Answer:
4 and 4/6
Step-by-step explanation:
what is beter,
10 Pens for $8.99.
or
25 Pens for $19.75.
Answer:
the 2 one is better because you get more pens
Step-by-step explanation:
you get more pens
X/-5=1.2
Solve the equation for the value of the equation for the value of the variable show all work please and thanks :):)
well u can transfer the -5 in denominator to the right hand side
so x=1.2*(-5)
x=-6.0
one band was paid $14000 for a concert
Answer:
cool, but what is the question?
A team is ordering sweatshirts and sweatpants for its players. Each sweatshirt costs $34 and each pair of sweatpants costs $15. Write an algebraic expression to represent the total cost if want sweatshirts and y players want sweatpants.
Answer:
34+15y
Step-by-step explanation:
Let x players want a sweatshirt and y players want sweatpants.
Each sweatshirt costs $34 and each pair of sweatpants costs $15.
Cost of sweatshirt = 34x
Cost of sweatpants = 15y
Total cost = cost of sweatshirt + cost of sweatpants
= 34x+15y
Hence, the total cost is "34x+15y".
A line passes through the point 2,1 and has a slope of -3/5. Write an equation for this line
Answer:
y = -3/5x + 1.3
Step-by-step explanation:
y = mx + b
m: slope
b: y-intercept
First, let's substitute in the values.
Point: (2, 1)
Slope: -3/5
y = mx + b
(1) = (-3/5)(2) + b
1 = -0.3 + b
1 + 0.3 = -0.3 + b + 0.3
b = 1.3
Now, let's add the slope and y-intercept to the equation.
y = mx + b
m = -3/5
b = 1.3
y = -3/5x + 1.3
Hope this helped! <3
hey, help me ASAP please :)
Answer:
because of vertical angles, 108
Step-by-step explanation:
Answer:
108 degrees
Step-by-step explanation:
Opposite angles are equal.
Thus, x = 108 degrees.
Which equation represents the standard form for linear equations?
A y= 5x – 2
B. 3x – 5 = 2y
C. 1/2x+ 2y = 7
D. 5x– 4y = 20
Answer:
Ax + By = C the answer is C 1/2x+2y=7
Step-by-step explanation:
An angle θ on the unit circle has a sine of 14. What is the value of cosθ?
Given:
An angle θ on the unit circle has a sine of [tex]\dfrac{1}{4}[/tex].
To find:
The value of cosθ.
Solution:
We have,
[tex]\sin \theta=\dfrac{1}{4}[/tex]
Since sinθ is positive, therefore, θ lies in first or second quadrant.
We know that,
[tex]\sin^2 \theta +\cos^2 \theta =1[/tex]
[tex](\dfrac{1}{4})^2+\cos^2 \theta =1[/tex]
[tex]\dfrac{1}{16}+\cos^2 \theta =1[/tex]
[tex]\cos^2 \theta =1-\dfrac{1}{16}[/tex]
Taking square root on both sides.
[tex]\cos \theta =\pm \sqrt{\dfrac{16-1}{16}}[/tex]
[tex]\cos \theta =\pm \dfrac{\sqrt{15}}{4}[/tex]
Therefore, the value of cosθ is either [tex]\dfrac{\sqrt{15}}{4}[/tex] or [tex]-\dfrac{\sqrt{15}}{4}[/tex].
evaluate the limit of
[tex] \sqrt{x - 1} [/tex]
approaches to
[tex] {1}^{ - } [/tex]
Answer:
sorry homie im bad at math but download conects
Step-by-step explanation:
i just cheat my way through life
Please help me with this homework
Answer:
linear
non-linear
Step-by-step explanation:
Tommy thought of a number. He multiplied the number 4, then added six. The result was fifty. What was Tommy's starting number?
Answer:
Was number 11
Step-by-step explanation:
50 - 6 = 44
44 dividid 4 is 11
If 4x+3x-2(x+5)=-9 then x=?
Answer:
X=1/5
Step-by-step explanation:
7×-2×-10=-9
5×=-9 +10
5×/5=1/5
×=1/5
On Monday, the high was 60 degrees Fahrenheit in the Capitol. On Tuesday, the high was 18% more. What was the temperature on Tuesday?
Answer: 78 degrees
Step-by-step explanation:
given a-2b=8, 4a+3b= 21; prove b= -1
please give a step by step answer
For the system of the equation given we have proven that b = -1.
Given that,
a - 2b = 8
4a + 3b = 21
To prove b= -1
The equation is the relationship between variables and is represented as y =ax +b is an example of a polynomial equation.
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
a - 2b = 8 - - - - - - - (1)
4a + 3b= 21 - - - -- - - (2)
From equation 1
a = 8 + 2b
put a in equation 2
4 (8 + 2b) + 3b = 21
32 + 8b + 3b = 21
11b = 21 - 32
11b = -11
b = -1
Hence proved.
Thus, for the system of the equation given, we have proven that b = -1.
Learn more about the equation here:
brainly.com/question/10413253
#SPJ2
What is 70 percent of30
Find the slope between the points (6,10) and (4, -2)
Answer:
The slope is 6/1 or 6
Step-by-step explanation:
In a research lab, a cell biologist is growing a strain of bacteria under two different conditions. Culture A had an initial population of 200 and doubles every hour. Culture B had an initial population of 819200 but has been contaminated. Its population is now decreasing by half every hour. When will the two cultures have an equivalent population? Solve using an exponential equation.
Answer:
They will have the same population after 6 hours
Step-by-step explanation:
The general exponential equation format for this is;
P = P_o(e^(kt))
For Culture A, we are told that it had an initial population of 200 and doubles every hour.
Thus;
After 1 hour, P = 400
After 2 hours, P = 800
After 3 hours, P = 1600
Thus;
At t = 1, we have;
400 = 200(e^(k × 1))
400/200 = e^(k)
e^(k) = 2 - - - (eq 1)
At t = 2, we have;
800 = 200(e^(k × 2))
800/200 = e^(2k)
e^(2k) = 4 - - - (eq 2)
To find k, let's divide eq 1 by eq 2.
(e^(2k))/e^(k) = 4/2
e^(2k - k) = 2
e^(k) = 2
k = In 2
k = 0.6931
Thus;
P = 200e^(0.6931t)
For Culture B, we are told that it had an initial population of 819200 but has been contaminated. Its population is now decreasing by half every hour.
Thus;
After 1 hour, P = 409600
After 2 hours, P = 204800
After 3 hours, P = 102400
Thus;
At t = 1, we have;
409600 = 819200(e^(k × 1))
409600/819200 = e^(k)
e^(k) = 0.5 - - - (eq 1)
At t = 2, we have;
204800 = 819200(e^(k × 2))
204800/819200 = e^(2k)
e^(2k) = 0.25 - - - (eq 2)
To find k, let's divide eq 1 by eq 2.
(e^(2k))/e^(k) = 0.25/0.5
e^(k) = 0.5
k = In 0.5
k = -0.6931
Thus;
P = 819200(e^(-0.6931t))
We want to find the time when the 2 cultures will have the same population. Thus;
200e^(0.6931t) = 819200(e^(-0.6931t))
Arranging, we have;
(e^(0.6931t))/(e^(-0.6931t)) = 819200/200
e^(0.6931t - (-0.6931t) = 4096
e^(1.3862t) = 4096
1.3862t = In 4096
1.3862t = 8.3178
t = 8.3178/1.3862
t ≈ 6 hours
What is the range of function g?
Answer:
c
Step-by-step explanation:
but if C is incorrect i believe your second choice should be D
The surface area of the pyramid is
square inches.
fill in the blank
Answer:
9360 square inches
Step-by-step explanation:
Answers
A. 10
B. 5
D. 15
C. 20
Answer:
D: 15
Step-by-step explanation:
Ok, by looking at the first equation, you know that one triangle equals 10. By looking at the second one, you see that two circles equal 10, since 20- triangle(10) equals 10. This means a circle has to equal 5. looking at the third one, the answer is 13, and a circle is 5, so 13-5=8. Two squares equal 8. the last one shows one triangle, one circle, and a half square. From the third one, you know that one square equals 4, so a half square equals two. I do not know why this logic doesn't match with the answers, since 10(triangle) plus 5(circle) and 2(half square) is 17, but in terms of what makes sense and just matching it with the answers provided, I say go with the third option.
The Blackburn family has a square field where they keep their cattle. The area of the field is 40,000 ft2, and Mr. Blackburn wants to put a fence diagonally through the field. What should the length of the fence be? *
282.8 feet
4,000 feet
782.6 feet
8,000 feet
Lori tosses a ball into the air. The equation y = –16(x – 1)^2 + 25 models the height, y, in feet, of the ball after x seconds. What is the maximum height the ball reaches?
1 ft
9 ft
16 ft
25 ft
Answer:
25 ft
Step-by-step explanation:
Got it right on EDG2020
The ball will reach the maximum height in a second. Then the maximum height the ball reaches will be 25 ft.
What is differentiation?The rate of change of a function with respect to the variable is called differentiation. It can be increasing or decreasing.
Lori tosses a ball into the air. The equation models the height, y, in feet, of the ball after x seconds.
[tex]\rm y = -16(x - 1)^2 + 25[/tex]
Differentiate the equation with respect to x, then we have
[tex]\begin{aligned} y' &= 0\\\\\dfrac{d}{dx}[-16(x - 1)^2 + 25] &= 0\\\\ -32(x-1) &= 0\\\\x &= 1 \end{aligned}[/tex]
Then the maximum height the ball reaches will be
[tex]\rm y = -16(1 - 1)^2 + 25\\\\y = -16*0^2 + 25\\\\y = 25[/tex]
Then the maximum height the ball reaches will be 25 ft.
More about the differentiation link is given below.
https://brainly.com/question/24062595
#SPJ2
Solve the inequality: I will give brainliest. Explain in detail please!
p/8 ≥ -5
A.) p ≥ 40
B.) p ≥ 40
C.) p ≥ -13
D.) p ≥ -40
Answer:
plz give me BRAINLIEST
Step-by-step explanation:
c. p >-13
What is the value of x for the equation 4x – 2y = 6 if y= -3?
Answer:
x = 0
Step-by-step explanation:
Let's divid both sides of the equation by 2 first, so we don't have as much work to do in the next step:
[tex]4x-2y=6\\2x-y=3[/tex]
Substituting -3 for y:
[tex]2x-(-3)=3\\2x+3=3\\2x=0\\x=0[/tex]
Can someone please help me and thank you
9514 1404 393
Answer:
325 cm³
Step-by-step explanation:
The volume is the product of the dimensions shown.
V = LWH
V = (13 cm)(5 cm)(5 cm) = 325 cm³
PLEASE HELP ME I AM SO CONFUSED!!
Regi has £9 in her purse.
She spends a £5 note and gets £3 back in change.
How much is in Regi's purse now?
Answer:
7 hope this helps
Step-by-step explanation:
9 - 5 = 4 + 3 = 7
enter a negative number that is greater than -10
Answer:
-9
Step-by-step explanation:
Can I have brainliest?
Also can you please thank me, it'll be gratefully appreciative.
:)
12+90+x=180 I need help fast
Answer:
78
Step-by-step explanation:
102+x=180
x=180-102
x=78
Simon says that to find the area of a trapezoid, you can multiply the height by the top base and the height by the bottom base. Then add the two products together and divide the sum by 2. Is Simon correct? Complete the explanation.
Answer:
Yes, Simon is correct.
Step-by-step explanation:
A trapezoid refers to a quadrilateral that is convex in shape; as such it has no equal sides and no parallel sides.
Let the height of a trapezoid be h.
Let the top base of a trapezoid be b1.
Let the bottom base of a trapezoid be b2.
[tex] Area \; of \; trapezoid = \frac {1}{2} * (Sum \; of \; nonparallel \; sides) * height [/tex]
Therefore, [tex] Area \; of \; trapezoid = \frac {1}{2} * (b_{1} + b_{2}) * h [/tex]
[tex] Area \; of \; trapezoid = \frac {1}{2} * (b_{1}h + b_{2}h) [/tex]
[tex] Area \; of \; trapezoid = \frac {b_{1}h + b_{2}h}{2} [/tex]
Hence, to find the area of a trapezoid, you will multiply the height by the top base and the height by the bottom base. Then you add the two products together and divide the sum by 2.