Write 0.0000000642 in scientific notation.
Answer: 6.42 × 10^ − 8
Hope this helps!
The number 0.0000000642 in scientific notation is written as; 6.42 × 10^ − 8
How does scientific notations work?The number is written in the form [tex]a \times 10^b[/tex] where we have [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.
A Better readability due to compact representation , the value in terms of power of 10 is known, which helps in easy comparison of quantities differing by a large value.
Here The number 0.0000000642 in scientific notation is written as;
[tex]6.42 \times 10^{ -8}[/tex].
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the area of the larger square is ____ times larger than the area of the small square
Answer:
The area of the larger square is 16 times larger than the area of the small square.
22 Evaluate the expression for x = 2
3x2 + 6
23 Evaluate the expression for x = 5
x -(-5)
It’s the 22 and 23 at the bottoms
ASAP WILL GIVE 20 POINTS
Answer:
22. 18
23. 10
Step-by-step explanation:
22
you plug the number for the variable into the equation (3(2)²+6order of operations say exponents first so you do 2²=4 so you have 3(4)+6then you multiple 3•4=12 so 12+6finally you add 12+6=1823
plug in the number for the variable so 5–(-5)so a negative and a minus will make it addition (negative + negative = positive)do it is 5+5 which equals 10Someone plz answer this
Answer:
6.2x10^3
Step-by-step explanation:
I just used a scientific calculator
Maya is taking her friends to a concert. Each ticket costs
$25, and souvenir T-shirts are $12 each. There is a $4
service fee for the entire purchase. She has $130. If she
buys 3 tickets, what is the maximum number of T-shirts
she can buy?
If x = number of tickets and y= number of T-shirts, which of the following
inequalities could you use to answer the problem?
Answer:
C. 25x+12y+4≤ 130
Step-by-step explanation:
Each ticket cost $25, so x would be the number of tickets she has to buy.
25x
Each T-shirt cost $12, so y would be the number of T-shirts she can buy.
12y
And since there is an service fee for the entree purchase, that's another $4.
+4
The cost of everything has to be less than $130, so the equation would be:
25x+12y+4≤ 130
find the slope y=-4x+3
Answer:
-4
Step-by-step explanation:
m=slope in y=mx+b
Answer:
-4
Step-by-step explanation:
y=mx+b
m=slope
b=y-intercept
-4=m(slope)
3=b(y-intercept)
Hope the graph wasn't to confusing :)
I hope this helps! :)
Did she get a A on the math test ?
Answer:
which principle prevents a brach from abusing its power
Step-by-step explanation:
Answer:
No
Step-by-step explanation:
16/20=0.8 therefore she received an eighty percent.
The number of years that Zach has been on the soccer team is 2 less than 5
times the number of years that Anderson has. In total, the boys have been on
the soccer team for 10 years. How long has each boy been on the soccer team?
Answer:
Brad has been on the team for 8 years. Apply that and that means that Anderson has been on the soccer team for 2 years.
Step-by-step explanation:
I dont know how to explain lol i made an equation and figured it out
Step-by-step explanation:
let x be the number of years that Zach has been on the soccer team and y the number of years Anderson has been on the soccer team.
So, reading our problem it seems that
x=5y-2
x+y=10
replacing x on the second formula we take that 5y-2+y=10
6y-2=10
6y=12
y=2
so x=5y-2=5*2-2=10-2=8
The graph below shows the time Andrea spent reading one day. Write a few sentences to describe the relationship between the time Andrea spent reading and the number of pages she read.
Answer:
the more pages she read, the more time she read for.
Step-by-step explanation:
helppp
Robert bought 3 baseball caps for the same amount and 1 baseball jersey that cost $45. Without tax, the total cost of the items is $90. What is the cost of each baseball cap?
Answer: The cost of each baseball cap = $15.
Step-by-step explanation:
Let x = cost of each baseball cap
Given; cost of each baseball jersey= $45
Total coast of 3 baseball caps and 1 baseball jersey = $90
i.e. [tex]3x+45=90[/tex]
[tex]\Rightarrow\ 3x=45\\\\\Rightarrow\ x=\dfrac{45}{3}\\\\\Rightarrow\ x= 15[/tex]
Hence, the cost of each baseball cap = $15.
Answer: it is A have a good day
Step-by-step explanation:
Four more than one-third x
Answer:
four more than 1/3 would be 1 and 2/3
Step-by-step explanation:
9514 1404 393
Answer:
(1/3)x +4
Step-by-step explanation:
One-third x is ...
(1/3)x
Four more than that is ...
(1/3)x +4
_____
Additional ways this can be written
1/3x +4
4 +1/3x
x/3 +4
4 +x/3
During tax-free weekend, Amy bought pencils for $1.25 each. After using a coupon which saved her $3, she spent a total of $2. How many pencils, x, did Amy purchase?
Answer:
4
Step-by-step explanation:
1.25* 4=5
5-3=2
Find (9.3 X 10^6) + (1.8 X 10^4).
Express your answer in scientific
notation.
Please answer i'm studying for a test tomorrow :D
Answer:
7.5 × 10²
Step-by-step explanation:
WILL MARK BRAINLY AND CASHAPP
2(x) = 3x^(2)+ 2x
Answer:
x=0
Step-by-step explanation:
to solve the equation:
2(x) = 3x²+ 2x
swap the sides:
3x² = 0
Divide both sides:
x²=0
Solution:
x=0
simplify 7/9 14 (please help)
the answer is 1/18 i belive bc in the way u asked this is kinda confusing so im sorry if im wrong
7 plus twice a number.
Answer: 7 +2x
Step-by-step explanation:
7 plus twice a number
Twice a number - 2x
7 plus 2x
Simplify 12 + 3(2x - 3) + 4
Answer:
Subtract
9
from
12
.
6
x
+
3
+
4
Add
3
and
4
.
6
x
+
7
Step-by-step explanation:
Which one don’t lie!!!!!!!!
Answer: 1/8
Step-by-step explanation:
Hope this helps
Answer:
1/8
Step-by-step explanation:
(4-2) / (32-16) = 2/16 = 1/8
What is m m − 9 = −13
Answer:
m=-4
Step-by-step explanation:
hope that helps:)
Answer:
-4
Step-by-step explanation:
m= - 13 + 9
calculate
__________
solution
m=-4
If CE bisects ZBCD and if m ZBCE = 3x - 6
and mZECD = 2x + 11, find mZBCD. Is
ZBCD acute, right, or obtuse?
Answer:
m∠BCD = 90°
∠BCD is a right angle
Step-by-step explanation:
If a ray bisects an angle, that means it divides the angle into two equal parts in measure
∵ Ray CE bisects ∠BCD
→ Means divide it into two angles BCE and ECD which equal in measures
∴ m∠BCE = m∠ECD = [tex]\frac{1}{2}[/tex] m∠BCD
∵ m∠BCE = 3x - 6
∵ m∠ECD = 2x + 11
→ Equate them to find x
∴ 3x - 6 = 2x + 11
→ Add 6 to both sides
∵ 3x - 6 + 6 = 2x + 11 + 6
∴ 3x = 2x + 17
→ Subtract 2x from both sides
∵ 3x - 2x = 2x - 2x + 17
∴ x = 17
∵ m∠BCE = [tex]\frac{1}{2}[/tex] m∠BCD
→ Substitute x in the measure of ∠BCE to find it, then use it to
find m∠BCD
∵ m∠BCE = 3(17) - 6 = 51 - 6
∴ m∠BCE = 45°
∵ 45 = [tex]\frac{1}{2}[/tex] m∠BCD
→ Multiply both sides by 2
∴ 90 = m∠BCD
∴ m∠BCD = 90°
→ The measure of the acute angle is less than 90°, the measure of
the obtuse angle is greater than 90°, and the measure of the
right angle is 90°
∴ ∠BCD is a right angle
Somebody, please help me. Please show the work too
Answer:
x = 48
Step-by-step explanation:
0.75x - 9 = 27 / + 9
0.75x = 36 / : 0.75
x = 48
It takes Susana 10 seconds to complete 5 math
problems. How many math facts can she complete
in 35 seconds?
Answer:
If you understand what I wrote you can get the answer.
Step-by-step explanation:
First find how long it takes her for each problem which is 10 seconds / 5 problems = 2 seconds per problem. Then take 35 seconds and divide it by 2 seconds which gives the number of problems she did in 35 seconds.
HELP
Which expressions are equivalent to 8(-10x+3.5y-7)? Select two options.
-80x+24.5y-56
-80x+28y-56
80x+28y+56
4(-20x+7y-14)
-4(-20x+7y-14)
Answer:
Its a,c and e
Step-by-step explanation:
I just took the quiz
PLZ HELP! DUE IN 10 MINUTES!! I just need the second box! I believe the first one is correct also...
Answer:
ASA congreunce
Step-by-step explanation:
1. 16 X 19 =
Find the product.
10
9
90
10
100
6
60
54
Partial Products
What are some external and internal character traits of each character in Tuck Everlasting. Please include text evidence from the book.
Answer:
this is the math part of Brainly... try the literature part for book reviews
Step-by-step explanation:
Question 1 of 10
A birthday cake was cut into equal pieces, and 3 pieces were eaten. The
fraction below shows how much cake was left over. According to the fraction,
into how many pieces was the cake cut?
7
10
o
A. 3
B. 7
C. 10
D. 13
Answer:
Step-by-step explanation:
It’s 10 pieces in all before people ate it.
Suppose a friend tells you she paid a total of $19,875 for a car, and you’d like to know the car’s list price (the price before taxes) so that you can compare prices at various dealers. Find the list price of the car if your friend bought the car in : Lilburn with a percentage of 7%
Answer:
10.31%
Explanation:
This is the answer
friend bought the car in Lilburn with a percentage of 7% ie the price list of the car is $18483.75.
How do I calculate percentage?If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100.The proportion therefore refers to a component per hundred.Per 100 is what the word percent means.The letter "%" stands for it.Percentage, which meaning "per 100," designates a portion of a total sum.The use of percentages is widespread and diverse.For instance, many statistics in the media, bank interest rates, retail discounts, and inflation rates are all expressed as percentages.For comprehending the financial aspects of daily life, percentages are crucial.The friend paid total of $19,875 for a car.
7% of 19,875 = 1391.25.
The list price of the car = 19,875 - 1391.25 = 18483.75
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if sally has 456 bells for her cows and her friend only has 1 and sally gives her friend 400 how many does sally have left?
Answer:
Step-by-step explanation:
Sally will have 56 bells left over. It is simple subtraction you subtract 400 from 456 because that is how many bells she is giving away.
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Solve the magic Square *
Write the next 4 terms.
a) +8, +4,0, -4,...