Answers
Related Questions
Which sign makes this number sentence true? 780 ÷ 2 [ ] 390
Answers
Answer:
The sign that makes the sentence true is an equal sign, =.
2500 + 110h < 3000 can you pls answer this
Answers
Answer:
4.5454545454545454. . .
Step-by-step explanation:
Original equation:
2500 + 110h < 3000
Subtract 2500 from both sides
110h < 500
Divide both sides by 110
h < 4.5 (rounded to the nearest tenth)
Hope this helps :)
Please consider Brainliest :)
If i=sqr-1, what is the value of i^3?
-1
i
1
-i
Answers
Answer:
After solving we get [tex]\mathbf{i^3=-i}[/tex]
Option D is correct.
Step-by-step explanation:
We are given:
If [tex]i=\sqrt{-1}[/tex] we need to find the value of [tex]i^3[/tex]
Solving:
[tex]i=\sqrt{-1}[/tex]
Taking cube on both sides
[tex]i^3=(\sqrt{-1})^3\\[/tex]
We can write [tex]a^3= a^2.a^1[/tex] Using this for solving:
[tex]i^3=(\sqrt{-1})^2.(\sqrt{-1})\\We \ know \ (\sqrt{-1})^2 =- 1 \ and \ \sqrt{-1}=1 \\i^3=-1(i)\\i^3=-i[/tex]
So, after solving we get [tex]\mathbf{i^3=-i}[/tex]
Option D is correct.
Answer this and I will make your day better just watch!!!!
Answers
Answer: :) hi! <3
Step-by-step explanation:
Which expression is equivalent to 3(x+4)? O A. 3x + 4x O B. 3 + x + 4 O C. 3x+4 O D. 3x + 12
Answers
Answer:
D.
Step-by-step explanation:
Multiply what's inside the parentheses by 3 to get the answer. 3x+12
Answer:
D. 3x+12
Step-by-step explanation:
3(x+4)
3*x=3x
3*4=12
3x+12
Which multiplication expression is equal to 1/2 ÷ 4/5?
A. 1/2 x 4/5
B. 2/1 x 4/5
C. 1/2 x 5/4
D. 2/1 x 5/4
Answers
Answer:
[tex]C. \frac{1}{2} \times \frac{5}{4} [/tex]
The diameter of a cookie is 2 inches. If \piπ = 3.14, what is the area of the cookie, rounded to the nearest tenth?
Answers
A= 3.14 x 1^2
A= 1
Answer:
6.28 or 7
Step-by-step explanation:
you have to time pie x inches
pie x inches
3.14 x 2
=6.28 rounded up 7
A heating pad takes 5,657 Watts during each time it is turned on. If you only use it for 28 minutes, how much CO2 was created? Round to 1 decimal.
Answers
Answer: 2.6 pounds of CO₂
Step-by-step explanation:
1 kilowatt per hour produces 0.99 pounds of C02.
The watts used was;
= (5,657 * 28/60 hours) / 1,000
= 2,639.93333333
In kilowatts;
= 2,639.93333333/1,000
= 2.6399333 kilowatts
CO2 produced;
= 2.6399333 * 0.99
= 2.613533967
= 2.6 pounds of CO2
Find the inverse: f(x) = 4 + 4/5 x.
Answers
Answer:
f−1(x)=5x4−5
Step-by-step explanation:
To find the inverse, interchange the variables and solve for y.
A pool is being filled at a constant rate of 5 gallons every 2 minutes. Which graph has a slope that best represents this rate?
Answers
Answer:
21.4 gpm
Step-by-step explanation
Simplify the expression: 2(3 + 10u) =
Answers
how many quarts of a 75% acid solution must be mixed with 3 quarts of a 10% acid solution to make a 60% acid solution
Answers
Answer:
yes it is correct tq
Step-by-step explanation:
my friend
Answer:
10 quarts.
Step-by-step explanation:
Work with amounts of pure acid.
There is 0.10*3 quarts of pure acid in the 10% solution.
3*0.10 + 0.75x = 0.60(x + 3) where x is the number of quarts of 75% acid.
0.30 + 0.75x = 0.60x + 1.8
0.15x = 1.5
x = 10 .
whats up wate is 3000+39645
Answers
Answer:
MARK ME BRAINLIEST BRO!!!!!!!!
Step-by-step explanation:
is -3/7 a rational or irrational number?
Answers
Answer:
rational
Step-by-step explanation:
it can express as a ratio of two numbers, therefore it is rational. it wouldn't be rational if it was for example 0.333333 that goes on forever.
ENJOY
OLMOST MERRY CRISLER
Answers
write a word problem for 8x - 5 = 40
Answers
Answer:
Bob only has 40 dollars but he wants to buy a membership at the gym. It cost 8 dollars per month to receive a gym card. Bob went to the Gym in person so they gave him a 5 dollar off coupon. How many months can Bob buy?
Step-by-step explanation:
Answer:
eight and a variable subtracted by five equals forty
Step-by-step explanation:
given: 2c=d-2b, c=a-b, d=a+b prove: a=b
Answers
Answer:
D
Step-by-step explanation:
6. Slope =
Y-Intercept
Equation in slope-intercept form:
Answers
Y intercept = 1
Equation: 0.5x +1
(03.06a LC) How many solutions does the equation 4x + 8 = -2 - 2 + 5x have? (5 points)
Two
One
None
Infinitely many
Answers
Answer:
1 x=12
Step-by-step explanation:
combine -2 ans -2 then add -8 the subtract 5 from 4 and divde 1 from each side
Can you help find which are functions?
Answers
Answer:
A and C are Functions
Step-by-step explanation:
They pass the vertical line test.
The way you know if a set of coordinates are not a function is if they have multiple points that have the same Y value.
simplify the equation
Answers
Answer:
The answer is C
Step-by-step explanation:
I say this because you have to simplify and plug in the numbers to get answer choice c
plz help me out if you can
Answers
Answer:
D $26
Step-by-step explanation:
$5.39 plus what equals 8.17
Answers
Answer:
2.78
Step-by-step explanation:
All I did was just subtract
9. A certain color paint should have a mix of blue and green in a ratio of 5:2.
needs to use 8 gallons of green paint, how many gallons of blue paint sho
order to obtain the right color?
Answers
Answer:
20 gallons of blue paint
Step-by-step explanation:
The ratio is blue to green right?
5:2
You already know the green
8
divide 8 by its part of the ratio.
8/2
4
Times 5 by 4
20
20 blue paints and 8 green paints.
20 if u get it right
Answers
Step-by-step explanation:
hey there....I only knew the last question
Use place value multiplication with powers of 10 or equivalent fractions to explain what is happening mathematically to the decimal points in the divisor and the dividend before dividing
Answers
Answer:
436.8 x 100 / 62.08 x 100 = 43680/6208
Step-by-step explanation:
When you write the problem as a fraction, multiply the numerator and denominator by 100. Multiplying each by 100 resulted in both numbers being whole numbers. 436.8/62.08 is the same as 43,680/6,208.
List the number from greatest to least 3/2, 0.75,-24,-3/2
Answers
Answer:
3/2, 0.75,-3/2, -24
Step-by-step explanation:
I think that's the answer
help!! how do i solve this and what is the answer??
Answers
Answer:
Yes you got it right.
Step-by-step explanation:
x= -7/4
x= -1 3/4, x= -1.75
A researcher wants to construct a 90% confidence interval for the proportion of elementary school students in Seward County who receive free or reduced-price school lunches. A state-wide survey indicates that the proportion is 0.50. Using this estimate, what sample size is needed so that the confidence interval will have a margin of error of 0.1?
Answers
Answer:
The sample size is [tex]n =68[/tex]
Step-by-step explanation:
The population proportion is [tex]\^ p = 0.50[/tex]
The margin of error is [tex]E = 0.1[/tex]
From the question we are told the confidence level is 90% , hence the level of significance is
[tex]\alpha = (100 - 90 ) \%[/tex]
=> [tex]\alpha = 0.10[/tex]
Generally from the normal distribution table the critical value of [tex]\frac{\alpha }{2}[/tex] is
[tex]Z_{\frac{\alpha }{2} } = 1.645 [/tex]
Generally the sample size is mathematically represented as
[tex]n = [\frac{Z_{\frac{\alpha }{2} }}{E} ]^2 * \^ p (1 - \^ p ) [/tex]
=> [tex]n = [\frac{1.645 }{0.1} ]^2 * 0.50 (1 - 0.50 ) [/tex]
=> [tex]n =68[/tex]
FAST!!!
Which graph shows the point M(3, 5)?
5
M
4
4
3
3
M
2
2
1
1
A
B
1
3
2
4
0
5 X
0
1
4
2
5 X
3
5
4
4
3
3
2
N
M M
1
M
4
3
0
1
2
5 X
4
3
0 1 2
5 X
Answers
Answer:
graph A is the answer because the M is at the 3 and it move up 5