Answer:
Part A
Scale factor
= 1 : 175
Part B
52.5 mm
Part C
99.4%
Step-by-step explanation:
Justin is working with a microscope that magnifies objects to 175 times their actual size.
Part A
Enter a number in each box to determine the scale factor for the microscope.
= 1 : 175
Part B
The diameter of an amoeba cell is 0.30 millimeter. How big will the cell appear to Justin under the microscope?
Scale factor =
1 : 175
Diameter of the Amoeba cell = 0.3mm
1mm = 175 mm
0.3mm = x
Cross Multiply
x = 0.3 × 175
x = 52.5 mm
Part C
What is the percent increase of the area of the amoeba cell under the microscope?
Increase = 52.5 mm - 0.3mm
= 52.2 mm
Percent increase
= 52.2/52.5 × 100
= 99.4%
Find m∠RSQ
please and ty
Answer:
m∠RSQ = 19°
Step-by-step explanation:
From the picture attached,
RT is the diameter of the a circle.
Angle subtended at the circumference by the diameter of a circle = 90°
Therefore, m∠RST = 90°
Since, m∠RSQ + m∠QST = m∠RST
m∠RSQ + 71° = 90°
m∠RSQ = 90° - 71°
= 19°
Therefore, measure of angle RSQ is 19°.
Expand 2(c + 4).
Please help me
Answer:
2c+8
Step-by-step explanation:
this is because we are using 2 to open up the brackets. You will multiply c by 2 and 4 by 2.
Find the area of the isosceles triangle.
13 cm is the side length
10 cm is the base length
what is the hight?
Answer:
23
Step-by-step explanation:
because 10+13 well hope that helps
9.8-7.5 how do I solve for this
Answer:
Its simple the anwser is 2.3
Step-by-step explanation:
9.8
-7.5=
2.3
Melanie is buying soft drink cans for the work fridge. In the shopping catalogue, she sees a 10 can
pack for $6.00 and a 24 can pack for $15.96. Which is the cheapest way for Melanie to buy the soft
drink? Show all working
y-intercept: (___,___)
r-intercept: (___,___)
Answer:
y= 0,4 x=0,3
Step-by-step explanation:
I need help! ASAP please!
Answer:
60 f+80=287
Step-by-step explanation:
Here is a number machine
A salesperson sold a car for $15,590 and their commission is $623.60. What percentage of the sale price is their commission?
Answer:
4%
Step-by-step explanation:
623.60 deivided by 15,590= commistion
Type the missing number in this sequence:
13, 5, , -11, -19
Convert decimals to fractions
.37
2.4
.33
Please help
Answer:
1. 37/100
2. 2 2/5 or 12/5
3. 33/100
Step-by-step explanation:
Answer: 37/100.
2 2/5.
33/100
Step-by-step explanation:
I recommend using symbolab.com for further steps and calculator
HELP WORTH 50 POINTS
giving brainlest to whoever does it right!!
The approximate populations of Connecticut and Vermont (as of 2019) are
listed below:
Connecticut: 3.57 x 10^6
Vermont: 6.24 x 10^5
How many times greater was the population of Connecticut than the
population of Vermont? Write your answer in standard notation, rounding to
the nearest tenth.
Answer: 1071.0 prep
Step-by-step explanation:
Can someone please help me out with this problem
Answer:
15w+5
Step-by-step explanation:
Any like terms can be combined to simplify.
2w+13w=15w
4+1=5
So, 2w+4+13w+1= 15w+5
Answer:
W = -1/3
Step-by-step explanation:
15W + 5= 0
15W = -5
W = -5/15
W = -1/3
Doing some homework right now :) Need help on this problem
Answer:
both have 5
Step-by-step explanation:
10 divided by 2 equals 5
What should be added to -7/3 to get 3/7
21/58
58/21
47/21
50/21
Answer:
58/21 is added to -7/3 to get 3/7
Which trigonometric ratio would you use to solve for the variable??
Answer:
Sin angle = opp/hyp
Cos angle = Adj/ hyp
Tan angle = opp/adj
The opp = the base of the triangle
The hyp = w
The adj = 125
Btw....
SOH CAH TOA
SOH = Sin ( Opposite ÷ Hypotenuse)
CAH = Cos ( Adjacent ÷ Hypotenuse)
TOA = Tan ( Opposite ÷ Adjacent)
Hope this helped!
Have a supercalifragilisticexpialidocious day!
I will give brainlist please someone help!!!
Answer:
x = 6
Step-by-step explanation:
Alternate angles are congruent.
7x - 9 = 3x + 15 {Subtract 3x form both sides}
7x - 3x -9 = 15
4x - 9=15 {Add 9 to both sides}
4x = 15+9
4x = 24
x = 24/4
x = 6
PLS HELP ASAP!
1/3+2/3
Answer is 1
Step-by-step explanation:
Add
1/3 + 2/3 = 3/3
Simplify
3/3 =1
lol hope i could help even if its a lil:)
Combine the like terms to create an equivalent expression. k + k + k *
and i am in six grade plz help .
Answer:
Step-by-step explanation:
Ok, so pretend each k has a 1 in front of it. so 1k+1k+1k= 3k. If you need a different equation, you can do 2k+1k=3k or something like that. :)
The area in square feet of a rectangular garden can be expressed as the product of the garden’s length and width, or A(x) = 3x2 +13x +14. If the width of the garden is (x + 2) feet, what is the length of the garden?
Answer:
3x+7
Step-by-step explanation:
Use long division or synthetic division. (3x^2+13x+14)/(x+2)
The length of the rectangular garden is 3x + 7
The given expression:
[tex]A = 3x^2 + 13x + 14[/tex]
the width of the garden = x + 2
let the length of the garden = y
To find:
the length of the gardenThe area of the rectangular garden is calculated as;
[tex]A = y(x + 2) = 3x^2 + 13x + 14\\\\y(x + 2) = 3x^2 + 13x + 14\\\\y = \frac{3x^2 + 13x + 14}{x + 2}[/tex]
Using long division method:
3x + 7
------------------------------
x + 2 √ 3x² + 13x + 14
- (3x² + 6x)
-------------------------
7x + 14
- (7x + 14)
-------------------------------
0
Thus, the length of the rectangular garden, y = 3x + 7
Learn more here: https://brainly.com/question/12932084
Solve 3(x + 2) >x
Please
Answer:
x > −3
Step-by-step explanation:
Let's solve your inequality step-by-step.
3(x + 2) > x
Step 1: Simplify both sides of the inequality.
3x + 6 > x
Step 2: Subtract x from both sides.
3x + 6 − x > x − x
2x + 6 > 0
Step 3: Subtract 6 from both sides.
2x + 6 − 6 > 0 − 6
2x > −6
Step 4: Divide both sides by 2.
2x / 2 > −6 / 2
x > −3
Answer:
x > −3
Hope this helps :)
Given the formula
an = 3 * 2^n-1
What is the 9th term?
Answer:
a9=3×2^9-1
a9=3×2^8
a9=3×256
a9=768
What is the volume of the tent?
Find the slope of the following graphs.
A. 1 / 2
B. 2
C. -2
D. - 1 / 2
Answer:
c, -2
Step-by-step explanation:
Solve the simultaneous equations
2x + 4y = 22
2x + 2y = 15
Answer:
1. x= 11+-27
2.x = 7.5 + -1y
Step-by-step explanation:
1. Move all terms containing x to the left, all other terms to the right.
Add '-4y' to each side of the equation.
2x + 4y + -4y = 22 + -4y
Combine like terms: 4y + -4y = 0
2x + 0 = 22 + -4y
2x = 22 + -4y
Divide each side by '2'.
x = 11 + -2y
Simplifying
x = 11 + -2y
2.Move all terms containing x to the left, all other terms to the right.
Add '-2y' to each side of the equation.
2x + 2y + -2y = 15 + -2y
Combine like terms: 2y + -2y = 0
2x + 0 = 15 + -2y
2x = 15 + -2y
Divide each side by '2'.
x = 7.5 + -1y
Simplifying
x = 7.5 + -1y
Solve the equation 3(x−4)=12x .
Answer:
x = -4 / 3
Step-by-step explanation:
Answe 4/3
Step-by-step explanation:
2(8 +0.5) + 2(5 +1.5)
Answer:
30
Step-by-step explanation:
THE THREE SIDES OF A TRIANGULAR LOT
ARE MEASURED TO BE APPROXIMATELY 100.52
FT, 15.321 FT AND 143.250 FT LONG. FIND THE
APPROXIMATE PERIMETER OF THE LOT
Answer:
259.09 feet
Step-by-step explanation:
Given that,
The three sides of a triangular lot are measured to be 100.52 ft, 15.321 ft and 143.250 ft.
We need to find the perimeter of the lot.
We know that,
Perimeter = sum of all sides
P = 100.52 + 15.321 + 143.250
P = 259.09 feet
So, the required perimeter of the lot is 259.09 feet.
How do we define argument? What is the basic structure of an argument?
How do we define argument?
A.
An argument is a reasoned or thoughtful process.
B.
An argument is a statement that is untrue.
C.
An argument is a method or principle of reasoning.
D.
An argument is a statement that is true.
Please help will give 10 points
We defined an argument as a reasoned or thoughtful process. The correct option is A.
What is an argument?An argument is a statement or set of claims known as premises that are designed to assess the degree of truth or acceptability of another statement known as the conclusion. Arguments may be analyzed from three different perspectives: logical, dialectical, and rhetorical.
Since the act or process of arguing, reasoning, or discussing is known as an argument. Therefore, we defined an argument as a reasoned or thoughtful process.
An argument is made up of three parts: the conclusion, the premises, and the assumptions.
THE ConclusionThe conclusion (or theses) is the point of the argument's major idea—what the author is attempting to show.
THE LOCATIONThe premises are the reasoning or evidence provided by the author to justify the conclusion.
THE ASSURANCESThe assumptions support the conclusion, but unlike the premises, they are unsaid and so invisible.
They connect the premises and conclusions.
Learn more about Arguments here:
https://brainly.com/question/15147636
#SPJ2
C 17. At high school A, the mean score of 50 students on a science test is 75.
At high school B, the mean score of 40 students on the same test is 80.
What is the mean score of the 90 students?
Answer:
Mean score of 90 students = 77.2
Step-by-step explanation:
Mean score of 50 students from school A = 75
Mean score of 40 students from school B = 80
We need to find mean score of the 90 students?
First we will find sum of scores of students from school A
We know that: [tex]Average=\frac{Sum\:of\:Terms}{Number\:of\:terms}[/tex]
We have Average = 75, Number of terms = 50, We need to find Sum of terms (scores)
[tex]Average=\frac{Sum\:of\:Terms}{Number\:of\:terms}\\75=\frac{Sum\:of\:Terms}{50}\\Sum\:of\:Terms= 75\times 50\\Sum\:of\:Terms=3750[/tex]
So, Sum of scores for School A = 3750
Now, we will find sum of scores of students from school B
We know that: [tex]Average=\frac{Sum\:of\:Terms}{Number\:of\:terms}[/tex]
We have Average = 80, Number of terms = 40, We need to find Sum of terms (scores)
[tex]Average=\frac{Sum\:of\:Terms}{Number\:of\:terms}\\80=\frac{Sum\:of\:Terms}{40}\\Sum\:of\:Terms= 80\times 40\\Sum\:of\:Terms=3200[/tex]
So, Sum of scores for School B = 3200
Now, We will find mean score of the 90 students?
Mean score of 90 students will be:
[tex]Average=\frac{Sum\:of\:Terms}{Number\:of\:terms}\\Average=\frac{3750+3200}{90}\\Average=\frac{6950}{90}\\Average = 77.2[/tex]
So, mean score of 90 students = 77.2
