please help me with maths. it's a standard form topic
The diameter of a bacteria species A is 1 micrometre long while bacteria B is 1 x 10^-3 the size of bacteria species A.
a) What is the diameter of bacteria species B in metres?
b) Based on your answer in (a), is the value obtained less than, greater than or equal to 1 nanometre?
Answer:
Bacteria A has diameter size of 1 micrometer = 1 × 10⁻⁶ m
a) B is 1× 10⁻³ size of A:
1 × 10⁻⁶ * 1 × 10⁻³ = 1 × 10⁻⁹ mb) 1 nanometer = 1 × 10⁻⁹ m
And bacteria B diameter size is equal to 1 nanometerSunday at noon, the temperature was 5 degrees below zero. Wednesday at noon, the temperature was 7 degrees above zero. Which inequality compares the two integers for this situation correctly?
Answer:
- 5° < 0 < 7°
Step-by-step explanation:
Given that:
Sunday at noon :
Temperature = 5° below Zero
Wednesday at noon
Temperature = 7° above Zero
Temperature on Sunday noon < 0 < temperature on Wednesday noon
- 5° < 0 < 7°
A school offered its students an optional field trip. If 15 or fewer students went on the field trip, the charge for each student would be $11.50. If more than 15 students chose to go on the field trip, the charge for each student would be $10.25. 18 students opted to go on the tour, but each pre-paid $11,50. The students agreed to put the extra amount toward dinner on the trip. How much total money will be put toward dinner on the trip?
what makes 135 in the 9 times table
Answer:
The answer is 15
Step-by-step explanation:
135÷9=15
Answer:
9x15
Step-by-step explanation:
Need help with a word problem! Tysm for your assistance :)
Answer:
C
Step-by-step explanation:
Answer:
option c
hope helps you
have a nice day
Change 7.25 a.m. to 24 hour clock time.
Use a colon : to separate hours and minutes.
Answer:
the answer is: 07:25 a.m.
I’m very bad at slope sorry guysss!!!!!
Answer:
-4/3
Step-by-step explanation:
Dot goes down 4 (negative) and then 3 to the right (positive)
rise over run ---> -4/3!
Answer:
omg.. what is this.. I'm sorry I can't help u :)
Here are the diameters of four coins. A dime rolls 41.8 cm. How many rotations did it make?
Will give brainliest,
Answer:
i believe the answer is 10.5
Step-by-step explanation:
dime = 3.14 (1.8) =5.62 cm
Since the coin rolled about 10.5 cm in 4 rotations, it means that the circumference of the coin (x) multiplied by 5 is equal to the distance rolled.
4x=41.8
x =41.8/4 =10.5cm
good luck :)
i hope this helps
**please let me know if this is incorrect**
have a nice day!
Which one is the correct answer?
Answer:
200
Step-by-step explanation:
Volume is the quantity of three-dimensional space enclosed by a closed surface, for example, the space that a substance (solid, liquid, gas, or plasma) or shape occupies or contains. Volume is often quantified numerically using the SI derived unit, the cubic meter. Plz mark me brainliest!
Answer:
200 cm^2
Step-by-step explanation:
For a rectangular prism, V = lwh
V = (10 cm)(4 cm)(5 cm) = 200 cm^2
can someone help me understand this question better
Answer:
do you mind zooming in more
Step-by-step explanation:
Find the measures of the angles.
Angle 1
Angle 2
Angle 3
61
90
29
27
Answer:
a1=90
a2=27
a3=61
a4=29
Can someone help with this
Vertical angles meet at a point of intersection and are equal. The value of x from the shown figure is 9
Vertical anglesVertical angles meet at a point of intersection and are equal.
From the figure given, the angles are vertical angles. Hence;
7x + 3 = 10x - 24
Collect like terms
7x - 10x = -24- 3
-3x = -27
x = 9
Hence the value of x from the shown figure is 9
Learn more on vertical angles here: https://brainly.com/question/14362353
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Savannah had 400 chocolate chips. She saved x chips for a garnish, and mixed the rest of the chocolate chips evenly into 3 pans of brownies.
How many chocolate chips were in each pan of brownies?
Answer:
( 400-x)/3
Step-by-step explanation:
Total chocolate chips Savannah had = 400
Number of chocolate chips she saved for garnishing =x
Number of chocolate chips remain = 400-x
Number of brownie pans = 3
Chocolate chips were spread evenly in 3 pans,
Chocolate chips were in each pan of brownies =( 400-x)/3
The temperature, in degrees Fahrenheit (°F), decreased at a constant rate from
0°F to -35 °F in 5 hours.By how many degrees did the temperature decrease per
hours
Answer:
-7
Step-by-step explanation:
The temperature dropped 7 degrees per hour
You have 3 dogs and they are playful. You decide that dogs are playful.
What type of reasoning is this?
•inductive
•deductive
Answer:
inductive
Step-by-step explanation:
12. AABC is a right triangle. If AB = 3 and AC = 7, find BC. Leave your answer in simplest radical form.
A 2 square root 3
B 4 square root 3
C square root 58
D 2 square root 13
Answer:
b
Step-by-step explanation:
You multiply from left to right
How do I find the area of this?
Answer:
Area of the given right triangle = 24 square units.
Step-by-step explanation:
Given triangle in the picture is a right triangle.
Area of a right triangle is given by,
Area = [tex]\frac{1}{2}(\text{Base})(\text{Height})[/tex]
Height of the given triangle = 8 unit
Base of the given triangle = 6 unit
Area of the triangle = [tex]\frac{1}{2}(6)(8)[/tex]
= 24 square units
Therefore, area of the given right triangle is 24 square units.
The following data points represent the number of chicken nuggets on each family member's plate.
1,3,0, 6, ?
If the mean of the data set is 3 chicken nuggets, find the missing number of chicken nuggets.
nuggets
Answer:
The missing number of chicken nuggets is 5.
Step-by-step explanation:
To find the mean of this data set, we must add every number together, then divide the sum by how many numbers are present.
Like this,
1 + 3 + 0 + 6 = 10
10 / 4 = 2.5
There are 4 present numbers in this data set, and one is missing.
Since the only number divided by 5 that would give you a quotient of 3 is 15, the missing number is 5.
Because,
1 + 3 + 0 + 6 + 5 = 15
15 / 5 = 3
Therefore, 5 is the missing number of the data set.
The question is How long did it take each time 18 liters of water were drained?
Plz help me and if you don’t know the answer plz don’t comment thank you
Question 2 (1 point)
The function f(x) = 0.5x + 3 is used to estimate the number of pounds of potatoes a caterer plans to make depending on the number of
people being served, X. The mathematical domain for the function is the set of real numbers.
Which statement describes the limitation for the reasonable domain compared to the mathematical domain?
Options:
The reasonable domain contains only positive real numbers.
The reasonable domain contains only positive whole numbers.
The reasonable domain contains only real numbers greater than 3.
The reasonable domain contains only rational numbers greater than 3.
Answer:
(b) The reasonable domain contains only positive whole numbers.
Step-by-step explanation:
Given
[tex]f(x) = 0.5x + 3[/tex]
Required
True statement about the limitation of the domain
Since the domain (x) represents people, then it must be a positive whole numbers
This eliminates options (a) and (c)
The range of the function is not given. So, we can assume that any number of people can be present.
This eliminates option (d).
Hence: (b) answers the question
8. Kai bought 50 ride tickets for the amusement park. After 2 hours, he had used up 18 tickets.
(a) What is the unit rate, in tickets per hour,
that Kai is using his tickets?
(b) If Kai uses tickets at this rate the entire
time he is at the park, how many does
he still have after 5 hours?
Help me please, I've been stuck for a hot minute
Answer:
b. 5z-10 = 5(z-2) c. c-2c^2= c(1-2c) d. r+r+r+r= r(1+1+1+1)= 4r e. 2x-(1/2) = (1/2)(4x-1)
Explanation:
you just need to find a common factor that you can divide out of each term. ex. with the 5z-10 both 5z and 10 are divisible by 5, so you can factor that out. to check the answers just multiply it. if you still don't get it, look up "factoring binomials"
Miguel is buying carpeting for his bedroom. The dimensions of his bedroom are 12 ⅓ inches wide and
9 ¼ inches long. How many square feet of carpeting does Miguel need to cover his bedroom floor?
Answer:
Miguel needs 1,369/9 square inch of carpeting
Step-by-step explanation:
Here, we want to know the size of carpeting needed to cover the floor
What we have to do here is to find the area of the bedroom floor
Mathematically, we have this as the product of the dimensions of the floor;
This will give;
12 1/3 inches * 9 1/4 inches
= 37/3 * 37/3 = 1,369/9 square inches
if 24 is 75% of a number, what is that number?
Answer:
32
Step-by-step explanation:
I have first done the equationthen I tried to prove it down there that's why I have written 75% hope you'll understand.
Which quadratic expression is written in standard form?
a. (x + 3)
b. (x + 4)2
c. -X2 - 5x + 7
d. x2 + 2(x + 3)
Answer:
C.
Step-by-step explanation:
-x^2 - 5x + 7.
What is the volume of the rectangular prism?
6x5x7=210
The Volume of the rectangular prism is 210cm
Which reflection will produce an image of ARST with a
vertex at (2, -3)?
O a reflection of ARST across the x-axis
O a reflection of ARST across the y-axis
O a reflection of ARST across the line y = x
O a reflection of ARST across the line y=-x
Answer: D- a reflection of ^RST across the line y=-x
Step-by-step explanation:
The solution is, O a reflection of RST across the line y=-x, is the reflection which will produce an image of RST with a vertex at (2, -3).
What is reflection?Reflection is a type of transformation that flips a shape in a mirror line (also called a line of reflection) so that each point is the same distance from the mirror line as its reflected point.
here, we have,
from the given figure,
we get,
Triangle RST has,
vertex R ( -1,3)
vertex S ( 3, -2)
vertex t (1, -4)
now we know that,
the rule of a reflection across the line y=-x,
(x, y) ⇒ (-x, -y)
so, we get, here,
vertex S ( 3, -2) ⇒ vertex at (2, -3)
so, there is O a reflection of RST across the line y=-x.
To learn more on reflection click:
https://brainly.com/question/29003769
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Peter collects antique marbles. He has these two boxes full of marbles. Which box has the larger volume? How much larger is it?
Answer:
The one with marbles should have a larger volume because the box must be larger also.
Step-by-step explanation:
Pic from the problem
Answer:
53.2
Step-by-step explanation:
Im sorry if im wrong
Abigail wants to ride her bicycle 37 miles this week. She has already ridden 17 miles.
If she rides for 5 more days, what is the average number of miles she would have to
ride each day to meet her goal?
Answer:
20 (i think)
Step-by-step explanation:
subtraction
