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].
Learn more about scientific notation here:
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If the 16 boys in the classroom are 40% of the class how many students re there in class
Answer: 40 students
Step-by-step explanation: All we need to do is do 16/40 to get 0.4 or 40%. So 100% = 40.
Scott wrote the number 39 on the board and said that it was a prime
number because it was an odd number. Is he correct? Explain why
or why not.
2 COLLUM PROOFS 1 question
Answer:
1. <AOB and <XOZ are vert. <'s 1. Given
m<AOB = 80 m<XOZ = 6x+5
2. m<AOB = m<XOZ 2. Vertical <'s are congruent
3. 80 = 6x+5 3. Substitution
4. 75 = 6x 4. Subtraction Property of equality
5. 12.5 = x 5. Division Property of equality
Step-by-step explanation:
A students wants to help her mother in their family store in displaying canned goods. Her mother instructed that the canned should be piled in triangular pile by starting 40 canned goods in the bottom row, 36 in the second row, 32 in the third row, and so on. If the pattern is consistent, how many canned goods will be there in the 7th row?
Answer: The number of canned goods in 7th row = 64.
Step-by-step explanation:
The given numbers of canned goods in every row( starting from first ) is represented as
40 , 36, 32, ...
There is a common difference between numbers(d)= 4
∴ Its is an Arithmetic progression.
First term (a) = 40
nth term in A.P. : [tex]a(n)= a+(n-1)d[/tex]
7th term in this A.P. = 40+(7-1)(4)=40+(6)(4)=40+24=64
So, the number of canned goods in 7th row = 64.
first person to answer gets brainllest A regular hexagon and a rectangle have the same perimeter, P. A side of the hexagon is 4 less than the length, l, of the rectangle. The width of the rectangle, w, is 2 less than the length of the rectangle. What is the perimeter of the hexagon?
Answer:
Perimeter of the hexagon is 36 units
Step-by-step explanation:
if the length is ten using the information provided you will get a perimeter of 36 for both
Answer:
36
Step-by-step explanation:
Hope it helps :)
Brainliest pls?
What is the product of (−4)⋅(−4)⋅(−4)⋅y⋅y using exponents
Answer:
[tex](-4)^{3[/tex]*[tex]y^{2}[/tex]
This should be right.
Please help with this question, thank you.
Answer:
the conclusion is that AC and CB are equal distances because the midpoint is half of the line. hope this helps:)
which expressions are equivalent to -56z+28?
choose 2 correct answers:
a: 1/2 x (28z + 14)
b: (-1.4z + 0.7) x 40
c: (14 -7z) x (-4)
d: (8z - 4) (-7)
e: -2(-28z -14)
Answer:
e
Step-by-step explanation:
Make sure all words are spelled correctly.
Try different keywords.
Try more general keywords.
Try fewer keywords
pls help now
A person is trying to find the height of a flagpole or AB. This person is 1.5 m tall and is
standing at DC. A mirror is placed at point M. This mirror is 6 m away from the person and 120 m away from the flagpole. Angles BMA and DMC are congruent. Find the height of the flagpole or BA.
Answer:
30 m. Your welcome
Step-by-step explanation:
Answer:
30m tall
Step-by-step explanation:
1.5/6 = x/120
Switch sides; cross multiply:
x/120 = 1.5/6
Multiply both sides by 10 and simplify:
x/12 = 5/2
Multiply both side by 12 and get 30m
The track star runs 100m at a rate of 10.4m/s. How long did it take to run 100m?
0.1 m/s
9.65
1040m/s
0.1s
Answer:
Time, t = 9.615 secs.
Explanation:
Speed can be defined as distance covered per unit time. Speed is a scalar quantity and as such it has magnitude but no direction.
Mathematically, speed is given by the equation;
[tex]Speed = \frac{distance}{time}[/tex] ....equation 1
[tex]Time = \frac{distance}{speed}[/tex] .....equation 2
Given the following data;
Distance = 100m
Speed = 10.4m/s
Substituting into equation 2;
[tex]Time = \frac{100}{10.4}[/tex]
Time, t = 9.615 secs.
Fiften is 30 percent of what number?
Answer:
50
hope it helps
Step-by-step explanation:
Answer:
50
Step-by-step explanation:
The way you solve this is by creating an inequality of
30 15
---- = ----
100 x
So you cross multiply which would give you 30x = 1500, then you divide by 30 on both sides leaving you with 50. If you want to check it, you can then multiply 50 by .30 which would give you 15.
2p + 3 = 5 - 6p
what is the value of p in the equation?
Answer:
p=1/4
Step-by-step explanation:
original: 2p+3=5-6p
move variable to one side: 2p+6p=5-3
combine like terms: 8p=2
answer :p=2/8
simplify answer (final answer): p=1/4
2p+3=5-6p
2p+6p+3=5
2p+6p=5-3
8p=5-3
8p=2
Answer: p=1/4
What Is the slope of the line on the graph?
Answer:
the answer is 4x 5y -5x -4y
Step-by-step explanation:
Help ASAP ‼️If m∠A=5x-12 m∠B=2x+18 ∠A and ∠C are supplementary and ∠B and ∠C are supplementary, find x.
Answer please. For money.
x = 21.75 (third option)
lol i accidentally added a comment sorry
NEED HELP ASAP!! convert 287 cm to inches
287 centimeters is 112.992 inches
Answer:
112.992
Step-by-step explanation:
divide the length value by 2.54.
Can someone please help me
Answer:i think 8
Step-by-step explanation:
Two Angles are Supplementary when they add up to 180 degrees. They don't have to be next to each other, just so long as the total is 180 degrees.
Ricky and James sold beef for a school fundraiser. Ricky sold 52 pounds and James sold 21 pounds. If their total combined sales were $1,168, how much does each pound of beef cost?
A. 16.00
B. 17.50
C. 13.50
D. 17.00
what is the measure of <4?
Answer:
i not sure but i think its 125
Step-by-step explanation
60% sure is 125
S =4LW + 2WH; S = 96, L= 7, W= 3.
H=
Help please
Answer:
H = 2
Step-by-step explanation:
Order of Operations: BPEMDAS
Step 1: Define
S = 4LW + 2WH
S = 96
L = 7
W = 3
Step 2: Substitute and Evaluate for H
96 = 4(7)(3) + 2(3)H
96 = 84 + 6H
12 = 6H
H = 2
Answer:
H = = 2 H W + 4 L W
Step-by-step explanation:
Substitute the given value into the function and evaluate.
S = 4 L W + 2 W H = = 2 H W + 4 L W
S = 96 = = 2 H W + 4 L W
L = 7 = = 2 H W + 4 L W
W = 3 = = 2 H W + 4 L W
H = = 2 H W + 4 L W
I hope this helps!
Please Mark Brainliest
Sorry If I Overcomplicated it!
how many loonies are in 1 quarter
25 loonies i think but im not so sure
If m∠1 = 123°, m∠5=123
Answer:
Ayo dood whats the ?
Step-by-step explanation:
An elephant can drink up to 6,400 fluid
ounces of water a day. How many gallons of
water can an elephant drink per day?
Answer:
50 gallons
Step-by-step explanation:
An is a mathematical statement that shows two expressions are equal using an equal sign.
No! Because a mathematical statement is actually a statement that is either true or false not a statement that shows two expressions are equal using an equal sign!
Answer:
fix the awser
Step-by-step explanation:
During the summer Frank earned $60 less than three times as much as his brother Fred. Together they earned $1220. How much did they each earn?
Answer:
320, 900
Step-by-step explanation:
pleaseee help me solve this
hello! here is your answer
Answer:
1) ∠2 ≅ ∠7
⇒ they are corresponding angles
2) ∠5 ≅ ∠9
⇒ they are alternate interior angles
3) ∠4 ≅ ∠7
⇒ they are vertically opposite angles
4) if ∠3 ≅ ∠8, then p║q
⇒ they are corresponding angles
5) ∠3 ≅ ∠9
⇒ they are vertically opposite angles
6) m∠2 + m∠3 = 180
⇒ they are co-interior angles
7) ∠4 is vertical to ∠7
8) ∠2 and∠3 are same side interior angles
9) ∠5 corresponds to ∠8
10) one alternate exterior pair is ∠1 and ∠8
hope it helps you!!
Max has 3 textbooks and 2
notebooks in his backpack. The total
weight of his backpack and its
content is 10,5 pounds. Each
textbook weighs 2.5 pounds. Each
notebook weighs 0.25 pound. What
is the weight of Max's empty
backpack?
Answer:
2 pounds
Step-by-step explanation:
the area of a iscoles triangle having base 3 cm and length of the equal side is 2cm is
Answer:
please rotate the picture*
5+4(8n-8)=-1+6 for n
Answer:
n=1
Step-by-step explanation:
5+4(8n-8)=-1+6
5+32n-32=5
5+32n-32=5
-27+32n=5
32n=32
n=1
Answer:
n = 1
Step-by-step explanation:
5 + 4(8n - 8) = -1 + 6
First you have to distribute the 4 leaving the equation to look like this...
5 + 32n - 32 = -1 + 6
Now solve the constants (normal numbers without a variable)
-27 +32n = 5
+27 +27 You have to add 27 to BOTH sides
32n = 32
n = 1
Hope this helps and have a great day!
Triangles ABC and DBC have the following characteristics:
BC is a side of both triangles
∠ACB and ∠DCB are right angles
AC ≅ DC
Which congruence theorem can be used to prove △ABC ≅ △DBC?
AAS
SSS
HL
SAS