5(-2)² - 9
First, solve the one in the bracket which is -2 × -2 which gives us =4
5(4) - 9
Then, multiply 5 with 4 so
20 - 9
Then you'll get 11
Joe overheard his father complaining about having to pay $300 in interest in just one year. The simple annual interest rate was 16%. How much money did Joe’s father borrow?
Answer:
$1,875
Step-by-step explanation:
Interest = Principal x Rate x Time
Principal = amount of money borrowed
I = $300
r = 16% or .16
t = 1 (year)
300 = .16P
300/.16 = P
P = $1,875
How can you find the unit rate?
Answer:
Understand unit rate. The unit rate is a special type of ratio in which the two separate measurements are compared and expressed as a quantity of one.
Look at the data. The problem must have two terms, and you must be asked to determine how much of one term exists per unit of the other term.
Rewrite the data as a division problem.
Step-by-step explanation:
anyone can u plz solve this
Answer:
18x²y - 8a + 14bStep-by-step explanation:
The Sum:
3x²y - 5a + 4b + (-9x²y - 7b + 4a) = 3x²y - 9x²y - 5a + 4a + 4b - 7b = -6x²y - a - 3bThe difference:
3x²y - 5a + 4b - (-9x²y - 7b + 4a) =3x²y + 9x²y - 5a - 4a + 4b + 7b =12x²y - 9a + 11bSubtract the sum from the difference:
12x²y - 9a + 11b - (-6x²y - a - 3b) = 12x²y + 6x²y - 9a + a + 11b + 3b =18x²y - 8a + 14bAnswer:
See below.
Step-by-step explanation:
First Let's us find the sum.
[tex]\sf\longmapsto \: 3x²y - 5a + 4b + (-9x²y - 7b + 4a)[/tex]
[tex]\sf\longmapsto3x²y - 9x²y - 5a + 4a + 4b - 7b [/tex]
[tex]\sf\longmapsto \: -6x²y - a - 3b[/tex]
Now, let's us find the difference (minus)
[tex]\sf\longmapsto \: 3x²y - 5a + 4b - (-9x²y - 7b + 4a)[/tex]
[tex]\sf\longmapsto3x²y + 9x²y - 5a - 4a + 4b + 7b[/tex]
[tex]\sf\longmapsto \: 12x²y - 9a + 11b[/tex]
Now minus the sum from the difference.
[tex]\sf\longmapsto \: 12x²y - 9a + 11b - (-6x²y - a - 3b)[/tex]
[tex]\sf\longmapsto \: 12x²y + 6x²y - 9a + a +11b + 3b[/tex]
[tex]\sf\longmapsto \: 18x²y - 8a + 14b[/tex]
Therefore,[tex]\sf\longmapsto \: 18x²y - 8a + 14b[/tex] is the answer.
Can y’all please help?
Answer:
7
Step-by-step explanation:
You subtract 220 - 129 = 91 then divide by 13
Choose the correct item from each drop-down menu to factor the trinomial 3x2 + 13x – 10 by grouping.
The factors of the given trinomial are (3x-2)(x+5).
What is trinomial?Trinomial is a polynomial having 3 terms. At least one variable and one operation (addition, subtraction, multiplication, division) must be present in an algebraic expression.
Given is a trinomial 3x²+13x-10, we need to factorize it,
So,
= 3x²+13x-10
To factorize a trinomial, we do find the product of the product of a and c (ax²+bx-c) and find its two factors so that we can add or subtract so that we can find the middle term (b) of the trinomial,
Here,
a = 3, c = 10
a × c = 30
Now,
15 and 2 are the factors of the 30, also 15 - 12 = 13 which is the middle term of the trinomial,
Therefore,
3x²+13x-10 = 3x²+15x-2x-10
= 3x(x+5)-2(x+5)
= (3x-2)(x+5)
Hence, the factors of the given trinomial are (3x-2)(x+5).
Learn more about trinomial, click;
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8. Oscar purchased two hamburgers for 55.75 X each and two milkshakes for $5,40 each including sales tax. After paying, he received $0.70 back. How much money did Oscar give the sales clerk?
A. $12.85
B. $25.00
C. $23.60
D. $11.45
Answer:
I may not be right but I think its C. or D.
Step-by-step explanation:
Sorry i Don't have a good explanation
Find the value of x in the triangle shown below.
a)=5
b)x=\/7
c)x = 7
d)x = 25
If a triangle has an area of 192 mm2, and the
height measures 12 mm, what is the measure
of the base?
Answer:32mm
Step-by-step explanation:
area of triangle = 1/2 *base * height
192mm2 = 1/2 *b* 12mm
192 =6b
base=192/6
base= 32mm
rewrite the equation in slope-intercept form y + 4 = -2 (x-5)
Answer:
y = -2x + 6
Step-by-step explanation:
Slope intercept form: y = mx +b
y + 4 = -2(x - 5)
y + 4 = -2x + 10
y = -2x + 10 - 4
y = -2x + 6
A swimming pool is being constructed so that it is the upper part of aninverted square-based pyramid.a. Calculate H.b. Calculate the volume of the pool.c. How many 6 m3bins will be required to take the dirt away?d. How many litres of water are required to fill this pool?e. How deep is the pool when it is half-filled?
Answer:
2
Step-by-step explanation:
6 sides by 6 adding 4x4=12
3x3x-5y-7=0
X=2k-1.
Y=k
Answer:
Step-by-step explanation:
We know that the system of equations
a
1
x+b
1
y=c
1
a
2
x+b
2
y=c
2
has infinitely many solutions, if
a
2
a
1
=
b
2
b
1
=
c
2
c
1
Here, a
1
=2,b
1
=3,c
1
=4,a
2
=k+2,b
2
=6,c
2
=3k+2.
Therefore, the given system of equations will have infinitely many solutions, if
k+2
2
=
6
3
=
3k+2
4
⇒
k+2
2
=
6
3
and
6
3
=
3k+2
4
⇒
k+2
2
=
2
1
and
2
1
=
3k+2
4
⇒k+2=4 and 3k+2=8
⇒k=2 and k=2
⇒k=2
Hence, the given system of equations will have infinitely many solutions, if k=2.
I need help with this question
Answer:
b
Step-by-step explanation:
PLEASE HELP WILL MARK BRAINLIEST!
Answer:
2 x 4 − x 3 + x 2 − 9
Step-by-step explanation:
What is
12,4% expressed as a fraction?
Answer:
Well, you first want to find out what it is in decimal form, which in this case is 0.124. Then once you do that, you can convert it to an improper fraction, which would be 124/100, you then can simplify it to convert it into a mixed number, which lands you the final answer of 1 6/25 I hope this helps you! :)
1. (i) Describe the relations pictured below using the following categories: Trend (correlation): Positive (increasing) or negative (decreasing) Strength: Strong or weak
Type: linear, non-linear, no trend
(ii) Draw a line or curve of best fit for those relations that have trends.
Answer:
INCREASING, DECREASING, DECREASING, INCREASING, INCREASING, DECREASING
STRONG, WEAK, WEAK, STRONG, STRONG, WEAK
Step-by-step explanation:
Clay gave four friends seven ball cards
each. How many cards did he give to his
friends?
5(+25)=875
lets see who will get it right
Answer:
X = 150
Step-by-step explanation:
In pic
(Credits: Symbolab)
(Hope this helps can I pls have brainlist (crown)☺️)
Answer:
X=150
Step-by-step explanation:
PLEASEEEE HELP PLZZZZZZZZZZZZZZZZZZZZZZZZZZZ
Answer:
36 and 45
Step-by-step explanation:
I need help ASAP !!!
Answer:
B is it
Step-by-step explanation:
mutltply 2/3 by 42 and then mutltply that product by 10
Answer:
280
Step-by-step explanation:
2/3 * 42 = 28
28 * 10 = 280
Answer: 140 is the answer
Step-by-step explanation:
what is the equation for the line that is perpendicular to the x-axis and passes through the point (4, -7)?
Step-by-step explanation:
perpendicular means to cross at a right angle (90 degrees).
so, any line perpendicular to the x-axis is parallel to the y-axis.
and any line parallel to the y-axis has only a defining x value. all points on that line have the same x value (while any value for y from -infinity to +infinity is valid).
the y-axis itself is
x = 0
the specified point here has an x value of 4.
so, the line we are looking for is
x = 4
to point out : this is NOT a function, because for the same x value we get more than 1 valid y values.
4 cm
15 cm
-
Find volume
Answer:
The answer is 753.98224.
V=πr^2h, so v=pie4^2*15
Therefore, V=πr2h=π·42·15=753.98224
Step-by-step explanation:
The volume = [tex](\frac{22}{7} )(4^{2} )(15)[/tex]
= 754.285714
please give me a brainliest answer
Help please answer Will name Brainliest
Answer:
m2 will be 88
m3 will be 92
m1 will also be 92
Step-by-step explanation:
Opposite angles are equal and 3 and 4 are add upto 180
Which of the following represents a function?
Answer:
B) Graph of an Absolute Value Function
Step-by-step explanation:
A function is a relation in which no two ordered pairs have the same input and different outputs. Whenever you're trying to determine whether a given relation is a function, observe whether each input correspond with exactly one output.
The given table in Option A) is not a function because there are two corresponding y-values for x = 3.
Option C is also not a function because the input value of x = -1 has two output (y-values): -11 and 5.
Option D is also not a function because the input value of 3 has two output values: -5 and 0.
Option B represents a function because each input value has exactly one corresponding output value. A useful technique to use in determining whether a given graph represents a function is the Vertical Line Test. If a vertical line intersects the graph in all places at exactly one point, then the relation is a function.
Attached is an edited screenshot of Option B, where it shows that each blue vertical line has its own corresponding point. This means that the each line crosses the graph at most once. Therefore, the correct answer is Option B.
Answer:
The graph
Step-by-step explanation:
I got it right on plato
Students deliver newspapers and magazines to houses.
One day, they have to deliver 850 newspapers and 1440 magazines.
Each student can deliver either 25 newspapers or 60 magazines in 1 hour.
Each student can only work for 6 hours.
Work out the minimum number of students needed.
Answer:
4 students to deliver magazines and 6 students to deliver newspaper
Step-by-step explanation:
magazine [tex] = 60 \times6 = 360 \\ 850 \div 360 = 4[/tex]newspaper [tex] = 25 \times 6 = 150 \\ 850 \div 150 = 5.6[/tex]The minimum number of students needed is 6.
Given that, in one day students can deliver 850 newspapers and 1440 magazines. Each student can deliver either 25 newspapers or 60 magazines in 1 hour.
What is the unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Now, in 1 hour a student can deliver 25 newspapers, so in 6 hours a student can deliver 25 × 6 =150
So, number of students = 850/150 = 5.66
≈ 6
Now, 60 × 6 =360
So, number of students = 1440/360 = 4
Therefore, the minimum number of students needed is 6.
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Can someone please help-
Answer:
5[tex]\frac{17}{18} }[/tex]
Step-by-step explanation:
plzz help me with this question
Answer:
The answer to this question is C
[tex]y = \frac{3}{2} x + 7 \\ \\ y = \frac{1}{2}x + 1 [/tex]
a temperature recorded in antarctica was -119. the temperature recorded in the Sahara desert was 128. How many degrees warmer is 128 than -119
Answer:
247 degree celcius
Step-by-step explanation:
Here,
Temp diff=Sahara-antarctica
=128-(-119)
=128+119
=247 degree Celcius
Drop a Thanks and mark me as the brainliest:)!
f
2x2 - 7x-4
Simplify
x2 - 5x +4
2x +1
x-1
2x + 1
x+1
2-7x
5x
DONE
Answer:
1. [tex] \frac{2x + 1}{x - 1} \\ [/tex]Step-by-step explanation:
[tex] \frac{ {2x}^{2} - 7x - 4 }{ {x}^{2} - 5x + 4 } \\ \frac{ {2x}^{2} + x - 8x - 4 }{ {x}^{2} - x - 4x + 4} \\ \frac{x(2x + 1) - 4(2x + 1)}{x(x - 1) - 4(x - 1)} \\ \frac{(x - 4)(2x + 1)}{(x - 4)(x - 1)} \\ \frac{2x + 1}{x - 1} \\ [/tex]
The are of the floor in George's square bedroom is 25ft squared. What is the length of his bedroom?If the height of his bedroom is 6ft, how much wall surface does he have in his room?Please answer I'll mark you as a brainlyest
Answer: The bedroom is 5 x 5, since that is the only square measure that would make 25 (5x5) ft^2. Assuming no doors, windows, or pinups, the wall area is 120 ft^2
Step-by-step explanation:
4 walls, with no doors or windows, would be 4x (5*6) = 120ft^2