Answer:
-17
Step-by-step explanation:
Basically -25+8 which equals -17
Which expressions are equivalent to 7^-2•7^6
Choose two answers
A.7^2/7^-2
B.7^6/7^-2
C.7^-12
D.(7^2)^2
===========================================
Explanation:
The expression 7^(-2)*7^6 simplifies to 7^4
We use the rule a^b*a^c = a^(b+c). In this case a = 7, b = -2, c = 6
In short, we add the exponents.
----------
In choice A, we use the rule (a^b)/(a^c) = a^(b-c) where we're now subtracting the exponents.
Here we have the exponents subtract to b-c = 2-(-2) = 2+2 = 4. This shows that (7^2)/(7^(-2)) = 7^4
This is why choice A is one equivalent expression.
----------
Choice D is the other equivalent expression since
(7^2)^2 = 7^(2*2) = 7^4
The rule used here is (a^b)^c = a^(b*c). We're multiplying exponents now.
-----------
Alternatively you can find that 7^(-2)*7^6 = 2401 through use of a calculator.
Then go through each answer choice to see which also produce a result of 2401.
find f (-2), f(0), and f(3)
Answer:
f en el chat box
Step-by-step explanation:
Please help me answer this question
Answer:
LOOK BELOW !!!
Step-by-step explanation:
[tex]7y = 8x - 14[/tex]
get rid of the Y and put in a 6
[tex]7(6) = 8x - 14[/tex]
[tex]7 \times 6 = 42[/tex]
[tex]42 = 8x - 14[/tex]
we need to get rid of the negative 14 so its only 8x.
to get rid of 14 on one side you add it to the other
[tex]42 + 14 = 56[/tex]
[tex]56 = 8x[/tex]
to get X by itself have to divide 8 by both sides
[tex]56 + \div 8 = 7[/tex]
[tex]8x \div 8 = x[/tex]
[tex]x = 7[/tex]
If we start with 5 cells, and each cell divides in two every 15 minutes, how many total after 1 hour?
Answer:
80 CellsStep-by-step explanation:
5 x 2 = 10 = Fifteen Minutes (15)
10 x 2 = 20 = Thirty Minutes (30)
20 x 2 = 40 = Forty - Five Minutes (45)
40 x 2 = 80 = Sixty Minutes (60)
80 Cells
A pet store has three fish tanks, each holding a different volume of water and a different number of fish. Tank AAA holds 40\text{ L}40 L40, start text, space, L, end text and 555 fish. Tank BBB holds 100\text{ L}100 L100, start text, space, L, end text and 121212 fish. Tank CCC holds 180\text{ L}180 L180, start text, space, L, end text and 232323 fish.
Answer:
The tanks by volume per fish from least to greatest:
Tank C, Tank A, Tank B
Step-by-step explanation:
A pet store has three fish tanks, each holding a different volume of water and a different number of fish.
Order the tanks by volume per fish from least to greatest.
Tank A holds 40 L and 5 fish.
= 40L/5 fishes
= 8 volume per fish
Tank B holds 100 L and 12 fish
= 100L/12 fishes
= 8.3333333333 volume per fish
Tank C holds 180 L and 23 fish.
= 180L /23 fish
= 7.8260869565 volume per fish
The tanks by volume per fish from least to greatest
Tank C, Tank A, Tank B
What are the measures of angles 1 and 2? R m21 = m22 = 539 U 1 2. 2 S 470 T
Answer: m/_ = 50
m/_= 130
Step-by-step explanation:
2) There are fourteen shirts in your closet,
seven blue and seven green. You
randomly select one to wear on Monday
and then a different one on Tuesday. You
wear blue shirts both days.
Answer: 7/14 possibility to get a blue shirt which would be a 50% chance
Step-by-step explanation:
7 blue+7 green = 14 colors
5y + 4x = 8
y + 5x = 10
What’s the answer need it nowww
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Find the value of f(5) for the function.
f(a)=7(a+3)-4
f(5)=
Answer:
f(5)=52
Step-by-step explanation:
f(a)=7(a+3)-4
f(5)=7(5+3)-4
f(5)=7(8)-4
f(5)=56-4
f(5)=52
Which of the following relations is a function?
A {(-5,5), (0, 3), (0, -5), (5,4)}
B (3, 4), (3,5), (3, 6), (3,7)
C {(-2, 1), (0, 1), (2,5), (4,5)}
D {(3, 2), (5,4), (5, 6), (7, 8)}
help me pls .. will mark brainliest
Answer:
y=3x-1.5
Step-by-step explanation:
equation is
y=mx+b
m= slope
b= y-intercept
Since i helped so many people, please HELPPPPP NOWWW thnaks
Samuel needs 313 feet of wood to build a fence. The wood comes in lengths of 13 feet.
How many total pieces of wood will Samuel need? Theresa needs twice as many feet of wood as Samuel. How many pieces of wood does Theresa need?
Samuel needs
______pieces of wood.
Theresa needs
_____pieces of wood.
Answer:
theresa needs 48 pieces and samuel needs 24 pieces
Step-by-step explanation:
the exact answers are 24.07692307692308
48.15384615384615
The product of two negative rational numbers is
zero.
Answer:
False
Step-by-step explanation:
This statement is false. If you multiply two negative rational numbers together, say -8 and -7, you get 56. In fact, you cannot multiply any two negative rational numbers and get zero.
The table shows how much Tracy earns babysitting Saturday nights, depending on how many hours she works
Answer:
57
Step-by-step explanation:
6 X 9.50
HELP. GET YA MONEY HERE.
Answer:
so the dude above me can get brainliest :)
Step-by-step explanation:
Laney bought 1 2/3 pounds of grapes. She also
bought bananas that were
2 1/4 times the weight of
the grapes. How much did the bananas weigh? helppppp
Answer:
The bananas weigh 3 3/4 pounds.
Answer: 3 3/4
Step-by-step explanation:
All we have to do is multiply the weight of the grapes by 2 1/4.
= 1 2/3 x 2 1/4
= 5/3 x 9/4
= 45/12
= 3 9/12
= 3 3/4
Laura is planning a party for her son. She has $50 dollars remaining in her budget and wants to provide one party favor per person to at least 10 guests. She found some miniature stuffed animals for $6.00 each and some toy trucks for $4.00 each. Which system of inequalities represents this situation, where x is the number of stuffed animals and y is the number of toy trucks?
Answer:
The system of inequalities that represents this situation is:
x+y≥10
6x+4y≤50
Step-by-step explanation:
As the statement says that Laura wants to provide one party favor per person to at least 10 guests, the first inequality would indicate that the number of stuffed animals plus the number of toy trucks should be equal or greater than 10:
x+y≥10
Also, the statement indicates that miniature stuffed animals cost $6.00 each and the toy trucks cost $4.00 each and that Laura has $50. From this, you would have an inequality that indicates that 6 for the number of miniature stuffed animals and 4 for the number of toy trucks would be equal or less than 50:
6x+4y≤50
The answer is that the system of inequalities that represents this situation is:
x+y≥10
6x+4y≤50
Which statements describe a parabola? Check all that apply. A parabola is the set of all points equidistant from the directrix and focus. The fixed line is called the vertex of a parabola. The focus is a fixed point inside the parabola. The line of symmetry intersects the focus and directrix. The line of symmetry and the directrix are perpendicular. The parabola intersects the directrix.
Answer:
A parabola is the set of all points equidistant from the directrix and focus.
The line of symmetry intersects the focus and directrix
The line of symmetry and the directrix are perpendicular
Step-by-step explanation:
A parabola is the set of all points in a plane that are equidistant from a fixed point (focus) and a line (directrix).
The fixed line of a parabola is known as the directrix of the parabola.
The line of symmetry is a line that passes through the focus and is perpendicular to the directrix. The line of symmetry divides the parabola.
The directrix of a parabola does not intersect touch the parabola
Answer:
1,3,4,5 are correct
Step-by-step explanation:
The graph represents a functional relationship.
On a coordinate plane, a straight line with a negative slope begins at point (1, 3), crosses the x-axis at (4, 0), and exits the plane at (18, negative 14).
Which value is an input of the function?
–14
–2
0
4
Answer:
its b) -2
Step-by-step explanation:
i just did it
is the expression 5x-3(2x-4)is equiva
lent to the expression 12-x
Answer:
the answer is im in college and wait nope im in middle school cant help sorry
Step-by-step explanation:
you need help ask a teacher thank youAnswer:
Yes. They are equal.
Step-by-step explanation:
Let's simplify 5x-3(2x-4)
5x-3(2x-4)
5x-6x-12 (distribute)
-x+12
-x+12 and 12-x is the same thing just reversed.
so they are equal.
hope this helps
brainliest?
which point is the image of P
Answer:
A
Step-by-step explanation:
we know that xoy is 90° on every quadrant
also the origine where p start is a little bit down from x axis so A is the right answer as it is the most logical point
D and C cant be P because are a very large angle of rotation than 105.B is smaller then 105 rotation of p so A is the right one.
In an examination,40% students passed in Maths only,30% passed in Science only and 10% students failed in both the subjects. If 400 students passed in Science, find the total number of students by drawing a Venn diagram.
Answer: 506.1
Step-by-step explanation:
The total number of students is 506.1 because 400 Plus 40% Plus 10% is what answer i got . But notice i said but - if im wrong you can always figure it out yourself
You make an initial deposit of $2,500 in an account that offers 6% simple interest per year. How much will be in the account after 4 years?
Enter the correct answer in the box.
Answer:
3100
Step-by-step explanation:
3100
The amount of money in the account that he has after 4 years will be $3100.
What is simple interest?Simple interest is the concept that is used in many companies such as banking, finance, automobile, and so on.
A = P + (PRT)/100
Where P is the principal, R is the rate of interest, and T is the time.
You make a $2,500 initial deposit into an account that pays 6% simple interest per year.
Then the amount of money in the account that he has after 4 years will be given as,
A = 2500 + (2500 x 6 x 4)/100
A = 2500 + 600
A = $3100
The amount of money in the account that he has after 4 years will be $3100.
More about the simple interest link is given below.
https://brainly.com/question/2793278
#SPJ2
The high school decided to buy new uniforms for the girls' and boys' basketball teams. They plan to buy 35 uniforms with a total cost of $1,235. The store offers discounts based on the number of items the school buys, as shown. What will the discounted price be for the high school?
Answer:
1049.75
Step-by-step explanation:
take 15% off of 1235 or 1235 divided by 15%
The discount will be 15% and the discounted price is $1049. 75
What is discount?A discount is a price reduction you offer a customer. There are also other methods that you can use to attract customers.
Given:
price for 35 uniforms = 1235
as, there is 15% discount for the items 25- 49 items.
So, there is 15% discount for 35 uniforms
Thus, the discounted price is
=1235 (1- 15%)
=1235 (1- 0.15)
=1235 x 0.85
= $1049. 75
Hence, the discounted price is $1049. 75.
Learn more about discount here:
https://brainly.com/question/3541148
#SPJ2
4.32(3.7+1.65)= ??????
Answer:
9.67
Step-by-step explanation:
what is the answer to 8/9 - 2/3
Answer 2/9 or two out of nine
bro no cap i recommend you learn this this is like the easiest math it worle like if there was out of 1 to 1000000 that right there is like 20 thats kinda low my mqns but really you multiply 2/3 on the numerator and denominater by 3 giving you 8/9 - 6/9 answer 2/9
If a sample of gold were reduced to the smallest possible particles of pure gold, which statement would most accurately describe the result? If a sample of gold were reduced to the smallest possible particles of pure gold, which statement would most accurately describe the result?
A The sample would be reduced to atoms of gold.
BThe sample would be reduced to molecules of gold.
C The sample would be reduced to protons and neutrons of gold.
D The sample would be reduced to electrons and protons of gold.
Answer:
The sample would be reduced to atoms of gold.
Reason: All things are made up of atoms.
Answer:
The atoms of gold.
Step-by-step explanation:
2x – 2 7
how do i graph this?
tabulate the of value x and y. i don't y so if u hv it in the question then u put maybe when x=0 then find value of y and all intergers near zero of ur choice in the x value.
eg x= -1, find value of y
after draw the x,y plane and graph ur answers.
A point has:
Ono shape
no color
no size
no physical characteristics
all of the above
Solve each equation. Check your solution.
9= 4a + 13
Oa. -16
Ob. -1
c. 1
Od 5
Answer:
b. -1
Step-by-step explanation:
9=4a+13
-13 -13
--------------
-4=4a
4a/-4
a=-1
