Answer:
It would take Lena 9 hours.
Step-by-step explanation:
Looking at the problem I can do 696/12 to get the number of miles per hour she is traveling which is 58. With this number, I can take 522/58 to get 9 hours.
Answer:
Step-by-step explanation:
Remark
The best way to do this is to set up a proportion. It can be done by using d = r * t twice, but a more direct way is to use the proportion.
Formula
distance1 / time1 = distance2 / time2
Givens
distance1 = 696 miles
time1 = 12 hours
distance2 = 522 miles
time2 = x
Solution
696/12 = 522/x Cross multiply
696 * x = 522* 12 Combine the right
696 * x = 6264 Divide by 696
x = 6264/696
x = 9 miles
Determine the number of terms n :
a 1 = 15, a n = 79, S n = 423
Answer:
The number of terms in the sequence is 9
Step-by-step explanation:
We want to get the number of terms
Mathematically, we have the formula for the sum of terms in an arithmetic sequence as
[tex]sn = \frac{n}{2} (a + 1)[/tex]
a represents the first terms, and i represent the last term
[tex]423 = \frac{n}{2} (15 + 79) \\ \\ 423 \times 2 = 94(n) \\ \\ 94n = 846 \\ \\ n = \frac{846}{94} \\ \\ n = 9[/tex]
Any help please maths :)
Answer:
D is the cubic function graph
A car rental company charges a $50 flat fee and an additional $20 per day. A
second company also charges a flat fee plus an additional cost per day. This
table shows the cost to rent a car from the second car company.
Days
Cost
2
$130
4
$160
5
$175
Answer:15
Step-by-step explanation:
I need help on this plz
help! please don't get it wrong
Solving systems of equations by graphing. how do you do this
Answer:
Solve systems of equations by graphing
A system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. The solution of such a system is the ordered pair that is a solution to both equations. To solve a system of linear equations graphically we graph both equations in the same coordinate system. The solution to the system will be in the point where the two lines intersect.
Example
[tex]\left \{ {{y=2x+2} \atop {y=x-1}} \right.[/tex]
Graph the equations in a coordinate plane
The two lines intersect in (-3, -4) which is the solution to this system of equations.
Step-by-step explanation:
18 ≥ -2x
i cant solve this
Answer:
[tex]x\geq -9[/tex]
Step-by-step explanation:
Answer:
x ≥ - 9
Step-by-step explanation:
Given
18 ≥ - 2x
Divide both sides by - 2, reversing the symbol as a result of dividing by a negative quantity,
- 9 ≤ x , that is
x ≥ - 9
Find all the missing sides and angles of this triangle.
А
7
B
70°
Show your work for full credit. You are finding the measure of angle A, side length of AC and side
Show Your Work
I
Answer:
A = 20°
AC = 6.6
BC = 2.4
Step-by-step explanation:
Given:
B = 70°
C = right angle = 90°
AB = 7
Required:
A, AC, and BC
Solution:
✔️A = 180 - (90 + 70) (sum of triangle)
A = 20°
✔️Use trigonometric function to find AC:
Refernce angle = 70°
Opp = AC
Hypotenuse = 7
Apply SOH,
sin 70 = Opp/Hyp
sin 70 = AC/7
7 * sin 70 = AC
6.57784835 = AC
AC = 6.6 (nearest tenth)
✔️Use trigonometric function to find Bc:
Refernce angle = 70°
Adj = BC
Hypotenuse = 7
Apply CAH,
cos 70 = Adj/Hyp
cos 70 = BC/7
7 * cos 70 = BC
2.394141 = BC
BC = 2.4 (nearest tenth)
Your friend is looking at laptops for college, and is comparing the different
screen sizes. Use the diagram and formula below to find the height of the
laptop screen. Round your answer to the tenths place.
d = √w²+
d= 13.3in
h
w = 11.3
A. h = 7.0 inches
B. h = 12.9 inches
C. h = 10.7 inches
D. h = 9.9 inches
Given:
[tex]d = 13.3\ in[/tex]
[tex]w = 11.3\ in[/tex]
[tex]d=\sqrt{w^2+h^2}[/tex]
To find:
The value of h.
Solution:
We have,
[tex]d=\sqrt{w^2+h^2}[/tex]
Substituting [tex]d = 13.3, w = 11.3[/tex], we get
[tex]13.3=\sqrt{11.3^2+h^2}[/tex]
Taking square on both sides.
[tex]176.89=127.69+h^2[/tex]
[tex]176.89-127.69=h^2[/tex]
[tex]49.2=h^2[/tex]
Taking square root on both sides, we get
[tex]\pm 7.01427=h[/tex]
[tex]h\approx \pm 7[/tex]
Height cannot be negative so [tex]h=7\ in[/tex].
Therefore, the correct option is A.
What does the standard form of a linear equation require?
A)No fractions
B)A must be negative
C)B must be positive
Answer:
the standard form of a linear equation required is B must be positive
Select the correct answer.
On average, Adrian's salary is 1.05 times the previous year's salary.
If Adrian Initially has $52,000 and n denotes the number of years, which recursive equation gives Adrian's annual income, f(n), as a function
the year?
O A. f(1) = 52,000
f(n) = 1.05 · (n − 1), for n > 2
OB. f(1) = 52,000
= 1.05 + f(n - 1), for n > 2
OC (1)
= 1.05
f(n) = 52,000 . f(n − 1), for n > 2
OD.
f(1) = 1.05
f(x) = 52,000 + f(n - 1), for n > 2
Answer: Answer A on Edmentum
Step-by-step explanation:
The correct option is First option i.e. f(1) = 52,000; f(n) = 1.2 · f(n - 1) - 0.30 · f(n - 1) + 2,300; for n ≥ 2
What is Percentage?Percentage can be calculated by dividing the value by the total value, and then multiplying the result by 100.
On average, his salary is 1.2 times the previous year's salary:
f(n)=1.2 X f(n-1)
30% of his income is budgeted for rent:
Rent: R = 30%f(n-1)
= 30 X f(n-1)/100
R = 0.30 X f(n-1)
In addition to his salary, Adrian's income increases by $2,300 each year as a result of gifts from family members:
Gifts: G=2,300
If Adrian initially has $52,000:
n=1, f(n)=f(1)=52,000
If n denotes the number of years, which recursive equation gives Adrian's annual income as a function of the year, f(n)?
f(1)=52,000
f(n)=1.2 X f(n-1)-R+G; for n ≥ 2
f(n)=1.2 X f(n-1)-0.30*f(n-1)+2,300; for n ≥ 2
Thus, the correct option is First option i.e. f(1) = 52,000; f(n) = 1.2 · f(n - 1) - 0.30 · f(n - 1) + 2,300; for n ≥ 2
Learn more about Percentage from:
https://brainly.com/question/13450942
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tbh ik this is so easy but i’m too tired to do anything
Froyo, a frozen yogurt store, has designed a cylindrical container for a new vanilla
yogurt. The container is 20 cm high and holds 2L. What is its radius, to the nearest
tenth of a centimeter?
Find the equation of the line by using y=mx+b
I tried to put the answer but it keeps asking for more
Answer:
Step-by-step explanation:
y=mx+b
m=(y2-y1)/(x2-x1), we have points (-3,6) and (9,-5)
m=(-5-6)/(9-(-3))
m=-11/12 so now we have
y=-11x/12+b, using point (9,-5) we can solve for b
-5=-11(9)/12+b
-5=-99/12+b
b=39/12
y=(-11x+39)/12
That is the line, m=-11/12 and b=39/12 or as a decimal b=3.25. You had b so not sure what the problem is. Though the question in the picture asks what the line is. The line is
y=-11x/12+13/4 so maybe they want the entire function instead of entering what b is.
Thomas drew a triangle which has one angle that measures more than
90° and two angles that each measure less than 90°. What kind of
triangle did he draw?
Answer:
obtuse triangle
Step-by-step explanation:
it is obtuse because it needs to have all 3 sides to be acute to be an acute angle and it doesn't have any 90° angles so it has to be obtuse. Also because to be an obtuse it has to have 2 acute angles and 1 obtuse angle. Hope this helps!!
Zach has a box with a volume of 48 cubic units. Which could be the dimensions of Zach's box?
Select all that apply.
A. 2 units wide, 3 units long, 8 units tall
B. 5 units wide, 8 units long, 1 unit tall
C. 4 units wide, 6 units long, 2 units tall
D. 3 units wide, 5 units long, 3 units tall
The slope and the y-intercept of a line are -3/8 and 1/2 respectively. Write the equation of the line.
Convert the following equation into standard form.
y=-2x/9+2
PLZ HELP ILL GIVE BRAINLY
Answer:
2 x + 9 y = 18
Amy just put new tires on her car. If the wheels have a diameter of 8 inches, about how far does the wheel travel in 2 revolutions?
Answer:
50.24 in
Step-by-step explanation:
Whats up ReaperGodofDeath which one Black butler or Black clover
Answer: ??????????????
Step-by-step explanation:
Answer:
BLACK BUTLER cause we Reapers gotta stick together
Step-by-step explanation:
Find the circumference of a circle that has an area of 153.86 cm.
Answer:
C=[tex]14\pi[/tex] or ≈43.96cm
Step-by-step explanation:
Start by figuring out the Area of the circle to get the radius (r)
Area (A)=153.86 cm
A=[tex]\pi r[/tex]²
153.86=[tex]\pi[/tex]r²
153.86÷[tex]\pi[/tex]=r²
49=r²
√49= r
r= 7cm
Next insert r=7cm into the Circumference equation of a circle
C=2[tex]\pi[/tex]r
C= 2×[tex]\pi[/tex]×7
C=14[tex]\pi[/tex] or C=43.96cm
A television screen, length is 16 1/2 inches, width is w inches, and area is 462 square inches. Select all THREE equations that represent the relationship of the length, width, and area of the television.
Answer:
it's B, C, and D
Step-by-step explanation:
A. w ⋅ 462 = 16 1/2
not A
w * a ≠ l
B. 16 1/2 ⋅ w = 462
is B
l * w = a
C. 462 ÷ 16 1/2 = w
is C
a / l = w
D. 462 ÷ w = 16 1/2
is D
a / w = l
E. 16 1/2 ⋅ 462 = w
not E
l * a ≠ w
In ΔRST, the measure of ∠T=90°, TR = 58 feet, and ST = 19 feet. Find the measure of ∠S to the nearest degree
Answer: 72
Step-by-step explanation:
\tan S = \frac{58}{19}
tanS=
19
58
S=\tan^{-1}(\frac{58}{19})
S=tan
−1
(
19
58
)
S=71.862\approx 72^{\circ}
S=71.862≈72
Answer:
72
Step-by-step explanation:
delta math said it was correct
Find the slope of the line
Answer:
2/3
Step-by-step explanation:
y2-y1/
x2-x1
2-(-2)/
3--3
4/6=2/3
In an animal sanctuary, there are 48 deer and 64 monkeys. Find the ratio of deer to monkeys.
Which expression can be simplified as 1/18 n?
what's 100×60÷1×86-89
Answer:
100×60 ÷ 1× 86-89
6,000 ÷ (-3)
-2000
if the two adjacent angles are supplementary then their outer sides are???
Answer:
If the bisectors of two adjacent angles are perpendicular to each other, are the angles then supplementary angles?
Suppose two angles ABC and CBD are x and y.
x+y = 180 deg.
The bisector of angle ABC (BE) and the bisector of angle CBD (CF) will form angle EBF = (x/2)+(y/2) = 180/2 = 90 deg.
Conclusion: If the angle bisectors of two adjacent angles are perpendicular to eaxh other, the adjacent angles are supplementary angle
Adjacent angles are when the 2 angles have a common vertex and a common arm.
if the exterior sides of 2 adjacent angles are perpendicular, then the angles are complementary angles.
Then the sum of the 2 adjacent angles is a right angle - 90°.
When 2 angles add up to 90°, they are called a pair of complementary angles.
Step-by-step explanation:
Answer: Hello: ) ✨ If the bisectors of two adjacent angles are perpendicular to each other, are the angles then supplementary angles?
Suppose two angles ABC and CBD are x and y.
x+y = 180 deg.
The bisector of angle ABC (BE) and the bisector of angle CBD (CF) will form angle EBF = (x/2)+(y/2) = 180/2 = 90 deg.
Conclusion: If the angle bisectors of two adjacent angles are perpendicular to eaxh other, the adjacent angles are supplementary angle
Adjacent angles are when the 2 angles have a common vertex and a common arm.
if the exterior sides of 2 adjacent angles are perpendicular, then the angles are complementary angles.
Then the sum of the 2 adjacent angles is a right angle - 90°.
When 2 angles add up to 90°, they are called a pair of complementary angles.
Have an amazing Day/Night <3 .
(m2 – 7m – 6) (7m2 – 3m – 7)
PLZ HELP URGENT WILL GIVE BRAINLIEST
Answer:
7m^4-52m^3-28m^2+67m+42
Answer:
Step-by-step explanation:
HELP ASAP
Keiko divided 5 cups of milk into 1/4 cup portions. How many 1/4 cup portions did Keiko have?