Which is true regarding Adi’s use of algebra tiles? She used the algebra tiles correctly. She did not represent the two original factors correctly on the headers. The signs on some of the products are incorrect. Some of the products do not show the correct powers of x.

Answer:

a = 1.972

Step-by-step explanation:

a + 3 1/4 = 5 2/9

find a common denominator

a + 3 9/36 = 5 8/36

a = 5 8/36 - 3 9/36

a = 188/36 - 117/36

a = 71/36

a = 1.982

Answer:

X= -5

y= -9

Step-by-step explanation:

7x -4y = 1

4(5x -y = -16)

(7x - 4y = 1) - (20x -4y = -64)

X= -5

y= -9

Answer:

a

Step-by-step explanation:

m=0

it is the equations that did not have solution

Answer:

Step-by-step explanation:

m ∠ 1 = 42 °

m ∠ 2 = m ∠ 4 = m ∠ 9 = m ∠ 12 = ( 180° - 62° - 42° ) = 76 °

m ∠ 3 = m ∠ 6 = m ∠ 7 = 62 °

m ∠ 5 = m ∠ 8 = ( 180° - 62° ) = 118 °

m ∠ 10 = m ∠ 11 = ( 180° - 76° ) = 104 °

The equation 60.1 = 7.2x + 2.5 can be used to find the number of oranges in the bag is 8.

It is a system of an equation in which the highest power of the variable is always 1. A one-dimension figure that has no width. It is a combination of infinite points side by side.

Given

A grocer sells oranges in bags. Each empty bag weighs 2.5 ounces and each orange weighs 7.2 ounces.

Khalil buys a bag of oranges that weighs 60.1 ounces.

Let x be the number of oranges.

Then the equation will be

y = 7.2x + 2.5

For y = 60.1, the value of x is

[tex]\rm 60.1 = 7.2x + 2.5\\[/tex]

On simplifying, we have

x = 8

Thus, the number of oranges in the bag is 8.

More about the linear system link is given below.

https://brainly.com/question/20379472

Answer:

  not similar; corresponding sides are not proportional

Step-by-step explanation:

If the triangles were similar, corresponding sides would be proportional. That is, you would have ...

  AX/AB = AY/AC

Here, those ratios are ...

  6/24 ≠ 10/35

so, the corresponding sides are not proportional, and the triangles are not similar.

[tex]\textit{logarithm of factors} \\\\ \log_a(xy)\implies \log_a(x)+\log_a(y) \\\\[-0.35em] ~\dotfill\\\\ \log_8(9x)\implies \log_8(9)+\log_8(x)[/tex]

Area of trapezium= 1/2 × (a+b) × h

= 1/2 × (12 + 8) × 8

= 1/2 × 20 × 8

= 10 × 8

= 80 cm^3

Hope it helps you

Answer:

1)y=3x+2

2)y=-2/2x+4

Step-by-step explanation:

you get the slope from the points and the b from the y intercept.

Answer:

It would be $35

Step-by-step explanation:

hope this helps

15 percent of 45 is 6.75

45- 6.75 is 38.25

The price after a 15% discount is $38.25

Answer:

A:2

B:-5

C:8

D:-147

Step-by-step explanation:

A: For this one, you can cancel out the negatives. Then just divide 14 by 7. Your final answer is 2. Final Answer : 2

B: This one you can forget about the negative for the first bit. Just divide 15 by 3 to get 5. Now the negative is only on one side of the equation so therefore we add the negative back into our answer. Final Answer : -5

C: Just divide 32 by 4 to get 8. No removal or substitution is needed for this one because both numbers are positive. Final Answer : 8

D: Multiply both numbers normally forgetting about the negative at first. 49 * 3 is 147. Now one of our numbers contain a negative so we plug back the negative into our answer. Final Answer : -147

Answer:

120 history textbooks

360 physics textbooks

Step-by-step explanation:

Physics textbooks = 3 times the amount of history textbooks

History textbooks = x

Physics textbooks = 3x

480 = x + 3x

= 4x

480/4 = x

x = 120

120 history books sold

480-120 = 360

360 physics textbooks sold

btw sorry if I didn't give enough working or help you understand it I'm not great at this kind of thing

Solution:

Note that:

Putting this in fraction form:

The fraction of a kiloliter of 250ml is 1/4,000.

Answer:

D

Step-by-step explanation:

If we reduce [tex]\frac{15}{12}[/tex] This comes to [tex]\frac{5}{4}[/tex].  Thus D is the answer

Answer:

We need to see the graph can u show me the graph

Step-by-step explanation:

?

Answer:

I'm am pretty sure that it is c it can't be a or b

Answer:

4.359/10

Step-by-step explanation:

The management function being performed by Nancy according to the description is; Scheduling/Planning

Management functions simply is a collection of the five broad activities that managers perform in a bid to achieve organizational goals which includes:

Read more on management functions;

https://brainly.com/question/17083312

a =12

Answer:

Since

a

b

=

c

d

,

we can use an algebraic technique, to get the value of

a

, by isolation and using the golden rule of algebra, "Balancing the equation"

a

40

=

3

10

to isolate

a

, we must eliminate

40

in the left side of the equation by multiplying it by

40

, the golden rule of algebra states that whatever you do in a side of an equation is you also must do it in the other side to keep the equation balanced.

(

40

)

a

40

=

3

10

(

40

)

40

a

40

=

(

40

)

(

3

)

10

a

=

120

10

, we can still simplify the answer giving,

Answer:

1/6

Step-by-step explanation:

If you roll a 1 then on the second roll (for a fair 6 sided die) the probability that the second roll is a 1 is 1/6 (assuming independence.

Answer:

1/6

Step-by-step explanation:

If the die is fair (and we will assume that all of them are), then each of these outcomes is equally likely. Since there are six possible outcomes ( A standard die has 6 Number { 1,2,3,4,5,6 } ) , the probability of obtaining any side of the die is 1/6. The probability of rolling a 1 is 1/6, the probability of rolling a 2 is 1/6, and so on.

[RevyBreeze]

Answer: 3-

Step-by-step explanation:

Answer:

b=-3/4 or b=-0.75

Step-by-step explanation:

[tex]2(-2b+3)=9[/tex]

[tex]2b+3=\cfrac{9}{2}[/tex]

[tex]-2b=\cfrac{9}{3} -3[/tex]

[tex]-2b=\cfrac{3}{2}[/tex]

[tex]b=-\cfrac{\frac{3}{2} }{2}[/tex]

[tex]b=-\cfrac{3}{2\times 2}[/tex]

[tex]b=-\cfrac{3}{4}[/tex]

Hope it helps! :)

Answer:

The unknown number is -2

Step-by-step explanation:

Let n represent the unknown number then...

12=14+n

Subtract 14 from both sides:

12-14=14-14+n

-2=n

n=-2

Answer: P: 6x - 6 + (pi * x/2) A: 3x^2 - 3x - (pi * (x^2)/4)

Step-by-step explanation:

The missing section is a quarter of a circle. It is the same length at 90 degrees difference following an arc. This radius is X, same as the smaller length of the rectangle. The longer length of the rectangle is 2x-3+x, or 3x-3.

Area: Rectangle area is X * (3x-3) or 3x^2 - 3x. Subtract the missing piece. The full area of the circle would be pi * x^2. Divide by 4 for a quarter circle. So the full area would be 3x^2 - 3x - (pi * (x^2)/4).

Perimeter. x + 2x-3 + 3x-3 + the arc. The arc is a quarter of the circle's circumference. pi * 2x over 4. So total perimeter would be 6x-6 + (pi * 2x/4 or pi * x/2).  

Just my best guess tho

Answer:

Monday: 25

Tuesday: 121

Wednesday: 15

Step-by-step explanation:

Monday: square numbers

[tex] {1}^{2} = 1 [/tex]

[tex]2 {}^{2} = 4[/tex]

[tex] {3}^{2} = 9[/tex]

[tex] {4}^{2} = 16[/tex]

[tex] {5 }^{2} = 25[/tex]

[tex] {6}^{2} = 36[/tex]

Tuesday: add a power of 3

[tex] {3}^{1 } = 3[/tex]

[tex] {3}^{2} = 9[/tex]

[tex] {3}^{3} = 27 [/tex]

[tex] {3}^{4} = 81[/tex]

1+3=4, 4+9=13, 13+27=40, 40+81=121

Wednesday: one less than a power of 2

[tex] {2}^{1} - 1 = 2 - 1 = 1[/tex]

[tex] {2}^{2} - 1 = 4 - 1 = 3[/tex]

[tex] {2}^{3} - 1 = 8 - 1 = 7[/tex]

[tex] {2}^{4} - 1 = 16 - 1 = 15[/tex]

[tex] {2}^{5} - 1 = 32 - 1 = 31[/tex]

[tex] {2}^{6} - 1 = 64 - 1 = 63[/tex]