Identify which numbers are written correctly in scientific notation and which are not.
7.8 x 10^1
10.3 x 10^-8
3.5 x 8^4
3 x 10^6
2.12 x 10^-4
3.4 x 10^8
0.18 x 10^5
70 x 10^-9
Answer:70×10^-9
0.18×10^5
10.3×10^-8
Are not written correctly in scientific notation
Step-by-step explanation:they are not written correctly because a number whose absolute value is greater than or equal to 1 and 10 multiplied by an integer per of 10. So for short there either lower than 1 or higher than 10 and need to be between to be scientific notation. I hope this helped you
Evaluate x + y + z for x = 2, y = -3, z = -4.
Answer:
-5
Step-by-step explanation:
first you switch the letters for numbers and add the numbers on paper, calculator, or you just think it all out in your head :D
Answer:The answer would be-5
Plz helps with 2 though 5
Answer:
8 hours will be for the first one.
Answer:
2. 6 bulbs
3. 3 bunches
4. 7 hours
5. 9 bunches
Step-by-step explanation:
A bike trail is 9 1/3 miles long. On the bike trail, signs are placed every 2 1/3miles to let riders know the distance remaining. How many signs are along the bike trail?
A.) 2 signs
B.) 30 signs
C.) 4 signs
D.) 10 signs
Answer: C) 4 Signs
Step-by-step explanation:
9 1/3 ÷ 2 1/3 = 4
find the measure of each angle
Which answer choice represents an equivalent number sentence of "49 - 12"?
A. 37
B. 49 + (-12)
C. 49 + 12
D. 12 - 49
Answer:
B
Step-by-step explanation:
A. 37 isn't a number sentence
B. 49 + (-12) = 49-12. They're the same thing because 49 minus 12 can also be written as 49 plus negative 12
C. 49 + 12 doesn't equal 49-12
D. 12- 49 = -37 which isn't equivalent to 49-12.
Hope this helps!!!
I NEED THIS LIKE, RIGHT NOW. THIS IS DUE AT 3:00
Mark used a number line to model dividing 2 3 by 3. He divided the number line from 0 to 1 in 3 equal sections, and then divided each of those sections into 2 equal parts. Mark says 2 3 ÷ 3 is 1 3 . Is his answer correct? Explain why or why not.
(NO SAMPLE RESPONSES. )
An answer no he is not correct because 23 divded by 3 is 7
Step-by-step explanation:
Answer:
He is wrong.
Step-by-step explanation:
He is wrong because if you use a calculator to find the answer to 23 ÷ 3, The answer it gives you is 7.66666666667, not 13.
im giving free brainlest only if you give it to me
Answer: betttttttttttttttttttttttttttt
Answer:
ok i will
Step-by-step explanation:
What is the area of this triangle?
Answer:
Just need points. 27
Step-by-step explanation:
round 83 960.to the nearest hundred
Answer: it is 8400
Step-by-step explanation:Find the number in the hundred place
9
and look one place to the right for the rounding digit
6
. Round up if this number is greater than or equal to
5
and round down if it is less than
5
.
84000
if u need more math answers there is a cool website free of use called "mathaway" and i use it on all of my assignments and it really helps, i hope that i was useful!
Answer:
84,000
Step-by-step explanation:
I need help with the question in the photo!! Thanks!
(5/2) d - 3/2 = -1/2
Answer:
d=2/5
Step-by-step explanation:
Which value is equivalent
Answer:
the first one is equivalent
Which of the following statements is NOT true? Click all that apply.
The rate of change and the constant of proportionality are the same value in a proportional relationship.
The rate of change and the constant of proportionality are the same value in a proportional relationship.
The value of yx and the value of are different in a proportional relationship.
The value of y over x and the value of are different in a proportional relationship.
The graph of a proportional relationship is represented by a straight line only.
The graph of a proportional relationship is represented by a straight line only.
The constant of proportionality and the k-value are the same value in a proportional relationship
Answer:
The constant of proportionality and the k-value are the same value in a proportional relationship
Answer:
The constant of proportionality and the k-value are the same value in a proportional relationship
Step-by-step explanation:
Step-by-step explanation:
Valarie used a laser to measure the average thickness of a human hair which is 0.0032 meters thick. A grain of sand is 0.0024 meters thick. How do the two thicknesses compare?
Answer:
A human hair is 0.0008 meters thicker.
i think....
Step-by-step explanation:
Answer:
The human hair would be 0.0008 meters thicker, or 8 × [tex]10^{-4}[/tex].
Step-by-step explanation:
Thickness of a Human Hair: 3.2 × [tex]10^{-3}[/tex]
Grain of Sand: 2.4 × [tex]10^{-3}[/tex]
3.2 × [tex]10^{-3}[/tex] - 2.4 × [tex]10^{-3}[/tex]
The table below shows prices for breakfast items at a food truck. Jeffrey ordered 2 breakfast tacos with bacon, an order of potato hash and a cup of coffee. The sales tax for the order was $0.75. He paid for his breakfast with a $10 bill. Breakfast Menu Item Price 1 Breakfast taco - egg & cheese $2.00 1 Breakfast taco - with bacon $2.25 1 Order of potato hash $1.50 Cup of coffee $0.50 How much change should Jeffrey receive from a $10 bill? O A $2.75 O B. $6.50 OC. $8.50 OD. $4.25
Answer: 2.75. In change
Step-by-step explanation:
First add the two breakfast tacos, since one is 2.25$ Two would be 4.50$ Next add the potato hash and cup of coffee, you should get 2.00$ After that add the tacos with the coffee and potato hash which equals 6.50$ and don't forget to add your 0.75. Tax to the 6.50$ once you get 7.25. You need to do 7.25. - 10.00 which would get you your change of 2.75$
Determine whether the ratios form a proportion.
A) Yes, Proportional
B) No, Not Proportional
Answer:yes proportional
Answer:
A
Step-by-step explanation:
Hope this helps! Please consider making me brainliest!!!!!!!!
Jeremy claims that if a linear function has a slope of the same steepness and the same y-intercept as the linear function in the graph, then it must be the same function.
On a coordinate plane, a line goes through points (0, negative 1) and (2, 0).
Which equation is a counterexample to Jeremy’s argument?
y = negative one-half x minus 1
y = negative one-half x + 1
y = one-half x minus 1
y = one-half x + 1
Answer:
y= 1/2x -1
Step-by-step explanation:
(0, -1), (2, 0)
y= mx + b
m= 1/2 (0.5)
b = -1
Answer:
y=1/2x-1
Step-by-step explanation:
i jus got it correct
Cody can walk 1/3 of a mile in 1/6 of an hour. How many miles can he walk in 2 1/3 hours if he continues at the same pace?
Do not enter as a mixed number or a decimal, use an improper fraction.
Answer: 14/3 miles
Step-by-step explanation: Miles divided by hours gives speed
1/3÷1/6 = 2 mph
Distance= speed × time
2 1/3 is 7/3 7/3×2 = 14/3
Make a table of ordered pairs for the equation.
y = 1/2 x -3 Example: ( 0, 0)
Answer:
1 : -2.52 , -23 : -1.54 , -15 : -0.56 , 0Step-by-step explanation:
by starting to put the value of x as 1 and continuing up to 6 we calculate the value of y and therefore get the given table above
how is 6/4 simplified to 1 1/2. I need a full explantion!! PLEASE HELP!!!!
Answer:
6 goes into 4 one time while still having 2 left over leaving you with 1 and 1/2
Step-by-step explanation:
that's the simplest its gonna get
Answer the area of the trapezoid
Answer:
8700 meters
Step-by-step explanation:
7. John made a pattern with 9 toothpicks in
the 1st figure, 14 in the 2nd figure, 19 in
the 3rd figure, and 24 in the 4th figure.
a) Write an algebraic expression for the
nth term.
b) Use a scatter plot to determine the figure
number of the figure with 94 toothpicks.
c) Check your result in part (b) by
substituting for the variable and
evaluating the algebraic expression.
Please help me with all questions and guide me through!
The area of a parallelogram is the same as the area of a square. The base of the parallelogram is twice the length of its height. The side of the square is 2 less than the height of the parallelogram
Area of a parallelogram: a = base • height
Area of a square: a = (side)2
1. variable h = parallelogram height
2. square area + parallelogram area
3. equation: (h – 2)2 + (2h • h)
The area of a parallelogram is the same as the area of a square. The base of the parallelogram is twice the length of its height. The side of the square is 2 less than the height of the parallelogram
Area of a parallelogram: a = base • height
Area of a square: a = (side)2
1. variable h = parallelogram height
2. square area + parallelogram area
3. equation: (h – 2)2 + (2h • h)
Analyze Jasper’s work. What was his mistake?
A The variable should be the length of the square.
B The areas of the square and parallelogram are equal.
C The area of a square is 4(h – 2).
D The area of a parallelogram is 2h + h.
Answer: The areas of the square and parallelogram are equal (B)
Step-by-step explanation:
I hope this is ok
Answer:
The areas of the square and parallelogram are equal (B)
Step-by-step explanation:
Em uma agência bancária, dois caixas atendem em média seis clientes em 10 minutos. Considere que, nesta agência, todos os caixas trabalham com a mesma eficiência e que a média citada sempre é mantida. Assim, o tempo médio necessário para que cinco caixas atendam 45 clientes é de:
a) 45 minutos;
b) 30 minutos;
c) 20 minutos;
d) 15 minutos;
e) 10 minutos;
Two groups performed an experiment separately by tossing a coin in the air. Group P performed 50 trials and group Q performed 100 trials. Each group recorded the results in the table below:
Group Heads Tails
P 35 15
Q 53 47
What conclusion can be drawn about the number of trials and the probability of the coin landing on heads or tails? (5 points)
Group of answer choices
The experimental probability is closer to the theoretical probability for group Q than group P.
The experimental probability and the theoretical probability for group Q is the same.
The experimental probability and the theoretical probability for group P is the same.
The experimental probability is closer to the theoretical probability for group P than group Q.
Answer:
Are you still in the test? If so I am guessing (not 100% sure) the answer is A.
Step-by-step explanation:
A. The experimental probability is closer to the theoretical probability for group Q than group P.
This may be the answer because, 100 trials is twice the amount of trials in the experiment of p. Theoretically people would think 100 trials is better because more results concludes to an more accurate average. The probability is better for p because the smaller amount of trials means no changes within a project. You can control the variables.
Hopefully this is right!
Round the number 82.365 to the nearest hundredth.
Answer: 82.36
8 = tens place
2 = ones place
.
3 = tenths place
6 = hundredths place
Hope it helps!
The fees for a biochemistry major are $1,728. To major in biochemistry. Toby requires 144 credit hours of coursework. How can he calculate the cost of the fees per credit hour? What is the cost of the fees per credit hour?
Answer:
144x=1728
Step-by-step explanation:
144 credit hours and x will be the cost per hour equals the total 1728. Its 12 dollars an hour
PLEASE HELP ILL GIVE YOU 5 STARS, AND BRAINLIEST !!! (FOR ASSESSMENT)
The plesiosaur’s stomach had 2.25 kilograms of gastroliths. The largest stone was 0.074 meter long, 0.048 meter wide, and 0.022 meter thick.
3. Write the length of the largest stone as a number name and in expanded form.
Answer:
stone called gasthroliths,the largest one is 0.074
Step-by-step explanation:
Answer:
the person above me is correct
Step-by-step explanation:
the person above meh is correct
Which expression can be used to find 80% of 120?
A.(0.8) (24)
B.(0.2) (120)
C.(0.8) (120)
D.(0.2) (24)
PLEASE HELP I'M BEGGING MY TEST IS TIMED
Answer:
C.(0.8) (120)
Step-by-step explanation:
0.8 = 80%
of means multiply, therefore, 0.8 x 120 equals 80% of 120.
Answer:
C. (.8)(120)
Step-by-step explanation:
that is how you find percent of a number
