What is the solution set for 9x^2-25 = 0?
Answer:
x=1.666667,−1.666667
Step-by-step explanation:
9x^2−25=0
Step 1: Add 25 to both sides.
9x^2−25+25=0+25
9x^2=25
Step 2: Divide both sides by 9.
9x^2/9=259
x^2=25/9
Step 3: Take square root.
x=±25/9
x=1.666667,−1.666667
Which equation can be used to find the solution of (1/4)^y+1=64?
−y−1=3
y + 1 = 3
−y+1=3
y−1=3
Answer:
−y−1=3
Step-by-step explanation:
Which equation can be used to find the solution of (1/4)^y+1=64?
This can be solved by power of indices
(1/4)^(y+1)=64
(4^-1)^(y + 1)= 4^3
Note
(x^a)^b = x^ab
Hence:
4^(-1)(y + 1)= 4^3
4^-y - 1 = 4^3
Divide both sides by 4
−y−1=3
Hence, the equation that can be used to find the solution of (1/4)^y+1=64 is
−y−1=3
Answer:
-y-1=3
Step-by-step explanation:
took the test and got it correct
A producer received rupees 10000 when the price of a commodity was rupees 100 per unit. The receipts increased to rupees 15000 when price increased by rupees 20.Calculate the elasticity of supply?
Answer:
Price Elasticity of Supply = 1.25
Step-by-step explanation:
Price Quantity Total Revenue ( P x Q)
100 10000/100 = 100 10000
120 15000/120 = 125 15000
Price Elasticity of supply is change in quantity supplied, due to change in price. Formula : (dQ / dP) x (P / Q)
(125 - 100) / (120 - 100) x (100/100)
= 25/20 = 1.25
Your friend said that in order to determine the constant of proportionality, the independent variable (x) should be divided by the dependent variable (y). Do you agree? Explain.
what is 22/55 in simplest form
Answer:
2/5
Step-by-step explanation:
Answer:
2/5
Step-by-step explanation:
because the highest number you can divide them both by is 11
Write an equation for the parabola: virtex=0,0, directrix= y= -1
Answer:
So EASY
Step-by-step explanation:
solve 2x-3< 2
please answer it fast
Answer:
x<5/2
Step-by-step explanation:
We have
2x−3<2
Add 3 to both sides.
2x−3 +3 <2 +3
which makes
2x<5
Divide both sides by 2.
2x/2 < 5/2
x<5/2
Denise gets paid $600 an hour plus $430 commission on her sales. If her paycheck this week was $700, how many hours did she work?
can someone help me
Answer:
EFD
Step-by-step explanation:
Just follow the marks on the triangle.
Answer:
Pretty sure it's EFD or the first one
Which expression is equivalent to 89÷34?
F.84 • 93
G.89 • 43
H.98• 34
J.98• 43
Answer:
ok
Step-by-step explanation:
kin
f(x) = -x² - 7x - 5
Find f(-5)
Answer:
5
Step-by-step explanation:
f(-5)=-(-5)^2 - 7(-5) - 5
f(-5)= -25 +35 - 5
f(-5) = -25 +30
f(-5) = 5
Answer:
5
Step-by-step explanation:
if f(-5)
-x^2-7x-5
-(-5)^2-7(-5)-5
-25+35-5
5
The population density of Iceland, in people per square kilometer of land area, increased from 2.5 in 1990 to
3.3 in 2014. During this time period, the land area of Iceland was 100,250 square kilometers. By how many
people did Iceland's population increase from 1990 to 2014?
A 330,825
B 132,330
C 125,312
D 80,200
Given:
The population density of Iceland, in people per square kilometer of land area, increased from 2.5 in 1990 to 3.3 in 2014.
Land area of Iceland = 100,250 square kilometers.
To find:
The Iceland's population increase from 1990 to 2014.
Solution:
Land area of Iceland is constant, i.e., 100,250 square kilometers.
The population density of Iceland, in people per square kilometer of land area in 1990 is 2.5. So, the population in 1990 is
[tex]2.5\times 100,250=250,625[/tex]
population density of Iceland, in people per square kilometer of land area in 2014 is 3.3. So, the population in 2014 is
[tex]3.3\times 100,250=330,825[/tex]
The Iceland's population increase from 1990 to 2014 is
[tex]330,825-250,625=80,200[/tex]
Therefore, the correct option is D.
Your mother gave you $13.32 with which to buy a present. This covered 3/5 of the cost. How much did the present cost?
A. Find the answer.
B. Write a formula for the problem.
Answer:
a. $22.2
b= 13.32/x=3/5
Step-by-step explanation:
13.32/x=3/5
13.32×5=66.6
66.6/3=22.2
x(present cost)=$22.2
Answer:
22.20$
3/5 * cost = 13.32
Step-by-step explanation:
3/5 * cost (total price) = 13.32 (we know that 3/5 of the price is 13.32)
to solve
5/3 to cancel out 3/5 and isolate the cost
5/3 * 13.32 = 22.20
Name the method that is used to measure irregular shaped objects.
Answer:
Displacement
Step-by-step explanation:
hope this helps !
using the slope formula find the slope of the line that passes through these points (7,9) and (2,9)
Answer:
0
Step-by-step explanation:
The formula for slope is [ y2-y1/x2-x1 ].
9-9/2-7
0/-5
-0/5
Since the numerator is 0, the slope is 0.
Best of Luck!
Write an equation for the line represented in the graph below.
help
A ball is thrown from an initial height of 6 feet with an initial upward velocity of 18 fts. The ball's height h (in feet) after t seconds is given by the
following
h=6+18t-16t^2
Find all values of t for which the ball's height is 10 feet.
Round your answer(s) to the nearest hundredth.
(If there is more than one answer, use the "or" button.)
Answer:
gvjjggrhwu ehsi38202 wisbebwjise jwiwooq the ans is the tahat fusne jiow sjxixksbsbs dbx
ln (2x^2) = ln (2-3x)
Answer: Forma Decimal: -2, 0.5
1. How far is Supermarket A from your house? (Round of your answer to the nearest whole number)
2. How far is Supermarket B from your house? (Round of your answer to the nearest whole number)
3. How far are the supermarkets from each other? (Round of your answer to the nearest whole number)
Answer:
13meters far from the supermarket
The distance between Supermarket A and Supermarket B is 35 units.
What is distance formula?The distance formula which is used to find the distance between two points in a two-dimensional plane is also known as the Euclidean distance formula. On 2D plane the distance between two points (x₁, y₁) and (x₂, y₂) is Distance = √[(x₂-x₁)²+(y₂-y₁)²].
From the given coordinate plane, Supermarket A is at (12, 9), House is at (0, 0) and Supermarket B at (-16, -12).
1) Distance between Supermarket A and your house is
Substitute (x₁, y₁)=(12, 9) and (x₂, y₂)=(0, 0) in distance formula, we get
Distance = √[(0-12)²+(0-9)²]
= √144+81
= √225=15 units
2) Distance between Supermarket B and your house is
Substitute (x₁, y₁)=(-16, -12) and (x₂, y₂)=(0, 0) in distance formula, we get
Distance = √[(0+16)²+(0+12)²]
= √256+144
= √400=20 units
3) Distance between Supermarket A and Supermarket B is
Substitute (x₁, y₁)=(-16, -12) and (x₂, y₂)=(12, 9) in distance formula, we get
Distance = √[(12+16)²+(9+12)²]
= √28²+21²
= √1225=35 units
Therefore, the distance between Supermarket A and Supermarket B is 35 units.
To learn more about the distance formula visit:
brainly.com/question/27262878.
#SPJ2
Graph y+3=5(x-4) please quickly
Answer:
It crosses through 0,-23) and (4.6,0)
Step-by-step explanation:
8. Abby went to Olive Garden over the weekend and her bill came out to $23.90. She
decided to tip the waiter 22% for the great service. How much was her total bill? *
help me please!!!!!!
Answer: 81.
Step-by-step explanation:
( (3^4) ^ 1/4) ^ 4
Slope and y intercept please help im stuck on this problem
which is not a equivalent to Ax+by=c?
Answer:y=c/b -A/b
Step-by-step explanation:
please help i’ll give brainliest (find the actual perimeter in meters)
Answer:
0.09 m
Step-by-step explanation:
hope this helps you :):)
Find the slope of the line.Enter your answer in simplist form (-6,10) (-3,-2)
Answer:
-4
Step-by-step explanation:
I know this becasue I did it before but also becasue I checked my work with a slope calculator. You should use one if you don't want to hand do the work. If you do want to do the work it is y2-y1 over x2-x1 :)
25^(2 - 2) = 125
can someone help please
Answer:
the statement is not true 0 is not equal to 125
Step-by-step explanation:
Evaluate 4|-2| - |-3|. a) -5 b) 5 c) 11
please help due in 10 minutes
:(
Martin is interested in joining a gym and has researched the cost of two gyms close to his house. Gym A has a $50
registration fee and costs $30 per month. Gym B has a $100 registration fee and costs $10 per month. The cost of
joining each gym can be modeled by the expressions below, where m represents the number of months.
• Gym A: 30m + 50
Gym B: 10m + 100
Martin writes the equation 30m + 50 = 10m + 100. What would the solution to the equation tell Martin?
A How many months he could go to the gym for $100
.
B. How much money he would be spending after m months
C. How much money he would be spending if he joined both gyms
D. How many months until the total spent is the same for both gyms
Answer:
D. How many months until the total spent is the same for both gyms
Step-by-step explanation:
HOPE THIS HELPS!!
factorise 6x^2+12 !!!!
Answer:
6(x2 + 2)
Step-by-step explanation:
6
2
+
1
2
{\color{#c92786}{6x^{2}+12}}
6x2+12
6
(
2
+
2
)
{\color{#c92786}{6(x^{2}+2)}}
6(x2+2)
Answer:
6(x^2+2)
Step-by-step explanation:
Hope this helps and have a nice day :)