Answer: The percentage increase in the area of the circle is 16.64 % when radius is increased by 8 %.
1. Evaluate 3•7 - 1.
о o
20
21
18
-5
Need help with math question. Please. I’ll give 5 stars
Answer:
The domain is -11 < x < 4 or in interval notation it is (-11, 4).
Step-by-step explanation:
The domain is the set of possible values of x.
Here the open circles at each end mean that these values are not included.
The height, h, in feet of a ball above the ground is given by h= -16t^2+64t+80, where t is the time in seconds. How long does it take the ball to hit the ground?
A) 3 seconds
B) 4 seconds
C) 5 seconds
D) 6 seconds
Answer:
It is 5 seconds option C
Step-by-step explanation:
When the ball would hit the ground, h would reduce 0.
We can equate the R.H.S to 0.
∴ 0= -16t²+64t+80
0 = t² - 4t - 5 (dividing both sides by -16)
0 = t²+t - 5t -5 (by splitting the middle term)
0 = t ( t+1) -5 (t+1)
0= (t-5) * (t + 1)
when t-5=0 ; when t+1=0
t =5 ; t= -1 time cannot be -ve
∴ t= 5 seconds
Hope this helps you.
Answer:
C) 5 seconds
Step-by-step explanation:
Given equation:
[tex]h=-16t^2+64t+80[/tex]
where:
h = height of a ball above the ground (in feet).t = time (in seconds).The ball hits the ground when the height is zero.
Therefore, substitute h = 0 into the given equation and solve for t.
[tex]\begin{aligned}\implies -16t^2+64t+80 & = 0\\-16(t^2-4t-5) & = 0\\t^2-4t-5 & = 0\\t^2-5t+t-5&=0\\t(t-5)+1(t-5)&=0\\(t+1)(t-5)&=0\\\end{aligned}[/tex]
Apply the zero-product property:
[tex]\implies t+1=0 \implies t=-1[/tex]
[tex]\implies t-5=0 \implies t=5[/tex]
As time cannot be negative, t = 5 only.
Therefore, it takes 5 seconds for the ball to hit the ground.
what is the function of f(x)=5•2^x
Answer:
I have the answer to the problem just not in words, but if you wanna listen to my opinion, I would say Linear
what is seven and nine tenths in standard form
Answer:
0.9 that is how you write nine-tenths in standard form
HELPPP! FASTTTT PLEASE PDJWIJPDHPHDPIHSPDHBSPIBSBPSIBPIBSOISBOBIBSOIBSOIBSOIBISOISBOISG
Answer:
B
Step-by-step explanation:
Look how point D moved to point D". It went 7 units left and 1 unit down. All points in ABCD moved the same way to A"B"C"D. It's a translation of 7 units left and 1 unit down.
Answer: B
Please help me with the explanation! I need to remember how to do this
Answer:
like what do you want to remember.
Can anyone help me with my math problem?
Step-by-step explanation:
1296 students of a school are arranged in a square formation. How many rows did they make??Solution
Number of rows = number of columns = r
:: r × r = 1296
In other words,
r square 2 = 1296
now solve in prime factorization,
the answer is 36
HELP WILL GIVE BRAINLIEST
Answer:
the scale factor is 1/2
x=2.5
y=6.5
Factorize mn-nq+mo-oq
mn-nq+mo-oq
n(m-q) + o(m-q)
final ans:(n+o) (m-q)
Sadie is doing weekly payroll for her employees at her car dealership. Her employees make a base salary plus commission. The function LaTeX: E(x)=\mid 5- \frac{6x}{2}\mid models the way Sadie calculates the commission where x represents the number of cars the employee sells. If one of her employees sells 7 cars, how much commission will they make?
The commission function is an illustration of the absolute functions
The commission for the sales of 7 cars is 16
The function is given as:
[tex]\mathbf{E(x)=\mid 5- \frac{6x}{2}\mid}[/tex]
When an employee sells 7 cars, we have:
x = 7
So, the equation becomes
[tex]\mathbf{E(x)=\mid 5- \frac{6\times 7}{2}\mid}[/tex]
Simplify
[tex]\mathbf{E(x)=\mid 5- 3\times 7\mid}[/tex]
[tex]\mathbf{E(x)=\mid 5- 21\mid}[/tex]
Simplify
[tex]\mathbf{E(x)=\mid- 16\mid}[/tex]
Remove absolute brackets
[tex]\mathbf{E(x) = 16}[/tex]
Hence, the commission for the sales of 7 cars is 16
Read more about absolute functions at
https://brainly.com/question/1389494
John is 5 feet 10 inches tall. There are 2.54 centimeters in 1 inch.
What is John’s height in centimeters?
25.4 cm
⊝
17.78 cm
⊝
177.8 cm
⊝
152.40 cm
Answer:
It would be 177.8 cm!!
Step-by-step explanation:
Answer:
177.8 CM
Step-by-step explanation:
70 x 2.54
= 177.8
I need help with my homework, its due today
Answer:
n=-4
The number is -4
Step-by-step explanation:
The equation is (n/2)-9=5+4n
n-18=10+8n
7n=-28
n=-4
Hi, I need help with this math question .
The image posted below
(6, 8). Substitute the numbers in for x and y and then solve the equation. The coordinates are (x, y).
Answer:
(6,8)
Step-by-step explanation:
[tex]\\ \sf\longmapsto y=\dfrac{1}{3}x+2[/tex]
Put the value[tex]\\ \sf\longmapsto 8=\dfrac{1}{3}(6)+2[/tex]
[tex]\\ \sf\longmapsto 8=2+2[/tex]
[tex]\\ \sf\longmapsto 8\neq 4[/tex]
What is the missing value?
Answer:
15
Step-by-step explanation:
The pattern is times 3.
21 ÷ 7 = 3
27 ÷ 9 = 3
To solve this, do 5 x 3.
Therefore, 15 would be your answer.
-kiniwih426
what is the approximate value for 683 divided by 22
Answer:
31.04
Step-by-step explanation:
Multiples of 18 less than or equal to 216
How to solve linear equation
You can use elimination and substitution method
EXAMPLE :
Given :
2x + y = 5
3x - 5y = 1
2x + y = 5 (× -5)
3x - 5y = 1
__________
-10x - 5y = - 25
3x - 5y = 1
____________ _ (elimination)
-13x = - 26
x = - 26/-13
x = 2
Substitution x = 2 to 2x + y = 5 :
2x + y = 5
2(2) + y = 5
4 + y = 5
y = 5 - 4
y = 1
Someone Smart Help With Math!
Answer:
-48. You multiply the figures
Answer:
B. -48
Explanation:
Simply -16 multiplied by 3. When one negative number is multiplied, the product is a negative. When two negative numbers are multiplied together, the product is positive.
what is the answer for this 30≤x≤60.
Step-by-step explanation:
if you want it on a number line put a closed circle around the 30 and draw the line till 60 and put a closed circle.
A line with a slope of 1/3 passes through the point (-8,9). What is its equation in point-slope form?
Answer:
y - 9 = 1/3 (x+8)
Step-by-step explanation:
point slope form is y - y1 = m (x - x1)
Bia tem 1230 reais, ganhou mais 500 reais, com quantos reais ela ficou?
Answer:
Bia ficará com 1730 reais.
Step-by-step explanation:
1230+700=1730
The ______ is the number that is being repeated as a factor.
2. A baseball game has a total of 9 innings. In each inning, there are 2 teams that each have
to make 3 outs in order for the inning to be complete. Which statement is true?
9
A. Each out is of all the outs in a 9-inning baseball game.
B. Each out is of all the outs in a 9-inning baseball game.
C. Each out is of all the outs in a 9-inning baseball game.
27
D. Each out is
of all the outs in a 9-inning baseball game.
18
Using proportions, it is found that each out is [tex]\frac{1}{54}[/tex] of all the outs in a 9-inning baseball game.
Supposing a 9-inning baseball game, each team has the right to 27 outs.
Two teams, thus, there are [tex]2 \times 27 = 54[/tex] outs.
This means that each out in a game [tex]\frac{1}{54}[/tex] of all the outs in a 9-inning baseball game.
A similar problem is given at https://brainly.com/question/24342347
Which table represents a linear function.
Answer:
The third table represents a linear function
Step-by-step explanation:
The first table is not a function
The second table is not linear
The fourth table is not a function
Is 53.7. 104 written in scientific
notation? Why or why not?
Assuming the expression is [tex]53.7 * 10^{4}[/tex].
Answer:
No
Step-by-step explanation:
Scientific notation is where a number is written in the form [tex]a*10^{b}[/tex] where [tex]a[/tex] and [tex]b[/tex] are integers AND [tex]1<=a<10[/tex].
In our expression, [tex]53.7>=10[/tex], so it doesn't satisfy the requirements of scientific notation.
So, the answer is [tex]\boxed{no}[/tex], it's not written in scientific notation.
The endpoint coordinates of AB are A(2, -10) & B(12, 5). Find the coordinates of the point that is 2/5 from A to B.
Step-by-step explanation:
Find the distance between points A and B by the formula:[tex]\large \boldsymbol {\sf D=\sqrt{(x_1-x_2)^2+(y_1+y_2)^2} }[/tex] [tex]\large \boldsymbol{} \sf D=\sqrt{(2-12)^2+(-10-5)^2} =\sqrt{100+225} =\boldsymbol {\sqrt{325}=5\sqrt{13} }[/tex] By the condition we are told to find 2/5 the distance between points A and B [tex]\sf \large \boldsymbol {} \dfrac{2}{5} \cdot D=5\sqrt{13} \cdot \dfrac{2}{5} =\boxed{\sf 2\sqrt{13}}[/tex] We can also find the distance between them through the Pythagorean theorem we will complete a right triangle AB²=AC²+BC² AB=√AC²+BC² Where AC=10 ; BC=15 AB=[tex]\boldsymbol {\sf \sqrt{15^2+10^2}=\sqrt{325}=5\sqrt{13} }[/tex] Then 2/5* AB=2[tex]\sqrt{13}[/tex]3(2x+9)= -10 + 31
x equal
(simplify your answer)
Answer:
the answer is x = -1
so yea
Answer:
very easy first open the bracket and then Bodmas
simplify. 8c³d²/4cd²
Answer:
2c exponent 4 d exponent 4
which of the following best describes a sequence?
A.a linear equation
B.a list of numbers
C.a procedure for getting the answer
D.events that happen in definite order
Answer:
b.a list of numbers
Step-by-step explanation:
bbbbbbbbbbbbbbbbbb