Answer: 340
Step-by-step explanation:
Given: There are 15 plant-eating mammals for every 2 meat-eating mammals.
i.e. ratio of meat-eating mammals to plant eating animals = 2:15 or [tex]\dfrac2{15}[/tex]
ratio of meat-eating mammals to total population = [tex]\dfrac{2}{17}[/tex]
Total population: 2,900 (approx.)
The population of meat-eating mammals in the valley = [tex]\dfrac{2}{17}\times2900[/tex]
[tex]\approx341[/tex]
From the given options, the best estimate of the population of meat-eating mammals in the valley = 340
Which relation is a function?
Answer:
B
Step-by-step explanation:
The perimeter of a rectangular painting is 324 cm.
If the length of the painting is 87 cm, what is its width?
Answer:
The width is 75.
Step-by-step explanation:
First you divide 324 by 2, because the formula is: 2(l + w)
324 ÷ 2 = 162.
Then I would subtract 162 by 87 because of the formula. (To find out width)
162 - 87 = 75
The width is 75.
You can double check by in-putting them into the above formula.
2(75 + 87) = 324
x-4=12 What IS The Answer
Answer:
x = 16
Step-by-step explanation:
Add 4 to both sides, in order to isolate x:
x - 4 = 12
x = 16
So, x = 16
12+6÷4-3=
what's the answer?
Answer:
first, you would divide because P.E.M.D.A.S. so 6/4=1.5 then you would add 12 making it 13.5 and -3 is 10.5
Step-by-step explanation:
mr clean
Answer:
10.5
Step-by-step explanation:
Using PEMDAS,
12 + 6 / 4 - 3
12 + 1.5 - 3
13.5 - 3
= 10.5
what is the circumference of a circle with the radius of 5 cm use 3.14 for pi
Answer:
31.42cm
Step-by-step explanation:
2x+2x+2=4x+2 what does it equal
Answer:
4x+2=4x+2
Step-by-step explanation:
There is a rope running from the
top of a flagpole to a hook in the
ground. The flagpole is 6 meters
high, and the hook is 8 meters
from its base. How long is the
rope?
Can someone help me pls!
Answer:
The length of the rope = 8.94 meters
Step-by-step explanation:
The flagpole is 8 meters high
The hook is 4 meters from its base and the hook is in the ground
The flagpole and the ground ⊥ to each other
By using Pythagoras theorem:
The length of the rope = √(8² + 4²) = 5√5 = 8.94 meters
Which is not true about the graph of f(x) = |3x+2|
Answer: A
Step-by-step explanation:
Real numbers include negative numbers, and |3x+2| is always nonnegative.
help
I cant solve this question
Answer:
8 because if you add 1 ×8 you will get the answer 8
A triangle has sides with lengths of 6 feet, 16 feet, and 17 feet. Is it a right triangle?
Answer:
No.
Step-by-step explanation:
This is not a right triangle. Use the Pythagorean Theorem, [tex]a^{2} + b^{2}=c^{2} \\[/tex], but write it as [tex]c^{2}= a^{2}+b^{2}[/tex]. The hypotenuse would be 17 feet, so you can insert 17 as [tex]c^{2}[/tex]. [tex]a[/tex] and [tex]b[/tex] could be 6 or 16. It can be written either way. The simplified equation would be:
[tex]c^{2}=a^{2} +b^{2} \\17^{2} = 6^{2} + 16^{2} \\17^{2} = 36+ 256\\17^{2}= 292\\289\neq 292[/tex]
This isn't a right triangle.
I hope this helped :)
In Reggie's class, 75% of the students brought their lunches on
Monday. If 21 students brought their lunches, how many students
are in the class in all?
Answer:
28 students
Step-by-step explanation:
The easiest way to solve this would be to set up an equation.
We can start by naming x the number of students in Reggie's class.
Therefore, our equation would be:
0.75x=21
We can get this by knowing 75% of the students brought their lunches, and there were 21 students that did.
75% is equivalent to 75/100 which is 0.75.
Next, we can solve the equation.
0.75x=21
To do this, we have to isolate x.
We need to reverse the multiplication with division.
We can do this by dividing both sides by 0.75 (What you do to one side you must do to the other)
0.75x/0.75=21/0.75
x=28
This means that there are 28 students in the class.
Step-by-step explanation:
In Reggie's class, 75% of the students brought their lunches on
Monday. If 21 students brought their lunches, how many students
are in the class in all?
28 students
Answer this if you need points :)
hi bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
2(5x + 3x2 -4) - (6x - 9)
Answer: X=3
Step-by-step explanation:
and the answer to the problem is 4x+13
Answer: 4x+13
Solution Steps
2(5x+3×2−4)−(6x−9)
Multiply 3 and 2 to get 6.
2(5x+6−4)−(6x−9)
Subtract 4 from 6 to get 2.
2(5x+2)−(6x−9)
Use the distributive property to multiply 2 by 5x+2.
10x+4−(6x−9)
To find the opposite of 6x−9, find the opposite of each term.
10x+4−6x−(−9)
The opposite of −9 is 9.
10x+4−6x+9
Combine 10x and −6x to get 4x.
4x+4+9
Add 4 and 9 to get 13.
4x+13
What is the length, in units, of side B’C?
Answer: 1.25
Step-by-step explanation:
what is a adjacent angles???
Answer:
Two anglebare Adjacent when they have a common side and a common vertex (corner point) and don't overlap.
In the figure below, which answer choice correctly identifies the name of two line segments?
A.
B.
C.
D.
Answer:
C.
Step-by-step explanation:
A line segment has a bar above with no arrow heads.
Answer: C.
Work out the sizes of angles a, b and c. Give reasons for your answers.
Answer:
I think that you are wrong with that question
Answer:
a = 50° , b = 60° , c = 70°
Step-by-step explanation:
a and 130° are adjacent angles on a straight line and sum to 180° , then
a = 180° - 130° = 50°
b and 60° are vertically opposite angles and are congruent , so
b = 60°
the sum of the 3 angles in a triangle = 180° , that is
a + b + c = 180°
50° + 60° + c = 180°
110° + c = 180° ( subtract 110° from both sides )
c = 70°
What is the volume of a rectangular prism with dimensions of 7, 3, and 2?
Answer:
volume of a rectangular prism = length * breadth* width = 7*3*2= 42
PLS help Thank You !!!!
Answer:
4
Step-by-step explanation:
40 - (18÷3)²
40 - (6)²
40 - 36
4
i think this is right
Answer:
(b) Jo answered 4 which is the right answer.
Step-by-step explanation:
First, you have to remember PEMDAS which is parentheses, exponents, multiplication, division, addition, and subtraction.
In this case, you need to do 18/3 first because that is in the parentheses which always goes first.
Your answer should be 6 and you should write the question like this:
40-(6)^2
Now, you need to do the exponent next which is 6x6 not 6x2.
Remember, exponents, are the base which is the number 6 multiplied by itself to that many times so in this case, our base is 6 and the exponent says we need to have 6 multiplied to itself 2 times. 6x6
We like to say 6 to the power of 2 is 36.
So now you need to write the simplified equation to this:
40-36=n
Our n variable is a placeholder for our answer.
Now it's basic subtraction which is 40-36 = 4
Therefore, Jo had the right answer.
WILL GIVE BRAINLIEST!!!!!this stop sign is a regular octagon. The length of one side is 8 inches and the length of the apothem is 9 inches. Find the area of the stop sign.
Answer:
A≈309.02
Step-by-step explanation:
A=2(1+square root of 2)a^2
Solve for X, and show the equation you would use to solve.
Opposite interior angles are equal, so
4x - 10 = 2x + 20
2x - 10 = 20
2x = 30
x = 15
Answer:
4x-10=2x+20(being alternate angle)
or,4x-2x=20+10
or,2x=30
or,x=30/2
or,x=15
again,
4x-10 (putting the value of x)
=4×15-10
=60+10
=70
2x+20 (putting the value of x)
=2×15+20
=30+20
=50
-------------
solved !!!
-------------
A electronics store was charging $5.20 for a charging cable but raised the price 4%. The new price after the increase is $5.41.
Answer:
4%=$0.21
Step-by-step explanation:
5.20+(5.20/100x4)=5.41
5.20+(0.052x4)=5.41
5.20+0.208=5.41
5.41=5.41
So, 4%=$0.21
Completing proofs involving linear pairs.
Answer:
Try a,d,b,a
Step-by-step explanation:
PLS HELP 100POINTS BRAINLIEST
Answer: A Draw and label a net for the pyramid
Step-by-step explanation:
Because I know
how to do this stuff
#b
Area of triangle:-
1/2BH1/2(8)(10)4(10)40mm²Area of 4 triangles=40(4)=160mm²
Area of base:-
8²64mm²TSA:-
64+160224mm²need help with thiss
There are 10 sides that are equal to [tex]2a^{3} +a^{2} - a[/tex], and 2 sides equqal to [tex]4a^{4}[/tex]
Perimeter : [tex]20a^{3} + 10a^{2} - 10a + 8a^{4}[/tex]
Hello!
10 (2a³ +a² -a) + 2 ( 4a^4)
= 20a³ + 10a² -10a + 8a^4
= 8a^4 +20a³ -10a² -10a
the difference of 7 and the product of 4 and a is 11
Answer:
7 - 4a = 11
Hope this helps!
Solve for r.
6+ -6 = r
What’s r?
Answer:
0
Step-by-step explanation:
Find the meadin for these job salaries
[tex]Answer:[/tex]
The median is $[tex]40,000[/tex]
To find a median, find the averaging number, rather the middle number.
The middle number will always be your answer.
Write the equation of the line that passes through the points (-6,6) and (7,7)
Answer:
y = 1/13 x + 84/13 or 13y = x + 84
Step-by-step explanation:
m = (y2 - y1) / (x2 - x1)
= (7 - 6) / [(7 - (-6)]
= 1 / 13
Solve for b. Use (-6, 6)
y = mx + b
6 = 1/13 (-6) + b
6 = -6/13 + b
6 + 6/13 = b
84/13 = b
Substitute the m and b:
y = mx + b
y = 1/13 x + 84/13 or 13y = x + 84
PLEASE HELP 30 points
Select the correct answer.
Simplify the expression.
$768x845
OA. 4x2y $34
B. 4x2y2 3x2y
O c. 2xy2 +2x
OD. 4r3y +3.72
Reset
Answer:
A
Step-by-step explanation:
Given expression:
[tex]\sqrt[4]{768x^8y^5}[/tex]
Using rule [tex]\sqrt{ab} =\sqrt{a} \cdot \sqrt{b}[/tex]
[tex]=\sqrt[4]{768}\cdot \sqrt[4]{x^8} \cdot\sqrt[4]{y^5}[/tex]
Prime factorization of 768:
[tex]=\sqrt[4]{2^8\cdot3} \cdot \sqrt[4]{x^8} \cdot\sqrt[4]{y^5}[/tex]
[tex]=\sqrt[4]{2^8} \cdot \sqrt[4]{3} \cdot \sqrt[4]{x^8} \cdot\sqrt[4]{y^5}[/tex]
Using rule [tex]a^{b+c}=a^ba^c[/tex] :
[tex]=\sqrt[4]{2^8} \cdot \sqrt[4]{3} \cdot \sqrt[4]{x^8} \cdot\sqrt[4]{y^{4+1}}[/tex]
[tex]=\sqrt[4]{2^8} \cdot \sqrt[4]{3} \cdot \sqrt[4]{x^8} \cdot\sqrt[4]{y^4y^1}}[/tex]
[tex]=\sqrt[4]{2^8} \cdot \sqrt[4]{3} \cdot \sqrt[4]{x^8} \cdot\sqrt[4]{y^4} \cdot\sqrt[4]{y}[/tex]
Using rule [tex]\sqrt[a]{b^c} =b^{\frac{c}{a}}[/tex] :
[tex]=2^{\frac84}} \cdot \sqrt[4]{3} \cdot x^{\frac84}\cdot y^{\frac44} \cdot \sqrt[4]{y}[/tex]
[tex]=2^2 \cdot \sqrt[4]{3} \cdot x^2\cdot y \cdot \sqrt[4]{y}[/tex]
[tex]=4 \cdot \sqrt[4]{3} \cdot x^2\cdot y \cdot \sqrt[4]{y}[/tex]
Gather like terms:
[tex]=4 \cdot x^2\cdot y\cdot \sqrt[4]{3} \cdot \sqrt[4]{y}[/tex]
[tex]=4x^2y \sqrt[4]{3y}[/tex]