Answer:
If you're only counting positive numbers then there are 8,900 four-digit numbers that are not divisible by 100, but if you also include negative numbers then your answer would be 17,800.
7. Write an equation and graph the line given the
point: (-4,-6) and slope: 5
Plzzz help
Answer:
y=5x+24
Step-by-step explanation:
Use formula y=mx+b and insert the given values
x = -4
y = -6
m = 5
-6 = 5(-6) + b
-6 = -30 + b
+30 +30
24 = b
Now you have value of b, rewrite the equation.
y=5x+24
Danny bought 10 plastic disas. Each disc weighs 0.9 ounces. How much do the 10 plastic discs weigh in all?
Answer:
9
Step-by-step explanation:
Answer:
9 ounces
Step-by-step explanation:
In this equation, we are given two things. We know how much each disc weighs (.9 ounces) and we know how many discs Danny bought (10 discs).
To figure out how much the discs weigh, we must do the following steps:
We first step up the equation: 10 discs times .9 ounces
Then, we multiply the numbers to get our final answer: 10(.9 ounces)= 9 ounces
The 10 discs weigh a total of 9 ounces.
The formula for the area of a triangle is A= 1/2 bh, where b is the base of the triangle and h is the height of the triangle. What is the length of the base if the area is 22cm? and the height is 8 cm?
Answer:
The length of the base = 5.5cm.
Step-by-step explanation:
A = 1/2 bh
A = 22cm^2 h = 8cm.
22 = 1/2 b(8)
22 = 4b
hence b = 5.5cm.
Suppose you are standing 19 feet from the base of a flagpole. You are able to determine that the angle of elevation to the top of the pole is 64.60 . Determine the height of the flagpole.
Answer:
40 ft
Step-by-step explanation:
Given that the angle of elevation is 64.6°, this means that the angle of depression from the top of the flagpole is 180 - 90 - 64.6, which is 25.4°
We can solve by using the sine rule, or the cosine rule.
Using the sine, we have
Sinθ = OPP/HYP, we're going to use the angle of depression, and thus
Sin 25.4° = 19/x, on rearranging, we have
x = 19/ sin 25.4°
x = 19/0.4289
x = 44.30 ft.
Now, we use Pythagoras theorem to get the height of the flagpole.
44.3² = 19² + y²
y² = 44.3² - 19²
y² = 1962.49 - 361
y² = 1601.49
y = √1601.49
y = 40 ft
Find the complex conjugate of a complex number:
[tex]i.[/tex]
⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀_____________
⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀;; ∥ • Given:
⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀Complex number [tex]i[/tex].
⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀_____________
⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀;; ∥ • To find:
⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀Complex conjugation of a complex number, which is presented above.
⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀_____________
⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀;; ∥ • Hello, Dariosl!
⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀_____________
⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀;; ∥ • Decision:
⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀_____________
⠀ The complex conjugation of a complex number [tex]i[/tex] will be the conjugation [tex]-i[/tex].
⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀_____________
⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀;; ∥ • How and why?
⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀_____________
⠀In order for us to check the correctness of our decision, we need to take the following easy step, which is performed very simply:
⠀;; ∥ Complex-conjugate to a purely imaginary number [tex]bi[/tex] is the opposite number [tex]-bi[/tex]: [tex]i[/tex] → [tex]-i[/tex].
⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀_____________
⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀;; ∥ • Sincerely, Your ElskerNorge! :)
⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀_____________
what is the product -9x(5-2x) A. -18x^2-45x B. -18x^2-45x C. -18x^2-45x D. 18x-45x
Answer:
18x^2-45x
Step-by-step explanation:
-9x(5-2x)
-9x*5=-45x
-9x*-2x=18x^2
18x^2-45x
A survey of 50 retail stores revealed that the average price of a microwave was $375 with a sample standard deviation of $20. Assuming the population is normally distributed, what is the 99% confidence interval to estimate the true cost of the microwave
Answer:
The 99% C.I is ( 367.703, 382.297 )
Step-by-step explanation:
Given that:
sample mean [tex]\overline x[/tex] = 375
Population standard deviation [tex]\sigma[/tex] = 20
Sample size n = 50
The level of significance [tex]\alpha[/tex] = 1 - C.I = 1 - 0.99 = 0.01
From z tables:
The critical value = [tex]Z_{\alpha /2}[/tex] = [tex]Z_{0.005}[/tex] = 2.58
The margin of error E = [tex]Z_{\alpha /2}[/tex] [tex]\times \dfrac{\sigma }{\sqrt{n}}[/tex]
The margin of error E = [tex]2.58 \times \dfrac{20}{\sqrt{50}}[/tex]
The margin of error E = 7.297
The limits of 99% C.I are expressed as:
Lower limit = [tex]\overline x - E[/tex] = 375 - 7.297
Lower limit = 367.703
Upper limit = [tex]\overline x + E[/tex] = 375 + 7.297
Upper limit = 382.297
The 99% C.I is [tex]\overline x \pm E[/tex] = [tex]375 \pm 7.297[/tex]
= ( 367.703, 382.297 )
10 ) Which Property of Multiplication is shown? (5 + 3) x 2 = 5 x 2 + 3 x 2
A. Identity Property
C. Associative Property
B. Distributive Property
D. Commutative Property
Answer:
B. Distributive Property of Multiplication
Step-by-step explanation:
The given equation shows that two similar expressions are equal to each other.
How? Well, they both equal 16 to start. These are the same expressions - one is just distributed out!
[tex]2 \cdot (5 + 3) \\2 \cdot 5 + 2 \cdot3 \\10 + 6 = 16[/tex]
and...
[tex]5 \cdot 2 + 3 \cdot 2\\10 + 6\\16[/tex]
In the equations, the only difference is that we distributive 2 and multiplied in by 5 and 3!
I hope I was of assistance! #SpreadTheLove <3
What is 54/x=6??????????????????????
Answer:
The answer is 9
Hope this helps
54/ x=6
cross multiply
6x= 54
divide both sides by 6
6x/ 6 =54/6
x=9
Find the value of the missing number.
Answer:
x=45; y=27.
Step-by-step explanation:
1. y=90-(35+18)=27;
2. x=90-(18+y)=90-(18+27)=45.
What number should you multiply this equation by to eliminate the decimals?
5x + 0.1x − 0.3 = 0.2x
Answer:
by 10
Step-by-step explanation:
Which fraction is greater than 1/2
A.) 5/8 B.) 4/8 C.) 1/8 D.) 3/8
Answer:
A. 5/8
Step-by-step explanation:
If you want to find the equivalent of 1/2 in 8ths, what times 2 will give you 8? The answer is 4, so multiply the numerator and denominator by 4 to get 4/8. So, 4/8 is equal to 1/2, meaning that 5/8 is greater than 4/8. Hope this helped!
(-3)(-3)(-3) please help me I need the answer
Answer:
-27 ?
Step-by-step explanation:
^that's if ur multiplying
Tyrone swam eight less than three times as many laps as Marcia if Tyrone swam 13 laps how many laps did Marcia swim
Answer:
63 laps
Step-by-step explanation:
Tyrone-13
Marcia-(Tyrone+8)x3
fill in the equation
(13+8)x3
21x3
63
Answer:
63
Step-by-step explanation:13+8=21
21x3=63
I hope this helps
Collin needs to write a four page essay if you ask 4/5 of a page each night how many nights will it take him to finish the essay
Answer:
5 nights.
Step-by-step explanation:
(4 pages) / (4/5 of a page) = 5 nights
point (2,-4) is reflected across the x-axis. what are the coordinates of it's image?
Answer:
(2,4)
Step-by-step explanation
x stays the same and y becomes positive
determine whether the given function is linear or nonlinear. if it is linear determine the equation of the line
The domain of a function f(x) is x 20, and the range is ys-1. What are the
domain and range of its inverse function, F1(x)?
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Domain :
[tex]x \leqslant - 1[/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Range :
[tex]y \geqslant 0[/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Thus the correct answer is (( B )) .
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
please help. algebra 1
Answer:
a. 2.84 :)
Step-by-step explanation:
6.92 - 4.08 = 2.84
If the average speed of a car is 45km/h, how far can it travel in 40 mins?
Answer:
30km
Step-by-step explanation:
Lorena borrowed $1950 to buy books and a tablet for her freshman year of college. She will pay off the loan in 10 months at an annual simple interest rate of 5.75%. How much interest will she be charged and what is the total amount she must pay at the end of the 10 months? Round your answer to the nearest cent.
Answer:
Step-by-step explanation:
Simple Interest = Principal * Rate * Time/100
Given
Principal (amount borrowed) = $1950
Rate = 5.75%
Time = 10month
Convert time to year
To do that, we will divide the value in months by 12 i.e Time = 10/12
Time = 5/6 years
Substitute into the formula and find the simple interest
SI = (1950 * 5.75*5/6)/100
SI = (1950 * 5.75*5)/600
SI = 56,062.5/600
SI = $93.4375
Hence she will be charged interest of $93.4375
To get the total amount after 10 months, we will use the formula;
Amount = Principal + Interest
Amount = $1950 + $93.4375
Amount = 2,043.4375
Hence she must pay back $2,043.4375 after 10 months
is y=3x-3 proportional
Answer:
i don't think so
Step-by-step explanation:
Find the area of this parallelogram. Be sure to include the correct unit in your answer.
Answer:
182sq.in.
Step-by-step explanation:
base = 14in
height = 13in
Area of a parallelogram = base × height
Area = 14 × 13
= 182 sq.in.
What is (1+2+3+4+5) + (1*2*3*4*5)?
HURRY
Answer:
135
Step-by-step explanation:
Answer:
135
Step-by-step explanation:
(1+2+3+4+5)= 15
(1*2*3*4*5)= 120
15+120=135
a recipe calls for 2 carrots for every 3 stalks of celery walter is preparing the recipe for a group and uses 15 stalks of celery how many carrots should he use
Answer:
10 carrots
Step-by-step explanation:
have a good day!
Walter uses 10 carrots for every 15 stalks of celery
Which steps are needed to solve this equation?
b+ 6 = 21
O Subtract 6 from both sides of the equation.
The answer is b= 15.
Check the solution by substituting 15 for b.
O Subtract 6 from the left side and add 6 to the right side of the equation.
The answer is b= 27.
Check the solution by substituting 27 for b.
Add 6 to both sides of the equation.
The answer is b= 27.
Check the solution by substituting 27 for b.
Add 6 to the left side and subtract 6 from the right side of the equation.
The answer is b-15.
Check the solution by substituting 15 for b.
Answer:
Subtract 6 from both sides and plug 15 back into b to check
Answer:
the answer is A.
you can solve this problem easily by subtracting 21 - 6 and you get your answer. :)
4. Ray RU bisects LQRS. If mSRU =
50° and m2QRU = (+10) . Find the value of x.
Find m2QRS. (Lesson 1.2) (1 point)
Answer:
X=60
m<QRS= 90
Step-by-step explanation:
assuming that it all adds up to 180
Add all like terms:
50+10+1/2x=180
1/2x+60=180
-60 -60
1/2x= 120
÷1/2= ÷1/2
x= 60
1. 1/2(60)+10
40
Which fraction is equivalent to StartFraction 5 Over 20 EndFraction? StartFraction 4 Over 16 EndFraction, because StartFraction 5 Over 20 EndFraction = one-fourth and One-fourth = StartFraction 4 Over 16 EndFraction StartFraction 4 Over 12 EndFraction, because StartFraction 5 Over 20 EndFraction = one-fourth and One-fourth = StartFraction 4 Over 12 EndFraction StartFraction 4 Over 19 EndFraction, because StartFraction 5 Over 20 EndFraction = StartFraction 5 minus 1 Over 20 minus 1 EndFraction = StartFraction 4 Over 19 EndFraction StartFraction 4 Over 15 EndFraction, because StartFraction 5 Over 20 EndFraction = one-fifth = StartFraction 5 minus 1 Over 20 minus 5 EndFraction = StartFraction 4 Over 15 EndFraction
Answer:
A
Step-by-step explanation:
Michael can ride his bike 3 miles in 24 minutes. At this rate, what is the distance, in miles, Michael can ride his in one hour?
Answer:
7.5 miles
Step-by-step explanation:
3x=24
x=8
60/8
7.5
Answer: 480 miles
Explanation: To find the distance Michael rode in miles, we have to find how many minutes he can ride in one mile. So we will divide 24(minutes) into 3(miles).
24 ÷ 3 = 8
Michael can ride 1 mile in eight minutes.
Since there are sixty minutes in one hour, multiply eight by sixty to find how many miles Michael can ride his bike.
8 × 60 = 480
Micheal can ride 480 miles in one hour.
Plz mark brainliest:)
Mark is having birthday party.he brought 8 pizzas to be shared equally among 40 people. Which two equivalent representation could be use to determine how much pizzas each guest will receive
8÷40 = 40/8
8÷40= 8/40
40÷8= 40/8
40÷8= 8/40