$99 watch with a 40% discount

Answers

Answer 1

Answer: first change the percent to a decimal 40% = 0.4
then subtract 99 - 0.4 = 98.6
the answer is 98.6

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Complete the solution of the equation. Find the value of y when x equals -2. -4x+8y=-24

Answers

Answer:y=-4

Step-by-step explanation:

Multiply -4 by -2 you get positive 8 rewrite the equation subtract 8 from both sides that leaves you with 8y=-32 your final step is to divide both sides 8 that leaves you with -4 which is the answer.

Answer:

y=-4

Step-by-step explanation:

-4(-2)+8y=-24

The negatives cancel out to make a positive.

8+8y=-24

subtract the number without a variable from the answer.

-24-8=-32

You are taking more away from the negative.

8y=-32

Divide the 32 by 8 to get your answer

-32/8=-4

Therefor your answer is y=-4

I am a number between 10 and 25. I am a multiple of 8 and one of my digits is 2 what number am I?

Answers

24 could be it................

the number is 24.........

In triangle PQR, PR = 23mm, QR = 39mm, and m<R = 163 degrees. Find the area of the triangle to the nearest tenth.

Answers

Answer: 131.1287 square mm (approx)

Step-by-step explanation:

The area of a triangle,

$A=(1)/(2) * s_1* s_2* sin \theta$

Where $s_1$ and $s_2$ are adjacent sides and $\theta$ is the include angle of these sides,

Here PR and QR are adjacent sides and ∠R is the included angle of these sides,

Thus, we can write,

$s_1 = PR= 23\text{ mm}$ , $s_2=QR=39\text{ mm}$ and $\theta = 163^(\circ)$ ,

Thus, the area of the triangle PQR,

$A=(1)/(2) * 23* 39* sin163^(\circ)$

$A=(262.257419136)/(2) = 131.128709568\approx 131.1287\text{ square mm}$

Cards with the numbers 1 through 40 are placed in a box and thoroughly shuffled. What is the probability of randomly selecting a card with a number less than 10 or a multiple of 15?

A.

B.

C.

D.

Answers

9/40 + 2/40 = 11/40

hope this helps

What is trinomial? Please answer

Answers

A trinomial is an expression with three components being multiplied. For example, abc, or 7xy,

A trinomial is an expression being multiplied Example:
a*b*c

The graph of which function has a minimum located at (4, –3)?f(x) = x2 + 4x – 11
f(x) = –2x2 + 16x – 35
f(x) = x2 – 4x + 5
f(x) = 2x2 – 16x + 35

Answers

Answer:

Step-by-step explanation:

In order to solve the question, we have to derivate each function.

1) f(x) = x2 +4x -11

Then,

f'(x)= 2x +4

Now, if f'(4)=0 we would have a critical point, which could be a minimum. Let's find out:

f'(4)= 2*4 +4 = 12 ≠ 0 then this function doesn't not have a minimum at (4, -3)

2) f(x) = –2x2 + 16x – 35

Then,

f'(x)= -4x +16

Now, if f'(4)=0 we would have a critical point, which could be a minimum. Let's find out:

f'(4)= -4*4 16 = 4 ≠ 0 then this function have a critical point at (4, -3)

then,

f''(4) =-4 <0 then we have a minimum at (4, -3)

3) f(x) = x2 – 4x + 5

Then,

f'(x)= 2x -4

Now, if f'(4)=0 we would have a critical point, which could be a minimum. Let's find out:

f'(4)= 2*4 -4 = 4 ≠ 0 then this function doesn't not have a minimum at (4, -3)

4) f(x) = 2x2 – 16x + 35

Then,

f'(x)= 4x -16

Now, if f'(4)=0 we would have a critical point, which could be a minimum. Let's find out:

f'(4)= 4*4 -16 = 4 ≠ 0 then this function doesn't not have a minimum at (4, -3)

It is the third option on Edge

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