Need help please and other questions

Answer:

[tex]\huge\boxed{x=9}[/tex]

Step-by-step explanation:

We know that ∠A and ∠B are the same exact length. Since one of the angles is given to us in an exact length, we can set the measures equal to each other.

[tex]4x + 9 = 45[/tex]

Let’s solve for x.

[tex]4x +9-9=45-9\\\\4x=36\\\\x=9[/tex]

Hope this helped!

Answer:

Step-by-step explanation:

for IV you do 40^2+30^2=c, or 1600+ 900=c. c= 2500 and unsquare that you get 50

Answer:

the ans of III is 50 and IV is12

Answer:

It’s 3.5 percent

Step-by-step explanation:

Population increases by 3.6% every year.

The population in question doubles every 20 years and you need to find out the annual rate of increase.

You can use the rule of 72 which allows you to calculate the doubling time of a variable by the formula:

Time to double = 72 / Rate

As we already have the time the double, the rate is:

20 = 72 / Rate

Rate x 20 = 72

Rate = 72/20

Rate = 3.6%

The population therefore increases by 3.6% every year.

Find out more at https://brainly.com/question/2262294.

Step-by-step explanation:

12k=3k

12k-3k=0

9k=0

k=0/9

k=0

Answer:

5

Step-by-step explanation:

13 + (-8) = 5

Answer:Anthony

Step-by-step explanation:

Answer:1 and 1/2

Step-by-step explanation:

Answer:

1 and 1/2

Step-by-step explanation:

Blue whales, about 80 feet in length and over 250,000 pounds in weight, are much bigger than whale sharks.

The blue whale is 1  × 10^1 times heavier than a white rhinoceros.

The number is written in the form  [tex]a \times 10^b[/tex] where we have it [tex]1 \leq a < 10[/tex]. The number b shows the order, which is the most important figure for which scientific notation is used. It tells us how much order large or small a value is in powers of 10. Scientific notations have some of the profits as Better readability due to compact representation. Its value in terms of the power of 10 is known, which helps in the easy comparison of quantities differing by a large value.

The weight of the animals can be written in scientific notation.

To determine that how much heavier the blue whale is, we need to divide the weight of the blue whale by the weight of the white rhinoceros.

The division operation that is used to group a number into equal parts using another number.

Weight of the blue whale ÷ weight of the white rhinoceros

2 x [tex]10^5[/tex] ÷ 2 x [tex]10^4[/tex]

(2 ÷ 2) x ([tex]10^{5-4}[/tex])

1  × 10

Hence, The blue whale is 1  × 10^1 times heavier than a white rhinoceros.

Learn more about scientific notation here:

https://brainly.com/question/3112062

#SPJ5

Answer:

A

Step-by-step explanation:

Answer:

1(29 + 29)= a

Step-by-step explanation:

If the DVD costs 29$, and he buys 2, then you will just add them and multiply them by one.

Answer:

0.5 or -0.5

Step-by-step explanation:

4x - 3 = 3x - 1

-1 + 3 = 2

4x = 3x - 2

4 - 3 = 1

1x = -2 or positive 2

1x ÷ -2

-0.5 or 0.5

-----‐------------------------

4x-3 = 1

3x -1 = 0.5

f= 1

g= 0.5

1 x 0.5 = x

x= 0.5

Answer:

24

Step-by-step explanation:

Hey there! I'm happy to help!

We have 2 thousand dollar bills.

2000

4 hundred dollar bills...

2000+400

and 6 ten dollar bills

2000+400+60=2460

We multiply this amount by 10.

2460(10)=24600

This car costs $24,600

Have a wonderful day! :D

Answer:

The car costs 24,600

Step-by-step explanation:

You have to add 2000 + 400 + 50 =2460 and the multiply 2460 x 10 = 24600

The largest number of groups she can have is c) 8

Given:

104 nickels

88 dimes.

Now let determine  the largest number of groups she can have

2×2×2×3=104

2×2×2×11=88

Based on the above the greatest common divisor will be:

Greatest common divisor=2×2×2

Greatest common divisor=8

Inconclusion The largest number of groups she can have is 8

Learn more here:

https://brainly.com/question/20294947

Answer:

im honestly not sure but to help out a little bit im sure its either negatively skewed or constant

Step-by-step explanation:

Answer:

It is C. Negatively skewed.

Step-by-step explanation:

If the bigger portion of the data is to the right, then the data is negatively skewed.

Answer:

found this i think this should help with your question

Step-by-step explanation:

Answer:

sixteen or 1.6 X 10E2

Step-by-step explanation:

Answer: 2^4

Step-by-step explanation:

2•2•2•2=

4 • 4=

16

Answer:

I am too so sorry

Step-by-step explanation:

Answer:

3 and 3/4 yards

Step-by-step explanation:

she needs 10 and a half yards, if she already has 2 and a half and 4 and 1/4th, she would only need 3 and 3/4 yards left

Answer:

  C.  contrapositive

Step-by-step explanation:

The contrapositive is formed by negating both statements and swapping them, as here.

Step-by-step explanation:

Let's first consider a rotation about a vertical axis (x=0 or x=a).

Using washer method, the volume is:

∫ᵧ₁ᵞ² π (x₂² − x₁²) dy

∫ᵧ₁ᵞ² π ((x₂ − a)² − (x₁ − a)²) dy

Using shell method, the volume is:

∫ₓ₁ˣ² 2π x (y₂ − y₁) dx

∫ₓ₁ˣ² 2π (x − a) (y₂ − y₁) dx

First, notice that with washer method, the differential dy is parallel to the axis of rotation.  With shell method, the differential dx is perpendicular to the axis of rotation.

Also, notice that the limits of integration must match the differential.

Choosing the best method will depend on the function.

If x² can be written in terms of y, and integrated, then washer method is the one to use.

If y can be written in terms of x, and integrated, then shell method is the one to use.

In other words, use washer method if x = f(y) is simple to integrate.  Use shell method if y = f(x) is simple to integrate.

If instead we rotate about a horizontal axis (y=0 or y=a), the volume with washer method is:

∫ₓ₁ˣ² π (y₂² − y₁²) dx

∫ₓ₁ˣ² π ((y₂ − a)² − (y₁ − a)²) dx

Using shell method, the volume is:

∫ᵧ₁ᵞ² 2π y (x₂ − x₁) dy

∫ᵧ₁ᵞ² 2π (y − a) (x₂ − x₁) dy

We choose washer method when y² = f(x) is easy to integrate.

We choose shell method when x = f(y) is easy to integrate.

So here's the takeaway:

If the axis of rotation is x = 0 or x = a, and x² = f(y) is easy to integrate, use washer method.

If the axis of rotation is y = 0 or y = a, and y² = f(x) is easy to integrate, use washer method.

Otherwise, use shell method.

Answer:

$324

Step-by-step explanation:

We need to make a proportion:

[tex] \frac{259.20}{x} = \frac{80}{100} [/tex]

[tex]25920 = 80x[/tex]

[tex]x = 324[/tex]

x is 1%. So 100% = 324*100 = 32400 cents = $324

Hope I helped :)

Answer:

132

Step-by-step explanation:

3 = 1/44x

÷1/44. - 1/44

= 132. = x

Answer:

x = 132

Step-by-step explanation:

3 = (1/44)x

3/(1/44) = (1/44)x/(1/44)

132 = x

Answer:

c. over 65:))

Answer:

450

Step-by-step explanation:

Answer:

there should be no greather less than sign

Answer:

ok here's the graph for the system of equations, so you can look at it and find the points that are in the purple shaded area

hope this helps!

(also, this is from m4th way *the 4 is an a* which is a super helpful online calc)

Answer:

Find the measure of what?

Step-by-step explanation:

Next time please write the entire equation. Thank you!