In a bird sanctuary, 30% of the birds are
hummingbirds. If there are about 350 birds in
the sanctuary at any given time, how many are hummingbirds?
Answer: 105 of them are hummingbirds.
Step-by-step explanation:
I there are a total of 350 birds then 30% o 350 will give the number o hummingbirds.
350 of 30%
350 * 0.3 = 105
THIS ID DUE TODAY! MATH.
Answer: Inverse
Explanation: Any conditions that doesn't fit the requirement of the conditional statement would make the statement false, therefore it is inverse.
Write 5/2 as a mixed number
5/2 can be written as 2 1/2
2*2 = 4 + 1 = 5
Answer:
2 1/2
Step-by-step explanation:
you divide 5 into 2, to get 2 and 1 left over
Find the magnitude of the vector <5, −3>.
1. 5.8
2. 6.1
3. 5.2
4. 4
Answer:
5.8
Step-by-step explanation:
[tex]\sqrt{5^{2} + (-3)^{2} } \\\sqrt{25 + 9} \\\sqrt{34}[/tex]
5.83
hope it helps
Answer:
5.8
Step-by-step explanation:
well, you use the distance formula to find the magnitude of this vector.
Hope this helps!
Point (2, 4) is reflected across the x-axis. What are
the coordinates of its image?
Answer:
The coordinates of its image are (2, -4)
Step-by-step explanation:
Let us revise the rules of reflection across the axes
If the point (x, y) reflected across the x-axis, then its image is (x, -y), the rule of reflection is rx-axis (x, y) → (x, -y) If the point (x, y) reflected across the y-axis, then its image is (-x, y), the rule of reflection is ry-axis (x, y) → (-x, y)∵ The point (2, 4) is reflected across the x-axis
→ By using the first rule above rx-axis (x, y) → (x, -y)
∴ Change the sign of its y-coordinate
∴ Its image is (2, -4)
∴ The coordinates of its image are (2, -4)
80 is M% of 25. What is M? Explain your answer
Solving Linear Equations Unit Test 16 of 20Items Item 16 Gold has a density of 0.70 pounds per cubic inch and copper has a density of 8.96 grams per cubic centimeter. How much will 1 cubic foot of each metal weigh? 1 ft3 = 1728 in3, 1 ft3 = 28,316.8 cm3, and 1 lb=453.5 g. Use the equation rho=mV. (1 point) The gold will weigh 4063.4 pounds and the copper will weigh 12,096 pounds. The gold will weigh 559 pounds and the copper will weigh 1209.6 pounds. The gold will weigh 12,096 pounds and the copper will weigh 4063.4 pounds. The gold will weigh 1209.6 pounds and the copper will weigh 559 pounds.
Answer:
1 ft³ of gold will weigh 1209.6 pounds
1 ft³ of copper will weigh 559 pounds.
Step-by-step explanation:
We know the formula for:
Density = Mass/Volume
Hence, making mass the subject of the formula:
Mass = Density × Volume
From the question we are told:Volume of each metal = 1 ft³
1) Metal: Gold
Density of Gold = 0.70 pounds per cubic inch(lb/in³)
We convert the Volume of gold from ft³ to in³
The Volume of gold given in the question = 1 cubic foot = 1 ft³
1 cubic foot = 1728 cubic inches
Hence, the volume of Gold = 1728 in³
Mass of Gold = Density of Gold × Volume of Gold
Mass of Gold = 0.70Ib/in³ × 1728 in³
= 1209.6 lb(pounds)
2) Metal : Copper
Density of copper given in the question = 8.96 grams per cubic centimeter
Ib = pounds
We convert this density in g/cm³ to ib/in³
453.5g = 1 Ib
8.96g = a Ib
Cross Multiply
= 453.5g × a Ib =8.96g × 1 Ib
= a Ib = 8.96g × 1 Ib/453.5g
a Ib = 0.0197574421 Ib
Density of Copper = 0.0197574421 Ib/cm³
28,316.8 cm³ = 1 ft³
1 cm³ = b ft³
b ft³ = 1 cm³ × 1 ft³/28,316.8cm³
b ft³ = 0.0000353147 ft³
1 cm³ = 0.0000353147 ft³
We have to convert the density of Copper from Ib/cm³ to Ib/ft³
0.0197574421 Ib/cm³ = 0.0197574421 Ib/0.0000353147 ft³
559.46793026 Ib/ft³
Volume of copper = 1ft³
Mass = Density × Volume
Mass of copper = 559.46793026 Ib/ft³ × 1 ft³
= 559.46793026 Ib or pounds
≈ 559 pounds
Therefore , the weight of gold is 1209.6 pounds and the weight of copper will be 559 pounds.
Answer:
Gold
Density of Gold = 0.70 pounds per cubic inch
1 cubic foot = 1728 cubic inches
Hence, the volume of Gold = 1728 in³
Mass of Gold = Density of Gold × Volume of Gold
Mass of Gold = 0.70Ib/in³ × 1728 in³ = 1209.6 lb(pounds)
2) Metal : Copper
Density of copper given in the question = 8.96 grams per cubic centimeter
We convert this density in g/cm³ to ib/in³
453.5g × a Ib =8.96g × 1 Ib = 8.96g × 1 Ib/453.5g = 0.0197574421 Ib
Density of Copper = 0.0197574421 Ib/cm³
Volume of copper = 1ft³
Mass = Density × Volume
Mass of copper = 559.46793026 Ib/ft³ × 1 ft³ = 559.46793026 Ib or pounds
≈ 559 pounds
The weight of gold is 1209.6 pounds and the weight of copper will be 559 pounds.
X + 2x - 9 + xy - 2 - 3x + 2xy - 4
Answer:
3xy-15 thats the simplified form
A recycling bin is shaped like a trapezoid. The bottom 2 angles are 108 degrees. The top left angle is 72 degrees. The front view of a recycle bin is shaped like a trapezoid. What is the measure of the remaining angle? 72° 144° 198° 252°.
The measure of the remaining angle is 72 degree, the correct option is A.
What is the trapezoid?A trapezoid, also known as a trapezium, is a flat closed shape having 4 straight sides, with one pair of parallel sides.
Given
A recycling bin is shaped like a trapezoid.
The bottom 2 angles are 108 degrees.
The top left angle is 72 degrees.
The front view of a recycle bin is shaped like a trapezoid is given by;
[tex]\rm \angle 1+ \rm \angle 2+ \rm \angle 3+ \rm \angle4= 360\\\\108+108+72\rm +\angle 4=360\\\\\rm 288+\angle 4 = 360 \\\\\rm \angle 4=360-288\\\\\rm \angle 4=72[/tex]
Hence, the measure of the remaining angle is 72 degree.
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Answer: A) 72
Step-by-step explanation: I got it right
Select two ratios that are equivalent to 2:9, colon, 9. Choose 2 answers:
Answer:
4:18 and 6:27
Step-by-step explanation:
Answer:
the correct answer is option b and c
which is larger -17/24 or -11/12
Answer:
-17/24
Step-by-step explanation:
Because they are negative numbers, the smaller fraction (when disregarding the negative sign) is always a larger number. -11/12 could be changed to -22/24, and therefore since it is a larger number when disregarding the negative (22/24), it is a smaller number altogether.
-17/24 > -22/24
Lance has 3 time as many pencils as Nick, and they have 84 pencils together. How many pencils does each of them have?
Answer:
21 pencils for Nick and 63 pencils for Lance
Step-by-step explanation:
Lance is said to have 3 times the pencils Nick has.Let's keep the number of pencils Nick has as x.If Nick has x pencils that means Lance has 3x pencils. The total number of pencils present is 84.Now let's make an equation out of the information above:
3x + x = 84
Now solve for x.
3x + x = 84
4x = 84
x = 84/4
x = 21
So Nick has 21 pencils
Now for Lance:
3x
3 * (21) = 63
So Lance has 63 pencils
63 + 21 = 84 pencils
Tina got $500 for their 20th birthday and invested it in an account earning 1.5% interest compounded annually. Write and solve an exponential equation to determine how long it will take Tina's investment to grow to $800
Larry started out the week in a new job. He was paid $10 to attend job orientation.
After that he made $6.25 per hour for each hour he worked. Write the equation in
slope-intercept form that represents the equation.
Answer:
y=6.25x+10
Step-by-step explanation:
6.25 is the rate of change so it is the slope. 10 is what you start with so it is the y- intercept
What are the values of v and w?
Answer: i think 130 and 80
Step-by-step explanation: sorry if wrong
yall i need help its de in 30mins!!
Answer:
I can solve partial
Step-by-step explanation:
Given that,
Diameter of semicircle= 5m
Radius= 2.5m
Now,
Perimeter= πr
=3.14×2.5
= 7.85
Is it Zero or undefined?
Answer:
0
Step-by-step explanation:
When trying to solve this we have only y left over. if we only have the slope for y it is 0. if we only have the slope for x it is undefined.
Pls tell me if it is wrong
If it is I am sorry
mont 10: The diagonals of a square bisect the vertical engles yp 1: Draw a square ABCD. Draw diagonals AC and BD. D B A | 2: of each vertical angle by the diagonals. Write the measurements in the table. Vertical angles Other angles formed by diagonals at Result each vortex ZBAD = ROZBAC ZCAD ZBAC = CAD LABD = ZCBD = ZABD = ZCED ZBCA ZACD ZBCA ZACD ZADB BDC = ZADE - EDC ABC = BCD ADC Conclusion: The diagonals of a square bisect the vertical angles.
Answer:
square the vertical starting from bisect angle !
Does the graph represent y as a function of x?
Answer:
No this is not a function
Step-by-step explanation:
If you use the vertical line test which is just a line used across the graph. If we can draw any vertical line that intersects a graph more than once then it is not a function.
Please answer correctly !!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!
Answer:
bc=12x
ab=17
ac=141
Step-by-step explanation:
What is the equation in slope-intercept form of a line with
а
slope - and y-intercept -2?
3
4
OA) y=_x+2
)
3
4
4.
OB) y=2x +
3
4
OC) y=-x+2
3
v
=x+2
4.
OD) y=-x-2
3
-
Answer:
D
Step-by-step explanation:
sorry about last time 100% sure about this one
Answer: D, because y =mx + b
What is the factored form of 3x+24y?
O 3(x+8y)
0 3xy(x+8y)
O 3(3x+24y)
O 3xy(3x+247)
Plzz helpp
Answer:
3(x + 8y)
Step-by-step explanation:
3 is the highest term that can be factored out; there are no other numbers/variables in common.
Factor out 3 from 3x + 24y.
= 3(x+8y)
The factored form of the given expression is 3(x+8y).
What are factors?A factor is a number that divides into another number without a remainder. So, for example, 5 is a factor of 20 because 20/5 = 4. There is no remainder. You can also think of factors as the numbers that you multiply together in order to obtain a product.
Given is an expression 3x+24y, we need to find the factors of the given expression,
3x+24y
Since, 3 is the highest term that can be factored out; there are no other numbers/variables in common.
Factor out 3 from 3x + 24y.
= 3(x+8y)
Hence, the factored form of the given expression is 3(x+8y).
Learn more about factors, click;
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What are 2 numbers that add to 40 and subtract to 10
Answer:
25 and 15
Step-by-step explanation:
let the 2 numbers be x and y , x > y , then
x + y = 40 → (1)
x - y = 10 → (2)
add the 2 equations term by term to eliminate y
2x + 0 = 50
2x = 50 ( divide both sides by 2 )
x = 25
substitute x = 25 into (1)
25 + y = 40 ( subtract 25 from both sides )
y = 15
the 2 numbers are 25 and 15
2. Find f(2) for
the function
below.
f(x) = 1/8•5^x
Answer:
f(2) = [tex]\frac{25}{8}[/tex]
Step-by-step explanation:
To evaluate f(2) substitute x = 2 into f(x) , that is
f(2) = [tex]\frac{1}{8}[/tex] × 5² = [tex]\frac{1}{8}[/tex] × 25 = [tex]\frac{25}{8}[/tex]
Answer:
24/8
Step-by-step explanation:
BIG BRAIN
PLEASE HELP! I WILL MAKE BRAINLIST!
Answer:
the answer is b because that's the slope
Answer:
B
Step-by-step explanation:
you can try each answer or you can just use number of plants and divide it by number of seed packets which is 10 so B
3 times x plus 4 is greater than or equal to 4 times the sum of x and 1. (Hint: 4 times the sum means you should write a distributive property problem)
Given:
3 times x plus 4 is greater than or equal to 4 times the sum of x and 1.
To find:
The inequality for the given statement and solution of the inequality.
Solution:
4 times the sum means a distributive property problem.
Now,
3 times x : 3x
3 times x plus 4 : 3x+4
Greater than or equal to : ≥
4 times the sum of x and 1 : 4(x+1)
So, the inequality is
[tex]3x+4\geq 4(x+1)[/tex]
Using distributive property, we get
[tex]3x+4\geq 4x+4[/tex]
Isolate variable terms.
[tex]4-4\geq 4x+3x[/tex]
[tex]0\geq x[/tex]
It can be written as
[tex]x\leq 0[/tex]
Therefore, the required inequality is [tex]3x+4\geq 4(x+1)[/tex] and the solution is [tex]x\leq 0[/tex].
What is the scale factor from ABC to XYZ?
6
scale factor:
new image ÷ original image
Here:
24 ÷ 4 = 618 ÷ 3 = 630 ÷ 5 = 6Answer: A: 6
Step-by-step explanation:
What is the approximate length of the diameter, d? Use 3. 14 for. Round to the nearest tenth of a centimeter. 4. 0 centimeters 8. 0 centimeters 15. 9 centimeters 31. 8 centimeters.
The temperature on Monday was 64.8 degrees and the temperature on Tuesday was 7.65 degrees warmer. What was the temperature on tuesday?
Answer:
72.45°
Step-by-step explanation:
Add 7.65° to 64.8°
The temperature is 72.45° on Tuesday.
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Answer:
Step-by-step explanation:
Monday=64.8
Tuesday= 64.8+7.65
=72.45
How to you round 6 3/7 to the nearest hundred s
Answer:
0
Step-by-step explanation:
63/7 = 9
We know,
If any number smaller then fifty told to be rounded to its nearest hundred then the answer is ' 0 '
Similarly the nearest hundred of 9 is 0.
Hope it helps
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