I need help on this pre-calculus function about domain and range.​

Answer:

The surface area is 283

The goal is to multiply by a certain number (10, 100, 1000, etc.) so that when the original number is subtracted from the multiple, the repeating element cancels out. 10x = 2 is the result of multiplying by ten.

Answer:

20

Step-by-step explanation:

step 1

Open the parentheses 2 minuses equals one positive. So we now have -1+5

-1 +5 = 4. 3+2 =5, 4 * 5 = 20

Answer:

3

Step-by-step explanation:

2

Answer:

-28.4

Step-by-step explanation:

Remove parentheses:

(6.2+2+6)(-5+| -18÷6| )

Simplify 6.2 +2 to 8.2

(8.2+2+6)(-5+| -18÷6|)

Simplify  8.2+6 to 14.2

14.2(−5+∣−18÷6| )

Divide −18÷6= -3

14.2(−5+∣−3∣)

Simplify ∣−3∣

you get: 14.2 x (-5+3)

Remove parentheses and simplify -5+3= -2 to get:

14.2 x -2

Hope this helps!!

Answer:

i think 00w 8 (the picture shows question six not seven.)

Step-by-step explanation:

pew pew

Answer:

a=672

b=3,000

c=1,071

d=33

Answer:

We have two similar triangles; triangle ABC and triangle DBE

We can work out the scale factor of the two triangles by checking the corresponding lines

We have line EB correspond to line CB

The scale factor is EB ÷ CB = 30 ÷ 10 = 3

Line EB is 3 times longer than line CB

So, line DE is 3 times longer than line AC

The street light is the line DE and the person standing is the line AC

So, the street light is 3 times taller than the person standing.

Step-by-step explanation:

Answer:

x = 6, BC = 60

Step-by-step explanation:

6x + 2x + 1 = 81

8x + 1 = 81

8x (+ 1 - 1) = 81 - 1

8x = 80

8x/8 = 80/8

x = 10

6x

6(10) = 60

Answer:

x + 2 + 3x = 30

Step-by-step explanation:

Both lengths are unknown, but Ginny's car length is described in terms of Zach's car length, so we choose a variable for Zach's car length.

Let x = Zach's car length.

Zach's car length is x.

"Ginny's car is 2 more than 3 times the length of Zach's car."

Ginny's car length is 2 + 3x.

Add the lengths:

x + 2 + 3x

"The sum of the lengths of both cars is 30 inches."

x + 2 + 3x = 30

Answer: x + 2 + 3x = 30

Answer: l = 2w + 5

Step-by-step explanation:

The length is five meters more than something. Since the 5 meters more than (addition) comes first, you know it's not going to be in parentheses and is instead going to precede the next term. Right now, your equation should look like

l = 5 + ?

Now, we get to "twice the width." This is the second term, the ? in the previous equation. Two times the width can just be written as 2w, so that's how you're going to express it. In the end, your final equation just comes out to

l = 5 + 2w

Answer:

172.97

Step-by-step explanation:

128÷74%=1.7297297297297

There is rounded to the nearest hundredth so the answer is 172.97

Hey there! Here's your answer!

D.) 85

Here's why:

The two angles are alternate interior angles, which are congruent because DE and XY are parallel lines.

I really hope this helps you! :)

Hope it helps you and have a great day

Answer:

Trong toán học và vật lý, vectơ là một phần tử của không gian vectơ. Đối với nhiều không gian vectơ cụ thể, các vectơ đã nhận được các tên cụ thể, được liệt kê dưới đây.

Step-by-step explanation:

Answer:

[tex]1 \\ because \frac{7}{8} = .875 \\ thnk \: you[/tex]

Answer:

1 is larger

Step-by-step explanation:

It is helpful to recall what a fraction means. The denominator is the number of parts that you divide the units by. The numerator is the number of parts you take.

Divide 1 into 8 equal parts. Each part is 1/8. Now take 7 of those parts. You took 7/8. Since there are 8 parts in 1 and you only took 7 of them, you took less than 1. 7/8 means 7 parts out of 8.

That means that 7/8 is less than 1.

7/8 < 1

1 is larger

Answer:

7

Step-by-step explanation:

You've said that both triangle are equal.

This means, both are in proportion

Let the unknown side be x

4 : 5 : x = 36 : 45 : 63

Divide LHS by 9

4 : 5 : x = 4 : 5 : 7

Since you may see x and 7 are same. So, the missing side is 7.

Answer:

Step-by-step explanation:

[tex]\frac{AB}{PQ} = \frac{BC}{QR}[/tex]                      #1 Find same sides  

So, [tex]\frac{4}{36} =\frac{BC}{63}[/tex]                 #2 fill it in.

36BC= 252                 #3 Cross multiply.

[tex]\frac{36BC}{36}[/tex]= [tex]\frac{252}{36}[/tex]                      #4 Divide by 36

BC= 7                           #5 Here's your answer!

If you want to check, plug the sides in.

[tex]\frac{4}{36} =\frac{5}{45} =\frac{7}{36}[/tex]

[tex]\frac{1}{9} =\frac{1}{9} =\frac{1}{9}[/tex]

The siplified fractions should all equal the same number. If they do, the triangles are similar.

Hope this helps!

Plz mark me the Brainliest!

Good Luck!

Answer:

Should be C sorry if not

Step-by-step explanation:

When I do the math in my head I take the distance between 0.75 and 0 and the distance between 0.25 and 0 and add them together giving me the distance between the two points. To get that distance you would subtract the two numbers from each other with the absolute value brackets on the outside of the equation so it will not make the negative a positive. If the negative is a positive, it would make it 0.50 which would be incorrect. The distance between the two points here would be 1.0 if that was the equation. That is a way I used to figure out equations like this when I was younger. Take it for what it is worth.

Answer:

3rd option

Step-by-step explanation:

Given

S = 3[tex]r^{4}[/tex]t  ( isolate t by dividing both sides by 3[tex]r^{4}[/tex] )

[tex]\frac{S}{3r^4}[/tex] = t

Answer:

(0,-3)

Step-by-step explanation:

I used desmos

Answer:

y int = -3

Step-by-step explanation:

we get the y int when x = 0. so 6(0)-4y=12 would get us y= -3

Answer:

12

Step-by-step explanation:

Use a fraction calculator

Answer:

i believe itd be 66 dollars :D

hope this helps !!

Step-by-step explanation:

x - 18 = 48

add 48 and 18 and get the answer = $66

The given information is,

→ $18 less than the original price is $48.

Let the value of original price be x.

The equation will be,

→ x - $18 = $48

Let's find the required solution,

→ x - 18 = 48

→ x = 48 + 18

→ [x = 66]

Hence, the original price is $66.

Answer:

[tex]y = \frac{ - 3}{4} x + 7[/tex]

Answer:

Ur question are not logic i think u made some mistakes

Answer:

[tex]4 {a}^{3} + 5 {b}^{4} = 4( {2}^{3}) + 5( {5}^{4} ) \\ = 4(8) + 5(625) \\ = 32 + 3125 \\ = 3157[/tex]

I hope I helped you^_^