I don’t know the answer

Answer:

9^-5/9^-7=81

Step-by-step explanation:

Answer: D

Step-by-step explanation: hope it helps

the correct answer is 9.

Answer:

9

Step-by-step explanation:

Answer:

You can tell yourself that if you don't study you'll eventually going to fail and get in trouble. So, what would you rather have happen?. Study for a few more minutes and get a good grade, or Quit studying and fail the test and have your parents be notified by an angry math teacher.

Step-by-step explanation:

Answer:

1. Anything to do with the same slope but different a B (Ex.  y=1/3x+1 and y=1/3x-8)

2. No solutions

Step-by-step explanation:

1. Because the two lines are parallel, when no intersection between two lines happens, there will need to be a change in the B but the same slope. Remember the formula for an equation is y=mx+b. The m stands for the slope. With parallel lines, slopes are the same. If lines were to never intersect, you would have to change the b to a different number so that both lines could keep going at the same time, but never intersect.

2. Remember, solutions only happen when the two lines intersect. Infinite solutions happen when the lines are the same. One solution happens when two lines only have one point where they intersect. No solutions happen when the two lines don't intersect at all. Based off the graph given, there are no intersections so, there will be no solutions.

Large Polygon 14 x21= 294

Little Polygon 2x(2x2) =8

294-8=286

Answer: 16/225

Step-by-step explanation:

i did the math

Answer: You can calculate the likeliness of the spinner landing on blue or red as the more spins you have the more accurate the results would be. In this case, after 200 spins Tiffany calculated that the spinner landing on blue has a 60% chance while landing on red has a 40% chance. Therefore this might not be fair as there is a 60% chance of landing on blue.

Step-by-step explanation: sorry if this didn't help :(

Answer:

Symmetry maybe?

Step-by-step explanation:

Maybe your teacher means find two lines of symmetry.

Answer:

c

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

Answer:

-17

Step-by-step explanation:

I will represent the question mark with the variable \(x\).

\(x - 11 + 12 = -16\)

To solve for \(x\), we need to isolate it.

To do this, subtract 12 from both sides.

\(x - 11 + 12= -16\\\underline{\textrm{ } \ \ \ \ \ \ \ \, -12} \ \, \, \, \, \ \underline{-12}\\x - 11 \ \ \ \ \ \: \ = -28\)

Then, add 11 to both sides.

\(x - 11 = -28\\\underline{\ \ \: + \, 11} \ \ \ \, \underline{+ \, 11}\\x \ \ \ \ \ \ \: = -17\)

\(x = -17\)

So, the integer that makes the equation true is -17.

Answer:  answer in screenshots down below

Step-by-step explanation:

27 Cm² (C)

...............

==========================================================

Explanation:

It's not directly stated, but I'm assuming that there's symmetry going on in terms of the triangle on the left being a mirror copy of the triangle on the right. If that assumption is true, then we have another "3 cm" along the bottom edge. In total, the bottom edge is 3+6+3 = 12 cm long.

The top edge, parallel to the bottom one, is 6 cm. We'll denote the two parallel sides to be the base lengths and we could write \(b_1 = 6 \text{ and } b_2 = 12\). The small subscript just helps us differentiate between the two base lengths.

The height is the vertical dashed line of 3 cm. This means h = 3. The height is always perpendicular to the base.

We'll plug those three variables into the area of a trapezoid formula below

\(A = \frac{h*(b_1+b_2)}{2}\\\\A = \frac{3*(6+12)}{2}\\\\A = \frac{3*(18)}{2}\\\\A = \frac{54}{2}\\\\A = 27\\\\\)

The area is 27 square cm

-----------------------------------

Another way to get the answer is to break the trapezoid into three pieces: two triangles and a rectangle in between.

One triangle has an area of base*height/2 = 3*3/2 = 9/2 = 4.5 square cm, which means two triangles combine to an area of 2*4.5 = 9 square cm.

The rectangle has area of length*width = 6*3 = 18 cm^2

The trapezoid's area is the combination of what we found: 9+18 = 27 cm^2

Answer:

42 dollars

Step-by-step explanation:

$59.95-30% is 41.965. We round this to 42 dollars.

If it sells for 59.95, and it's on sale for 30% off, you can use this equation to find the new, discounted price:

59.95 x 0.70 (the 0.70 resembling 100-30%)

The answer of this equation is 41.965, rounded to 41.97.

Percent of change: about 30% (29.9917% decrease)

Answer:

25 1/2- 8 1/2=17

17 divided by 2= 8.5

8.5 inches

Step-by-step explanation:

Answer:

the answer is 6 because when x=7 on the line it is also equal to 6 on the y axis

Answer:

<

Step-by-step explanation:

-6+-4=-10

-6--4=-2

-2 is greater than -10

Answer:

-6+(-4)<-6-(-4)

Step-by-step explanation:

-6+(-4)<-6-(-4)

=>-6-4__-6+4

=>-10__-2

=>-10<-2

Answer:

40 minutes

Step-by-step explanation:

The least common multiple of 8 minutes and 10 minutes is ...

 LCM(8, 10) = 8·10/GCD(8, 10) = 80/2 = 40

The red and blue trains will arrive together again in 40 minutes

Answer:

1/3

Step-by-step explanation:

he drank 2/6 which can be simplified to 1/3

Answer:

2/6 or 1/3

Step-by-step explanation:

1/6 +1/6 =1+1/6

2/6 divided by 2

2/2=1

6/2=3

1/3 is the same as 2/6

I really hope I helped

Can I please have brainliest please?

Answer:

15

Step-by-step explanation:

Answer:

15

Step-by-step explanation:

Answer: Use point-slope form.

y - y1 = m(x - x1)

Step-by-step explanation:

C. Find the sum of the two horizontal in the summer for two vertical vectors.

Answer:

Can confirm C is right i got 100 on the unit test

Step-by-step explanation:

Answer:144

Step-by-step explanation:

When area is dilated you have to multiply the dialation factor by itself, in this case (12 x 12)

Answer:

37.5

Step-by-step explanation:

cosФ = \(\frac{A}{H}\)

cos(33°35') = \(\frac{m}{45}\)

m = 45 × cos(33°35')

m = 37.5 (1d.p.)

Answer: 1. a. 15     b. 11     c. 2     d. 7     e. 5.5

2.  Stem:                   Leaf:

        1                           9

        2                         5, 9

        3                        3, 3, 8

        4                        0, 7, 9

        5                          4, 5

        6                           1, 5

        7                           2, 7

        8                             1

3. a. 13 inches        b. I'm pretty sure that it is the second quarter because there is more snow.           c. The first quarter because it's section is more spread out among the numbers.

Step-by-step explanation:

Answer:

It is 2214 base 5

Step-by-step explanation:

Answer:

-16, 10, 16, 25, 43

Step-by-step explanation

when you have something in absolute value bars it's always going to be positive so you would make -16 regular 16; and 10 stays 10; 25 stays 25; -16 stays - 16; and then -43 turns into regular 43

Answer:

-16, 10, 16, 25, 43

Step-by-step explanation:

If it has the bars around it and its a negative number  it turns into a posotive

This is a system of three equations with two unknowns, x and y. To solve it, we can use the method of elimination. First, we can eliminate y by subtracting the first equation from the second equation:

x^2-2y=3 - (x-2y=3) => x^2-x=0

Then we can factor the resulting equation and find the values of x:

x^2-x=0 => x(x-1)=0 => x=0 or x=1

Next, we can substitute these values of x into any of the original equations and find the corresponding values of y. For example, using the first equation:

x-2y=3 => 0-2y=3 => y=-3/2 when x=0 x-2y=3 => 1-2y=3 => y=-1 when x=1

Finally, we can substitute these values of x and y into the expression x2y-2xy2 and evaluate it:

x2y-2xy2 => 02(-3/2)-2(0)(-3/2)2 => 0 when x=0 and y=-3/2 x2y-2xy2 => 12(-1)-2(1)(-1)2 => -3 when x=1 and y=-1

Therefore, the value of x2y-2xy2 can be either 0 or -3 depending on the values of x and y.