Answer:
-9
Step-by-step explanation:
BECAUSE 4 x -9 would equal -36. If you added 10 it would then be -26 (NOT -46 because remember, this is the negatives). And there you go :]
[tex]4x+10 = -26 \\\\\implies 2x +5 = -13\\\\\implies 2x = -13 -5 = -18\\\\\implies x = -9[/tex]
Which statement must be true?
Answer:b
Step-by-step explanation:
Discount City gives a 15% discount on all merchandise on Tuesday. The sales tax rate is 5%.
write a function, g(x), to represent the amount of sales tax on the discounted merchandise, x.
The length of the rectangle is 4 meters more than twice the width. The perimeter is 26 m. Find the length and the width.
Answer:
Width = 'x'
Length = 4 + 2x
Perimeter = 2 x Width + 2 x Length
86 = 2(x) + 2(4 + 2x)
86 = 2x + 8 + 4x
2x + 4x = 86 - 8
6x = 78
x = 13
Width = 13 cm
Length = 30 cm
Hope this helps :-)
Step-by-step explanation:
The probability that it will rain tomorrow is dependent on whether or not it is raining today and whether or not it rained yesterday. If it rained yesterday and today, there is a 20% chance it will rain tomorrow. If it rained one of the days, there is a 60% chance it will rain tomorrow. If it rained neither today nor yesterday, there is a 20% chance it will rain tomorrow. Given that it is raining today and that it rained yesterday, write a function rain_days to calculate the probability that it will rain on the nth day after today.
X3divide=8 solve equation for x
Answer:
x = 24
Step-by-step explanation:
(02.05 MC) Two similar triangles are shown on the coordinate grid: A coordinate grid is shown from positive 6 to negative 6 on the x-axis and from positive 6 to negative 6 on the y-axis. A triangle PQR is shown with vertex P on ordered pair negative 4, 2, vertex Q on ordered pair 0, 0, and vertex R on ordered pair 2, 6. A triangle P prime Q prime R prime is also shown with vertex P prime on ordered pair negative 2 and negative 1, vertex Q prime on ordered pair 0 and 0 and vertex R prime on ordered pair 1 and negative 3. Which set of transformations has been performed on triangle PQR to form triangle P′Q′R′? (5 points) Group of answer choices Dilation by a scale factor of fraction 1 over 2 followed by reflection about the x-axis Dilation by a scale factor of 2 followed by reflection about the x-axis Dilation by a scale factor of fraction 1 over 2 followed by reflection about the y-axis Dilation by a scale factor of 2 followed by reflection about the y-axis
Answer:
Step-by-step explanation:
The smaller polygon is half the size of the original polygon
3)A ball is kicked from a height of 2 feet off the ground, after 1 second the ball rea
nes a height
A ball is kicked from a height of 2 feet off the ground. After 1 second the ball reaches a height of 22 feet, and it reaches its maximum height of 38 feet after 3 seconds.
• Write the quadratic equation that represents the height of the ball at any given time
• Find the height of the ball at 4 seconds
Solve the following quadratic equations
Answer:
y = - 2x + (1/2 38) + 2 = y = -2x + 19x + 2 at any second and y = -2x^2 / 2 + 19/2 + 2/2 = - x^2 + 19/2 + 2 = - x (4) + 19/2(4) + 1 = -4+ 38 + 1 = 35 seconds
Step-by-step explanation: We see that 38-2ft = 36ft and y intercept = 2 and then -2x allows us to represent the starting point 2 as -2 (1) to allow a descend to our back to 0 for y one we find y intercept we know - x^2 is our simplified equation and an input into this to find the static and slowed descend back to 0 if you keep inputting at 5 and 6 you see the equation speed up Anyway at (4) substitute = 4 seconds we divide our simplified equation a = -x2 into a b c and divide each by 2 before working out the decline of the equation (as equation still represents all ascending and descending) for the 4th second as the height was already said to be at its max at 38 feet see equation in answer to find 4 as substitute for x
What is the measure of ZABD?
A
32-
Answer:
< ABD = 58°
Step-by-step explanation:
THE answer for <ABD is 58 °
On a bike trip, Erika rides 6 miles in the first 30 minutes and 18 miles in
the next hour. What is her average rate of speed?
Answer: 15
so the first one is 12, the second one is 18 miles per hour so if you average out the mean it's 15
Step-by-step explanation:
12 + 18 = 30 / 2 = 15
Find the area of the shape 1/4 of circle radius of 2
Answer:
≈3.14
Step-by-step explanation:
The formula for finding the area of a circle is:
π·r²
π=approximately 3.14(pi)
r=radius
If you follow this formula,
you would multiply 3.14 by 2², which is basically 2x2.
2x2=4 3.14x4=12.56
But since pi is an irrational number that goes on forever, you usually round pi to the hundredths place, which would be 3.14. But since you're finding the area of 1/4 circle, you need to divide the answer by 4. 12.56/4=3.14, so the answer is about 3.14.
Help me for 100 points yessir thanks you
Answer:
Step-by-step explanation:
Rami runs 34
mile on Monday, and 56
mile on Wednesday.
How many miles did Rami run in all?
810
8 tenths
812
8 over 12
1712
1 and 7 over 12
1812
Answer:
Rami ran 90 miles combined
Step-by-step explanation:
Pre college need help (15)
Answer:
Step-by-step explanation:
y = -4x - 27
y = -4(-9) - 27
y = 36 - 27
y = 9
(-9, 9)
(c). It is well known that the rate of flow can be found by measuring the volume of blood that flows past a point in a given time period. The volume V of blood flow through the blood vessel is V = =[₁2πvr dr where v= K (R² − r²) is the velocity of the blood through a vessel. In the velocity of the blood through a vessel, K is a constant, the maximum velocity of the blood, R is a constant, the radius of the blood vessel and r is the distance of the particular corpuscle from the center of the blood vessel.
(i) If R = 0.30 cm and v= (0.30-3.33r²) cm/s, find the volume.
(ii) Construct and develop a general formula for the volume of the blood flow. [Verify your answer by MATHEMATICA and attach the printout of the commands and output
(i) Given that
[tex]V(R) = \displaystyle \int_0^R 2\pi K(R^2r-r^3) \, dr[/tex]
when R = 0.30 cm and v = (0.30 - 3.33r²) cm/s (which additionally tells us to take K = 1), then
[tex]V(0.30) = \displaystyle \int_0^{0.30} 2\pi \left(0.30-3.33r^2\right)r \, dr \approx \boxed{0.0425}[/tex]
and this is a volume so it must be reported with units of cm³.
In Mathematica, you can first define the velocity function with
v[r_] := 0.30 - 3.33r^2
and additionally define the volume function with
V[R_] := Integrate[2 Pi v[r] r, {r, 0, R}]
Then get the desired volume by running V[0.30].
(ii) In full, the volume function is
[tex]\displaystyle \int_0^R 2\pi K(R^2-r^2)r \, dr[/tex]
Compute the integral:
[tex]V(R) = \displaystyle \int_0^R 2\pi K(R^2-r^2)r \, dr[/tex]
[tex]V(R) = \displaystyle 2\pi K \int_0^R (R^2r-r^3) \, dr[/tex]
[tex]V(R) = \displaystyle 2\pi K \left(\frac12 R^2r^2 - \frac14 r^4\right)\bigg_0^R[/tex]
[tex]V(R) = \displaystyle 2\pi K \left(\frac{R^4}2- \frac{R^4}4\right) [/tex]
[tex]V(R) = \displaystyle \boxed{\frac{\pi KR^4}2} [/tex]
In M, redefine the velocity function as
v[r_] := k*(R^2 - r^2)
(you can't use capital K because it's reserved for a built-in function)
Then run
Integrate[2 Pi v[r] r, {r, 0, R}]
This may take a little longer to compute than expected because M tries to generate a result to cover all cases (it doesn't automatically know that R is a real number, for instance). You can make it run faster by including the Assumptions option, as with
Integrate[2 Pi v[r] r, {r, 0, R}, Assumptions -> R > 0]
which ensures that R is positive, and moreover a real number.
Which of the following is true? (1 point)
Group of answer choices
|–6| < |−7|
|–6| < −7
|–7| < 6
|–7| < |6|
Answer:
A
Step-by-step explanation:
AAAAAAAAAAAAAAA
1.
Graph the equation by translating y = |x|.
y = |x + 1| – 3
A. Graph d
B. Graph b
C. Graph c
D. Graph a
Answer:
C. Graph c
Step-by-step explanation:
I got it correct
can someone help me please?????
Answer:
Step-by-step explanation:
16 cm
3,75 km + 24,1 hm - 8,6 dam =
Answer:
26.578 km
Step-by-step explanation:
24.1 hm is 2.41 km and 8.6 dam is 0.068 km.
Is (4, -2) a solution of the inequality? Why or why not?
Answer:
No
Step-by-step explanation:
The point is not in the shaded section. Every single point on the shaded section is a solution.
how do you solve this answer?
Answer:
by questioning why you post this that are now answered
An electric heater uses 3/5 watts of power each hour. How many watts of power will the heater use in 3 hours
Answer:
9/5 watts
Step-by-step explanation:
3×(3/5) = 9/5
you should multiple the hours (time) with the power
Find the midpoint of the segment with the given endpoints (-5,-9) and (-9,-3)
Answer:
(-7,-6)
Step-by-step explanation:
[tex]x = \frac{ -5 - 9}{2} = - 7 \\ \\ y = \frac{ - 9 - 3}{2} = - 6 \\ [/tex]
80.4 divided by d= 0.804
Answer:
d=100 im pretty sure
Step-by-step explanation:
Help me answer the following pls
Which statements are true about the polynomial function?
f(x)=x4+5x3−x2−5x
Answer:
f(x) divided by (x+5) has a remainder of 0 & f(x) = x^4+5x^3 -x^2-5x
Step-by-step explanation:
I just took the test
The correct statements are -
f(x) = 0 at x = -5 f(x) when divided by (x + 5) gives the remainder zero.What is the general equation of a quadratic equation?The general equation of a quadratic equation is -
[y] = ax² + bx + c
where -
[a], [b] and [c] are constants.
We have the function [tex]x^{4}+5x^{3}-x^{2}-5x\\[/tex].
Refer to the image of the graph of the given polynomial function. We can see that at x = -5, f(x) = 0. Now, x = -5 is the solution of the polynomial f(x), so (x + 5) is a factor of f(x). Hence, f(x) when divided by (x + 5) gives the remainder zero.
Therefore, the correct statements are -
f(x) = 0 at x = -5 f(x) when divided by (x + 5) gives the remainder zero.To solve more questions on GRAPHS, visit the link below-
brainly.com/question/29030795
#SPJ5
The longest amount of time employees can work under Option A or Option B is 20 weeks. After employees work 20 weeks, they can either quit or keep making the same amount they made during Week 20. If an employee plans on quitting after 20 weeks, which payment option gives the greatest total income? Explain
Answer:
to do these word problems, just write equations that reflect the conditions. Once you have the equations, the rest is easy, right? Anyone can solve an equation; the hard part is sorting them out from the words.
So, for #1, we have
A: y = 200 + 50(x-1) = 150+50x
B: y = 200 * 1.10^(x-1)
Now you can easily make a table. See what you can do with the rest of the wowness
Answer:
Option A gives the greatest total income because every week a person keeps working they receive $50 more than the previous week they had worked compared to the $20 more they'd receive with Option B. Option A is also the better option because compared to Option B, the employees would be earning $300 by Week 3 (with Option A) compared to the $260 they'd be earning on the exact same week (with Option B)
Step-by-step explanation:
Employees earn more money working with Option A than with Option B. So, when it comes to quitting on Week 20 they'd have more money with Option A than with Option B.
700+500+100-1000 Giving Brainliest
Step-by-step explanation:
= 700 + 500 + 100 - 1000
= 1200 + 100 - 1000
= 1300 - 1000
= 300
solve 0+x^2-10x+30 by completing the square
Answer:
See answer below
Step-by-step explanation:
x² - 10x + 30 = 0
x² - 10x = -30
x² - 10x + 25 = -30 +25 1/2 of the x term and square that number and add to
both side.
x² -10x + 25 = -5
(x - 5)(x - 5) = -5
[tex]\sqrt{(x-5)(x-5)^2}[/tex] = [tex]\sqrt{-5}[/tex]
If you are in Algebra II , then the answer is not a real answer it will be
(x - 5)² = ±5i
line m contains (6,8) and (-1,2). Line n contains (-1,5) and (5,y). what is the value of y if line m is perpendicular to line n
Answer:
djg
Step-by-step explanation:
mdfgndajfghladjfghadjkfghdafjkkkkkkhkljsfjlk;dsajlkdsajlksdaljkdfjlksdajdkljlsdkjlksdljakljkfsdjlsdljksfadjfas;lkdfj;lksjf;ksjfksajdfsakdjf;laskjfkadj;fsfj
Tell whether the pair of polygons is similar. Explain why or why not.
U
13 ft
R
2.44
120°
86
3.26
8 ft
.
5.2 ft
120°
P
13
2.4 ft
W
9514 1404 393
Answer:
not similar
Step-by-step explanation:
Similar polygons have all corresponding angles congruent, and corresponding sides proportional.
The sides lengths guarantee the polygons are parallelograms, so one pair of angles being congruent is sufficient to ensure that all corresponding angles are congruent.
The ratio of side lengths in the left polygon is 13/8, and the ratio of side lengths in the right polygon is 5.2/2.4 = 13/6. These are different ratios, so the corresponding sides are NOT proportional.
The figures are NOT SIMILAR.
