How many three-letter words have at least two letters the same?

Emily's account balance this Monday is -$8.35 . Her account balance last Monday was $15.75. Which statement explains how to find

Yanka [14]

The correct answer to determine the change in he account is by:

C. Subtracting last Monday's account balance from this Monday's account balance to find that the change in the balance is -$24.10.

Hope This helped :)

8 0

4 years ago

Solve equation 5b - (5b -

tester [92]

Hello I believe your answer is going to be 2 I assumed the b's were x's

4 0

3 years ago

Why did the lady not get arrested after she shot, drowned, and hanged her family?

Dvinal [7]

Answer:

how is this a math question? ;-;

7 0

3 years ago

Read 2 more answers

Can someone help me with 13,14,15 and 16 please

xeze [42]

Answer: -3/5, 18/32, -10/11, and horizontal.

Step-by-step explanation: Remember the equation for slope? Δy (the change in y), over Δx (the change in x). In other words, rise over run. To solve for Δ, you'd have to subtract the second output (y²) from the first (y¹). There are really no rules as to which has to be minuend and the subtrahend, so I chose to subtract (-1,6) from (4,3) for the first problem.

y¹-y² Δy 3-6 -3

------ or ---- so ------- = ----- The slope is represented by -3/5x

x¹-x² Δx 4-(-1) 5

__________________________________________________________

For the second, substitute the values again (make sure you keep the xs and ys together and in the right order, otherwise your answer will be incorrect). Remember that subtracting a negative number is basically just adding a positive number. That's why the slope is 18/32 and not 4/26.

11-(-7) 18

--------- = -------

29-(-3) 32

___________________________________________________________

For number three, they give you a point, then tell you the y-intercept. With that in mind, also know the second point is (0,17), because the x value at the y-intercept is always 0.

7-17 -10

------ = ------- The slope is -10/11x

11-0 11

___________________________________________________________

4-4 0

------ = --------

6-(-9) 15

Because there is no Δy, but there is Δx, we know that the line for y will be straight and shows no change- it will always be at 4. That said, the line will be horizontal.

I hope this helps. I know this is very confusing at first, but with practice, you'll eventually get the hang of it. I've tried to explain the rules to the best of my ability- let me know if there's anything you don't understand or need more help with.

Sincerely,

Lacia :))

5 0

3 years ago

An isosceles triangle whose equal sides measure 8 and whose altitude drawn to the base measures 8

viva [34]

The question is incomplete, the complete question is here

Find the measures of the angles of an isosceles triangle whose equal sides measure 8 and whose altitude drawn to the base measures 4

Answer:

The measures of the angles of the isosceles triangle are 30°, 30° and 120°

Step-by-step explanation:

In a triangle whose sides a, b, c and angles A, B and C, where a is opposite to ∠A, b is opposite to ∠B, and c is opposite to ∠C, the given is

a = c
m∠A = m∠C

The height from ∠B to side b is 4 units

That means the length of the height is half the length of each equal sides, then there is a right triangle its hypotenuse is 8 and the side opposite to the base angle is 4, so we can find the measure of the base angle by using the rule sin(base angle) = $\frac{altitude}{a}$

∵ The base angles are ∠A and ∠C

∵ a = c = 8

∵ The altitude to b is 4

∵ $sin(A)=\frac{4}{8}=\frac{1}{2}$

- By using $sin^{-1}$

∴ m∠A = $sin^{-1}(\frac{1}{2})$

∴ m∠A = 30°

∵ m∠A = m∠C

∴ m∠C = 30°

Use the rule of the sum of the measures of the interior angle of a Δ is 180° to find m∠B

∵ m∠A + m∠C + m∠B = 180

∵ m∠A = m∠C = 30°

∴ 30° + 30° + m∠B = 180°

∴ 60 + m∠B = 180

- Subtract 60 from both sides

∴ m∠B = 120°

The measures of the angles of the isosceles triangle are 30°, 30° and 120°

5 0

3 years ago