrow y=9[/tex]

Verifying the results

[tex]\dfrac{7+1}{9+1}=\dfrac{8}{10}=\dfrac{4}{5}[/tex]

[tex]\dfrac{7-5}{9-5}=\dfrac{2}{4}=\dfrac{1}{2}[/tex]

Hence, the fraction is [tex]\dfrac{7}{9}[/tex].

Answer:

Answer:

3

Step-by-step explanation:

Answer:

21

Step-by-step explanation:

Answer:

$280.80

Step-by-step explanation:

Given:

C = 30x+ 25y

Where,

C = total cost

x = number of pants

y = number of shirts.

If Veronica buys eight shirts and two pairs of pants

C = 30x + 25y

= 30(2) + 25(8)

= 60 + 200

= 260

C = $260

Sales tax rate = 8%

Amount of sales tax = 8% of $260

= 8/100 × 260

= 0.08 × 260

= $20.80

Total cost of the bill including 8% tax = $260 + $20.80

= $280.80

Step-by-step explanation:

y = -2x² + 9x - 11 (2 complex solutions)

y = 3x² - 6x + 3 (1 distinct real solution)

y = -x² - 4x + 7 (2 real solutions)

Answer:

A. Sandra substitutes c = 925 into the equation c + (c + 750) = 2,600.

C. Sandra finds a true statement after substituting 925 into the equation.

F. When Sandra evaluates the equation with c = 925, she adds 925 to 750. Then, she adds that sum to 925. She finds that the value is 2,600.

Step-by-step explanation:

select the first one, then the 3rd one, then the 6th one <3

Answer:

$0.85

Step-by-step explanation:

Given that,

Price of 10 tacos for $8.50

We need to find the charge for 1 taco.

We can find it using the unitary method.

10 tacos = $8.50

1 taco = [tex]\dfrac{8.5}{10}[/tex] = $0.85

Hence, restaurant A charge $0.85 for 1 taco.

Step-by-step explanation:

idek what u mean so can u explain or a pic

Answer:

A: The line is a dotted line and the shaded part is on the right side of the line

B: Yes it is correct because if u put in the x value and the y value and calculate it the statement is true.

Answer: 3.5 *  2.5 = 8.75

Step-by-step explanation:

The factors are to be less than 10 but are should be two digit numbers. The only way this is possible would be if they had decimals.

Which two numbers below 10 can give a product less than 10 but more than 8?

3 and 3 would give 9 which is the closest to our constraints.

Both numbers cannot be similar however and have to have a decimal but the factors should be around 3 but not up to 4 as this would pass the 10.

3.5 *  2.5 = 8.75 would work.

Answer: Just dropout

Step-by-step explanation: What kinda classes are you taking

Answer: do it by your self and marry Christmas you filthy animal.

Step-by-step explanation:

Answer:

.    。    •  　ﾟ  。  　.

 　.      .    　。   。  

.   。      ඞ 。 .    •      

　ﾟ   -3.5 was the answer.  。　.

 '    1 Impostor remains    　。

 ﾟ  　.  　. ,    .  .

Step-by-step explanation:

6x + 9 = -12

      -9    -9

6x = -21

Divide -21 by 6

x = -3.5

Answer:

i think it might be B or D

Step-by-step explanation:

f = 2 is the correct answer

plz mark my answer as brainlist plzzzz vote me also and hope this helps you ...

answer is 2ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ

Answer:

10 = y

Step-by-step explanation:

5 and 4 was in the first triangle, in the other triangle its 14 and y 14 is 10 times bigger than 4 so y is 10

Answer:

15 and 8

Step-by-step explanation:

Answer:

Step-by-step explanation:

The normal price of the sweatshirt will be $21.50 because if you divide $78.75 by 5 you get $15.75 for each sweatshirt then you add the $5.75 with will make the original price $21.50

Answer:

25.50

Step-by-step explanation:

You take 106.25 divided by 5 and you get the marked down price of one sweatshirt which is 21.25 so then you add 4.25 to that price and get 25.50.

Answer:

Step-by-step explanation:

y = 4 * x

you can replace y and x with any values, but it has to be correct. you can say 15 = 4 * 3, but that isn't correct. but you can say 16 = 4 *4

The value of the equation is y = 4x

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

Substituting the values in the equation , we get

y = 4x   be equation (1)

On simplifying the equation , we get

when x = 1

y = 4 ( 1 )

y = 4

when x = 2

y = 4 ( 2 )

y = 8

when x = 3

y = 4 ( 3 )

y = 12

when x = 4

y = 4 ( 4 )

y = 16

Therefore , the values of y are { 4 , 8 , 12 , 16 }

Hence , the equation is y = 4x

To learn more about equations click :

https://brainly.com/question/19297665

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Answer:  (x+2)^2/x+2

= x+2 * x+2 / x+2

= x+2

Hope it helped u,

pls mark as the brainliest

^_^

Answer:

1.

Bazı vitaminler yağda çözünür; diğerleri suda çözünür. Suda çözünen vitaminler (C, tiamin, riboflavin, piridoksin, biotin, pantotenik asit, folat, B12) bir veya daha fazla polar veya iyonize edilebilir gruba sahip olma eğilimindeyken, yağda çözünen vitaminler (A, D, E ve K) ağırlıklı olarak aromatik ve alifatik karakterlere sahiptir.

2.

Besinler, yaşam ve sağlık için gerekli olan gıdalardaki bileşiklerdir ve bize enerji, onarım ve büyüme için yapı taşları ve kimyasal süreçleri düzenlemek için gerekli maddeler sağlar. Altı ana besin maddesi vardır: Karbonhidratlar (CHO), Lipitler (yağlar), Proteinler, Vitaminler, Mineraller, Su.

3.

Vitaminlerin farklı görevleri vardır - enfeksiyonlara direnmenize, sinirlerinizi sağlıklı tutmanıza ve vücudunuzun gıdalardan veya kanınızdan düzgün pıhtılaşmak için enerji almasına yardımcı olur. Beslenme Yönergelerini takip ederek, bu vitaminlerin çoğunu yiyeceklerden yeterince alacaksınız. Mineraller ayrıca vücudunuzun çalışmasına yardımcı olur.

Step-by-step explanation:

This is the best i could do...

we have a formula for the distance between two poits

AB=[tex]\sqrt{(5-2)^2+(10-2)^2}[/tex]

AB=[tex]\sqrt{3^2+8^2}[/tex]

AB=[tex]\sqrt{9+64}[/tex]

AB=[tex]\sqrt{73}[/tex]

AB=8.54400

AB≈8.54

Answer:

X = root 73

Step-by-step explanation:

Basically you have to use the slope formula and slope intercept aka y = mx+b to find the equation. The equation is: 8/3x minus 10/3 and if you were to set this equation to zero and plug in root 73 you would get 0 meaning this answer is true/right.

Answer:

Yes.

Step-by-step explanation:

6(64) = 6(50+14)

Using the Distributive Property, 6 needs to be multiplied by both 50 and 14.

6(50+14) = 6(50) + 6(14)

Thus, Jane is correct.

Answer:

1) I just simply added the numerators because the denominators of both fractions are equal. As the denominators are same , I simply wrote 6 by taking the L.C.M of both denominators.

4)

[tex] \frac{5x - 3}{6} + \frac{x - 9}{6} [/tex]

[tex] = > \frac{5x - 3 + x - 9}{6} [/tex]

[tex] = > \frac{6x - 12}{6} [/tex]

Taking 6 common from numerator,

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

Cancelling 6 from both numerator & denominator,

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