Answer:
it helps us to add faster bc we can regroup numbers when we add. in the associative property, the order of the numbers don't change, only the grouping does
Step-by-step explanation:
Answer:
Did you know that the associative property can help us solve problems faster? ... According to the associative property, we can regroup the numbers when we add, and we can regroup the numbers when we multiply.
Step-by-step explanation:
The square below represents one whole
Answer:
Fraction: 23/100
Decimal: 0.23
Percent: 23%
Step-by-step explanation:
Hope this helps!
A rectangle has length 4 inches and width 2 inches. If the length and width of the rectangle are each reduced by 50 percent, by what percent will the area of the rectangle be reduced?
Answer: 25%
Step-by-step explanation:
Given: A rectangle has length 4 inches and width 2 inches.
Area = Length x width
= 4 inches x 2 inches
= 8 square inches
If length is reduced by 50% , then length [tex]=0.5\times4=2\text{ inches}[/tex]
If width is reduced by 50% , then length [tex]=0.5\times2=1\text{ inch}[/tex]
Reduced area = (reduced length) x (reduced width)
= 2 inches x 1 inch
= 2 square inches
The percentage of the area of the rectangle be reduced :-
[tex]\dfrac{\text{Reduced area}}{\text{Original area}}\times100 \\\\=\dfrac{2}{8}\times100\% \\\\=25\%[/tex]
Hence, the percent of the area of the rectangle be reduced = 25%
Draw the line and write an equation.
Line where the slope is 0, y-intercept is 5.
Complete the equation below
y=
Use x as your variable.
Use the remainder theorem to determine if x = 4 is a zero of the following polynomial and find the quotient and the remainder
p(x) = x2 + 11x - 60
ОА.
Yes, x = 4 is a zero of the polynomial
The quotient is x + 15, and the remainder is 0.
ОВ.
No, x = 4 is not a zero of the polynomial
The quotient is x + 15, and the remainder is 0
OC Yes x = 4 is a zero of the polynomial.
The quotient is x + 7, and the remainder is 0
D
No, x = 4 is not a zero of the polynomial.
The quotient is x + 7, and the remainder is -88
Given:
The polynomial is
[tex]p(x)=x^2+11x-60[/tex]
To find:
Whether x = 4 is a zero of the given polynomial by remainder theorem and find the quotient and remainder.
Solution:
According to the remainder theorem, if (x-c) divides a polynomial p(x), then the remainder is p(c).
Divide the polynomial by (x-4) and check whether the remainder p(x)=0 at x=4.
Putting x=4 in the given polynomial, we get
[tex]p(4)=(4)^2+11(4)-60[/tex]
[tex]p(4)=16+44-60[/tex]
[tex]p(4)=60-60[/tex]
[tex]p(4)=0[/tex]
Since, remainder is 0, therefore, (x-4) is a factor of p(x) and x=4 is a zero.
Now, on dividing p(x) be (x-4) we get
[tex]\dfrac{x^2+11x-60}{x-4}=\dfrac{x^2+15x-4x-60}{x-4}[/tex]
[tex]\dfrac{x^2+11x-60}{x-4}=\dfrac{x(x+15)-4(x+15)}{x-4}[/tex]
[tex]\dfrac{x^2+11x-60}{x-4}=\dfrac{(x+15)(x-4)}{x-4}[/tex]
[tex]\dfrac{x^2+11x-60}{x-4}=x+15[/tex]
The quotient is x+15 and remainder is 0.
Therefore, the correct option is A.
ANWSER THIS FAST PLZZZ
Answer:
- 7/11 = 0.636363
- 18/25 = -0.72
help i’ll give brainly i’m being timed
Answer: 18 and 37
Step-by-step explanation:
The answers should be 18 and 37, I am very sorry if these answers are incorrect.
what is the probability of you picking a red apple from a bag of green apples
Answer:
0%
Step-by-step explanation:
0% because there are no red apples in a bag of green apples.
Therefore it is impossible to pick a red apple.
The local take out pizza place or 40 plain pizzas last week they sold 65% more plain pizzas this week than last week how many plain pizzas do they sell this week
Answer:
They sold a total of 66 pizzas.
Step-by-step explanation:
65% of 40 = 26
40 + 26 = 66 pizzas
Mark as #Brainliest !
#LearnWithBrainly
Heather paid $2,022.30 for a computer. If the price paid includes a 7% sales tax, which of the following equations can be used to determine the price of the computer after tax? (Let x represent the cost of the computer and y represent the total cost after tax.)
Answer:
The equation should be
2,022.30 x .07= x
X+2022.30= final sale price
Step-by-step explanation:
What is the distance between -8/5 and -3/5
A.-1
B.1
C.11/5
D. -11/5
Answer:
1
Step-by-step explanation:
Subtract the two numbers and take the positive value ( since distance is positive)
-8/5 - (-3/5)
-8/5 + 3/5
-5/5
-1
Taking the positive value, 1
Here’s picture. What’s the value of x ?
What is the solution to the equation One-fourth x + 2 = negative StartFraction 5 Over 8 EndFraction x minus 5? x = negative 8 x = negative 7 x = 7 x = 8
Answer:
i think its -8
Step-by-step explanation:
Which graph best describes a system of equations that has no solution
pls help me with this question....
Section 1
Answers:
1.6962 = 1.70 to 2 d.p. 0.007395 = 0.007 to 3 d.p. 0.4247 = 0.425 to 3 d.p. 0.007395 = 0.0074 to 4 d.p.-----------------------------
Explanation:
The abbreviation d.p. means decimal places
When rounding to 2 decimal places, we look at the digit in the third decimal place value slot (thousandths place). If the value is 5 or larger, then we round up. In the case of 1.6962, the second 6 tells us to round 1.69 up to 1.70
Something like 0.4247 does not round up because that second 4 is not 5 or larger. So we just are left with 0.42
The same logic applies to three decimal places, but you'll look in the fourth slot this time.
===================================================
Section 2
Answers:
32549 = 32500 to 3 s.f. 909520 = [tex]91\overline{0}000[/tex] to 3 s.f. (note the overline bar) 32549 = 32550 to 4 s.f. 909520 = 909500 to 4 s.f.-----------------------------
Explanation:
Recall that for a number like 32500, the 0s are not significant. This is because we can write that as 3.25 * 10^4 to convey the same idea. The only significant figures are 3, 2 and 5.
So when rounding 32549 to 3 sig figs, we just pick on the three left most values, and the rest go to 0. The 325 does not round up to 326 because the '4' isn't 5 or larger. Put another way: 32549 is closer to 32500 than it is to 32600
When rounding 909520 to three sig figs, it turns into [tex]91\overline{0}000[/tex]. The line over the first '0' tells us that zero is significant. Without this bar, the zero would be considered not to be significant. The 9095 is closer to 9100 than it is to 9000, so that's why we rounded up.
If the temperature outside increases by 3 1/2 degrees every 1 1/2 hours, by how much will the temperature increase after 4 hours?
please answer in fractions.
Part 1:
What is the rate per hour of the temperature increase?
Part 2:
How much will the temperature increase after 4 hours?
Answer:
2 1/3 ; 9 1/3
Step-by-step explanation:
Given that:
Outside temperature increases by 3 1/2 degrees every 1 1/2 hours
The rate per hour of temperature increase will be :
Let rate per hour = x
3 1/2 = 1 1/2
x = 1
Cross multiply :
1 1/2 * x = 3 1/2 * 1
3x/2= 7/2
Multiply both sides by 2/3
3x/2 * 2/3 = 7/2 * 2/3
x = 14/ 6
x = 2 2/6
x = 2 1/3
Hence, outside temperature increases at the rate of 2 1/3 degrees per hour.
2.) Temperature increase after 4 hours :
(Temperature rate per hour * number of hours)
(2 1/3) * 4
(7/3) * 4
28 / 3
= 9 1/3
Hence, temperature increase after 4 hours = 9 1/3
2 1/3 ; 9 1/3
Step-by-step explanation:
Given that:
Outside temperature increases by 3 1/2 degrees every 1 1/2 hours
The rate per hour of temperature increase will be :
Let rate per hour = x
3 1/2 = 1 1/2
x = 1
Cross multiply :
1 1/2 * x = 3 1/2 * 1
3x/2= 7/2
Multiply both sides by 2/3
3x/2 * 2/3 = 7/2 * 2/3
x = 14/ 6
x = 2 2/6
x = 2 1/3
Hence, outside temperature increases at the rate of 2 1/3 degrees per hour.
2.) Temperature increase after 4 hours :
(Temperature rate per hour * number of hours)
(2 1/3) * 4
(7/3) * 4
28 / 3
= 9 1/3
Hence, temperature increase after 4 hours = 9 1/3
I know because i am in the future
5 x 5^2 leaving answer in index notation
In multiplication, the exponents add up.
5.5²=5¹.5²=5³
Note:
In the extraction ,the exponents remove.
5¹⁰÷5³=5⁷
Answer:
5³
Step-by-step explanation:
Using the rule of exponents
[tex]a^{m}[/tex] × [tex]a^{n}[/tex] = [tex]a^{(m+n)}[/tex]
Given
5 × 5²
= [tex]5^{1}[/tex] × 5²
= [tex]5^{(1+2)}[/tex]
= 5³ ← in index form
= [ 125 ]
Factor completely
2w2 -7w-4
I’m only asking for help because I’m failing in everything. None of my family is good at math and I’m really just trying to pass tenth grade!
Answer:(2w +1) (w-4)
Solution in pic below
(HELP) solve the system by substitution. check your answer.
4x+5y=7
x=5y+8
how can you remember slope? in a creative way
Answer:
Step-by-step explanation:
dont have a creative way but i just remember rise over run or [tex]\frac{rise}{run}[/tex]
hope this helps <3
Answer:
Slope is often denoted by the letter m; there is no clear answer to the question why the letter m is used for slope, but its earliest use in English appears in O'Brien (1844) who wrote the equation of a straight line as "y = mx + b" and it can also be found in Todhunter (1888) who wrote it as "y = mx + c".
Step-by-step explanation:
hope this helpes, i didn't really know how to answer.
The circle below represents one whole what percent is represented by the shaded area
it is 25% hehehheheheheh
Answer:
one fourth
Step-by-step explanation:
it is split into fourths. if one is shaded, it is one fourth
Tell whether the sequence is arithmetic if it is identify the common difference. -7, -3, 1, 5
Step-by-step explanation:
If you take any number in the sequence then subtract it by the previous one, and the result is always the same or constant then it is an arithmetic sequence.
d=-7+3=-3-1=1-5=-4
so it is an arithmetic sequence
hope it helps
can you answer this
Answer:
More than likely it looks like a right angle or 90 degrees so the answer is mostly 51.
Step-by-step explanation:
90 - 39 = 51
People attending a football game either supported the home team or the visiting team. If 714 of the people attending supported the home team and 2686 supported the visiting team, what percentage supported the home team?
Answer:
21%
Step-by-step explanation:
First find the whole, the total number of attendees:
714 \text{ home} + 2686 \text{ visiting} = \color{orange}{3400} \text{ total attendees}
714 home+2686 visiting=3400 total attendees
Method 1: Set up a proportion
Set up an equation of the form:
\frac{\color{red}{\text{part}}}{\color{orange}{\text{whole}}}=
whole
part
=
\,\,\frac{\color{blue}{\text{percent}}}{100}
100
percent
Assign the variable xx to the unknown value:
\color{blue}{x}=
x=
\,\,\color{blue}{\text{percent}}
percent
The question asks what \textit{percent}percent of all the attendees is 714
Substitute the known values with the numbers given in the problem, and the unknown value with xx:
\frac{\color{red}{714}}{\color{orange}{3400}}=
3400
714
=
\,\,\frac{\color{blue}{x}}{100}
100
x
Solve for xx:
100\cdot\color{red}{714}=
100⋅714=
\,\,\color{orange}{3400}\cdot\color{blue}{x}
3400⋅x
Cross multiply
\frac{71400}{3400}=
3400
71400
=
\,\,\frac{3400x}{3400}
3400
3400x
Divide both sides by 100
\color{blue}{21\%}=
21%=
\,\,\color{blue}{x}
x
Simplify
Method 2: Find percent directly
\text{Find \(714\) out of \(3400\) as a decimal:}
Find 714 out of 3400 as a decimal:
\frac{\color{red}{714}}{\color{orange}{3400}}=
3400
714
=
\,\,0.21
0.21
\text{Convert decimal to percent:}
Convert decimal to percent:
0.21\times100=
0.21×100=
\,\,\color{blue}{21\%}
21%
hey yall I'm bout to post 5 questions in like 3 minutes 100 points plus brainliest but I need step by step explanation plz and thank you
Answer:
what do you mean lol
Step-by-step explanation:
Answer:
ok
Step-by-step explanation:
ill be there
The function f is defined by f(x) = k/x+3, where k is a constant. Find k, if the graph of f passes through the point (3/4,0).
k=
Answer:
The value of k if the graph of f passes through the point (3/4,0) is [tex]\mathbf{k=-\frac{9}{4}}[/tex]
Step-by-step explanation:
We are given the function: [tex]f(x)=\frac{k}{x}+3[/tex] where k is constant.
We need to find k, if the graph of f passes through the point (3/4,0).
So, graph passes through point (3/4,0) we have x=3/4 and y =0
Putting value of x in given function we can find value of x
We have f(x)=0, and x= 3/4
[tex]f(x)=\frac{k}{x}+3\\0=\frac{k}{\frac{3}{4} }+3[/tex]
Using fraction rule: [tex]\frac{a}{\frac{b}{c} }=\frac{a.c}{b}[/tex]
[tex]0=\frac{4k}{3 }+3\\Taking \ LCM\\0=\frac{4k+9}{3}\\3*0=4k+9\\0=4k+9\\4k=-9\\k=\frac{-9}{4}[/tex]
So, The value of k if the graph of f passes through the point (3/4,0) is [tex]\mathbf{k=-\frac{9}{4}}[/tex]
Please I need help ASAP
If you have $20 for a $3.00 snack and the rest to play $2.00 arcade games. At most how many games can you play ? (Setup & solve an inequality)
Answer:
8
Step-by-step explanation:
that's the most games you can play!!
hope that helps
Betty is making a quilt made of various patterns . She buys 3 sheets of fabric that each have an area of 30 square feet. She cuts them up into sections that are each 2/5 of a square foot . How many sections will she have total
Answer:
She will have 12 sections per fabric and 36 sections in all
Step-by-step explanation:
Betty buy 3 fabrics of 30 ft²
If she cut each to 2/5 of 1 ft²
Then she will have
30 × 2/5
= 6 × 2
= 12
She will have 12 for each fabric and for the 3 fabrics, she will have
12 × 3 = 36
Step-by-step explanation:
Answer:
225 sections
Step-by-step explanation:
Each fabric has an area of 30 sq ft.
All 3 fabrics have a total area of 3 * 30 sq ft = 90 sq ft.
Each sections has an area of 2/5 sq ft.
number of sections = total area of fabric / area of each section
90/(2/5) = 90 * 5/2 = 450/2 = 225
Answer: 225 sections
Find the determinant of the following matrix. [1 -2] [3 4]
Answer:
10
Step-by-step explanation:
[1 -2]
[3 4]
We can obtain the determinant of the above matrix by doing the following:
Determinant =(1 × 4) – (3 × –2)
Determinant = 4 – – 6
Determinant = 4 + 6
Determinant = 10
Thus, the determinant of the above matrix is 10
Zane has already walked 15 kilometers this week, plus he plans to walk 2 kilometers during each trip to school. How many trips will Zane have to make in all to walk a total of 41 kilometers?
Step-by-step explanation:
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Answer:
Step-by-step explanation:
" role="presentation" style="outline: 0px; display: inline-table; line-height: 0; text-indent: 0px; text-align: left; text-transform: none; font-style: normal; font-weight: normal; font-size: 17.017px; letter-spacing: normal; overflow-wrap: normal; word-spacing: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; position: relative;">√x=5x=5
i need help im in the zoom with my tech
Answer:
67 to the power of 14
Step-by-step explanation: