Answers
Answer:
a. 50
b. 20
hope this helps
Related Questions
Taya is on the track team. For practice, she runs 2.5 miles each day. At the
end of 14 days, how many total miles will Taya run?
Answers
Answer:
35 miles
Step-by-step explanation:
Answer:
35 miles
Step-by-step explanation:
2.5 x 14
what is a polynomial expression?
Answers
Step-by-step explanation:
a polynomial is an expression consisting of variables (also called indeterminates) and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables. An example of a polynomial of a single indeterminate x is x2 − 4x + 7.
please help me with this
Answers
Answer:
i think its the second one
Step-by-step explanation:
You see a silk shirt for $95 there is a 25% discount what is the discount
Answers
Answer:
71.25
Step-by-step explanation:
Answer:
I don't know sorry
maybe try looking it up
I really don't know I'm so sorry
Step-by-step explanation:
HELP!!!!!!!!!!!!! PPPPPPLLLLLLLLLLLLllZZZZZZZZZZZZZZZZZZZZ
Answers
Answer:
56.54866776
Step-by-step explanation:
To find the circumference multiply the diameter of the circle with π (pi) or multiply the radius 2x with pi (π=3.14).
So18x π= 56.54866776
Hope this helps ^-^
(If u like it mark brainliest, plz)
Find the slope plllls I need help
Answers
Answer: 5 over 5
Step-by-step explanation:
Answer:
the slope is 5/4
Please help me 30 points please help me
Answers
Answer:
y = + 1x - 4y
Step-by-step explanation:
This could be the wrong way of writing it but thats the pattern ❤
Answer:
Step-by-step explanation:
y = + 1x - 4y
Please help! will give brainliest!
Given right triangle ABC with altitude BD drawn from vertex B to hypotenuse AC, find the lengths of AD, BD, and CD.
Keep as improper fraction
Answers
Answer:
AD = 3
BD = 10
CD = 17
Step-by-step explanation:
The requires side lengths are:
[tex]AD = \frac{49}{25}[/tex]
[tex]BD = \frac{168}{25}[/tex]
[tex]CD = \frac{576}{25}[/tex]
Considering triangle BDC, we have:
[tex]BC^2 = BD^2 +CD^2[/tex]
This gives
[tex]24^2 = BD^2 +(25 - AD)^2[/tex]
[tex]576 = BD^2 +(25 - AD)^2[/tex] --------- (1)
Considering triangle ABD, we have:
[tex]7^2 = BD^2 + AD^2[/tex]
[tex]49 = BD^2 + AD^2[/tex] ---- (2)
Subtract (2) from (1)
[tex]576 - 49 = BD^2 -BD^2 +(25 - AD)^2 - AD^2[/tex]
[tex]527 = (25 - AD)^2 - AD^2[/tex]
Expand
[tex]527 = 625 - 50AD + AD^2 - AD^2[/tex]
[tex]527 = 625 - 50AD[/tex]
Collect like terms
[tex]50AD = 625 - 527[/tex]
[tex]50AD = 98[/tex]
Divide both sides by 50
[tex]AD = \frac{98}{50}[/tex]
Reduce fraction
[tex]AD = \frac{49}{25}[/tex]
Recall that:
[tex]49 = BD^2 + AD^2[/tex]
So, we have:
[tex]49 = BD^2 + (49/25)^2[/tex]
[tex]49 = BD^2 + 2401/625[/tex]
Collect like terms
[tex]BD^2 = 49 - 2401/625[/tex]
Take LCM
[tex]BD^2 = \frac{625 *49 - 2401}{625 }[/tex]
[tex]BD^2 = \frac{28224}{625}[/tex]
Take the square roots of both sides
[tex]BD = \frac{168}{25}[/tex]
Also, we have:
[tex]CD = 25 - AD[/tex]
This gives
[tex]CD = 25 - \frac{49}{25}[/tex]
Take LCM
[tex]CD = \frac{625 - 49}{25}[/tex]
[tex]CD = \frac{576}{25}[/tex]
Hence, the requires side lengths are:
[tex]AD = \frac{49}{25}[/tex]
[tex]BD = \frac{168}{25}[/tex]
[tex]CD = \frac{576}{25}[/tex]
Read more about right triangles at:
https://brainly.com/question/2437195
Which equation represents a parabola with the focus at (0, -1) and
the directrix y
= 1?
(1) x2 = -8y
(3) x2 = Sy
(2) x2 = - 4y
(4) x2 = 4y
Answers
Answer:
Step-by-step explanation:
The vertex is halfway between focus and directrix, at (0,0).
The equation has the form y = ax².
Focal length p = distance between focus and vertex = 1
p = 1/|4a|
1 = 1/|4a|
|a| = ¼
The focus lies below the vertex, so the parabola opens downwards and a<0.
y = -¼x²
Equation represents a parabola with the focus at (0, -1) and
the directrix y=1 is [tex]x^2=-4y[/tex]
Given :
a parabola with the focus at (0, -1) and the directrix y= 1
The standard equation of parabola is [tex]y-k=\frac{1}{4p} (x-h)^2[/tex]
Focus is at (0,-1)
The midpoint of focus and directrix is the vertex
Directrix is at y=1
Midpoint of (0,-1) and y=1 is (0,0)
So the vertex is (0,0) that is our (h,k)
Now we find the value of p
The distance between vertex (0,0) and focus (0,-1) is the value of p
focus and vertex are 1 unit away. So p=-1
we got h=0 and k=0 and p=-1
Replace all the value in the standard equation
[tex]y-0=\frac{1}{4(-1)} (x-0)^2\\y=\frac{-1}{4} x^2\\4y=-x^2\\x^2=-4y[/tex]
Equation represents a parabola with the focus at (0, -1) and
the directrix y=1 is [tex]x^2=-4y[/tex]
Learn more : brainly.com/question/12582328
Please answer this question fast
Answers
Answer:
1 : 6
Step-by-step explanation:
From the question given above, the following data were obtained:
Radius (r) = 10 cm
Height (h) = 15 cm
Ratio of TSA and CSA =?
Next, we shall determine the total surface area (TSA) of the cylinder. This can be obtained as follow:
Radius (r) = 10 cm
Height (h) = 15 cm
Pi (π) = 3.14
Total surface area (TSA) of the cylinder =?
TSA = 2πr(r + H)
TSA = 2 × 3.14 × (10 + 15)
TSA = 6.28 × 25
TSA = 157 cm²
Next, we shall determine the curve surface area (CSA) of the cylinder. This can be obtained as follow:
Radius (r) = 10 cm
Height (h) = 15 cm
Pi (π) = 3.14
Curve surface area (CSA) of cylinder =?
CSA = 2πrh
CSA = 2 × 3.14 × 10 × 15
CSA = 942 cm²
Finally, we shall determine the ratio of the total surface area (TSA) and curve surface area (CSA) of the cylinder. This can be obtained as follow:
TSA = 157 cm²
CSA = 942 cm²
Ratio of TSA and CSA =?
TSA : CSA = 157 / 942
TSA : CSA = 1 / 6
TSA : CSA = 1 : 6
Thus, the ratio of the total surface area (TSA) and curve surface area (CSA) of the cylinder is 1 : 6
You roll a 6-sided die. What is the P(roll a 2)?
a
3/6
b
1/6
c
2/6
d
4/6
Answers
Answer:
b; 1/6
Step-by-step explanation:
kevin buys a lether jacket listed for $190 he receives a 15% discount at the register what is the new price of the lether jacket.
Answers
Answer:
161.50
Step-by-step explanation:
Answer:
take $190 and multiply it by 0.15 (28.5) and subtract that from $190= $161.50
Step-by-step explanation:
PLZ MAKE ME BRAINLIEST TRYNG TO REACH TOP RANK ON LEADER BOARD
find the mean of the data in the pictograph
Answers
Answer:
16 is the mean
Step-by-step explanation:
I gave you the answer, no problem..
PLEASE HELP! IM ALMOST DONE WITH THIS ASSIGNMENT PLSSS HELPP ILL GIVE BRAINLIEST SHOW UR WORK
question: solve the solution using substitution.
Answers
Answer:
x = -3
y = -8
Step-by-step explanation:
2y = x - 13
3x = y - 1; let y = 3x + 1
substitute to solve for 'x':
2(3x + 1) = x - 13
6x + 2 = x - 13
5x + 2 = -13
5x = -15
x = -3
solve for 'y':
3(-3) = y - 1
-9 = y - 1
-8 = y
Answer:
(-3,-8)
Step-by-step explanation:
Get one of the variables by themself.
3x = y-1
y = 3x+1
Plug that equation into the other one
2(3x+1) = x-13
Distribute the 2 to 3x+1
6x+2 = x-13
Combine like terms
6x+2 = x-13
-x -x
5x+2 = x-13
-2 -2
5x = -15
Divide by 5 on both sides
5x = -15
÷5 ÷5
x = -3
Find y
3(-3) = y-1
-9 = y-1
+1 +1
y = -8
PLSSS HELP ASAP!!!!!!!
Answers
Please help it's due in 1 hr and I don't understand;-;
Answers
Answer:
1. x=6 y=7
hope that helps!
Pleasee answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!
Answers
Answer:3.6
Step-by-step explanation:
Answer:
3.6
Step-by-step explanation:
Distance = √(x2 - x1)² + (y2 - y1)²
√(5 - 3)² + (-2 - 1)²
√13 = 3.605
good luck, i hope this helps :)
14.6 is the geometric mean between a and 9. Find a to the nearest tenth.
Answers
Answer:
Step-by-step explanation:
What is the answer?
Answers
Reid is taking piano and trumpet lessons. He likes the piano more, and last month
practiced the piano 5 hours for every 3 hours he practiced the trumpet.
Pick the diagram that models the ratio in the story.
piano
trumpet
piano
trumpet
If Reid spent 4 more hours practicing the piano than the trumpet last month, how many
hours did he spend practicing the piano?
Answers
Answer:
he would have spent 10 hours on the piano.
Step-by-step explanation:
every time he practices he practices two more hours on the piano then on the trumpet times that by two and you have your answer
5 divided by what gets you 0.60
Answers
Answer:
Step-by-step explanation:
12
A baseball is hit from an initial height of 3 feet and reaches a maximum height of 403 feet. Which function could be used to model this situation, where is the height, in feet, after t seconds?
Answers
Answer:A. h(t) = -16(t - 403)^2 + 3
B. h(t) = -16(t - 5)^2 + 3
C. h(t) = -16(t - 3)^2 + 403
D. h(t) = -16(t - 5)^2 + 403
Step-by-step explanation:
A rectangular plot is 35m long and 30 m broad. A road of uniform width of 2.5m runs along the boundary of the plot inside it. Find the cost of paving the road with bricks at Rs. 10 per m2.
Answers
Answer:
In ko add krne k baad 10 se multiple kro
Answer:
If the sum of two numbers is 128band their difference is 16 then find the number
Can someone help please
Answers
Answer:
x ≈ 7.7
Step-by-step explanation:
Using Pythagoras' identity on the right triangle on the right side
let the third side be y , then
y² + 4² = 10²
y² + 16 = 100 ( subtract 16 from both sides )
y² = 84
Using Pythagoras' identity on the right triangle on the left side
x² + 5² = y²
x² + 25 = 84 ( subtract 25 from both sides )
x² = 59 ( take the square root of both sides )
x = [tex]\sqrt{59}[/tex] ≈ 7.7 ( to the nearest tenth )
anyoneeee knowww this is math i don’t know what it is
Answers
Answer:
Obtuce scalene
Step-by-step explanation:
Find the value of 2.8 + 6.5
Answers
Answer:
Step-by-step explanation:
2.8 + 6.5 = 9.3
Answer:
9.3
Step-by-step explanation:
2.8+6.5=9.3
You'd use addition to solve this
y = 4x + 8; y = –x + 3
Answers
Answer:
y= -12
Step-by-step explanation:
4x+8 = -x+3 -> Find x by using all information
5x=-5 -> Simplify
x=-1 -> Solve
y=-12 -> Plug in to find y
1) Expand and simplify the following:
a)3(x squared plus 3x cubed - 2)
Answers
Answer:
3x³ + x² - 2
Step-by-step explanation:
a) 3(x squared plus 3x cubed - 2)
x squared = x²
3x cubed = 3x³
3(x squared plus 3x cubed - 2)
= 3(x² + 3x³ - 2)
= 3x² + 9x³ - 6
Rearrange according to power
= 9x³ + 3x² - 6
When the expression is divided by 3, it is equivalent to
3x³ + x² - 2
what is the slope of the line that is parallel to the line that goes through points 6, 3 and 16, -5
Answers
write a numerical expression for the verbal expression
eighteen more than five
Answers
Answer:
5+8
Step-by-step explanation: