Answer:
-11.48
Step-by-step explanation:
-7.2 + (-4.28)
-7.2 - 4.28
-11.48
a common mistake people make when working with exponents is to multiply the base by the exponent instead of raising the base to the power of the exponent. For instance, they would mistakenly say that 2^3 is 6 (because 2x3=6) when the correct answer is actually 8 (2x2x2=8) are there any pairs of numbers for which this mistake in thinking actually gives the correct answer? In other words are there any solutions to the equation a^x=a X what are the?
Answer:
The pair of number are (2 and 1), (2 and 2)Step-by-step explanation:
The pair of number that makes the expression [tex]a^x = ax[/tex] true are 2 and 2 as shown:
where a = 2 and x =2
2² = 2*2
2² = 4
and:
2*2 = 4
Hence 2² = 2(2) = 4 making the expression [tex]a^x = ax[/tex] true for both pair of numbers
Also the number pair 1 and 2 makes the expression correct as shown:
[tex]2^1 = 2(1)\\2 = 2 (true)[/tex]
This summer, 1\3 of children will ride
bikes. An additional 1/4 of children will ride
scooters. What fraction of children will
ride bikes and scooters?
Answer:
ok so
1/3×1/4=1/12
Step-by-step explanation:
Answer:
5/12
Step-by-step explanation:
Fractions must have common denominators
1/3= 4/12
1/4=3/12
4/12+3/12=7/12
12/12-7/12=5/12
A department store buys snow boots from a supplier for s dollars. The store manager decides on a 33% markup.find the retail price of snow boots, when the department store pays $20 to the supplier for each pair of snow boots?
Answer:
$26.60
Step-by-step explanation:
it takes avery 48 seconds to sprint 365 m. what is her average speed?
Answer:
7.6 meters a second
Step-by-step explanation:
Calculator
Pls help! I don’t get this, 7th grade math, Lesson 8 Unit 2
Answer:
Honestly if you dont have to show your work just look up "how many degrees Farenheit is 20 degrees celsius" just repeat for the rest.
Step-by-step explanation:
The batting Wang Xiu Ying uses to fill quilts has a thermal conductivity rate of 0.030.030, point, 03 watts (\text{W})(W)left parenthesis, start text, W, end text, right parenthesis per meter (\text{m})(m)left parenthesis, start text, m, end text, right parenthesis per degree Celsius (^\circ\text{C})( ∘ C)left parenthesis, degrees, start text, C, end text, right parenthesis.
Answer:
Step-by-step explanation:
The question is incomplete. Here is the complete question.
the batting wang xiu ying uses to fill quilts has a thermal conductivity rate of 0.03 watts (W) per meter(m) per degree celsius. what is the batting thermal conductivity when w/cm•c
Given
K = 0.03W/m°C
Required
Convert K to W/cm°C
Since 1m = 100cm,
K = 0.03w/1×100cm°C
K = 3×10^-2w/10² cm°C
K = 3 × 10^-2w/10² cm°C
K = 3w× 10^{-2-2}cm°C
K = 3w×10^-4cm°C
K = 0.0003w/cm°C
Answer:
0.0003
Step-by-step explanation:
DID IT ON KHAN
and Since 1m = 100cm,
K = 0.03w/1×100cm°C
K = 3×10^-2w/10² cm°C
K = 3 × 10^-2w/10² cm°C
K = 3w× 10^{-2-2}cm°C
K = 3w×10^-4cm°C
K = 0.0003w/cm°C
what is 9/12 in simpleist form
Answer:
It's 3/4
Step-by-step explanation:
The Greatest Common Factor is 3.
divide that by 9 and 12, 9 divided by 3 is 3
12 divided by 3 is 4.
find area of circle
Answer:
should be 314.16 possible that is incorrect because I calculated it by pie and not by 3.
Answer:
A = 314 cm^2
Step-by-step explanation:
A = pi x r^2
A = 3.14 x (10 x 10)
A = 3.14 x 100
A = 314 cm^2
5x - 26 = x + 50, then the value of x i
Answer:
x=19
Step-by-step explanation:
work shown either above or below
There is an initial fee to join a gym, plus a
monthly charge. The table represents the linear
relationship between the total cost of joining
the gym and the number of months a person is
a member. What is the y-intercept of the line,
and what does it represent in this situation?
I took a pic of the table
Answer:
the equation of the line is y = -1/-30 - 3⅙ and the y intercept is -3⅙.
Step-by-step explanation:
Using, the formula y1+y2/x1-x2,
Choosing any two points, make the expression:
1-2/125-155
simplify:
-1/-30
the slope of the equation is -1/-30.
to find y intercept, using the function y=mx+b, plug in the slope and one of the two points that you used:
y would be 2
x would be 155
b is the y intercept
2= -1/-30•155 + b
2=5⅙+b
b = - 3⅙
the equation of the line is y = -1/-30 - 3⅙ and the y intercept is -3⅙.
What is the vertex form of the function y = x2 + 8x – 3
Answer:
the answer is y=(×+4)^2 -19
WILL MARK AS BRAINLIEST BUT PLEASE HURRYY!!!!
What is the y-intercept of a line that has a slope of –3 and passes through point (0, -7)?
O-7
O-3
ОО
O4
Answer:
(0, -7)
Step-by-step explanation:
y = -3x - 7
y -int - > (0,-7)
hope this helps!
Math club has a mean score on a standardized test of 85 with a standard deviation of 3. What is the probability of scoring below a 79 on the test?
2.5%
1
2.35%
.15%
2
2.65%
Answer:the second one
Step-by-step explanation:
is square root of 4 a irrational numbers
Answer:
yes
Step-by-step explanation:
if a even number can go into a even number a even number of times its a irrational number
Answer: no it is rational
Step-by-step explanation: A number is only irrational if it has endless decimals after it.
Henry makes $12.50 per hour for the first 40 hours he works in a week. For 5 points
each additional hour he makes $18 per hour. How much did he make if he
worked 44 1/2 hours last week? *
Answer:
He made $581 if he worked 44 1/2 hours last week
Step-by-step explanation:
Let us solve the question
∵ Henry makes $12.50 per hour for the first 40 hours
∵ For each additional hour, he makes $18 per hour
→ We need to find how much he made if he worked 44 1/2 hours
→ At first, find his earning for the first 40 hours
∵ His earning in the first 40 hours = 40 × 12.50
∴ His earning in the first 40 hours = $500
→ Find how many hours he worked after the first 40 hours
∵ 44 1/2 - 40 = 4 1/2 hours
∴ He worked 4 1/2 hours over the first 40 hours
→ Find his earning from them
∵ His earning in 4 1/2 hours = 4 1/2 × 18
∴ His earning in 4 1/2 hours = $81
→ Now add the two amounts to find his total earning
∵ His total earning = 500 + 81
∴ His total earning = $581
∴ He made $581 if he worked 44 1/2 hours last week
5x - 2 = 8 + 5y
Solve for y and show work.
I=prt solveing for t
Answer:
t= i/pr
Hope this helps!!!!!!!!
Martin is an after school math tutor . He noticed that 6 people still needed help on 2/5 of the tutoring session time was left.Scince each person was given an equal amount of time, martin wrote the expression below to find the fraction or the toutoring session each person who still needed help would be allotted. 2/5 divided by 6 which expression is equivalent to martins expression?
Answer:
6/15 ÷ 6
Step-by-step explanation:
Martin is an after school math tutor
He noticed that 6 people still needed help on 2/5 of the time that was left
Martin wrote the expression
2/5 ÷ 6
This expression can be used to determine the number of persons who still need help
Therefore the expression that is equivalent to Martin's expression is
= 6/15 ÷ 6
Using 3 to divide both 6 and 5 will give
2/5 ÷ 6
Hence the expression which is equivalent to Martin's expression is 6/15 ÷ 6
Answer:
A 6/15 divided by 6 on edge
Please help :) (4-3i)(-3+6i)-(2-i)
Answer:
4+34i
Hope this helps!!!!!!
please Solve
9(x - 11) = 9
Answer:
9(x-11) = 9
9x-99 = 9
9x = 108
x = 108/9
thus,
x = 12
Please help me I actually don’t know the answer
Answer:
the % sign on 3 thats true
Answer:
2. C, D, and A
3. True
Step-by-step explanation:
To make a base for a jar of handmade cream, Barbara needs 3 tablespoons of coconut butter for every cup of beeswax. Which statement below is TRUE about this scenario?
a) The ratio of a jar of handmade cream to coconut butter is 3:1.
b) The ratio of beeswax to coconut butter is 3 to 1.
c) The ratio of beeswax to coconut butter is 1 to 3.
d) The ratio of coconut butter to beeswax is 1 to 3.
Answer:
c) The ratio of beeswax to coconut butter is 1 to 3.
Step-by-step explanation:
A ratio can be defined as a mathematical expression used for the comparison of two (2) values or quantities.
Basically, a ratio gives the relationship between two values or quantities by comparing them together. It is typically written in the form; x : y
In this scenario, to make a base for a jar of handmade cream, Barbara needs 3 tablespoons of coconut butter for every cup of beeswax. The statement which is true about this scenario is that, the ratio of beeswax to coconut butter is 1 to 3.
Given the following data;
Amount of coconut butter (X) = 3 tsp
Amount of beeswax (Y) = 1 cup
The ratio of beeswax to coconut butter is;
Y : X = 1 : 3
Hence, the ratio of beeswax to coconut butter is 1 to 3.
GIVING BRAINLIEST!!! PRETTY SIMPLE QUESTION!!!
Mei subscribed to a magazine at a rate of $24 for 12 issues. When she placed her order, Mei used a coupon that added 3 free bonus issues to her subscription. How did the coupon impact the cost per issue of Mei’s subscription?
O The coupon lowered the cost per issue by $0.40.
O The coupon lowered the cost per issue by $1.38.
O The coupon raised the cost per issue by $0.13.
O The coupon raised the cost per issue by $0.67.
Answer:
The coupon raised the cost per issue by $0.67.
Step-by-step explanation:
Given f(x) = 3x - 4, find f(5). Write your answer as a number.
F(5) means replace x with 5 then solve:
3x-4 = 3(5)-4 = 15-4 = 11
F(5) = 11
3x+2x?? solve for x
btw any cute guys on here??
Answer:
=5x
Step-by-step explanation:
Answer:
x=1
Step-by-step explanation:
3x+2x=5x
5x÷5 x=1
this is the right answer
What is the.least common multiple of 2 and 6
Answer:
2
Step-by-step explanation:
Answer:
The answer to this is: The Least Common Multiple of 2 and 6 is 6.
Step-by-step explanation:
Hope this helps :)
could someone please help me? thank you!
Answer:
B: Two rays
Step-by-step explanation:
with a common endpoint
Answer:
If there isn't a specific type of angle it is B.
Step-by-step explanation:
Hope this helps!! And just to be safe can you show more of the pic?
How do I solve −6 + 9(8 − 2b) using distributive property or combining like terms.
Answer:
66-18b
Step-by-step explanation:
-6+72-18b
66-18b
solving for b
b=3.66 or 3 and 2/3
REPOST
List the fractions and decimals from least to greatest.
13. 0.5, 3/16, 0.75, 5/48,
0.5, 1/5, 00.35, 12/25, 4/5
3/40 , -7/10 , -3/4, 8/10
-3/8, 5/16, -0.65, 2/4
Answer:
5/48, 3/16, .5, .75, 131/5, .35, 12/25, .5, 4/5-3/4, -7/10, 3/40, 8/10-.65, -3/8, 5/16, 2/4Step-by-step explanation:
5/48 = 1.0291666666 | 3/16 = .1875 the rest is obvious1/5 = .2 | 12/25 = .48 | 4/5 = .8-3/4 = -.75 | -7/10 = -.7 | 3/40 = .075 | 8/10 = .8-3/8 = -.375 | 5/16 = .3125 | 2/4 = .5Is this set of ordered pairs a function?
{ (9,9), (7,4), (1, 2), (2,6), (5,0) }