pls help , need this done by tomorrow.

Answer:

all parallelograms are rectangles

Step-by-step explanation:

the have 2 sets of parallel lines that are equal in length

Answer:

6 and 18

6+6=12

18+6=24

12x2=24

Unless a number is given it is mainly trial and error so guessing numbers that fit the first part of Ax3=B

Step-by-step explanation:

Answer:

(10 + 3i)(10 - 3i)=109

Step-by-step explanation:

[tex](10+3i)(10-3i)=(10^{2} -10*3i)+(3*10i-3*3i^2)\\ =100-30i+30i-9i^2\\=100-9*(-1)\\=100+9=109[/tex]

Answer:

B) 109

Step-by-step explanation:

I took the test and got a 100%

Answer:

investment 2 $400 Simple Interest Rate

Step-by-step explanation:

Answer:

<Q = 44.4

<T = 44.4

The triangles are similar

Step-by-step explanation:

Both triangle QSR and triangle TUV are similar triangles since the corresponding angles are equal.

Two figures are similar if they have the same shape and the ratio of their corresponding sides are in the same proportion. Hence all the corresponding angles are similar.

From the diagram:

∠Q + ∠R + ∠S = 180° (angle in a triangle)

∠Q + 98 + 37.6 = 180

∠Q = 44.4°

∠T + ∠U + ∠V = 180° (angle in a triangle)

∠T + 98 + 37.6 = 180

∠T = 44.4°

Both triangle QSR and triangle TUV are similar triangles since the corresponding angles are equal.

Find out more on Similar figures at: https://brainly.com/question/2644832

Step-by-step explanation:

Step 1:  Solve using the first point

(2, 28)

[tex]28 = a(2)^3 + b(2)^2 + c(2) + d[/tex]

[tex]28 = 8a + 4b + 2c + d[/tex]

Step 2:  Solve using the second point

(-1, -5)

[tex]-5 = a(-1)^3 + b(-1)^2 + c(-1) + d[/tex]

[tex]-5 = -a + b - c + d[/tex]

Step 3:  Solve using the third point

(4, 220)

[tex]220 = a(4)^3 + b(4)^2 + c(4) + d[/tex]

[tex]220 = 64a + 16b + 4c + d[/tex]

Step 4:  Solve using the fourth point

(-2, -20)

[tex]-20 = a(-2)^3 + b(-2)^2 + c(-2) + d[/tex]

[tex]-20 = -8a + 4b - 2c + d[/tex]

Step 5:  Combine the first and fourth equations

[tex]28 - 20 = 8a - 8a + 4b + 4b + 2c - 2c + d + d[/tex]

[tex]8 = 8b + 2d[/tex]

[tex]8 - 8b = 8b - 8b + 2d[/tex]

[tex](8 -8b)/2 = 2d/2[/tex]

[tex]4 - 4b = d[/tex]

Step 6:  Solve for c in the second equation

[tex]-5 + 5 = -a + b - c + d + 5[/tex]

[tex]0 + c = -a + b - c + c + d + 5[/tex]

[tex]c = -a + b + d + 5[/tex]

Step 7:  Substitute d with the stuff we got in step 5

[tex]c = -a + b + (4 - 4b) + 5[/tex]

[tex]c = -a + b + 4 - 4b + 5[/tex]

[tex]c = -a - 3b + 9[/tex]

Step 8:  Substitute d and c into the first equation

[tex]28 = 8a + 4b + 2(-a - 3b + 9) + (4 - 4b)[/tex]

[tex]28 = 8a + 4b - 2a - 6b + 18 + 4 - 4b[/tex]

[tex]28 - 22 = 6a - 6b + 22 - 22[/tex]

[tex]6 / 6 = (6a - 6b) / 6[/tex]

[tex]1 + b = a - b + b[/tex]

[tex]1 + b = a[/tex]

Step 9:  Substitute a, b, and c into the third equation

[tex]220 = 64(1 + b) + 16b + 4(-(1 + b) - 3b + 9) + (4 - 4b)[/tex]

[tex]220 = 64 + 64b + 16b + 4(-1 - b - 3b + 9) + 4 - 4b[/tex]

[tex]220 - 100 = 60b + 100 - 100[/tex]

[tex]120 / 60 = 60b / 60[/tex]

[tex]2 = b[/tex]

Step 10:  Find a using b = 2

[tex]a = b + 1[/tex]

[tex]a = (2) + 1[/tex]

[tex]a = 3[/tex]

Step 11:  Find c using a = 3 and b = 2

[tex]c = -a - 3b + 9[/tex]

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

[tex]c = -3 - 6 + 9[/tex]

[tex]c = 0[/tex]

Step 12:  Find d using b = 2

[tex]d = 4 - 4b[/tex]

[tex]d = 4 - 4(2)[/tex]

[tex]d = 4 - 8[/tex]

[tex]d = -4[/tex]

Answer:  [tex]a = 3, b = 2, c = 0,d = -4[/tex]

Answer:

a = 3

b = 2

c = 0

d = -4

Step-by-step explanation:

Form 4 equations and solve simultaneously

28 = a(2)³ + b(2)² + c(2) + d

28 = 8a + 4b + 2c + d (1)

-5 = -a + b - c + d (2)

220 = 64a + 16b + 4c + d (3)

-20 = -8a + 4b - 2c + d (4)

(1) + (4)

28 = 8a + 4b + 2c + d

-20 = -8a + 4b - 2c + d

8 = 8b + 2d

d = 4 - 4b

Equation (2)

c = -a + b + d + 5

c = -a + b + 4 - 4b+ 5

c = -a - 3b + 9

28 = 8a + 4b + 2c + d (1)

28 = 8a + 4b + 2(-a - 3b + 9) + 4 - 4b

28 = 6a - 6b + 22

6a - 6b = 6

a - b = 1

a = b + 1

220 = 64a + 16b + 4c + d (3)

220 = 64(b + 1) + 16b + 4(-b - 1 - 3b + 9) + 4 - 4b

220 = 60b + 100

60b = 120

b = 2

a = 2 + 1

a = 3

c = -3 - 3(2) + 9

c = 0

d = 4 - 4(2)

d = -4

Answer:

c

Step-by-step explanation:

C) (12 + a) − (7a + 12) = 90

Answer: The surface area is 219.8 ft

Step-by-step explanation: the radius= 7 and the height=4

2(3.14 x 7) + (2 x 3.14 x 7) 4

      43.96 + 175.84

             219.8

Answer: Cos13= 9/x  x is about 9.2

Step-by-step explanation:   cos13 =about .97 9/9.2=.97

Answer:

9(6)

Step-by-step explanation:

i just took the test and yea!!!!!!!!

Answer:

D. 7(6)+4

Step-by-step explanation:

I tried the answer above me but it was wrong that's why I got 90/100

but here is the REAL ANSWER

Answer:

75.36

Step-by-step explanation:

3.14(pi) x 24(diameter) = 75.36(circumference)

Answer:

$3690

Step-by-step explanation:

Let's first find what percent of the original price it is being sold for.

100%-18%=82%

The water cooler is being sold for 82% of its original price.

Let's now find 82% of 4500.

0.82*4500=3690

The selling price is $3690

Answer:

3690

Step-by-step explanation:

the original price is 4500

for decreasing or discount we use this formula x discount upo 100 multiply by the original price. so for this question if we apply the formula it will be

18upon 100 x4500. the answer comes as 810. noww we subtract the original price from the discounted price. so 4500-810=3690. comes as ur selling price

Answer:

x=27

Step-by-step explanation:

√10x=3√x+3  square both sides

10x=9(x+3)      multiply parenthesis by 9

10x=9x+27       move the variable to the left

10x-9x=27        collect like terms

x=27

Answer:

X= 8

Step-by-step explanation:

Answer:

Step-by-step explanation:

6 1/3 plus 8 5/6 is 15 1/6

20 17/30 minus 15 1/6= 5.4 or 5 2/5

Median income is the income in the middle of the data set when incomes are arranged from least to greatest.

Median is a measure of central tendency that is used to describe the number that is in the middle of a set of numbers that are arranged either in ascending or descending order

For example, the income of 3 workers for march are : $1000, $5000, $10,000. The median income is $5000.

To learn more about median, please check: https://brainly.com/question/14746682

#SPJ2

Answer:

A

Step-by-step explanation:

Answer:

A. 9

C. 16  

E. 169

F. 625

Step-by-step explanation:

Step-by-step explanation:

It is a unique solution

5x-3y=6)*3

3x-2y=1)*5

15x-9y=18

15x-10y=5

-

________

y=13

x=9

Option D

Answer:

Step-by-step explanation:

50% is [tex]\frac{50}{100}[/tex] but we're working with 64 units, not 100. So, we must find a number that represents 50 but in 64 units.

[tex]\frac{50}{100}=\frac{x}{64}[/tex]

If you solve for x, you get:

[tex]x=\frac{50*64}{100}\\ x=32[/tex]

[tex]\frac{50}{100}=\frac{32}{64}[/tex]

Answer:

12

Step-by-step explanation:

Answer:

width is 3 and length is 9

Step-by-step explanation:

width is 3 bcs 3*3=9-6=3 satisfied?

Answer:

is there a mulitply choice or no because i think i have the answer

Step-by-step explanation:

Answer:

900

Step-by-step explanation:

3*5*10*6=900

Answer:

c

Step-by-step explanation:

Answer:

c)

Step-by-step explanation:

Answer:

y = 40.

Step-by-step explanation:

The opposite sides of a cyclic quadrilateral sum to 180, so:

3y + 2y - 20 = 180

5y = 180 + 20 = 200

y = 40.

Answer:

No solution

Step-by-step explanation:

18x - 5 < 3(6x - 2)       Distribute the 3 to (6x - 2)

18x - 5 < 18x - 6

-18x        -18x               Subtract 18x from both sides

-5 < -6                         There is no solution because -5 is not less than -6.

If this answer is correct, please make me Brainliest!

Answer:

16 times larger

Step-by-step explanation:

Simple math here just do 1520/95=16 because your trying to find out how they scale to eachother, therefore finding out the difference in size by dividing.

Hope this helps:)

Answer:

see below

Step-by-step explanation:

-2 1/4 * 7.89 + 13/3 ÷ (-4.17)

Estimate

Multiply and divide  from left to right

-9/4 * 8 + 4 ÷ -4

-18 -1

-19

The exact answer is -18.79166.....

the answer is C. 81.87

Answer:

218.378 is the answer.

Answer:

D

Step-by-step explanation:

Because it is repeating decimal.

Hope this helps.

Answer:

B i think

Step-by-step explanation:

mark brainliest

Answer:

d. (6,-4)

Step-by-step explanation:

After 180° rotation:

(x , y) --> (-x,-y)

(-6,4) --> (6,-4)