f(x) = 3x-9/ 4
inverse practice,
pre calculus
Melanie’s grandfather gave her$5 on her first birthday,$10 on her second birthday $15 on her third birthday, and so on.If this pattern continue, how much will Melanie's grandfather give her on her 12th birthday?
Answer:
$60
Step-by-step explanation:
since every year, she receives $5 more than the last, then on her twelfth birthday, you'll have to multiply 5 by 12 to get 60.
Two angles are supplementary. One angle measures 52 degrees more than the other angle. Find the measure of the LARGER angle.
[tex]\begin{array}{l}\text{We\ have\ } \alpha +\beta =180\ \text{and} \ \beta =\alpha +52\text{\ then}\\\\\alpha +\alpha +52=180\\\\\Longrightarrow 2\alpha =180-52\\\\\Longrightarrow \alpha =\frac{128}{2} =64\\\\\therefore \beta =64+52=116\\\\\therefore \boxed{\text{The\ larger\ angle\ is\ 116\ degrees}}\end{array}[/tex]
What pair of numbers have a greatest common factor of 7?
Answer:
answers are:
7 and 14
The factors of 7 is: 1, 7
The factors of 14 is: 1, 2, 7, 14
28 and 7
Factors of 28: 1, 2, 4, 7, 14, 28
Facotrs of 7: 1, 7
Step-by-step explanation:
others:
21, 3 is GCF is 3
The factors of 3 are: 1, 3
The factors of 21 are: 1, 3, 7, 21
7, 1 is GCF is 1
The factors of 1 are: 1
The factors of 7 are: 1, 7
I’ll mark u as brainliest!! solve these two equations n show ya work !!
Hope it helps... Mark me brainliest
An athlete runs two miles in 13.5 minutes. How many minutes is this per mile?
Answer:
6.75 minutes / mile.
Step-by-step explanation:
Time: 13.5 minutes
distance: 2 miles
rate: ?
You want the units to be minutes / mile. That's not the usual units for a rate. You have to be careful how you set this up.
13.5 minutes
2 miles
13.5 /2 = 6.75 minutes / mile = 6 minutes 45 seconds / mile
If F=kmM/r^2, then m=
Answer:
F= knM/ r^, m=?
M= k/M
because question have asked what is the values of M so It will go to keftbhand side to find the values
For a ride on a rental scooter, Chau paid an $8 fee to start the scooter plus 6 cents per minute of the ride. The total bill for Chau's ride was S12.14. For how
many minutes did Chau ride the scooter?
Chau rode the scooter for 69 minutes.
Given that :
Initial fee paid = $8
Fee per minute = 6 cents = 6/100 = $0.06
Hence,
Total ride cost = $8 + (fee per minute × number of Minutes)
If total Cost of ride = $12.14
Let number of minutes = m
Hence, we have :
12.14 = 8 + 0.06m
12.14 - 8 = 0.06m
4.14 = 0.06m
m = 4.14 / 0.06
m = 69
Hence, he rode the scooter for 69 minutes
Learn more : https://brainly.com/question/20046547
4 b. An airplane flies with a constant speed
of 760 km/h. How far can it travel in
33 minutes?
Answer: 418 km
Step-by-step explanation:
I would start this question by finding how far it can travel in one minute. To find this you divide 760/km by 60, which would be 12 [tex]\frac{2}{3}[/tex]/minute.
Next to find 33 minutes, you simply multiply 12[tex]\frac{2}{3}[/tex] by 33, which is 418.
Therefore, the airplane can travel 418 km in 33 minutes.
Divide the speed per hour by 60 and then multiply the answer by 33 to get the distance travelled
A pebble fell from a bridge to the water below. The pebble entered the water at a speed of 19.6 m/s. How long did it take the pebble to reach the water from the bridge?
Answer:
2 seconds
Step-by-step explanation:
hope that helps you!!
Find the distance between the pair of points. Round your answer to the nearest tenth if necessary.
Answer:
The distance between the pair of points is 12.0 (to the nearest tenth)
Step-by-step explanation:
The distance between a pair of points in a coordinate system is found by the formula:
d =[tex]\sqrt({x_2-x_1)^2+(y_2-y_1)^2}[/tex]
where, the points are:
[tex](x_1,y_1)\ and\ (x_2,y_2)[/tex]
From the graph,
[tex](x_1,y_1)=(-6,-2)\\(x_2,y_2)=(2,7)[/tex]
Substitute the points into the formula:
[tex]d=\sqrt{(2-(-6)^2+(7-(-2)^2} \\d=\sqrt{(2+6)^2+(7+2)^2} \\d=\sqrt{8^2+9^2} \\d=\sqrt{64+81} \\d=\sqrt{145} \\\d=12.0[/tex]
You throw a basketball up in the air. The basketball's
height, in feet, is given by the function:
h = -16t2 + 30t + 4, where t is
the time in seconds after the ball leaves your hand.
Find the greatest height the ball reaches (use a
calculator).
Answer:
0
Step-by-step explanation:
It is 0 where t is the time in seconds after the ball leaves my hand
Identify the word problem that represents the algebraic expression πr²(3r).
1) the amount of tissue paper needed to cover a tennis ball canister shaped like a cylinder with a radius 3 times its height.
2) the volume of a cylindrical shaped corn silo with a height that is 3 times the radius.
3) the surface area of a round ball shaped like a sphere with a radius of 3 meters.
4) the volume of a jar of salsa in the shape of a right cylinder with a radius that is 3 times its height
Answer:
the volume of a cylindrical-shaped corn silo with a height that is 3 times the radius
Step-by-step explanation:
i took test
Help pls (look at the photo)
Answer:
X² -29 = 7
Step-by-step explanation:
words add up to the expression
Answer:
2x-29=7
Step-by-step explanation:
Can someone help me?
Answer:
Loading..
Step-by-step explanation:
h/5-h(k+j) use h=5, j=3, and k=7
h/5 - h(k + j) => 5/5 - 5(7 + 3)
5/5 - 5(7 + 3)
1 - 5 × 10
1 - 50 = -49
[tex]\text{h}=5 \ \text{and} \ \text{j}=3 \ \text{and} \ \text{k}=7\\\\\frac{\text{h}}{5}-\text{h}(\text{k}+\text{j})=\frac{5}{5}-5\cdot(3+7)=1-5\cdot10=1-50=\boxed{-49}[/tex]
Find the average of the list of numbers.
- 13, – 25, – 24, – 14
Answer:
-19
Step-by-step explanation:
-13-25-24-14
= -76/4
= -19
Simplify the algebraic expression (4b5 - 7) + (12b5 - 1)
Answer:
16b^5 - 8
Step-by-step explanation:
(4b5 - 7) + (12b5 - 1)
4b^5 - 7 + 12b^5 - 1
4b^5 + 12b^5 - 7 - 1
16b^5 - 8
The sides of a triangle are in the ratio of 5:12:13. If it's permiter is 150cm,fine the area of the triangle
Answer:
495cm^2
Step-by-step explanation:
First of all get the total ratio which is (5+12+13)=30 then use it to find the length of each side that is to say
EACH SIDE RESPECTIVELY AS PER THE RATIO
side 1
(5/30) × 150cm = 25cm
base
(12/30) × 150cm = 60cm
side 2
(13/30) × 150cm = 65cm
My triangle will have one side 25cm, side one 65cm and the base 60cm then you are going to use pythagoras theorem to find out the height of the triangle using the formula
a^2 + b^2 = c^2
the height will be 'a', 25cm will be 'b' then inorder to create a right angle we will divide the baseinto two that is to say (60cm / 2= 30cm) therefore the 30cm will be 'c'
In conclusion
HEIGHT
= a^2 + (25cm)^2 = (30cm)^2
= a^2 + (25cm × 25cm) = (30cm × 30cm)
= a^2 + 625cm^2 = 900cm^2
= a^2 = 275cm^2
= √a^2 = √275cm^2
= a = 16.5cm
therefore the height is 16.5cm
AREA
Height = 16.5cm
Total base = 60cm
Area = 1/2 × basearea × height
= 1/2 × 60cm × 16.5cm
= 495cm^2
A math teacher has $900 to buy new calculators. If each calculator costs $90, how many
calculators can the teacher buy?
Answer:
10 calculators
all you have to do is divide 900 by 90
in order to get the answer
when you divide by 90 you get the answer of 10
Step-by-step explanation:
[tex]\qquad \qquad \huge \pink {\sf{☁Answer☁}} \\ \\ [/tex]
[tex]\rule{70mm}{2.2pt}[/tex]
[tex] \large \purple{ \rm{Given→}}[/tex]
Money to buy new calculators →$900Cost of each calculator → $90[tex]\rule{70mm}{2.2pt}[/tex]
[tex] \large \purple{ \rm{To \: find→}}[/tex]
how many calculators math teacher buy ?[tex]\rule{70mm}{2.2pt}[/tex]
[tex] \large \purple{ \rm{Let's \: solve→}}[/tex]
[tex]\ \ \bold{calculators \: teacher \: can \: buy \: } \\ \\ \bold{= 900 \div 90} \\ \\ \bold{ = \frac{900}{90} } \\ \\ \ \bold{ = \cancel \frac{900}{90} } \\ \\ \bold{ = 10 \:calculators}[/tex]
[tex]\purple{\rule{15mm}{2.9pt}} \red{\rule18mm{2.5pt}} \orange{ \rule18mm{2.5pt}}[/tex]
[tex]\sf{\:мѕнαcкεя\: ♪...}[/tex]
Use the set B = {5, 7, 9, 11} to determine n(B).
n(B) = 0
9514 1404 393
Answer:
n(B) = 4
Step-by-step explanation:
There are four (4) elements in set B.
n(B) = 4
Find 6 3/4 − 4 11/12. Write your answer in the simplest form.
A. 1 2/3
B. 1 5/6
C. 2 5/6
D. 3
ANSWER
First of all I turn the fractions back to their improper form that is to say;
6 3/4 - 4 11/12
= 27/4 - 59/12
after that I get the LCM of 12 and 4 which is 12
= (²⁷/⁴ × 12) - (⁵⁹/¹²× 12) /12
= (81 - 59) /12
= 22\12
since the answer is requested for in the simplest form the the difference in form of a mixed fration is 1 10/12 which is reduced to 1 5/6 therefore the answer is 'B'
Is it possible to divide
0 by 27
?
Answer:
No. Dividing by 0 is not rational, no number works.
Order the numbers from least to
greatest.
1.5, 1.27, 1.4, 1.05 , 1.07 , 1.44
Answer:
1.05, 1.07, 1.27, 1.4, 1.44, and 1.5
Step-by-step explanation:
Answer:
1.05, 1.07, 1.27, 1.4, 1.44, 1.5
Step-by-step explanation:
Please help me! I really need it. ...You deposit 1500 every month starting today in an investment account but would withdraw 750 at the end of every 12 month period. interest is 14% compounded monthly. how much would be in the account before and after the last withdrawal?
Answer: multiply 750 and 12
Divide that by the 14%
Step-by-step explanation:
Solve the equation for the specified variable.
W = F(r + A), for
(Answer quickly)
W = F(r + A)
r + A = W/F
r = W/F - A
if a=b=c find the value of each
Answer:
Since we are apparently having a straight line which is equal to 180° therefore a=60° b=60° and c=60°
Step-by-step explanation:
a=b=c it's mean b and c is also a
now
a+ b+c as a+a+a=180or, 3a=180or, a=180÷3 a=60Referring to the figure, find the value of x
Answer:
x + (x-73) + 67 = 180
x + x - 73 +67 = 180
2x - 6 = 180
2x = 180 + 6
x = 186 / 2
x = 93
Step-by-step explanation:
x-73+x+67=180(sum of angles in a triangle )
2x-6=180
2x=180+6=186
x=186/2
x=93
Find the area of this triangle. Round to the nearest tenth. 8m, 62°, 12m.
9514 1404 393
Answer:
42.4 m²
Step-by-step explanation:
The area can be found from the formula ...
Area = 1/2ab·sin(C)
Area = (1/2)(8 m)(12 m)sin(62°) ≈ 42.4 m²
Which of the following is an example of a false negative?
Test results confirm that a woman is pregnant.
Test results indicate that a woman is not pregnant when she is.
Test results confirm that a woman is not pregnant.
Test results indicate that a woman is pregnant when she is not.
Answer:
Test Results indicate that a woman is not pregnant when she is.
Test Results indicate that a woman is pregnant when she is not
