Answer:
f(x) = -3 when x = -1
Step-by-step explanation:
Let's go through this!
So our equation is f(x) = 2x - 1
we are asked for the value of f(x) when x = -1
Let's consider this, the f(x) value is the y value
and the x value in f(x) is the x value
So when x = -1
what is the y value?
we can use the equation to subsitute -1 into x and solve for f(x)
f(x) = 2(-1)-1
f(x) = -3
Our answer is -3
Sam is using the expression 8mn in class. What is the value of the expression when m = 4 a n d n = 12 ?
Answer:
8 x 4 x 12 = 384
Step-by-step explanation:
8 x 4 x 12 = 384
your answer would be 384
Step-by-step explanation:
8(4)(12)= 384
Uma pesquisa realizada pela IBGE constatou que a população de uma cidade havia aumentado de 82.350 para 105.200 habitantes calcule o valor desse aumento em índices percentuais
Answer:
the value of this increase in percentage indices is 27.77%
Step-by-step explanation:
The computation of the value of this increase in percentage indices is shown below:
Given that
The population has increase from 82,350 to 105,200
So, the increase in percentage would be
= (105,200 - 82,350) ÷ (82,350)
= 22,850 ÷ 82,350
= 27.77%
Hence, the value of this increase in percentage indices is 27.77%
PLEASE HELP
Complete the function for this graph:
Answer:
The equation is:
f(x) = Ix + 3I - 2
Step-by-step explanation:
For a function like:
f(x) = Ix - kI + c
k is the x-value where the vertex is, and c is the y-value where the vertex is.
In the graph we can see that the vertex is in the point (-3, -2)
then:
x-value = -3 = k
y-value = -2 = c
Replacing those in the equation for the function:
f(x) = Ix - (-3)I - 2
f(x) = Ix + 3I - 2
Which expression is equivalent to \left(3^{-6}\times 3^{3}\right)^{-1}\normalsize?(3 −6 ×3 3 ) −1 ? 3^{-19}3 −19 3^{18}3 18 3^{-3}3 −3 3^{3}3 3
Answer:
27
Step-by-step explanation:
Given the expression
[tex]\left(3^{-6}\times 3^{3}\right)^{-1}\\[/tex]
According to law of indices, this can be written as;
[tex]\left(3^{-6+3})^{-1}\\\\= (3^{-3})^{-1}\\\\= 3^{-3*-1}\\\\= 3^3\\\\= 27[/tex]
Hence the required answer is 27
PLEASE HELP ON A TIMER EXTRA POINTS ONLY ANSWER IF YOU KNOW NO LINKSSSSS THANKS BYE. The triangle represents a scale drawing that was created by using a factor of 2. 5 in. 5 in. 5 in. [Not drawn to scale] Which is true of the measures of the sides of the original triangle? 1 O Each side of the original triangle is į the length of each side of the scale drawing. Each side of the original triangle is 2 times the length of each side of the scale drawing
Answer:
Each side of the original triangle is 1/2 the length of each side of the scale drawing
Step-by-step explanation:
The scale drawing was created using a factor of 2 ⇒ each side of the original triangle was multiplied by 2 ⇒ the original triangle lengths are half the size of the scale drawing
Answer:
Each side of the original triangle is 2 times the length of each side of the scale drawing.
Given that 3x : 8 = 9 :2 , find the value of x .
Answer:
i hope you understand this answer
[tex]3x : 8 = 9 : 2[/tex]
[tex] \frac{3x}{8} = \frac{9}{2} [/tex]
[tex]3x × 2 = 8 × 9[/tex]
[tex]3x = \frac{8 \times 9}{2} [/tex]
[tex]3x = 4 \times 9[/tex]
[tex]x = \frac{4 \times 9}{3} [/tex]
[tex]x = 4 \times 3[/tex]
[tex]x = 12[/tex]
Help me with this thanks
A shark is cruising at a depth of 32.9 meters below sea level. If it
ascends 15.5 meters, what is the shark's new depth?
A bag contains 100 ounces of birdseed.
The birdseed company plans to reduce
the amount of seed in a bag by 15%.
How many ounces will be in a new bag
of birdseed?
F
15 OZ
H 85 oz
G
17.25 oz
J
115 Oz
Answer:
H
Step-by-step explanation:
Can someone help me please ? :)
Answer:
(4, 3 ) and (1.5, 8 )
Step-by-step explanation:
Given the 2 equations
2x + y = 11 → (1)
xy = 12 → (2)
Rearrange (1) expressing y in terms of x by subtracting 2x from both sides.
y = 11 - 2x → (3)
Substitute y = 11 - 2x into (2
x(11 - 2x) = 12 , that is
11x - 2x² = 12 ( subtract 12 from both sides )
11x - 2x² - 12 = 0
2x² - 11x + 12 = 0 ← in standard form
(x - 4)(2x - 3) = 0 ← in factored form
Equate each factor to zero and solve for x
x - 4 = 0 ⇒ x = 4
2x - 3 = 0 ⇒ 2x = 3 ⇒ x = 1.5
Substitute these values into (3) for corresponding values of y
x = 4 : y = 11 - 2(4) = 11 - 8 = 3 ⇒ (4, 3 )
x = 1.5 : y = 11 - 2(1.5) = 11 - 3 = 8 ⇒ (1.5, 8 )
What’s 300(6+20)-120?
Answer: 7680
Step-by-step explanation:
Answer:
7,680
Step-by-step explanation:
Okay, so we use PEMDAS right, so we start with the parenthesis:
6 + 20 = 26
300 x 26 = 7,800
7,800 - 120 = 7,680
So 300(6+20)-120=7,680
hope this helps:)
What is the measure of Zr?
Angles are not necessarily drawn to scale L M 133 N O
Answer:
47°
Step-by-step explanation:
Line LN equal 180°. Since MON equals 133°, subtract 180-133 to get 47°
PLZ HELP DUE TODAY NO LINKS I WILL REPORT!!!
Answer:
452.16 in^2
Step-by-step explanation:
multiply 12 times 12
then multiply that number by Pi(3.14)
Pls help what is the answer? I need help, no links are allowed.
Answer:
44 cm³
Step-by-step explanation:
If you break up this shape into 2 pieces you get a rectangle with the measurements of 2, 2, and 5 and another rectangle with the measurements of 2, 2, and 6. You then multiply 2, 2, and 5 together which will get you 20, and multiply 2, 2, and 6 together which will get you 24. You will then add both products which will get you 44. Since the measurement is in centimeters and it is a 3 dimensional shape it will then become 44 cm³.
You have worked 35 1/2 hours and your hourly rate payid $10.75. Calculate your straight - time pay.
Please help.
Answer:
C
Step-by-step explanation:
You need to times 35.5 by 10.75 which will get you 381.62 which rounds to 381.63
Can you help please.....
Answer:
b, d, and e are the three statements that make the most sense to be true.
Step-by-step explanation:
tell me if this is wrong.
2x + 5 = 15 Check:
please and thank you
Answer:
[tex]x=5[/tex]
Step-by-step explanation:
VERY EASY
Jillian wants to figure out how much water will fit inside the water tower that is by her house. So she wants to find the volume of the water tower. True or false?
Answer:
I'm going to say true because that's the most logical answer
Step-by-step explanation:
Jim needs 224 programs for the school play on Thursday. How many boxes of programs will he need, given that each box contains 46 programs?
Answer:
He needs 5 boxes.
Step-by-step explanation:
224 divided by 46 is 4.86956521739, however he needs all of them, so he needs to put the extra in another box.
Patricia recorded the prices of watches at a store. The prices are shown in the table.
Watches
Price (dollars)
15
22
16
24
16
20
12
27
What is the median price of the watches in dollars?
peter pays $6.20 for a gallon of petrol in Canada. His friend Doug pays $1.50 per liter in Barbados. Which petrol is more expensive?
Answer:
Canada
Step-by-step explanation:
Multiply $1.50 by the amount of liters in a gallon 3.78541 and it is less than 6.20
Answer:
peter pays more money
Step-by-step explanatipeter is more
because 4 liters is a bit over a gallon and each liter is 1.50 so 1.50 x 4 is 6 dollars so peter pays more money
h.e.l.p. p.l.s.s.s.s.
Answer:
A number that can be made by dividing two integers (an integer is a number with no fractional part). The word comes from "ratio". But π (pi) is not a rational number, it is an "Irrational Number".
Step-by-step explanation:
mark me please
Answer:
Since rational numbers are all numbers that can be written as a fraction, and includes positive numbers, negative numbers and the 0. We can conclude that since -3.4 can be written as a fraction it is a rational number.
2
✓3
✓5
✓6
A rose garden is formed by joining a rectangle and a semicircle, as shown below. The rectangle is 24 ft long and 18 ft wide. If the gardener wants to build a
fence around the garden, how many feet of fence are required? (Use the value 3.14 for 1, and do not round your answer. Be sure to include the correct unit in
your answer.)
0
ft
ft?
ft
18
х
?
24 ft
Answer:
Area = 559.17 sq ft
Step-by-step explanation:
Area (rectangle) = 18 x 24 = 432
Area (semi-circle = πr²÷2 = 81π/2 = 127.17
Part B Which of these statements are true? Choose all that apply. . А More than 20% of girls and more than 20% of boys chose math as their favorite subject. Fewer than 30% of girls and fewer than 20% of boys chose English as their favorite subject. с Fewer than 20% of girls and fewer than 20% of boys chose history as their favorite subject. D More than 20% of girls and more than 30% of boys chose science as their favorite subject B
Jabari owns 100 shares of Stock A and 45 shares of Stock B For the past month, his stocks have been fluctuating inversely. Stock A decreased
by m cents per
share and Stock B increased by n cents per share. Which equation can be used to find the total change in value of Jabari's
shares per month?
Answer:
Answer is
(100*-m)+(45*n)
Step-by-step explanation: because stock decreases per sock so you're going to multiply 100 times -m because it is decreasing so it will be negative
Then it will be 45*n because it increases per number of stocks so you multiply 45 which is the number of stocks times n
Step-by-step explanation:
help m.e please please
Answer:
the answer is -2,-2
Step-by-step explanation:
Two parallel lines are cut by a transversal. What is the measure of 26?
A. 180°
B. 90°
C. 123°
D. 57°
Answer:
57
Step-by-step explanation:
1+2=180
123+2=180
2=180-123
2=57
2=6=57 ( because 2 and 6 are 2 isotopic angles)
Help I need to find the area????!!!?!?!?
Ramon paid $3.25 for notepads and $1.80 for markers.
how much of each item did he buy?
notepad cost: $0.65
markers cost: $0.36
PLZ HELP ASAP!!!! NEED HELP!!!
Answer:
I'm pretty sure the answer is C