In right triangle ABC, AB=6, BC=12, and m∠A=90°. What is the value of cot C?

Jill made scarves and then sold them for $15 each. If Jill spent $150 to make all the scarves, how many scarves need to be sold

lesantik [10]

Answer:

10 scarves

Step-by-step explanation:

each scarf is $15, 10 of them is 150 because 10 x 15 = 150

3 0

3 years ago

Read 2 more answers

The coordinate of M is 3.5 and MN

jonny [76]

Subtract the point A x-coordinate from the midpoint x-coordinate (final-initial) to find the distance between them. This will give you 3. Multiply the by 2 because the midpoint is halfway between point A and B.

8 0

3 years ago

which expression is not equal to the expression shown? 3 to the 3rd power divided by 3 to the negative 4th power. Need the answe

Alecsey [184]

Answer:

$3^{-3}$ ÷ $3^{4}$

Step-by-step explanation:

Evaluate $3^3$ ÷ $3^{-4}$ , then evaluate each given expression to find which of them will give us the same result.

$3^3$ ÷ $3^{-4}$

$27$ ÷ $\frac{1}{3^4}$ (recall: $a^{-x} = \frac{1}{a^x}$

$27$ ÷ $\frac{1}{81}$

$27 * \frac{81}{1}$ (changing from division operation to multiplication by flipping the fraction to our right upside down)

$27 * 81 = 2,187$

Let's compare the expressions in the given options to the value we got above:

Option 1: 3*3⁶

= 3*729 = 2,187 (this is equal)

Option 2: 3⁷ ÷ 3⁰

= 2,187 ÷ 1 (recall: x⁰ = 1, therefore, 3⁰ = 1)

= 2,187 (this is equal)

Option 3: 3³ * 3⁴

= 27*81 = 2,187 (this is equal)

Option 4: $3^{-3}$ ÷ $3^{4}$

$\frac{1}{3^3}$ ÷ $81$

$\frac{1}{27}$ ÷ $81$

$\frac{1}{27} * \frac{1}{81}$ (changing from division to multiplication)

$= \frac{1*1}{27*81}$

$= \frac{1}{2,187}$ (not equal)

$3^{-3}$ ÷ $3^{4}$ i not equal to $3^3$ ÷ $3^{-4}$ .

8 0

3 years ago

Bill is purchasing according lessons. There's $20 materials fee and lesson cost $15. Write an equation for the situation and the

saul85 [17]

X = number of lessons, y = total cost

y = 15x + 20 <== ur equation

when total bill was 125...y = 125
125 = 15x + 20
125 - 20 = 15x
105 = 15x
105/15 = x
7 = x <=== if Bill took 7 lessons, it would cost 125 <==

3 0

3 years ago

Complete the parts in each step to find the area of each trapezoid?

Sergio039 [100]

The area of the trapezoid is 20 in².

Solution:

Given data:

Length of the bottom base = 7 in

Length of the top base = 3 in

Height of the trapezoid = 4 in

Step 1: Area of the trapezoid formula,

$$A=\frac{b_{1}+b_{2}}{2} \times h$