Answer: $14
Step-by-step explanation:
We know that Ruben spends $5 on candy, and saves $7 for college. If we add these together we get 12. Remaining: $2, which he donates to a children’s hospital. So 7+5+2=14, so Ruben has a weekly allowance of $14.
Linear Algebra.
Can anyone help with the 3rd task
Use determinants to decide if the set of vectors is linearly independent.
Answer:
Jajkmama
Step-by-step explanation:
y’all please a girl b struggling. What is the true solution to 2 In ein 5x = 2 In 15?
X=0
X= 3
X=9
X = 15
x=3
本题已由中国数学会官方解答（现有会员：3人）
The solution is, the value of x = 3.
What is quotient and product rule of logarithm?Logarithm, the exponent or power to which a base must be raised to yield a given number. The quotient rule says that, the logarithm of a quotient is equal to a difference & the product rule says that logarithm of product is equal to the sum of logarithm.
here, we have,
given that,
2 In e^(ln 5x) = 2 In 15
now, we have to solve it for x.
we know that,
e^(ln 5x) = 5x
using the rule of logarithm.
so, we have,
2 In (5x) = 2 In 15
now, for solving,
comparing both sides, we get,
15 = 5x
i.e. x = 15/5
or, x = 3
Hence, The solution is, the value of x = 3.
To learn more on Property of Logarithm click:
brainly.com/question/10418010
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elp
37(37)
What is 37 to the 37th power
Answer:
1.0555135e+58
Step-by-step explanation:
Plz help I need help
Answer:
the ratio should be 4.754
Step-by-step explanation: ez kiddo i have the answer key
Starting on the positive x-axis and moving 1/3 of the way around a circle that has radius 3 m, how far would one travel?
Use the fundamental trigonometric identities to simplify the expression. There is more than one correct form of the answer.
5 csc φ tan φ + 5 sec φ
Answer:
10sec φ
Step-by-step explanation:
5 csc φ tan φ + 5 sec φ
= 5 (1/sin φ) * (sin φ/cos φ) + 5 sec φ
= 5 (1/cos φ) + 5 sec φ
= 5 sec φ + 5 sec φ
= 10 sec φ
which one of these answers is the actual one
help please i can't find anything
Answer:
The answer is -40
Step-by-step explanation:
Answer: 19x - 216/6
Explanation: Hope this helps!
Find the intersection of the circle x^2+ y^2 = 29 and y = x - 3 algebraically
Answer:
Intersections: (-2, -5) and (5, 2)
Hope this helps!
[tex]x^{2} +y^{2} =29[/tex] circle and [tex]y=x-3[/tex]
[tex]y^{2} =29-x^{2}[/tex] [tex]\left ( y \right )^{2}=\left ( x-3 \right )^{2}[/tex]
[tex]y^{2}=x^{2}-6x+9[/tex]
[tex]\Rightarrow x^{2} -6x+9=29-x^{2}[/tex]
[tex]\Rightarrow 2x^{2} -6x-20=0[/tex] [tex]\Rightarrow 2x^{2} -3x-10=0[/tex]
[tex]x^{2} -5x+2x-10=0[/tex] [tex]\Rightarrow x\left ( x-5 \right ) +2\left ( x-5 \right )=0[/tex]
[tex]x=5, \ x=-2[/tex]
[tex]\Rightarrow y=29-25=4\pm 2[/tex] [tex]\Rightarrow y=29-4=25\pm 5[/tex]
The circle intersects the line at [tex]\left ( 5,2 \right )[/tex] and [tex]\left ( -2,-5 \right )[/tex].
Jackson bought paint for $11.50 per can. How much would his total cost be if he needed 4 cans of paint?
Multiply number of cans by price per can:
4 x 11.50 = 46
They need $46
Answer:
$46
Step-by-step explanation:
Cuz im Smart
How many lines of symmetry does a regular polygon with 10 sides and 10 congruent interior angles have?
Answer:
ten
Step-by-step explanation:
I hope this helps!!!!!!!!!
A store purchased a digital camera and marked it up 100% from the original cost of $863.57. A week later, the store placed the digital camera on sale for 40% off. What was the discount price?
Answer:
1,036.28
Step-by-step explanation:
One side of a 216 square foot rectangular room is 18 feet. How long is the other side?
Answer:
216 -18-18= 180 /2= 90
Step-by-step explanation:
thus is how I figured it out cause 2 aides of a rectangle are the same so it would leave the other 2 sides as equal too
what is the y intercept of the line that passes through the point 3, 4 and has a slope of 3
(0, -5)
Step-by-step explanation:
Since we are given the slope and a point on the line, we can use these to write the point-slope form of the equation of the line, which looks this this:
[tex]y - y_1 = m(x - x_1)[/tex]
where [tex](x_1, y_1)[/tex] is the point on the line and m is the slope. So the equation has the form
[tex]y - 4 = 3(x - 3)[/tex]
To find the y-intercept, set x = 0 to get
[tex]y - 4 = 3(0 - 3) \Rightarrow y - 4 = -9[/tex]
Solving for y, we get
[tex]y = -5[/tex]
Therefore, the coordinates of the y-intercept is (0, -5).
1. A sample of bacteria cells in a petri dish increases by 50% every hour. A scientist
starts with a sample of 30 bacteria cells. Write an equation that can be used to
determine the number of cells after x hours.
2. how many bacteria cells will be present in the dish after 3 hours?
3.how many bacteria cells will be present after 12 hours?
The equation is, [tex]\rm y = 30(1+0.50)^x[/tex] 101.25 bacteria cells after 3 hours, and 3892 bacteria cells after 12 hours will be present,
It is given that the sample of bacteria cells in a petri dish increases by 50% every hour, a scientist starts with a sample of 30 bacteria cells.
It is required to find the equation that can be used to determine the number of cells after x hours.
What is Exponential Growth?It is defined as increasing an amount by a definite percentage over the span of a time, the original amount increases exponentially.
We know the Exponential Growth equation written as:
[tex]\rm y= a(1+r)^t[/tex]
Where y = total amount,
a = starting amount
r = the growth rate/exponential decay rate as a decimal
t = number of growth periods.
We have a = 30
r = 50% = 0.50
t = x
Putting these values in the Exponential Growth equation, we get:
[tex]\rm y = 30(1+0.50)^x[/tex] this is the equation for Exponential Growth.
If x = 3 hours, then:
[tex]\rm y = 30(1+0.50)^3 \Rightarrow 30(1.50)^3\Rightarrow 30(3.375)\Rightarrow 101.25\\[/tex]
If x = 12 hours, then:
[tex]\rm y = 30(1+0.50)^1^2 \Rightarrow 30(1.50)^1^2\Rightarrow 30(129.746)\Rightarrow 3892.39\approx 3892[/tex]
Thus, the equation that can be used to determine the number of cells after x hours is, [tex]\rm y = 30(1+0.50)^x[/tex], that 101.25 bacteria cells will be present in the dish after 3 hours, and 3892 bacteria cells will be present after 12 hours.
Learn more about Exponential Decay here:
brainly.com/question/2193820
Answer:
1). y=30(1+.50)^x
2). 101.25
3). 3,892.39 Bacteria cells
Step-by-step explanation:
11.
Describe how the graph of y = |x| – 4 is like the graph of y = |x| and how it is different.
A. The graphs are the same shape. The y-intercept of y = |x| is 0 and the x-intercept of y = |x| – 4 is –4.
B. The graphs have the same y-intercept. The graph of y = |x| – 4 is steeper than y = |x|.
C. The graphs are the same shape. The y-intercept of y = |x| is 0 and the y-intercept oof y = |x| – 4 is –4.
D. The graph of y = |x| – 4 is the same as y = |x|.
Answer:
D. The graph of y = |x| – 4 is the same as y = |x|.
Step-by-step explanation:
The graph y=|x|-4 is obtained from the graph y=|x| dy moving down 4 units the graph y=|x| along the y-axis (see, if x=0, then for y=|x|, y=0 and for y=|x|-4, y=-4).
These two graphs have the same form.
...................................................................................................................................................
The graph of y=|x|-4 is the same as y=|x|.
What is 230−−√+1030−−√ in simplified radical form?
2030−−√
2060−−√
1230−−√
1260−−√
Answer: B
Step-by-step explanation: Hope this helps :)
The graph shows the relationship between the distance traveled by car and the amount of fuel used by the car. What is the constant of proportionality for this graph?
1
1/20
2
20
Answer:
20
Step-by-step explanation:
Write 0.959 as a fraction help quick
Answer:
959/1000
Thank me later and for asking! :))
Answer:
Step-by-step explanation:
0.959 as a fraction and percent expansion provides the details of what is the equivalent fraction and percent for decimal 0.959, and the answer with steps to understand how it is being calculated.
0.959 as a Fraction
0.959 = (?)
= (0.959/1) x (1000/1000)
= 959/1000
0.959 = 959/1000
0.959 as a fraction equals to 959/1000
Hope this helps :)
Use iteration to find the solution to the equation 2x2 – 9x = 4, the answer is between 4 and 6.
Find the width of a rectangle with an area of 13 3/4 square feet and a length of 5 1/2 ft
Answer:
2.6
Step-by-step explanation:
Could you mark this the brainlist
Answer:
2.5 or 2 1/2 ft is the width
Step-by-step explanation:
Area of rectangle = length × width
(13 3/4 can also be written as 13.75)
(5 1/2 can also be written as 5.5)
Area = l × w
13.75 = 5.5 × w
13.75 ÷ 5.5 = w
2.5 = w
) How many arrangements of the 26 different letters of the alphabet (with no repeats) are there in which all the consonants appear before all the vowels (a,e,i,o,u)
Answer:the answer is 21 with np repeats
Step-by-step explanation:
Simplify: ( 36-4 )*5
Answer:40
Step-by-step explanation:
[(√36-4)³]*5
[(6-4)³]*5
(2)³ * 5
= 2*2*2 = 8
8*5 = 40
What is the measure in each angle? A? B? C?
Answer:
∠A = 48°, ∠B = 48°, and ∠C = 84°
Step-by-step explanation:
AB = CB Given
m ∠A = m ∠C If opposite sides are =, then those opposite angles are =
6(x - 3) = 4(x + 1)
6x - 18 = 4x + 4
2x - 18 = 4
2x = 22
x = 11
m ∠A = 6(11 - 3) = 6(8) = 48°
m ∠C = 4(11+ 1) = 4(12) = 48°
The sum of the angles in a triangle = 180°
48° + 48° m ∠B = 180°
96°+ m ∠B = 180°
84° = m ∠B
This graph represents −3x+y=−4. Which ordered pair is in the solution set of −3x+y≥−4?
Answer: When an inequality shows a multiple of -4 = -8 or -16 then we know it is a parallel line and therefore could be a straight line continuation - we see -3(1) -(5) = -8 and -3(5) -(1) = -16 therefore (1 -5) and (5 -1) are both ordered pairs
-3 (2) + 2 = -4 shows 2 and 2 are an ordered pair of system -3 (0) -4 = -4 shows 0 and -4 is an ordered pair of the system
Step-by-step explanation:
-3x + y = - 4 when we +3x both sides we get y = 3x - 4 so when y intercept starts in -4 we an assume if x is positive and as x is top heavy and not equal to 1 we have a fraction x = (y + 4) / 3 and the only thing we hanged to find this fraction value for x was to eliminate 3 and separate x through dividing by x to see other coordinates see attachment for ordered pairs by seeing each coordinate on the graph
A paper airplane was thrown from the top of a tall building.The height of the paper airplane above the ground can be found using the function `y=-1.5x+60` , where `x` is the time in seconds the airplane has been in the air.
Jayden made this table to figure out how high the plane was at different times.
0 | 60
10 | 45
20 | 30
30 | 15
40 | 0
How would the equation `y=-1.5x+60` change if the height at 0 seconds was 75?
The new equation will be [tex]y=-1.5x+75[/tex]
Since the height at 0 seconds will be 75, it means that 15 has been added to the height at each time instant.
As a result, the gradient will remain [tex]-1.5[/tex], but the y-intercept will become 75. Therefore the equation will only change at the intercept.
The new equation will be [tex]y=-1.5x+75[/tex]
Learn more about slopes and intercepts: https://brainly.com/question/1201010
Please help me
Thank you very much appreciate
Answer:
D
Hope it helps!
A rectangular field has the area equal to that of a square field of side 60m.if the breadth of the rectangular field is 32m, find it's length
Given -
Area of rectangular field = Area of square field side of square = 60mbreadth of the rectangular field = 32mTo find -
length of the rectangular fieldSolution -
Area of square = side × side = (60 × 60)m² =
Area of square =3600m²
Hence,
Area of rectangular field = Area of square field = 3600m²
Area of rectangular field = l × b = 3600m²
=> l × 32m = 3600m²
=> l = [tex]\sf{\frac{3600}{32}\:m}[/tex]
=> l = 112.5m
so, the length = 112.5m
The graph represents the relationship between the number of rocks a child collects, r, over a number of weeks, w. Which function can be used to determine the number of rocks, r, a child will collect after w weeks? r = 15w + 5 r=115w+5 r = 5w + 15 r=15w+15
♡ The Question/Task(s)! ♡
-Which function can be used to determine the number of rocks, r, a child will collect after w weeks?
*୨୧ ┈┈┈┈┈┈┈┈┈ ୨୧*
♡ The Answer(s)! ♡
-The answer is, r = 5w + 15!
I apologize in advance if the answer is incorrect! ♡
*୨୧ ┈┈┈┈┈┈┈┈┈ ୨୧*
♡ The Explanation(s)/Step-By-Step! ♡
-No Explanation(s)/Step-By-Step provided!
*୨୧ ┈┈┈┈┈┈┈┈┈ ୨୧*
♡ Tip(s)! ♡
-No Tip(s) Provided!
translate this sentence into an equation twice the difference of a number and 5 is 9
Answer:
2(x-5)=9
Step-by-step explanation:
x is used for "a number"
