Answer:
[tex]\huge\boxed{\sf Discriminant = -4}[/tex]
Step-by-step explanation:
Comparing it with quadratic equation [tex]ax^2 + bx + c = 0[/tex], we get:
a = 1 . b = 4 and c = 5
So,
Discriminant = [tex]b^2-4ac[/tex]
D = (4)²-4(1)(5)
D = 16 - 20
D = -4
Hence,
Discriminant = -4
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH18074 ft
diameter =
Circumference
=
Area =
diameter (d)= 2r=2*4=8ft
Step-by-step explanation:
circumference =2πr
=2 *4*22/7
=25.14 ft
also
Area=πr^2
=4^2 *22/7
50 .28 sq ft
Answer:
Diameter: 8ft
circumference: 25.12
area: 50.24 square feet
Step-by-step explanation:
radius is 4ft
Diameter is 8ft
circumference 2×pi×radius
2×3.14×4
25.12
area (pi)radius^2
3.14×(4)^2
3.14×(16)
50.24
50 square feet
Given d(t) = -2t^2 - 3t + 13, what is the
value of d(-3)?
A) d(-3) = 4
B) d(-3) = 40
C) d(-3) = 58
D) d(-3) = -14
Answer:
I'm pretty sure b is the answer
Please answer I will give BRAINLIEST if i can
Answer:
Glass A holds the most, It holds more than glass B because of its cone shape.
Step-by-step explanation:
I hope I helped you, now have a good day and good luck!! ;)
Can you please help me solve for x for this triangle please!!
Answer:
See below, please!
Step-by-step explanation:
Since this triangle is a right triangle, the two acute angles are always going to be complementary (adding up to 90 degrees). So we can set up an equation: 2x+3x+5=90. Solve this and we get x=17.
Hope this helped!
14.The volume of a cube whose edge is 3x is _______.
FASTT!!!
Answer:
[tex]27x^3[/tex]
Step-by-step explanation:
The function g is defined by g(x) = 3x - 5.
Find g (2x).
Are these shapes similar or congruent?
Answer:
Congruent
Step-by-step explanation:
Hope this helps you!!
Solve for x
(-4x + 4).-3= 24
answer:27
because -4 +4 = 0 x -3= -3 +27= 24
HELP. DUE AT 11:59!!!!! PLEASE
Which is the most appropriate unit to measure the length of a golf stick?
A) square inches
B) inches
C) square miles
D) miles
Answer:
b can i have brainly
Step-by-step explanation:
Find the area of each figure.
Please help!! I usually don’t ask for help I’m having trouble.
[tex]1) \: \: 28 \times 30 {cm}^{2} = 76 {cm}^{2} \\ 2) \: \: 2(19 + 39) \times 16 = 1856 {cm}^{2} \\ 3) \: \: 15 \times 16 {cm}^{2} = 240 {cm}^{2} \\ 4) \: \: 10 \times 24 {cm}^{2} = 240 {cm}^{2} [/tex]
hope it helps you ❣❣
Mark me as brainliest
veterinary doctors marked 30 deer and released them. Later on they counted 150 deer, 12 of which had marks. TO the nearest whole number, find the best estimate of deer population.
Answer:
1800
Step-by-step explanation:
Terrence finished a word search in the time it took Frank. Charlotte finished the word search in the time it took Terrence. Frank finished the word search in 32 minutes. How long did it take Charlotte to finish the word search?
Answer:
Charlotte finished the word search in 16 minutes
Step-by-step explanation:
Terrence finished a word search in 3/4 the time it took frank. charlotte finished the word search in2/3 the time it took terrence. Frank finished the word search in 32 min. how long did it take charlotte to finish the word search
Frank finished the word search in 32 min
Terrence finished a word search in 3/4 the time it took frank
Terrence = 3/4 of 32 min
= 3/4 × 32 minutes
= (3×32)/4
= 96/4
= 24 minutes
Terrence finished a word search in 24 minutes
Charlotte finished the word search in 2/3 the time it took Terrence
Charlotte = 2/3 of 24 minutes
= 2/3 × 24
= (2×24)/3
= 48/3
= 16 minutes
Charlotte finished the word search in 16 minutes
A new car is purchased for 23900 dollars. The value of the car depreciates at 9.25% per year. To the nearest tenth of a year, how long will it be until the value of the car is 6000 dollars?
9514 1404 393
Answer:
14.2 years
Step-by-step explanation:
The value is described by the exponential function ...
y = (initial value)·(decay factor)^x
where y is the value after x years.
The decay factor is (1 - annual depreciation) = 1 - 0.0925 = 0.9075, so we want to find x when ...
6000 = 23900·0.9075^x
6000/23900 = 0.9075^x . . . . . . . . . . . . . . divide by 23900
log(6000/23900) = x·log(0.9075) . . . . . . . take logarithms
x = log(6000/23900)/log(0.9075) ≈ 14.2396
It will be about 14.2 years until the value of the car is $6000.
Answer:
14.2
Step-by-step explanation:
Can you plzzzzz help me?
Answer:
65 people
Step-by-step explanation:
0 represents the unknown value
0-19= -19
-19+17= -2
63+ the two that were lost during the journey=65
a. What is the circumference of the
largest circle that can be cut from a
square measuring 30 cm on a side?
Use 3.14 for Pie
b. What percent of the perimeter of the
square is the circumference of the
circle?
Answer:
a) 94.2 cm
b) 78.5%
Step-by-step explanation:
a) since the square side = 30 cm
it means the diameter = 30 cm
then circumference of the largest circle that can be cut = 3.14×30 = 94.2 cm
b) the perimeter of the square = 30×4 = 120
94.2 for 120
x% for 100%
x = (100×94.2)/120 = 9420/120 = 942/12 = 78.5%
Simplify the expression below using the order of operations. 2+3^2-1
Answer:
asnwer is 10 give brainliest
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
Subtract the numbers 2-1=1
=3^2+1
3^2=9
=9+1
Add the numbers 9+1=10
=10
José has 3 brown socks, 5 blue socks, and 6 black socks
in his sock drawer. He picked one sock and then another sock out of the
drawer. Are the events independent or dependent? Explain your answer.
Answer:
independent
Step-by-step explanation:
, it has no effect on the number of red socks so thewhen he draws out a sock the event is not affected by the draw a blue sock or the bla ck sock or the brown sock
Screenshot below, please help
Answer:
Angles 2 and 5
Step-by-step explanation:
The first choice is wrong because they are not equivalent to each other
564000 in scientific notation
Answer:
5.64 × 10^5
Step-by-step explanation:
what is 8+192x5, please help
Answer:
8+192x5=8+960=968 is your answer
HELP WILL GIVE BRAINLIST IF CORRECT!!!
Under her cell phone plan, Morgan pays a flat cost of $55.50 per month and $4 per gigabyte. She wants to keep her bill at $71.90 per month. How many gigabytes of data can she use while staying within her budget?
Answer:
4.1
Step-by-step explanation:
You would first subtract 55.50 from 71.90 which leaves you with 16.4,
Then you would divide 16.4 by 4 to find how many gigabytes she could use which gives you 4.1
Hope this helped
Answer:
4.1
Step-by-step explanation:
determine the value of k if g(x)=4x-k is a tanget to f(x)=-x²+8x+20
Answer:
This seems to be incomplete because we do not know where g(x) must be tangent to f(x). So i will assume that we want g(x) to be a tangent to f(x) in the point x0.
We know that for a function f(x), f'(x) is the tangent function in at the point x.
Where f'(x) = df(x)/dx
So we can find a value of k that is equal (for some value of x) to the first derivative of f(x).
g(x) = 4*x - k
f(x) = -x^2 + 8*x + 20
f'(x) = -2*x + 8
Now we want to find a value of k such that:
4*x0 - k = -2*x0 + 8
4*x0 - k = -2*x0 + 8
4*x0 + 2*x0 - 8 = k
6*x0 - 8 = k
Then if we want g(x) to be a tangent to f(x) = -x²+8x+20 in the point x0, we must have k = 6*x0 - 8
. Jacob and Sadie each got ahead on their skills practices. Jacob completed twelve fewer problems than twice the number Sadie completed. They completed a total of 127 problems. Which system of equations models this situation if Jacob completed j problems & Sadie completed s problems? A) j + s = 127
Answer:
2s-12=j
S+J=127
Step-by-step explanation:
ok so firstly you are going to have 2 problems. Jacob has 12 fewer than 2x Sadie's so it will look like this, 2s-12=j
. 2x Sadie's minus 12 will give you Jacobs. and then it tells you that together they have 127 completed so S+J=127
hope this helps!!
SEE
igle is 180
VX
Given: yll z
Prove: mZ5+ m2 2 + m26 = 180°
Angles Lines Stateme
Reasons
21
21
23
25
26
m21
m23
L
m 25
A
m26
M
1
2 3
Y
Statements
Reasons
4
5
6
7
Z
С
B
Assemble the proof by dragging tiles to
the Statements and Reasons columns
Answer:
igle is 180
VX
Step-by-step explanation:
AB
MA
B
F
с
AAB=BC,AM=MC
BM IAC , EF I BC1.38371248486|ᡕᠵ᠊ᡃ່࡚ࠢ࠘ ⸝່ࠡࠣ᠊߯᠆ࠣ࠘
Marissa bought 60 horns for her New Year’s Eve party for $83.40. She needs to purchase an additional 18 horns for the party at the same unit rate. Choose True or False for each statement.
Marissa will spend $1.49 for each horn.
Marissa will spend $25.02 on the new horns.
Marissa will have a total of 78 horns.
Marissa will spend a total of $108.42 on horns for the party
Answer:
False
True
True
True
Can someone help me with this please?
Answer:
the function is linear
Step-by-step explanation:
now you figure this out in many ways,
but the easiest is to plot the points on a Cartesian x-y plane, rule a line through the points,if it's in a straight line then its linear if it's a curve its cubic
from the question, after plotting your points.ie (-9,-2),(-5,-7),(-1,-12),(3-17)
we get a straight line pointing downwards.
I hope this is convenient enough
in this figure prove that cd//ef
Answer:
1) 36 + 50 = 86 : Addition property of equality
2) m<D = m<ADB : If two angles have the same measure, then they are equal.
3) <D congruent to <ADB : if two angle are equal, then they are congruent.
4) <D, <ADB are alternate interior angles: assumed from diagram
5) CD // AB : if alternate interior angles are congruent, then the 2 lines cut by a transversal are //.
6) 130 + 50 = 180 : addition property of equality
7) m<E, m<BAE are supplements : if the sum of two angles equal to 180, then they are supplements.
8) <E, <BAE are same-side interior angles : assumed from diagram
9) EF // AB : if same-side interior angles are supplements, then the 2 lines cut by a transversal are //.
10) CD // EF : if two lines are // to the same line, then they are //.
im pretty sure this is the proof
GIVING BRAINLIEST
If you receive three successive discounts of 36%, 25% and 30%, you receive the same savings as one big discount of:
a) 33.6% b) 66.4% c) 71% d) 88% e) 88.5%
Answer:
B, 66.4%
Step-by-step explanation:
In the given figure, m∠TPA = m∠PQC = 135°. Which one of the following postulates proves the lines AB and CD are parallel?
Answer:
The correct answer is "A" I just took the test trust me
Step-by-step explanation: