Which pairs of expressions are equivalent?
Quick
Answer:
a
Step-by-step explanation:
Answer:
its A.
Step-by-step explanation:
Bc i just did it
-1 = -3(3r - 8) - 7. what does r equal?
Answer:
R=2
Step-by-step explanation:
A school has all of the students in grade 8 take a math test. Several samples are taken from the results. Which of the following samples is NOT likely to produce a representative sample of the population?
What is the best answer for this
Step-by-step explanation:
the answer is 4
a+(-7)+3=0
a=7-3
a= 4
Answer:
4
Step-by-step explanation:
There are two ways of going about this problem. One could simply substitute every given answer and simplify to see if it makes a true statement. Conversely, one could solve the given equation with inverse operations. In this case, it is easier to solve with inverse operations.
Undo parenthesis,
a + (-7) + 3 = 0
a - 7 + 3 = 0
Simplify,
a - 7 + 3 = 0
a - 4 = 0
Inverse operations,
a - 4 = 0
+4
a = 4
HELP ME 7th grade math
Find the surface Area
Answer:
30.24
Step-by-step explanation:
I times the base by the height then divided by 2
The diameter of a circle is 6 units.
What is the radius of the circle?
-khan academy
Which of the following represents the factorization of the polynomial below? 2x² + 5x +3
Answer:
Correct Answer D.
a × c = 11, b = 10
10 × 1 = 10
10 + 1 = 11
Divide the ten and 1 by 2
(x = 2) (2x+1)
Step-by-step explanation:
please help, it's due in less then 30 minutes :')
Answer:
The answer is b. the range of Greta's graph is y<0
Step-by-step explanation:
WILL GIVE BRAINLIEST!
True or False.
A plumber who earns $12 per hour and works 13½ hours has a total earnings of $162.
True
False
Answer:
True
Step-by-step explanation:
12*13=156
12*0.5=6
156+6=162
Then we put a money sign in front and a . point after the 2 and two 0's and we get $162.00
ralph and edie each solved the equation (x-7)^2 - 100 = 0. ralph says the correct answer is x= -3. who is correct? how do you know?
An is an operation that reverses the effect of another operation.
Answer:
Inverse operation
Step-by-step explanation:
Basically it is an operation that reverses the effect of another operation.
A new bank customers with 3,000 wants to open a money market account. The bank is offering a simple interest rate of 1.1% a. How much interest will the customer earn in 20 years? b. What will be the account balance after 20 years?
Answer:
$660
Step-by-step explanation:
answer answer answer answer
Use the KNOWS Strategy to solve the following problem.
Mia earns $105 for 7 hours of work. Diego earns $150 for 15 hours of work.
Who earns more money per hour?
Answer:
mia earns 15$/h and diego 10$/h
Step-by-step explanation:
105/7=15$ per hour
150/15=10$ per hour
What is 1,050/55 What is the answer.
Answer: 19.0909090909 or 19
If the sales tax rate is 7%, how much tax would Luis pay for a $325 bicycle?∨
Answer:
24.20 tax
369.98 total
Step-by-step explanation:
Find the first three terms of the sequence below.
Tn = 3n^2- 4n - 3
Answer:
Look on the internet , It's easy
Find x
Need help fast please !!
Answer:
[tex] x = 4 \sqrt{3} [/tex]
Step-by-step explanation:
By Pythagoras Theorem:
[tex] {x}^{2} = {( \sqrt{8 \times 4}) }^{2} + {(4)}^{2} \\ \\ {x}^{2} = {( \sqrt{32}) }^{2} + {(4)}^{2} \\ \\ {x}^{2} = 32 + 16 \\ \\ {x}^{2} = 48 \\ \\ x = \sqrt{48} \\ \\ x = \sqrt{ {4}^{2} \times 3} \\ \\ x = 4 \sqrt{3} [/tex]
q + 12 ≥ 5
Solve the inequality
Answer:
Q≥-7
Step-by-step explanation:
Q+12≥5 subtract 12 from both sides Then simplify
Find the side of an equilateral triangle if its area is 25√3 cm2
Answer:
10
Step-by-step explanation:
area=√3/4×a^2
100√3 = √3×a^2
a^2 = 100
a=10
side = 10
Eight avocados cost $4.
How much do 16 avocados cost?
How much do 20 avocados cost? $10 because it’s 0.50 per avocado
How much do 9 avocados cost?
Answer:
If each avocado costs 0.50, then 16 avocados would cost $8.00, 9 avocados would cost $4.50
Hope this helps! :)
Find an explicit rule for the nth term of a geometric sequence where the second and fifth terms are -6 and 162, respectively. (2 points)
a
an = 2 • 3n - 1
b
an = 2 • (-3)n - 1
c
an = 2 • 3n
d
an = 2 • (-3)n + 1
Answer: C is the answer
what is a difference between the sector and the segment of a circle?
Step-by-step explanation:
The difference between the sector and the segment of a circle is :
Sector ➡ The region enclosed by any two radii and the corresponding arc of a circle is a sector of the circle.
Whereas
Segment ➡ The region enclosed by a chord and corresponding arc is called the segment of a circle.
Hope it will help :)❤
what is the sign of A times ( - b)
Answer:
i believe it's negative.
Step-by-step explanation:
if the question is asking A x -B it should be negative because it's a negative number times a positive. hope i helped.
Is (3,15) a solution for y = 5x
Answer:
yes
Step-by-step explanation:
15 = 5(3)
15 = 15
Answer:
Yes
Step-by-step explanation:
15 = 5(3)
15 = 15
Can somebody plz help answer this math problem (only if u know how to do it) thx :3
WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :DDD!
Answer:
hour hand = 7.5 x 2 for the diameter. C = 2(pi)(15) = approx. 94 centimeters. Minute hand = 9.5 x 2 = 19, C = 2(pi)(19) = approx. 119 centimeters
Step-by-step explanation:
On a map, 1 inch equals 5 miles. Two cities are 3 inches apart on the map. What is the actual distance between the cities?
The actual distance between the cities is ___ miles.
Answer:
15
Step-by-step explanation:
cross multiplying, [tex]\frac{1}{5}[/tex] × [tex]\frac{3}{x}[/tex]
then it would be 15 =1x
and 1x is basically just one, so 15 = x
Answer with evidence I give points and brainiest and friend me for personal points
Answer:
12.75ft²
Step-by-step explanation:
Step 1: Determine the formula for the area of a trapezoid
The formula for the area of a trapezoid is A=1/2(b1+b2)*h where b1 and b2 are the bases of the trapezoid and h is the height of the trapezoid.
Step 2: List given information
b1=8ft
b2=9ft
h=1.5ft
Step 3: Plug given variables into the formula
A=1/2(b1+b2)*h
A=1/2(8+9)*1.5
A=1/2(17)*1.5
A=8.5*1.5
A=12.75
So the area of the seat is 12.75ft²
URGENT !!!!! PLEASEE ANSWER CORRECTLY !!!!!! WILL MARK BRIANLIEST !!!!
Write an expression that is equivalent to -2/5(15 - 20d +50)
Explain please!:)
Answer:
-26 + 4/5d
Step-by-step explanation:
-2/5 ( 15 - 2d + 50)
= -2/5 ( 65 - 2d)
= -2/5 * 65 - (-2/5) * 2d
= -26 - (-4/5d)
= -26 + 4/5d