Express -23 in the form bi where b is a real number TIME SENSITIVE

Answer:

See below in bold.

Step-by-step explanation:

1.  21 + 2x + 29 = 180         (as supplementary angles sum to 180 degrees).

2x + 50 = 180

2x = 130

x = 65 degrees.

2. x - 36 + 73 = 180

x = 180 + 36 - 73

x = 143 degrees.

Complete Question

Casey buys a bracelet. She pays for the bracelet and pays $0.72 in sales tax. The sales tax rate is 6%. What is the original price of the bracelet, before tax?

Answer:

$12

Step-by-step explanation:

Let the original price of the bracelet before tax =x

Tax rate =6%

That means:

6% of x =$0.72

0.06x=0.72

Divide both sides by 0.06

x=$12

The original price of the bracelet, before tax is $12.

Answer:

0° and 90°

Step-by-step explanation:

Bearing is simply the angle, clockwise, between the north direction and any other direction;

In the first image (on the left) B is exactly in the north direction as compared to A so the bearing is 0°;

In the other image, B is to the right of A, which is a clockwise rotation of 90° from the north direction.

Vertical angles are the same, so each one would be identical.

If a = 53 degrees, then angle c would also be 53 degrees.

The answer is C. 53

Answer:

287.64

Step-by-step explanation:

Answer:287.6

Step-by-step explanation:

Answer:

it 4968

Step-by-step explanation:

because you have to multiply 92 by 54 hopes this helped

Answer: R = 37.5 miles per gallon.

Step-by-step explanation:

Sandras truck need one gallon to drive 25 miles, then the rate of Sandra's truck is 25 miles per gallon.

Her sister's car can travel 12.5 more miles with one gallon, so the car travels

25mi + 12.5mi = 37.5 miles with one gallon, the rate is

R = 37.5 miles per gallon.

Now, with that number you can multiply the amount of gallons that you have and you will obtain the total amount of miles that you can travel with that amount of gallons.

Answer:

лдшзщщго

Step-by-step explanation:

Answer: 20x^2 -10x-30

Step-by-step explanation:

Steps to solve:

-8x² + 24x

~Apply exponent rule [ [tex]a^b^+^c=a^ba^c[/tex] ]

-8xx + 24x

~Rewrite 24x as 8 * 3x

-8xx + 8 * 3x

~Factor out common term

-8x(x - 3)

Best of Luck!

Answer: -8x(x-3)

Step-by-step explanation:

Your just factoring the gcf (greatest common factor)\

=-8xx+24x

Rewrite 24 as 8*3

=-8xx+8 *3x

Factor out common term: -8x

=-8x (x-3)

Answer:

(∛125)^5

=  3125.

Step-by-step explanation:

125 ^ (5/3)

= (cube root of 125) to the 5th power

= (∛125)^5

= 5^5

=

Answer:

6x -2y = 8

-6x+5y = 7

3y = 15

y = 5

6x - 2(5) = 8

6x - 10 = 8

6x = 18

x = 3

(3, 5)

Step-by-step explanation:

Answer:

The Martin family pays $5.33 more per hour

The Sanchez family pays $60 more in total

Step-by-step explanation:

The Sanchez family want her to babysit for 15.5 hours for a total of $150.

To find out the hourly rate you do $150/15.5 which is $9.67 per hour.

The Martin family wants her to babysit for a total of 6 hours for $15 an hour.

To find out the total you do $15 x 6 which is $90.

Answer:

x = 12 or x = -3

Step-by-step explanation:

Solve for x over the real numbers:

x^2 - 9 x = 36

Subtract 36 from both sides:

x^2 - 9 x - 36 = 0

x = (9 ± sqrt((-9)^2 - 4 (-36)))/2 = (9 ± sqrt(81 + 144))/2 = (9 ± sqrt(225))/2:

x = (9 + sqrt(225))/2 or x = (9 - sqrt(225))/2

sqrt(225) = sqrt(9×25) = sqrt(3^2×5^2) = 3×5 = 15:

x = (9 + 15)/2 or x = (9 - 15)/2

(9 + 15)/2 = 24/2 = 12:

x = 12 or x = (9 - 15)/2

(9 - 15)/2 = -6/2 = -3:

Answer:  x = 12 or x = -3

Answer:.03x=6

Step-by-step explanation x=200 minutes

Answer:

200 minutes

Step-by-step explanation:

To find this, you should first set up an equation. Since you are trying to find the point where both plans cost the same, set them equal to each other. Let x be the cost for both. Write the equation:

[tex]16.95+0.05x=22.95+0.02x[/tex]

We place the x with the cost per minute because this is what you are trying to find. We add the cost per month.

Solve for x. Subtract 16.95 from both sides and simplify:

[tex]16.95-16.95+0.05x=22.95-16.95+0.02x\\0.05x=6+0.02x[/tex]

Subtract 0.02x from both sides:

[tex]0.05x-0.02x=6+0.02x-0.02x\\0.03x=6[/tex]

Divide both sides by 0.03:

[tex]\frac{0.03x}{0.03}=\frac{6}{0.03}\\ x=200[/tex]

At 200 minutes, the cost for both plans would be the same.

Answer:

no

Step-by-step explanation:

7²+24²=49+576=625=25²≠26²

Answer:

7 hours

y = 0.002 (3500)

y = 7

Step-by-step explanation:

Answer: 7 hours.

Step-by-step explanation:

To solve this, substitute the miles flied (3500) for x in the equation given, and solve for y:

[tex]y = 0.002 *(3500)\\y = 7[/tex]

It will take the airplane 7 hours to fly 3500 miles.

Answer:

The last image (The one going through points (4,1) and (8,2))

Step-by-step explanation:

If the side length is y, and the perimeter is x, x is equal to that value times 4. This means the table of points would look like this:

x     y

4     1

8     2

12    3

And so on. The only graph that is going through these points is the last one. The third graph is wrong because it's the opposite, (1,4) instead of (4,1), and the perimeter will be greater than the side length.

Answer:

D) The coefficient

Explanation:

The coefficient is the number placed before the variable in the expression.

In 3x x is the variable and 3 is the number placed before it making it the coefficient.

Answer:

x = 135,

y = 45

Step-by-step explanation:

45 and y are vertical angles.  That means they are equal

y = 45

45 and x form a straight line which means they sum to 180

45+x = 180

Subtract 45 from each side

45+x-45 =180-45

x = 135

Answer:

v=169

Step-by-step explanation:

[tex]4v=676[/tex]

Divide by 4.

[tex]v=\frac{676}{4}[/tex]

[tex]v=169[/tex]

Hello!

v = 169

Since it is being multiplied (4v), we're going to have to use the opposite operation to solve. The opposite of multiplication is division.

Divide both sides of the equation by 4:

[tex]\frac{4v}{4}[/tex] = [tex]\frac{676}{4}[/tex]

v = 169

Answer:

The slope of the graph is equal to 4

Step-by-step explanation:

When you do y2-y1 divided by x2-x1 you get the fraction 8/2 however when simplified you get 4, 8/2=4

Answer:

The slope is 4

Step-by-step explanation:

Why? Because the point (3,9) is labeled as x1 and y1 and the point (1,1) is labeled as x2 and y2, which means that the equation is set up as 1-9 / 1-3, which equals -8 / -2 , which turns out to be 4 when it is simplified. :)

Answer:

-2

Step-by-step explanation:

From the position of 2 on the x axis, just trace down to the graph.

Where the trace intersects the graph, then trace this point to the y-axis

This gives -2

Answer:

The answer is (-2)

Hope this helps!

Answer: 72

Step-by-step explanation:

Ok, in her legs the options are:

2 jeans + 3 black pants + 1 skirt = 6 options.

on her torso the options are:

2 pinks shirts + 4 striped shirts = 6 options.

And on top of that she has:

2 hooded sweatshirts = 2 options.

The total number of combinations is equal to the product of options for each type of garmet; this is:

C = 6*6*2 =36*2 = 72

So she has 72 different outfits.

Answer:

It is 70 becouse of how many clothing ther is and u just mulytly

it tell me if im right or wrong

thanks stay safe

byebye

Step-by-step explanation:

Answer:

800 + 150 = 950

Step-by-step explanation:

The answer is 950 because if you have $800 and your mom gives you $150 more. You will have a total of $950.

Answer:

800+150=950

Step-by-step explanation:

It is 3.15 x 10^-7. You find what 1.05 x 10^-10 is in scientific notation (0.00000000105), times that by 3000, and you end up with 0.000000315 (3.15 x 10^-7 is the answer)  :)