Answer:
answer is A
Step-by-step explanation:
50+90=140
180-140=40
brainliest plz
Tyler has 25 pieces of candy. Ethan takes 4/5 of Tyler’s candy. Steve says Ethan took almost all of Tyler’s candy. Is Steve correct?
Answer:
yes, steve is correct
Step-by-step explanation:
Answer:
yep, he's right. Ethan took 20 pieces of candy
Step-by-step explanation:
4/5 = 20/25
Solve the equation for exact solutions over the interval [0, 2π).
Answer:
[tex]\displaystyle x=\left\{0, \frac{2\pi}{3}, \frac{4\pi}{3}\right\}[/tex]
Step-by-step explanation:
We want to solve the equation:
[tex]-2\cos^2(x)=-\cos(x)-1[/tex]
Over the interval [0, 2π).
First, notice that this is in quadratic form. So, to make things simpler, we can let u = cos(x). Substitute:
[tex]-2u^2=-u-1[/tex]
Rearrange:
[tex]2u^2-u-1=0[/tex]
Factor:
[tex](2u+1)(u-1)=0[/tex]
Zero Product Property:
[tex]2u+1=0\text{ or } u-1=0[/tex]
Solve for each case:
[tex]\displaystyle u=-\frac{1}{2}\text{ or } u=1[/tex]
Back-substitute:
[tex]\displaystyle \cos(x)=-\frac{1}{2}\text{ or } \cos(x)=1[/tex]
Using the unit circle:
[tex]\displaystyle x=\left\{0, \frac{2\pi}{3}, \frac{4\pi}{3}\right\}[/tex]
in a class of students, the following data table summarizes how many students play an instrument or squirt. What is the probability that a student who plays this for also plays an instrument?
Answer:
Step-by-step explanation:
What's a squirt? Did you mean sport for the word for?
So there are 15 separate students in all who play a sport and an instrument. There are 4 more that play an instrument, but not a sport.
There are 8 that that do not play an instrument including 2 that don't do either.
So the total is 15 + 4 + 8 = 27
My best guess is that 15 out of 27
P(sport and instrument) = 15 /27 = 5/9 or 0.556
What is the probability of getting 5 baskets ina row out of 10 shots
Two of the statements are true; one is a lie.
Select the one that is a lie.
Then explain your reasoning.
Use the sketching tool to help explain if you'd like.
The measure of ∠CAF is 25 degrees.
∠DAE ≌ ∠FAB.
∠BAF and ∠EAB are complementary.
Answer:
Step-by-step explanation:
The last statement is false.
∠BAF and ∠EAB are supplementary angles.
Solve the quadratic equation by using either a numeric or a graphic approach.
x2 - 12x – 144 = 0
a. x= -12.4 or x = -7.4
c. x = 9.4 or x = -7.5
b. x = 19.4 or x = -7.4
d. x = 9.4 or x = -3.4
Answer:
B
Step-by-step explanation:
Question 3 of 11 Lucy asked 5 friends how many books they each read last month. She put her data in a table and found the total books read. Friend Ben Ann Dan Ellie Caty Total Number of books 0 0 3 3 10 Find the mean and the median of the data set. Determine which of these values is greater. A. The median, 3, is greater than the mean, 2. B. The median, 4, is greater than the mean, 0. . C. The mean, 3. is greater than the median, 2 D. The mean, 4, is greater than the median, 3.
Step-by-step explanation:
mean = 0 + 0 + 3 + 3 + 10 ÷ 5
= 16 ÷ 5
= 3.2
median = 3
16+8+4+2+1+1/2+1/4+1/8+....
Find the sum of the infinite geometric series.
Answer:
31 7/8
16+8=24
4+2=6
2/4+1/4=3/4+1/8=7/8
Evaluate the expression.
20^2 + 6(9 + 3) = 274
RETRY
Answer:
False
Step-by-step explanation:
I'm pretty sure you're asking if the question is true or false and in this case, it is not true.
20^2+6(9+3)=274
evaluate power
400+6(9+3)=274
multiply numbers
400+72=274
add numbers
472=274
they are not the same number which means that statement wasn't true
The Sine Function
Choose the graph of the following function:
f(x) = -2 sin(x)
a. Graph A
b. Graph B
c. Graph C
d. Graph D
Please select the best answer from choices provided
Answer:
D. Graph D
Step-by-step explanation:
I calculated it logically
Suppose a city with population 900,000 has been growing at a rate of 7% per year. If this rate continues, find the population of this city in 19 years
Answer:
Future population in 19 years = 3,254,580 people (Approx.)
Step-by-step explanation:
Given:
Current population of city = 900,000
Growth rate of population = 7%
Number of year = 19
Find:
Future population in 19 years
Computation:
A = P[1+r]ⁿ
Future population = Current population[1+g]ⁿ
Future population in 19 years = 900,000[1+7%]¹⁹
Future population in 19 years = 900,000[1+0.07]¹⁹
Future population in 19 years = 900,000[1.07]¹⁹
Future population in 19 years = 900,000[3.6162]
Future population in 19 years = 3,254,580
Future population in 19 years = 3,254,580 people (Approx.)
which expression is represented by the phrase "9 less than 5 times a number"?
What's the output of a system modeled by the function ƒ(x) = x5 – x4 + 9 at x = 2?
Answer:
f(x)=x5-x4+9
if x=2,. f(2)= 2⁵-2⁴+9
=32-16+9
=16+9
f(2) =25
Solve for x.
x+14
15x - 74
x = [?]
Enter
Answer:
###########
Step-by-step explanation:
Answer:
Solution given:
x+14=5x-74[corresponding angle]
74+14=5x-x
x=88/4
x=22
The graph of a line has a slope of 3 and passes through the point (-4,-5).
What is the equation of the line in point-slope form?
Answer:
3x - y + 7 = 0
Step-by-step explanation:
The given point is , ( -4 , -5) and the slope is 3. The point slope form is ,
=> y - y₁ = m( x - x₁)
=> y - (-5) = 3 { x - (-4) }
=> y +5 = 3( x + 4 )
=> y + 5 = 3x + 12
=> 3x - y + 12 - 5 = 0
=> 3x - y +7 = 0
Hence the equation of the line is 3x - y + 7 = 0 .The slope of the line below is 1.5. Write the equation of the line in point-slope
form, using the coordinates of the labeled point. Do not use parenthesis on
the y side.
(4,3)
Answer:
[tex] y - 3 = 1.5(x - 4) [/tex]
Step-by-step explanation:
Given:
Slope = m = 1.5
Coordinates of labelled point = (a, b) = (4, 3)
Point-slope equation takes the form of [tex] y - b = m(x - a) [/tex].
Therefore, to write the equation, substitute a = 4, b = 3 and m = 1.5 into [tex] y - b = m(x - a) [/tex].
Thus:
[tex] y - 3 = 1.5(x - 4) [/tex]
Practice solving roblems involving the volume or
cylinders, cones, and spheres.
Ant
What is the volume of the sphere in terms of r?
V=
IT in 3
6 in
Done
Answer:
V = 4.187r³
Step-by-step explanation:
Volume of a sphere is expressed using the formula;
V = 4/3πr³
r is the radius
Substitute π = 3.14 into the formula
V = 4/3 * 3.14r³
V = 4.187r³
Hence the volume of a sphere in terms of the radius is V = 4.187r³
Is it possible for a triangle to have a 54 degree angle and a 126 degree angle? Explain why or why not.
Answer:
No
Step-by-step explanation:
Those are only 2 angles and they already equal 180, Every single triangle has a sum of 180 and if you already hit 180 with only 2 out of the 3 points, it's not possible
Answer:
No
Step-by-step explanation:
No, because the 3 angles of a triangle have to add up to 180 degrees. The given 2 angles already add up to 180 degrees leaving no room for the missing angle.
O2) Work out 30% of £5.80.
Answer:
1.74
Step-by-step explanation:
Multiply 5.80 times .30
Answer:
1.74
Step-by-step explanation:
To solve this, lets multiply the value by the percentage.
Our value is 5.8
And our percentage is 30%.
Lets convert this into a decimal, to do this, divide 30 by 100:
30/100
=
0.3
Now that we have the percentage in decimal form, multiply it by the 5.8:
5.8*0.3
=
1.74
This is your answer!
Hope this helps! :)
5 fractions with denominator of 1 between 0 and 1/14
Answer:
Are there options to choose from?
Step-by-step explanation:
If the ratio football players two basketball players at your school is 7:5 then how many basketball players are there if they are 21 football players
Answer:
I think that there are 15 basketball players.
Step-by-step explanation:
If there is a ratio of football to basketball players of 7:5, and there are 21 football players. i just divide 21 by 7 and get 3. so if we multiply the 5 in the ratio by 3 we get 15. so I think the answer is 15. if not then ignore my answer. if so the brainliest please?
This question has had me confused for about an hour, please help
Pls help! I need to show my work!
Answer:
Step-by-step explanation:
68 frefq4gtrhrsahhrhshrr
Evaluate the expression for x^2×x^1 for x=9
Answer:
729
Step-by-step explanation:
x^2*x^1 = (9)^2 * (9)^1
= (9)^3
= 729
Helppp me quick !!!!!!!!!!!!!!!!!!
Answer:
Look at explanation
Step-by-step explanation:
For a) It is TRUE
For b) it is TRUE
For c) it is FALSE
Hope this helps!! :)
Answer:
okay, the answer to this question is listed below;
for a it says that half pupils choose maths.
And as you can see the results in the circle that it is true.
for the question c it says most pupils choose science that PE, as you can see the the circle that PE is a little more than science, so this Answer is false
A factory produced 150 tons
Answer:
Nice
Step-by-step explanation:
but tons of wut'
Which mixed number is equivalent to 38 divided by 7
The mixed number equivalent to 38 divided by 7 is 5 3/7.
To find the mixed number equivalent to 38 divided by 7,
we need to divide 38 by 7 and express the result as a mixed number.
=38 ÷ 7
= 5 remainder 3
Or 7 | 38 | 5
35
______
3
So, the quotient is 5 and the remainder is 3.
So, the mixed number equivalent to 38 divided by 7 is 5 3/7.
Learn more about Mixed Fraction here:
https://brainly.com/question/29019463
#SPJ6
I have no idea how to solve this
Answer:
awww neither do i
Step-by-step explanation:
lol I got a 72 on my matb homework going to go jump off a cliff
Mike drinks 2/5 of a litre of juice each day.Juice costs £4.40 for a 2 litre carton and £2.60 for a 1 litre carton.Mike buys enough juice to last for 7 days.What is the lowest price Mike can pay for this juice?Show how you decide.
Gordon types 2,508 words in 38 minutes. Find the unit rate. Gordon types words per minute.
Answer:
66 words per minute
Step-by-step explanation:
In 38 minutes , words that can be typed by Gordon = 2508 words
In 1 minute, words that can be typed by Gordon = 2508/38
= 66 words
Therefore Gordon types 66 words per minute.
hope it helps :)
Answer:
66
Step-by-step explanation:
To find the unit rate you would need to find how many words Gordon can type in one minute. To do that, all you need to do is divide 2,508 by 38 (which would get you 66 words). If you set up a proportion to solve this it would look somewhat like 2,508/28 = 66/1.
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