Answer:
-2/7
Step-by-step explanation:
solve for x so -12+ 8 = 30x - 16x so -4 = 14x so x = -4/14, so x = -2/7
Answer:
x=-2/7
Step-by-step explanation:
you have to let x be on one side so you subtract -30x to each side.
16x-30x-12=30x-30x-8
-14x-12=-8
now you gotta add 12 to each sides to delete -12.
-14x-12+12=-8+12
-14x=4
divide -14/14x=14/4
-x=2/7
x=-2/7
hope this helps!
Near the equator, the Earth rotates approximately 3 4 kilometers every 3 2 seconds. What is the speed of Earth's rotation near the equator?
Answer:
Speed = 1.0625 km / sec
Step-by-step explanation:
Distance = 34 kilometers
Time = 32 seconds
Speed = ?
The relationship between these quantities is given as;
Speed = Distance / Time
Inserting the values;
Speed = 34 km / 32 sec
Speed = 1.0625 km / sec
Write the equation of each ellipse in standard form with the given characteristics.
Answer:
Step-by-step explanation:
The foci are horizontally aligned.
horizontal ellipse:
(x-h)²/a² + (y-k)²/b² = 1
center (h,k)
vertices (h±a,k)
length of minor axis = 2b
foci (h±c,k), c² = a²-b²
Apply your data and solve for h, k, a, and b.
foci (±3√19, 6)
h = 0
k = 6
Length of minor axis = 2b = 10
b = 5
foci (h±3√19, 6)
c = 3√19
c³ = a² - b²
171 = a² - 25
a² = 196
x²/196 + (y-6)²/25 = 1
help with all 3 of those please
First Problem:
Equation -- 180 = x + 168
x = 12 Degrees
Second Problem:
Equation -- 180 = x+108
x = 72 Degrees
Third Problem:
Equation -- 180 = x +82
x = 98
can someone please explain for question 4.a) only please
Answer:
Sample 1: P(R)=6/800
Step-by-step explanation:
The formula of probability is = no of possible cases upon number of total cases
Can someone please help? Also solve for the answer and not just give me the answer. I need to show my work so can you please show the work. Thank you ❤️
Answer:
The point is not a solution of the two equations
Step-by-step explanation:
2x+y=4
y=-2x+4
Subsitute it into the other equation
2x+7(-2x+4)=14
2x-14x+28=14
-12x+28=14
-12x=-14
x= 7/6 or 1.17
Plug this back into the original equation
y=-2x+4
y=-2(1.17)+4
y=1.66
The solution of these two equations is (1.17, 1.66) which doesn't match the given point of (4,-4), so the point is not a solution of the two equations.
Are 2/3 and 3/2 reciprocals
Answer: Yes, They Are.
Step-by-step explanation:
ZA=
Round your answer to the nearest hundredth.
A
7
4
B
The measure of angle A from the given right angle triangle ABC is 55.15°.
What are heights and distances?Heights and Distances is a study about the applications of Trigonometry. It has many real-life applications, such as measuring the object’s height, depth of the object, the distance between two celestial objects etc. The formulas and the ratios of trigonometry are helpful in the study of heights and distances.
From the given right angle triangle ABC, we have
AB=7 units and AC=4 units
Now, cosA=AC/AB
cosA=4/7
Solve the trigonometric equation by isolating the function and then taking the inverse. Use the period to find the full set of all solutions.
A= 55.15°
Therefore, the measure of angle A is 55.15°.
To learn more about the heights and distance visit:
brainly.com/question/24271007.
#SPJ1
Tell how much each person gets when they share equally 4 friends share 7 pounds of cashews
Answer:
They each get 1 3/4 pounds of cashews
Step-by-step explanation:
7 ÷ 4 = 1.75
1.75 ( 1 3/4)
simplify 5√3 + 2√27 plzzz
Answer:
[tex]11 \sqrt{3} [/tex]
Step-by-step explanation:
[tex]11 \sqrt{3} [/tex]
hope it helps you
Answer:
11[tex]\sqrt{3}[/tex]
Step-by-step explanation:
Using the rule of radicals
[tex]\sqrt{a}[/tex] × [tex]\sqrt{b}[/tex] ⇔ [tex]\sqrt{ab}[/tex]
Simplify [tex]\sqrt{27}[/tex]
[tex]\sqrt{27}[/tex]
= [tex]\sqrt{9(3)}[/tex]
= [tex]\sqrt{9}[/tex] × [tex]\sqrt{3}[/tex]
= 3[tex]\sqrt{3}[/tex]
Then
5[tex]\sqrt{3}[/tex] + 2(3[tex]\sqrt{3}[/tex] )
= 5[tex]\sqrt{3}[/tex] + 6[tex]\sqrt{3}[/tex]
= 11[tex]\sqrt{3}[/tex]
URGENT PLEASE HELP!!!! GIVING BRAINLIEST!! If you answer this correctly ill answer some of your questions you have posted! (39pts)
Answer:
The first transit on one side of the trench is 18 ft higher than the other side of the trench. The transit is set at 4.5 above ground, therefore the transit lens is 18' + 4.5' = 22.5' above the location on the other side of the trench. The angle of depression is the angle formed by the horizontal and the line of sight to the other side and it is given as 31°. This forms a right angle triangle with height of 22.5' and an interior angle of 31°, Then
tan( 31°) = Height / base, with the base representing the width of the trench
base = Height / tan(31°) = 22.5' / tan(31°) = 37.45' is the width of the trench
Answer:
So the trench is 37.5 feet wide
Step-by-step explanation:
The trench with telescope is 18 feet higher than the other.
The height of telescope is 4.5 feet.
Total height = 18 + 4.5 = 22.5
Now, we can see in the figure that the distances between telescope and the opposite trench, the height and width makes a right angled triangle.
So, perpendicular = total height = 22.5
base = wideness of the trench
We know,
Tan 31 = p/b
tan 31 = 22.5/b
b = 22.5 / 0.6
b = 37.5
39 99/ 100 as a decimal
Answer:
39.99
.................
Answer:
39 99
Step-by-step explanation:
39 99/ 100 = (39 x 100 + 99) / 100
= 3999/100
= 39.99
The length of one diagonal of a rhombus is 8 cm. The area of the rhombus is 72 cm2. What is the length of the other diagonal of the rhombus?
Answer:
18 cm
Step-by-step explanation:
From the question above,
Area of a rhombus
A = d₁d₂/2.................. Equation 1
Where A = area of the rhombus, d₁ = length of one diagonal, d₂ = length of the other diagonal
make d₂ the subject of the equation
d₂ = 2A/d₁............... equation 2
Given: A = 72 cm², d₁ = 8 cm
Substitute these values into equation 2
d₂ = (2×72)/8
d₂ = 144/8
d₂ = 18 cm.
Throughout Lewis Carroll's book, Alice's Adventures in Wonderland, Alice's size changes. Her normal height is about 50 inches tall. She comes across a door, about 15 inches high, that leads to a garden. After drinking a potion, Alice's height changes to 10 inches so she can visit the garden. How tall would the door have been in Alice's normal world? Justify your answer and provide mathematical evidence.
Answer:
jsjshisjsjiiiiiii>iiiiuuuu
Calculate the pay for the following day of a
weekly time card given a wage of $11/hr.
Name
Week of:
Morning
In
Out
Monday 08:15 12:15
Afternoon
In Out
13:00 17:30
pay = $[?]
Round your answer to the nearest hundredth.
Enter
can someone help, complementary angles are angles that add up to a sum of 90°
Answer:
option 3..
aef+fed=90, aeg+ceg=90
Solve for the unknown values.
Answer:
x=85
y=45
Step-by-step explanation:
using the sum of a straight angle:
x+95=180
x=85
then we can use the sum of the inner angles of a triangle:
50+85+y=180
y=45
Which table has a constant of proportionality between y and wof
Choose 1 answer
a _______________________________
Answer:
a
Step-by-step explanation:
2 x 4 is 8
2.5 x 4 is 10
3 x 4 is 12
Hey, I need some help on this question
Answer:
its A
Step-by-step explanation: sorry if wrong but if i am right mark as brainliest please.
Answer:
a squared + b squared = c squared
option 1 is the right answered. pythagoras theorum basically helps you find the third side/line of the triangle a^2 + b^2 = c^2.
Step-by-step explanation:
i’ll give brainliest please help
Answer:
D. 4.5
Step-by-step explanation:
Answer:
(4,5)
Step-by-step explanation:
estimait 39 timse 24
The Answer is 1,000
Plsss help!
I will give brainliest
Answer:
x= +2, -2
hope it helps you
Help please!!
If each square of the grid below is 0.5 cm by 0.5 cm}, how many centimetres (cm) are in the perimeter of the blue figure?
Answer:
The perimeter of this figure can be found by counting the number of 0.5 lines it takes to go one full circle around the figure.
In this case, there are 42 of these 0.5 lines.
So, if there are 42 of these 0.5 lines, the perimeter of the figure would just be: 42 times 0.5, which is equal to 21 cm.
Let me know if this helps!
Answer:
its aops. 21
Step-by-step explanation:
Spencer wants to burn 450 calories while biking. Biking burns about 10 calories per minute. When Spencer goes biking, he usually plans to stop and rest for about 15 minutes
Answer: 60 minutes
Step-by-step explanation: 450 divide by 10 = 45
45+15=60
Question 5 20 pts If the radius of a circle is 28 cm, what is the circumference? (Use 3.14 for pi)
Answer:
The circumference of a circle can be found by multiplying pi ( π = 3.14 ) by the diameter of the circle. ... Use 3.14 for pi
Answer:
175.93
Step-by-step explanation:
In the inequality 10x + 18 <_238 x represents the number of days Matt will be able to work during the summer. Which phrase MOST accurately describes that number of days?
A. exactly 22 days
B. more than 22 days
C. at most 22 days
D. less than 22 days
25 PTS!!
Answer:(c)
Step-by-step explanation:
Given
Inequality is [tex]10x+18\leq 238[/tex]
Subtract [tex]18[/tex] from both side of the inequality
[tex]\Rightarrow 10x+18-18\leq 238-18\\\Rightarrow 10x\leq 220[/tex]
divide both sides by 10
[tex]\Rightarrow \frac{10x}{10}\leq \frac{220}{10}\\\Rightarrow x\leq 22[/tex]
Therefore, maximum value of x can be 22 i.e. at most 22 days
hElPpPpP mEeHhH TvT <3
Answer:
i think its b srry if im wrong
Step-by-step explanation:
If R(y=-1 ° T<0,3>)(X) → X'(3, -2), what were the coordinates of X?
[If (r, ) are polar coordinates of the point (x, y) with r > 0, note that not a. ... + y2) In(x2 + y2) (x,y) → (0,0) DNE X Find h(x, y) = g(f(x, y)). g(t) = t + In(t), f(x, y) = 3 - xy 4 ...
Please answer correctly if you can
Answer:
the answer is 40/100 × 20
In the figure find the value of x
Answer:
I'm not that sure but I really feel like it's 15
hhhhhffffffffggtrrrrrrrrrx yd pleae only answer if you know.
Answer:
Blue balloons : 63, 7, 14
Red balloons : 45, 5, 10
14 balloons in a group that has 10 red balloons
Step-by-step explanation:
First, 63/9 = 7, so 45/9 = 5.
Second, 5 x 2 = 10, so 7 x 2 = 14
Hope this helps!