Answer:
C: Step 3 is incorrect
Step-by-step explanation:
Answer:
step 3 is wrong
Step-by-step explanation:
Ronna answered 18 of the 20 questions on her second math test correctly. On the first test, she had answered only 15 of 20 questions correctly. What was the percent increase in her score from her first test to the second test? A. 15% B. 35% C. 75% D. 90
Answer:
A: 15%
Step-by-step explanation:
First test:
15 ÷ 20 = 0.75
0.75 * 100 = 75%
Second Test:
18 ÷ 20 = 0.9
0.9 * 100 = 90%
90% - 75% = 15%
plzzzzzzzzzz simplifiy a^2 ⋅ a^m
Answer:
a^(2+m)
Step-by-step explanation:
We can simply add the exponents together because they have the same base which will give us a^(2 + m).
Answer:
a^[2+m]
Step-by-step explanation:
When multiplying two polynomials with the same base but different exponents, we add the exponents because
a^m*a^n
= a^m+n
So,
a^2*a^m
= a^2+m
Since it can't be solved anymore this is the simplest form
Which graph represents the function f(x) = (1∕4)x – 1?
Answer:
Where's the graph?
Step-by-step explanation:
Answer:
Step-by-step explanation:
math way
Jillian calculates that see will take 95 minutes to run 7 miles. She runs the distance in 80 minutes. What is Jillian’s percent error?
Answer:
Kawaii, the problem is the comparison with the calculated time for Jillian and the actual time for Jillian to run the 7 miles.
%error=(calculated value - experiemental value)/calculated * 100%
%error=(95-80)/95*100%=15/95 *100% = 15.79 ≈ 16% error
Note: 16% error is the approximate error because the numbers have 2 significant figures stated in the problem.
Step-by-step explanation:
Help me with thisss please its timed!!! i need help
(2x+10)°+(4x+20)°= 180° ( linear pair)
2x+10+4x+20=180
=6x+30=180 6x=180-30
6x=150
x= 150/6= 25
x=25
2x+10=50+10=60
4x+20=100+20=120
we can check if we did correct if the angles add up to 180 as they are a linear pair
Write in simplest form:
4 1/3 : 7
Answer:
13 : 21
Step-by-step explanation:
4 1/3 : 7
13/3 : 7
3*13/3 : 3*7
13 : 21
In approximately two to three sentences, explain how you would convert
14/ 25
to a percent
Is the following number rational or irrational?
-0.323232323232
The center of a circle and a point on the circle are given. Write the equation of the circle in standard form.
center: (3,2), point on the circle: (-2,-3)
Which is the correct equation?
A. (x-3)2 + (y + 2)2 = 52
B. x2 + y2= 50
C. (x - 2)2 + (y - 3)2 = 50
D.(x - 3)2 + (x - 2)2 = = 50
Please show you work this out! Thank you
Answer:
A.Because ,center is (3,2)and point is (-2-3) .
and answer is (x-3)2+(y+2)2=52.
A small staircase is made so that the horizontal piece of each step 10 inches long and 25 inches wide. Each step is 5 inches above the previous one. What is the surface area of this staircase?
Answer:
1125 in²
Step-by-step explanatio1D
Assume that the staircase is three steps high, as in the diagram.
Each tread has a surface area of
10 in × 25 in = 250 in²
Each riser has a surface area of
5 in × 25 in = 125 in²
There are three treads and three risers, so the total surface area is
3 × 250 in² + 3 × 125 in² = 750 in² + 375 in² = 1125 in²
The surface area of the small staircase which is made such that the horizontal piece of each step 10 inches long and 25 inches wide is 1125 in².
What is surface area?Surface area of any solid or the 3 dimensional body is the area of each faces by which the solid body is enclosed. Surface area of a cuboid is the sum of total area of each face.
The image of the staircase is shown below. This small staircase is made so that the horizontal piece of each step 10 inches long and 25 inches wide.
Thus, the surface area of the trade of stair case is,
[tex]A_{t}=10\times25\\A_{t}=250\rm\;in^2[/tex]
Each step is 5 inches above the previous one. Thus, the surface area of the riser of stair case is,
[tex]A_{r}=25\times5\\A_{r}=125\rm\;in^2[/tex]
Total surface area of one step is,
[tex]A_{s}=3(A_{t}+A_{r})A_{s}=3(250+125)\\A_{s}=3(375)\\A_{s}=1125\rm\;in^2[/tex]
Hence, the surface area of the small staircase which is made such that the horizontal piece of each step 10 inches long and 25 inches wide is 1125 in².
Learn more about the surface area here:
https://brainly.com/question/20771646
Which geometry includes a triangle that has angle measures of 45°, 61°, and 70°? Euclidean geometry hyperbolic geometry elliptical geometry spherical geometry
Answer: Hyperbolic geometry
Step-by-step explanation:
Hyperbolic triangle is a non - Euclidean triangle in which the sum of the angles of the triangle is not up to 180 degrees. That is, less than 180 degree.
Euclidean geometry is the normal geometry that is being taught in school in which the sum of the angles of its triangle equals 180 degrees
While spherical geometry is a non euclidean geometry with sum of the angles of its triangle greater than 180 degrees.
Therefore, the triangle that has angle measures of 45°, 61°, and 70° is a non - Euclidean geometry which is hyperbolic geometry.
Answer:
hyperbolic geometry
Step-by-step explanation:
What are the opposites of 9, −3.6, 2.25, and 9 1 2 ? Enter the answers in respective order, each separated by comma.
Answer:
The opposite of 9 is -9, -3.6 is 3.6, 2.25 is -2.25,
Step-by-step explanation:
Write the following as an inequality.
- 2 is less than w, and 6 is greater than or equal to w
Use w only once in your inequality.
Answer:
-2 < w ≤ 6
Step-by-step explanation:
The inequalities you're asked to combine are ...
-2 < w
6 ≥ w
Turn one of these around so the "arrows" point in the same direction. (My preference is that they point to the left.) Now you have ...
-2 < w
w ≤ 6
You combine these by putting w in the middle:
-2 < w ≤ 6
_____
Alternate solution
I like the above solution because it puts the components of the expression in the same (left-right) order as they appear on a number line. However, both inequalities can be turned around to get ...
6 ≥ w > -2
10. Rhonda Harmon's credit card statement showed an $839.78 balance. Since then, she has made a $110.50 payment
and purchases totaling $143.75. What is Rhonda's new balance?
NEED HELP PLSS
Answer:
585.53 new balance
$839.78 - 110.50 - 143.75
Answer: 585.53
Step-by-step explanation:
839.78 - 110.50 = 729.28
729.28 - 143.75 = 585.53
Solve 8x+c= k for x.
O A. x = 8(k+c)
K-C
O B. x-
O C. *- **
K+C
8
O D. x = B(k-c)
SUBMIT
Helpp plzzzz
Answer:
x = (k-c)/8
Step-by-step explanation:
8x+c= k
Subtract c from each side
8x+c-c= k-c
8x = k-c
Divide each side by 8
8x/8 = (k-c)/8
x = (k-c)/8
Please; Ignore the background.
Using the information given below, determine the relationship between the two triangles.
Answer:
x= -3 1/2x= -3 1/2
Step-by-step explanation:
Answer:
x= -3 1/2x= -3 1/2
Step-by-step explanation:
A calendar shop has 5,624 calendars. Each rack can hold 38 calendars. How many racks does the store need to use?
Answer:
You would need 148 racks
Step-by-step explanation:
5,624 divided by 38 = 148
a²=m. Find a⁶
pls help
Answer:
M^3
Step-by-step explanation:
If the two triangles shown are similar (i.e. their
sides are proportional), what is the length of the
side labeled x?
Answer:
12 cm
Step-by-step explanation:
x/36=5/15
x=36/3
x=12 cm
Answer:
x = 12
Step-by-step explanation:
As you can see here, the sides are proportional to each other. You can use ratios in order to find x.
15:5 = 36:x
need help asap. Graph the line: y= -2x +3 use {-1,0,1,2} for x.
(-1, 5)
(0, 3)
(1, 1)
(2, -1)
1. What is the median of the data below? 2. What is the value at Q1 (or the lower quartile)?
Answer:
the median is the middle line
Step-by-step explanation:
Answer:
fkjshfkjdhfjksdhfjkshdfkjshd
Step-by-step explanation:
I need help plz hellpppp!!!!
Answer:
375(I think)
Step-by-step explanation:
750/2= 375
Answer:
304.
i believe i haven't done that type of problem in a while
Step-by-step explanation:
Select the ordered pairs that satisfy the equation y=1/5x.
Check all that apply.
Answer:
Step-by-step explanation:
C 2=1/5(10) 2=2
E -1=1/5(-5) -1=-1
≈Delilah≈Put the steps in the correct order to show how a budget is made.
First Step
T1 Total up spending
11 Reduce expenses in flexible categories to save or increase savings
Ti Calculate income
Ti Determine if spending is below income
11 Categorize expenses
Final Step
Answer:
The correct answer is: Calculate income, Total up spending, Categorize expenses, Determine if spending is below income, and Reduce expenses in flexible categories to save or increase savings. When making a budget, it's first necessary to figure out how much money comes in and goes out, and then to compare expenses to income to make cuts if necessary.
Step-by-step explanation:
Dose anyone know what is coefficient too -7yz2?
Answer:
-7
Step-by-step explanation:
Coefficients are the numbers that multiply the following variables, so in the case of -7yz^2, the coefficient would have to be -7.
Can someone help me for brainllest ITS TIMED AND IM FREAKING OUT
Answer:
1.
If two angles are supplementary, their sum is 180 degrees.
Check: 10 + 170 = 180
=> Maryam's claim is correct
If two angles are complementary, their sum is 90 degrees.
Check: 81 + 9 = 90
=> Ailia's claim is correct
2.
As the definition:
Vertical angles have sides that form two pairs of opposite rays.
Adjacent angles have a common side and don't overlap.
=> As provided pair of angles, they are adjacent pair of angles.
=> Ahmed's statement is wrong, Saalem's statement is correct.
Hope this helps!
:)
which of the following relations is a function ?
Answer:
Step-by-step explanation:
The relation that is a function is c
First to answer gets brainliest Find the height of a Square Pyramid whose Volume = 873.13m3 and side length = 12.6m Round to the nearest tenth.
Answer:
[tex]16.5m[/tex]
Step-by-step explanation:
[tex]h=3\frac{V}{a^2} \\=3*\frac{873.13}{12.6}\\ =16.5m[/tex]
the answer is not d
Answer:
Answer c: 1000
Step-by-step explanation:
Set f(x) = 2 log x - 6 = 0 as a first step in finding the zero or zeros.
2 log x - 6 = 0 becomes log x - 3 = 0 after dividing all three terms by 2.
Then log x = 3, and because "log x" has base 10, the value of x is 10^3, or 1000.
You change oil every 6000 miles and drive 2000
miles a month; how many times a year do you
change oil? (What do the 2 facts help you learn?)
Answer:
4 times a month
Step-by-step explanation:
hope this helps:))