Answer:
40 people came to the Center to hike
Step-by-step explanation:
30 people took classes
22 did bird watching
12 did both
to solve, take 12 and subtract it from each one:
⇒ 30 - 12 = 18
⇒ 22 - 12 = 10
18 people only took classes
10 people only did bird watching
12 people did both
18 + 10 + 12 = 40
The equation of the line of best fit of a scatter plot is y = −7x − 2. What is the the y-intercept? (4 points)
a. −7
b. −2
c. 2
d. 7
Answer:
The answer is B or -2
Step-by-step explanation:
Answer: -2
Step-by-step explanation:
The y-intercept is the number that doesn't have a variable behind it in this form but if it does it's y.
A navy cruiser detects a nuclear submarine that is 2500 feet from the cruiser. The angle between the water level and the submarine is 15.5 degrees. How deep is the submarine?
Answer:
Depth of the submarine = 668.09 feet
Step-by-step explanation:
From the figure attached,
In triangle ABC,
Distance between a navy cruiser and a nuclear submarine = 2500 feet
Angle between the water level and the submarine = 15.5°
By applying sine rule in the given triangle,
sin(∠BAC)° = [tex]\frac{BC}{AC}[/tex]
sin(15.5°) = [tex]\frac{BC}{2500}[/tex]
BC = 2500[sin(15.5)]
BC = 668.09 feet
Therefore, submarine is 668.09 feet deep in the sea.
4
10
-6
-544
32"
2 3 4 5 6
8
9 10
O y = -0.2(x + 3)2 – 4
Oy= -0.2(x – 3)2 - 4
Submit Answer
O y = 0.2(x + 3)2 - 4
O y = 0.2(x - 3)2 – 4
Answer:
10 -6 -544 32" 2 3 4 5 6 8 9 10 O y = -0.2(x + 3)2 – 4 Oy= -0.2(x – 3)2 - 4
Help pls I really need to turn this in !!!!!!!!!
Answer:
g > 8
Step-by-step explanation:
25g > 200, so divide 200 by 25, and you get 8. Since the original symbol was >, keep it.
HELP PLEASE!
Look at the image for info!
Can someone please help me in this one??
Find the area of a circle that has a radiousof 10 cm.
Formula that might help you today.
Area of a Circle. A = II r2
I promise if you help me with this i'll give you 5 stars!?
Answer:
This is your answer ☺️☺️☺️
how many dollars are in 50 quarters
Answer:
There are $12.50 dollares in 50 quarters
Step-by-step explanation:
50 / 4 = 12.5
Plz mark as brainliest if this helped! Have a nice day!!!
-Lil_G
Answer:
12.50
Step-by-step explanation:
quarters = 25 cents
1 dollar = 4 quarters
50 ÷ 4 = 12.5
12 dollars and 50 cents
PLEASEE SOMEONE HELP ME ON THIS ITS TODAY IN A COUPLE HOURS!!!
Answer:
[tex]\displaystyle y = 2.90717[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityTrigonometry
[Right Triangles Only] SOHCAHTOA [Right Triangles Only] sinθ = opposite over hypotenuseStep-by-step explanation:
Step 1: Identify
Angle θ = 20°
Opposite Leg = y
Hypotenuse = 8.5
Step 2: Solve for y
Substitute in variables [sine]: [tex]\displaystyle sin20^\circ = \frac{y}{8.5}[/tex][Multiplication Property of Equality] Multiply 8.5 on both sides: [tex]\displaystyle 8.5sin20^\circ = y[/tex]Evaluate: [tex]\displaystyle 2.90717 = y[/tex]Rewrite: [tex]\displaystyle y = 2.90717[/tex][Help asap, will mark brainliest] In the figure, line a is parallel to line b.
Answer:
m <5 = 65°
m<8 = 115°
Step-by-step explanation:
m<2= m<5 = 65° (vertically opposite angles are equal)
m<5 + m<4 = 180 (co-int angles, parallel lines)
65+ m<4 =180
m<4 = 115°
Therefore
m<4=m<8 = 115° (vertically opposite angles are equal)
Answer:
m<5 = 65 degrees m<8 = 115 degrees
Step-by-step explanation:
m<2 = 65 degrees
m<2 = m<5 so
m<5 = 65 degrees
A line is 180 degrees, so
180 degrees - 65 degrees = 115 degrees
m<8 = 115 degrees
PLZ help explain how to graph the inequality 8≥y
Answer: A solid horizontal line at y=8. Everything above the line should also be shaded.
Step-by-step explanation:
The line under the greater than sign means it includes any value of y greater than or equal to eight.
A circle has a circumference of 3.14 units.
What is the diameter of the circle?
inits
Answer:
D = 1
Step-by-step explanation:
0.99949
round the answer so its 1
diameter = 1
The bottom of a cylinder has a circumference of about 60 in. What is the approximate diameter of the cylinder? Round to the nearest tenth. Use 3.14 for π . Enter your answer in the box.
Answer:
19.1 inches
Step-by-step explanation:
Circumference divide by diameter = 3.14 (C/d = 3.14)
60/d = 3.14
multiply both sides of the equation by d
60 = 3.14d
divide both sides by 3.14
d = 60/3.14
d = 19.108
d = 19.1
HELP PLEASE!!
Planes that fly at high speeds and low elevations have radar systems that can determine the range of an obstacle and the angle of elevation to the top of the obstacle. The radar of a plane flying at an altitude of 20,000 feet detects a tower that is 25,000 feet away, with an angle of elevation of 1∘.
a. How many feet must the plane rise to pass over the tower?
The plane must rise at least _____feet to pass over the tower.
Question 2
b. Planes cannot come closer than 1000 feet vertically to any object. At what altitude must the plane fly in order to pass over the tower?
The plane must fly at an altitude of at least ____ feet to pass over the tower.
Answer:
a. About 436 ft
b. 21,436 feet
Step-by-step explanation:
a. Notice how the plane's rise (h), its horizontal distance from the tower, and its distance to the top of the tower (25,000 ft) all form a right triangle. If we want to find h, we need some way of putting it in an equation with the two quantities we already know: the angle of elevation and the distance to the top.
In the language of right triangles, we want to combine an angle, the side opposite the angle, and the hypotenuse. The sine function is perfect for this, since [tex]\sin{\theta}=opp/hyp[/tex]. For our problem, opp = h, hyp = 25,000, and θ = 1°, so our equation becomes
[tex]\sin{1^\circ}=h/25000[/tex]
or equivalently
[tex]h=25000\sin{1^\circ}\approx436[/tex] ft (rounded up to the nearest whole foot)
b. If the plane is currently flying at 20,000 feet, it needs to rise about 436 feet to clear the top of the tower, and another 1,000 feet to follow safety protocol, making its required altitude 20,000 + 1,000 + 436 = 21,436 feet.
Aimee wants to order some DVDs from Amazon. Each DVD costs $8.49 and shipping for the entire order is $5. She has only $70 to spend. How many DVDs can she order?
Answer:
7 cds
Step-by-step explanation:
8.49*x +5=70 => 8.49*x=65 => x= 65/8.49 => x= 7 approximately
A restaurant chef made 1 7/8 pints of mushroom soup. Each bowl of soup holds 3/8 of a pint. How many bowls of soup will the chef be able to fill?
Answer:
5 bowls
Step-by-step explanation:
Total number of bowls = total pints / capacity of each bowl
17/8 ÷ 3/8
Convert 1 7/8 to improper fraction = 15/8
15/8 x 8/3 = 5 bowls
I need help with this plz
Answer: B
Step-by-step explanation:
[tex] {3}^{ - 1} - {4}^{ - 1} [/tex]
please answer if u only know the answer
Which value is a solution of the inequality 1/4 y
_ >8
20 points!!!
The figure in the diagram is composed of a semi-circle and an equilateral triangle. Find the total area of the figure.
A)
43.30 cm2
B)
51.4 cm2
C)
78.54 cm
D
82.57 cm
Area of equilateral triangle is =
[tex] \sqrt{3} \div 4 \times s {}^{2} [/tex]
Root 3/4*10*10
Root 3/4*100
Root 3*25
25 root 3
Area of semicircle =1/2*22/7*5²
=1/2*22/7*25
(11*25)/7
275/7
=39.28
Adding areas of triangle and semicircle
25 root 3 +39.28
Order the set of numbers from least to greatest:
Answer:
-5/6, -5, -√26, -31/6
Step-by-step explanation:
-5/6=-0.833
-5=-5.0
-√26=-5.09
-31/6=-5 1/6=-5.1667
3) Starting at the origin, go
right 5 and down 3. What
ordered pair names this
point?
Pls help giving brainliest
Answer:
(5,-3)
Step-by-step explanation:
If the mother's name is Mrs.62,Her son's name is 52 & her daughter's name is 42 ,then what is the name of father????
Answer:
Either Mr.62 or 72
Because if her name is 62 that means thats his name, but also it went down 10 so therefore his name could be 10 above
Answer:
72
Step-by-step explanation: beacuse the mother is 62 so the fartheher has to be older
The midpoint between x and 27 is -3
Answer: x = -33
Step-by-step explanation:
27 + 3 = 30
-3 - 30 = -33
Answer:
-33
Step-by-step explanation:
I already took it TwT
HELP fr fr i only have til 1
Answer:
answer 3 i think sorry if im wrong
Step-by-step explanation:
a triangle has vertices on a coordinate grid at N(2,-6), O(-10,-6), and P(2,7). what's the length in units of NO
Find the slope of (12, 11) and (-9, 11)
Answer:
Slope(M)=0
Step-by-step explanation:
Slope(M)=0
NEED HELP ASAP PLZ HELP ME I WILL GIVE BRAINLIEST
Jalen bought 9/16 pound of blue cheese at the deli. He also bought 1 3/16 pounds of Swiss cheese. He estimates that the he bought about 1 3/4 pounds of cheese altogether. Which best describes Jalen's estimate?
A. It is not reasonable because 9/16 is about 3/4 and 1 3/16 is about 1 1/2, and 3/4 + 1 1/2 = 2 1/4.
B. It is reasonable because 9/16 is about 1/2 and 1 3/16 is about 1 1/4, and 1/2 + 1 1/4=1 3/4.
C. It is not reasonable because 9/16 is about 1 and 1 3/16 is about 1, and 1 + 1 = 2.
D. It is reasonable because 9/12 is about 1 and 1 3/16 is about 1, and 1 + 1 = 2/2, which is about 1 3/4.
Olivia weighed 7 pounds 6 ounces when she was born. How much Olivia weighed in ounces? a) 112 b) 118 c) 146 d) 160
Answer:
118 ounces
Step-by-step explanation:
1 pound = 16 ounces
7 pounds = 112 ounces
112 + 6 = 118 ounces
How does a NEGATIVE coefficient effect the parent function?
