Answer:
−x+−7
Step-by-step explanation:
Let's simplify step-by-step.
4x−6−(5x+1)
Distribute the Negative Sign:
=4x−6+−1(5x+1)
=4x+−6+−1(5x)+(−1)(1)
=4x+−6+−5x+−1
Combine Like Terms:
=4x+−6+−5x+−1
=(4x+−5x)+(−6+−1)
=−x+−7
select the equivalent expression. (a^-2 • 8^7)^2
a. 8^9
b. (8a)^10
c. a^-4 • 8^14
Answer:
c.
Step-by-step explanation:
The equivalent expression of [tex](a^{-2}.8^{7} )^{2}[/tex] is [tex]a^{-4} .8^{14}[/tex].
What is an expression?An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division. The terms involved in an expression in math are:
Constant: A constant is a fixed numerical value.
Variable: A variable is a symbol that doesn't have a fixed value.
Term: A term can be a single constant, a single variable, or a combination of a variable and a constant combined with multiplication or division.
Coefficient: A coefficient is a number that is multiplied by a variable in an expression.
Given expression
[tex](a^{-2}.8^{7} )^{2}[/tex]
Using formula [tex]a^{-m} =\frac{1}{a^{m} }[/tex]
= [tex](\frac{8^{7} }{a^{2} } )^{2}[/tex]
= [tex]\frac{(8^{7}) ^{2} }{(a^{2}) ^{2}}[/tex]
Using [tex](a^{m} )^{n} =a^{m \times n}[/tex]
= [tex]\frac{8^{14} }{a^{4} }[/tex]
= [tex]a^{-4} .8^{14}[/tex]
Option C is correct.
The equivalent expression of [tex](a^{-2}.8^{7} )^{2}[/tex] is [tex]a^{-4} .8^{14}[/tex].
Find out more information about expression here
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The area of a circle is represented by the equation A = ar2 , where r is the
radius. The area is 64 r m². What is the length of the diameter, in meters?
A. 8 m
B. 12 m
C. 16 m
D. 32 m
PLEASE I NEED HELP
evaluate: -4f, when f = 2
Answer:
-8
Step-by-step explanation:
-4f = -4(2) = -8
Answer:
- 8
Step-by-step explanation:
-4f
f = 2
-4(2)
= -8
HELP ASAP WILL MARK BEST
Use the drawing tool(s) to form the correct answer on the provided graph.
Plot the x-intercept(s), y-intercept, vertex, and axis of symmetry for the function below.
g(x) = x^2 + 4x + 3
Answer:
See the graph attached
x-intercept(s), y-intercept, vertex, and axis of symmetry for the function shown
x-intercepts = (- 3, 0) and (- 1, 0)y-intercept = (0, 3)vertex = (- 2, - 1)axis of symmetry is the line x = - 2pls help me with my homework
Answer:
[tex] \frac{1}{81} [/tex]
Step-by-step explanation:
express that with a positive exponent using this:
[tex] {a}^{ - n} \frac{1}{ {a}^{n} } [/tex]
so ..
[tex] {9}^{ - 2} = \frac{1}{ {9}^{2} } [/tex]
now you have to evaluate the exponent/ power
so..
[tex] \frac{1}{ {9}^{2} } = \frac{1}{81} [/tex]
why 81 ?
because the exponent of 9 is 2 so you have to multiple 9 by itself so
9x9=81
so the answer is
[tex] \frac{1}{ {81}^{} } [/tex]
sorry for the bad english hehe
Moms car is 180 inches long. Dads truck is 75% longer than moms car. How long is the truck?
Someone plz help me I will give brainliest plz show your work.
Answer:
$3,500
Step-by-step explanation:
6,000 divided by 12
500 x 7
HELP! BRAINLIEST AND 15 POINTS!
Step-by-step explanation:
first solve for h
[tex]fh(4)=f(\frac{4+3}{3} )=f(\frac{7}{3} )[/tex]
[tex]f(\frac{7}{3} )=-3(\frac{7}{3} )-1=-7-1=-8[/tex]
[tex]so fh(4)=-8[/tex]
PLS help me pls pls pls
Write an expression to show the final cost, in dollars, of x games when using the coupon.
Answer:
5x + 2.50 - 0.2
Step-by-step explanation:
The 5x is because each game (x) costs 5 dollars. You add 2.50 because that is how much extra you have to pay for the bowling shoes. To compensate for the -20% off of the total price, I added the -0.2 (20% as a decimal).
Note:
I am 100% sure about the "5x + 2.50 -" part. The 0.2 part not so much.
I hope this is correct and helps though!
13.2/4 and show your work
What is the solution of y/-2 ≤ 3?
Lin's father is paying for a $20 meal. He has a 15%-off coupon for the meal. After the discount, a 7% sales tax is applied. What does Lin's father pay for the meal? Explain or show your reasoning.
Answer:
$18.19
Step-by-step explanation:
20 decrease 15% =
20 × (1 - 15%) = 20 × (1 - 0.15) = 17
17 increase 7% =
17 × (1 + 7%) = 17 × (1 + 0.07) = 18.19
so how much homework do you guys have on average daily? ive just been wondering if my school has started to give out more homework than usual lately.
Answer:
At my school I don't get too much homework. My county doesn't have classes on Wednesday so usually my teachers give work on Monday that is due on Wednesday and then work on Thursday due in Sunday. Also I only get homework for 3 classes Math, S.S and ELA, not science.
btw - im in 8th grade
Step-by-step explanation:
simplify imaginary number i^25
Answer:
Step-by-step explanation:
i² = -1
i⁵ = i² * i² * i
= (-1) * (-1) * i
i⁵ = i
i²⁵ = i ⁵ˣ⁵ = (i⁵)⁵
= (i)⁵
= i
Solution of
y=2x^3-4x^2+3x-1
A certain population has 1,000 people in it. Which of the following numbers would be an appropriate number for a
random sample?
O 10
200
O 1,000
0900
Answer:
10
Step-by-step explanation:
Two squares are attached to the sides of a quarter circle as shown.
What is the best approximation for the area of this figure?
Use 3.14 to approximate pi.
178.5 mm²
215.7 mm²
231.8 mm²
278.5 mm²
Answer:
278.5 mm2
Step-by-step explanation:
can someone help me or is no one else on this app helpful anymore
Answer:
Your answer is
$5 after 3.75 miles
Hope that this is helpful. Tap the crown button, Like & Follow me
Please help me!!!!! with this i’m begging!!!
Answer:
Step-by-step explanation:
This looks like my teachers worksheet
someone please help !!
Answer:
50
Step-by-step explanation:
138-88=50
Write a function in terms of t that represents the situation.
An item costs $4.50, and its price increases by 3.5%
each year.
Answer:
4.5(1.035)^t
Step-by-step explanation:
An inrease of 3.5% means that each year's total is 103.5% of the year before, right?
Year 1 = 4.5(1.035) = 4.66
Year 2 = 4.66(1.035) = 4.82
etc.
So, year 2 is 4.5(1.035)(1.035) = 4.82
Multiplying something by itself can be written with an exponent instead, so 2 years is...
4.5(1.035)2
Since the number of years is the variable (let's call it t)...
solve the inequality x^2-4x-7<0
Answer:
Inequality Form:
2 − √ 11 < x < 2 + √ 11
Interval Notation:
( 2 − √ 11 , 2 + √ 11 )
Step-by-step explanation:
Solve the inequality for x by finding a , b , and c of the quadratic then applying the quadratic formula.
I need help what is the area
Answer:
A. 42 cm²
Step-by-step explanation:
6 × 7 = 42 cm²
A restaurant buys a freezer that is 6 feet long, 2 feet wide, and 2.5 feet tall. What is the volume of the freezer?
© 21 cubic feet
10.5 cubic feet
30 cubic feet
15 cubic feet
Answer:
30 cubic feet
Step-by-step explanation:
What is an equivalent fractions
Answer:
fractions that are the same
What is the additive inverse of (7x – 20)?
Answer:
cannot factor.
Step-by-step explanation:
A dog weighs 60 N on planet Earth. On the moon, he would weigh about
176 (one-sixth) of what he does on Earth. How much does the dog weigh on
the moon?
Answer:
16.09N
Step-by-step explanation:
Answer:
[tex]\boxed{\purple{\textsf{The weight of the dog on moon is \textbf{10 Newtons. }}}}[/tex]
Step-by-step explanation:
Given that the weight of the dog on the earth is 60N . We need to find the weight of dog on the moon. So we know that the weight of an object is one sixth the weight of an object on the moon. In other words the acceleration due to gravity is one sixth on the moon that of earth. We can use a formula as ,
[tex]\qquad\boxed{\boxed{\sf Weight_{(On \ moon )}= \dfrac{1}{6}\times Weight_{(On \ earth )}}}[/tex]
On substituting the respective values :-
[tex]\sf\implies Weight_{(On \ moon )} = \dfrac{1}{6}\times Weight_{(On \ earth )} \\\\\sf\implies Weight_{(On \ moon )} =\dfrac{1}{6}\times 60 N \\\\\sf\implies\boxed{\pink{\frak{ Weight_{(On \ moon )}= 10 \ Newtons }}}[/tex]
Which ordered pair is a solution of the equation y = 10x?
A. (−6, −60)
B. (8, 90)
C. (8, 70)
D. (−10, −80)
Someone answer this fast please
Answer:
8 4 7 5 2
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
i believe its A the rest dont make that much sense
I will brainliest to whoever can solve this :)
Answer:
All I can tell you from what you've given me is that the slope is positive, and the y-intercept is 1.
Step-by-step explanation:
Hope It helps!