Answer: 20 pens
5x5=25
5x4=20
What is the completely reduced radical form of 80
Answer:
Step-by-step explanation:
Well technically 80 is completely reduced but I think your question is square root 80.
So what is the biggest square that can multiply something to get 80?
Well that would be 16.
4Sqrt5 is the completely reduced radical form of square root 80.
4. Solve each equation for x. (8 points: 2 points each)
a.) 3x-12y=27
b.) 6x-7y=-2
c.) 4x-k=17
d.) kx+c=9
Answer:
a. x = 9 + 4y
b. x = (7y-2)/6
c. x = (17 + k)/4
d. x = (9-c)/k
Step-by-step explanation:
In each of the equations, we want to make x the formula subject
a) 3x-12y = 27
3x = 27 + 12y
3x = 3(9 + 4y)
x = 9 + 4y
b) 6x-7y = -2
6x = 7y-2
x = (7y-2)/6
c) 4x - k = 17
4x = 17 + k
x = (17 + k)/4
d) kx + c = 9
kx = 9-c
x = (9-c)/k
factor completely 25d^8 -80d^4 +64
Answer:
Step-by-step explanation:
(5d^4 - 8)^2
This is a perfect square.
Note an exponent multiplied by an exponent is the addition of them so
d^4 X d^4 = d^8
or
(d^4)(d^4)=d^8
Find 160% of 90 ??????
Answer:144
Step-by-step explanation:
Answer:
the answer is 144
160/100×90=144
Help me with This please
Answer:
I believe it is 2787.6
Step-by-step explanation:
Math
can anyone pls tell me the answer to this pls
Answer:
you're lazy count the squares
Step-by-step explanation:
i think i counted 73. You can count the squares again. Then that is the area cm^2
the perimeter i counted 64
Count the edges of the squares and you'll get perimeter. I counted roughly so count carefully.
The number of students that earn straight A's decreases by half
each year. Currently there are 20 students who have all A's. Write
an equation to represent this scenario.
Step-by-step explanation:
20 ÷ 2 = S
S represents the students that have straight A's the next year. You would simply divide the current number of students by 2 and it will give you half the student number you had before. And those are the students who still are getting straight A's.
help, please I would appreciate it.
what is 4/5divied by 1/3
Answer:
it is 3
Step-by-step explanation:
Answer:2.4
Step-by-step explanation:
Graph the function f(x) = x2 – 2x – 8. Which features are correctly stated?
Answer:
C, B
Step-by-step explanation:
C: When you substitute F(0) = -8
B: You just have to find the x value of the lowest point of the graph
Rewrite the following equation in slope-intercept form. y - 8 = -8(x + 2)
Step-by-step explanation:
y - 8 = -8(x + 2)
y - 8 = -8x - 16
y = -8x - 8
The slope-intercept form is y = -8x - 8.
Answer:
y = -8x - 8
Step-by-step explanation:
First distribute the -8 into the parentheses
next get the the y by itself
add 8 to both sides and you get
y = -8x - 8
Question 8 (2 points)
What is the volume of an object with the height of 2cm, a width of 4cm, a mass of 20g, and a length of 5cm?
Answer:
Step-by-step explanation:
.d
The volume of the object is 40cm^3
Let the object in question be a box. The formula for calculating the volume of a box is expressed as:
V = lwhGiven the following paraameters:
length = 5cmwidth = 4cmHeight = 2cmGet the volume of the shape.
V = 5cm * 4cm * 2cm
V = 40cm^3
Hence the volume of the object is 40cm^3
Learn more on volumes here: https://brainly.com/question/10751127
Which statement is true about the numbers marked on this horizontal number line?
A.
0.25 < -0.25
B.
0.25 > -0.25
C.
-0.25 = 0.25
D.
-0.25 > 0.25
Answer:
B.
Step-by-step explanation:
Answer:
The answer to this issssssss surely B
Line AB on Circle A measures 7 cm. What is Circle A's circumference?
Answer:
Step-by-step explanation:
The circumference for a circle is found in the formula
[tex]C=\pi d[/tex]
so if the diamteter is 7, then the circumference is
[tex]7\pi[/tex] or if you are told to round to the nearest hundredth or thousandth, multiply pi in as 3.1415 to get that the circumference is 21.9905 cm
The Davis family is moving, and they estimate that they will need a truck with about 1,250 cubic feet. Which truck do would be best for them to rent?
Peter leaves work and drives 10miles due south he then heads east for 11 miles to reach his home how far is Peter home from where he works round answer to nearest tenths place
Answer:
14.9 miles
Step-by-step explanation:
In the image below, the side of the triangle a, represents; "Peter leaves work and drives 10miles due south".
The side of the triangle b represents; "he then heads east for 11 miles to reach his home"
The distance between his work and home is represented by side c of the triangle.
This is a tight angle triangle, hence pythagoras theorem would be applied in solving it.
This theorem states that the square of the hypotenuse of a right angle triangle is equal to the sum of the squares of the other two sides;
This means we have;
c² = a² + b²
c² = 10² + 11²
c = √(100+121)
c = 14.87
Rounding off to the nearest tenths = 14.9
Write an equation of the line that passes through the given points.
(0,0), (2,6)
Answer:
y=3x
Explanation: Since the line passes through (0,0), the y-intercept is 0. The rate of change is 3, which can be onserved if you you plot these points on a corrdinate graph. Therefore, the equation is y=3x.
-8+4 - 7+9 - 2+(-5)
A)-9
B)-5
C)1
D)7
Answer:
A
Step-by-step explanation:
the answer is a 100% no cap
Suzanne bought 50 apples at the orchard. She bought 4 times as many red apples as green apples. How many more red apples than green apples did Suzanne buy?
Step-by-step explanation:
Let x be the number of Green apples bought.
Then 4x is the number of Red apples bought.
We have x + 4x = 50, so x = 10.
Since there are 10 green and 40 red apples, 40 - 10 = 30 more red apples than green apples.
Lught herzu
[tex] {x}^ {2} - xy + {x}^{2} - xy [/tex]
Answer:
sry I can't understand how to do this question
i will add you to brainlist if you get the answer right promise
Answer:
B
Step-by-step explanation:
solver r=1/2m2p for p
Answer:
p= 2r/m^2
Step-by-step explanation:
Can someone help me with this question? Will give brainliest :) (valid answers only or you’ll be reported)
Answer:
...
Step-by-step explanation:
Lupita bought 7 pounds of pretzels at a local wholesaler for $16.80. Her friend Charles bought 5 pounds of pretzels at the supermarket for $12.75. Charles thinks he got the better deal because $12.75 is less than $16.80. 8a. Is Charles's reasoning correct? Explain why or why not.
Answer:
Charly has the better buy
Step-by-step explanation:
The unit cost is
=16.8/7
=$2.4
Her friend Charles bought 5 pounds of pretzels at the supermarket for $12.75
Unit cost
=12.75/5
=$2.55
Charly got the best deal because the unit cost per item is less than that of the friend
The blue figure is a translation of the black image. Write a rule to describe the translation.
it has gone up 4 lines and left -2 making it go for a (4,-2)
Did you know you could rate your own questions?
whyyyyy like whattt
lol that's cool because i didn't know either
1. Factorize :
(a) 2x + 6
Answer:
2(x+3) is the correct answer
Step-by-step explanation:
2 × x=2x 2×3=6
2x+6
2(x+3)
Answer:
2x=6/:2
x=3
that's the answer
What is the image point of (2, 4) after a translation left 4 units and down 1 unit?
Answer:
the answer is (-2,3)
Step-by-step explanation:
when moving to the left you going across the x axis 4 times and going down once om the u axis
It's timed plzzz help!!!
Answer:
2A/p
the last option
Step-by-step explanation:
gl!!!
Find the slope between the points (-3, -5) and (7, -1)
Answer:
m = 2 /5
Step-by-step explanation:
Answer:
k
Step-by-step explanation:
6 is the slope im pretty sure. i followed the slope formula rise over run
( y2-y1 / x2-x1 ) and got 6