Answers
30÷10+2
3+2
5=5
Hope this helps
Related Questions
Which mathematical property is demonstrated? 40 • (25 • 74) = (40 • 25) • 74
A. commutative property of addition
B. associative property of multiplication
C. associative property of addition
D. commutative property of multiplication
Answers
Now you have to understand that you are just changing the order of the numbers.
The correct answer would be......
D
Answer:
d
Step-by-step explanation:
hope it helps
The equation d=60t gives the distance d (in miles) a car travels after t hours. Identify the independent and dependent variables.
Answers
dependent variable: distance (h)
The required d is the dependent variable and t is the independent variable.
What is equation?In mathematics, an equation is a statement that asserts the equality of two expressions. It typically contains one or more variables, which represent unknown values.
In the equation, d=60t, t is the independent variable and d is the dependent variable. The value of d depends on the value of t, which is the amount of time the car travels, and hence is the independent variable.
Thus, d is the dependent variable and t is the independent variable.
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4/7x = 64
Answer for x
Answers
x = 112
This is because
4/7x = 647/4 x 4/7 = 64/1 x 7/4
1x= 448/4
x = 112To solve this, divide 64 and 4/7 . . .
64 = 64/1
4/7 = 4/7
64 x 7 = 448
1 x 4 = 4
Simplifying 448/4 . . .
448/4 = 112 <--------
112= x
x = 112
Hope this helps you.
Have a great day!
Joelle plans to sell two types of balloons at her charity event: 171717‑inch latex balloons that require 222 cubic feet (\text{ft}^3)(ft 3 )left parenthesis, f, t, start superscript, 3, end superscript, right parenthesis of helium and 181818‑inch mylar balloons that require only 0.5 \,\text{ft}^30.5ft 3 0, point, 5, space, f, t, start superscript, 3, end superscript. She only has access to 1{,}000 \,\text{ft}^31,000ft 3 1, comma, 000, space, f, t, start superscript, 3, end superscript of helium, 15\%15%15, percent of which will be unused due to pressure loss in the tanks. She wants to have at least 500500500 balloons for sale in total. For the number of latex balloons, LLL, and number of mylar balloons, MMM, which of the following systems of inequalities best represents this situation? Choose 1 answer:
Answers
L+M >= 500 (greater than or equal to)
2L + 0.5M <= 850 (less than or equal to)
The first inequality deals with the total number of balloons. She wants the total to be at least 500, so add the variables and set it greater than or equal to 500.
The second inequality deals with the helium. 2L comes from each latex balloon using 2 ft^3 of helium. 0.5M comes from each Mylar balloon using 0.5 ft^3. Together they can use no more than 85% of the 1000 ft^3 tank; 85% = 0.85; 0.85×1000=850. "No more than" tells us it must be less than or equal to.
18 out of 24 of Emils CDs are country music 5 out of 8 of Imanis CDs are country music. Which is a true statement A Half of each CD coleection consists of country music B less than half od ech CD collection consists of country music E Emil has a greater fraction of country music than Imani
D imani has greater fractionof country music than Emil which one is true A B C or D
Answers
The third choice is the correct one : Emily has a greater fraction of country music than Imani.
Explanation:
For Emily:
18 out of 24 of the CDs are country music.
This means that the ratio is 3/4 which greater then 1/2
For Imani:
5 out of 8 of the CDs are country music
This means that the ratio is 5/8 which is also greater than 1/2
Now, let's check the choices:
First choice:
Half of each CD collection consists of country music.
This choice is wrong as we have noted that the ratio for both is greater than 1/2
Second choice:
less than half of each CD collection consists of country music.
This choice is wrong as we have noted that the ratio for both is greater than 1/2
Third choice:
Emily has a greater fraction of country music than Imani.
Emily - Imani = 3/4 - 5/8 = 1/8
This means that Emily has more country music than Imani
Therefore, this choice is correct
Fourth choice:
Imani has greater fraction of country music than Emil.
This choice is wrong as we have noted in the third option that Emily has a larger fraction.
Based on the above:
The third choice is the correct one.
Hope this helps :)
the diagram shows the shape of the green of a miniature golf hole. what is the area of the green?
Answers
The area of green of golf course can be found by summing the area of pieces like that given rectangles and triangles.
The resultant area of the green of the golf course is given by:
100 sq. feet
Composing the area:You have to calculate the area of those smaller pieces to find the total area of the green of the golf course.
Total area = sum of area of trapezoid and parallelogram.The trapezoid in left of figure has height of 4 feet and parallel sides of 8 feet and 12 feet respectively.
Thus:
Area of trapezoid = [tex]\dfrac{1}{2}.\text{sum of parallel sides} \times height[/tex]
Area of trapezoid = [tex]\dfrac{1}{2}.4.(12+8) = 40 \: \rm feet^2[/tex]
The parallelogram on left has height 4 feet and base is of 15 feet.
Thus:
Area of parallelogram = [tex]\text{base} \times \text{height}[/tex] = [tex]4 \times 15 = 60 \: \rm feet^2[/tex]
Thus,
Total area = 40 + 60 = 100 sq. feet.
The resultant area of the green of the golf course is given by:
100 sq. feet
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Two sides of a right triangle measure 7 units and 3 units. What is the area of the square that shares a side with the third side of the triangle?
Answers
We can use the Pythagorean theorem to find the length of the third sides.
c²=a²+b²
Where c is the longest (unkwon ) side, a and b are the remaining sides. So,
c²=7²+3²
= 49+9
= 58
So, c=√58
So, the length of the third side or the side length of square is √58.
So, the area of the shaded region (square)= c²
=(√58)²
=58
So, the area of the square is 58 units².
Answer: 58 units squared
Step-by-step explanation:
How many triangles can be constructed with angles measuring 120°, 40°, and 10°?
A. One
B. None
C. More than one
Answers
The sum of the interior angles in a triangle always add up to 180°. In the question the angles add up to 170°, and therefore it is impossible to form a triangle with this interior angles.
IF Mary had 500.004 in the bank and earns an annual interest rate of 2%, how much will she earn in one year?
Answers
Mary's account would be credited with $10.00 interest for the year.
Mike’s current restaurant measures 60 feet by 30 feet. Due to increase in the number of customers, he wants to rent a bigger restaurant. The dimensions of the bigger restaurant will be related by a scale factor of 2. What is the difference in area between Mike's new restaurant and his current restaurant, in square feet?
Answers
Next, we find the areas of the current restaurant and the new restaurant by multiplying the length times the width for each. Thus, the current restaurant is 1800 square feet (60 feet times 30 feet) and the new restaurant is 7200 square feet (120 feet times 60 feet). We find the difference by subtracting 7200 square feet minus 1800 square feet to get the answer of 5400 square feet.
Expand. Your answer should be a polynomial in standard form. 3h(−h 2 +2h−1)
Answers
Please note that ^ indicates exponents
Answer: -18h^2+85h-18
Step-by-step explanation:
if the measure of AB is 8 find the length of the radius of C
Answers
8/2 = 4
the radius is 4
HELP ME!
The Pythagorean Theorem and Distance Formula are both used to find distances on the coordinate plane. Explain when it is appropriate to use each method.
Answers
If a scientist knows the relative age of a fossil, he can also know A. the type of climate from which it came. B. the relative age of the rock where it was found. C. how it became extinct. D. how long the organism was alive.
its science but it made me pick math
Answers
Answer:
the relative age of the rock where it was found.
Explanation:
Study Island
In the diagram, the radius of the outer circle is 2x cm and the radius of the inside circle is 6 cm. The area of the shaded region is 288π cm².
What is the value of x?
Answers
288pi = pi * (2x)^2 - pi * 6^2
288 = 4x^2 - 36
4x^2 = 324
x^2 = 81
x = 9 cms Answer
Find the product of (3x + 7y)2. 9x2 − 42xy + 49y2 9x2 − 49y2 9x2 + 49y2 9x2 + 42xy + 49y2
Answers
so
(3x + 7y)^2
= 9x^2 + 42xy + 49y^2
answer
9x^2 + 42xy + 49y^2
Answer:
[tex]9x^{2}+42xy+49y^{2}[/tex]
Step-by-step explanation:
we know that
[tex](a+b)^{2}=a^{2}+2ab+b^{2}[/tex]
In this problem we have
[tex](3x+7y)^{2}[/tex]
so
[tex]a=3x[/tex]
[tex]b=7y[/tex]
substitute
[tex](3x+7y)^{2}=(3x)^{2}+2(3x)(7y)+(7y)^{2}[/tex]
[tex]=9x^{2}+42xy+49y^{2}[/tex]
Which expressions are equivalent to 3(x + 3y + 2x − y )?
3(3x + 2y) and 9x + 6y
3(3x + 4y) and 9x + 12y
3(x + 4y) and 3x + 12y
3(x + 2y) and 3x + 6y
HELP ASAP
Answers
Hello,
The correct answer is A) 3(3x + 2y) and 9x + 6y
Hope this helps!!!! (:
HELP QUICK PLEASE!!!!
explain in a short paragraph how the figure below shows this is a right angle, by the converse of the phythagorean theorem
Answers
As you see the biggest square is 5x5 = 25 squares unit
Two others
3x3= 9
4x4 = 16
9+16 = 25
Order the sides or angles of the triangle from least to greatest
Answers
Tell me if that helps
the initial vertical velocity of a rocket shot straight up is 42 meters per second. How long does it take for the rocket to return to earth? round your answer to the nearest tenth of a second. show all your work.
Answers
The equation is:
[tex]0=-9.8t^2+v_0t+h_0[/tex]
where -9.8m/sec² is the acceleration due to gravity, v₀ is the initial velocity, and h₀ is the initial height. We will go from the assumption that the rocket is launched from the ground, so h₀=0, and we are told that the initial velocity, v₀, is 42. This gives us:
[tex]0=-9.8t^2+42t[/tex]
We will use the quadratic formula to solve this. The quadratic formula is:
[tex]x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]
Plugging in our information we have:
[tex]t=\frac{-42\pm \sqrt{42^2-4(-9.8)(0)}}{2(-9.8)} \\ \\=\frac{-42\pm \sqrt{1764-0}}{-19.6} \\ \\=\frac{-42\pm \sqrt{1764}}{-19.6} \\ \\=\frac{-42\pm 42}{-19.6}=\frac{-42-42}{-19.6} \text{ or } \frac{-42+42}{-19.6} \\ \\=\frac{-84}{-19.6}\text{ or }\frac{0}{-19.6} \\ \\=4.3\text{ or }0[/tex]
x=0 is when the rocket is launched; x=4.3 is when the rocket lands.
The rocket takes approximately 8.6 seconds to return to earth.
Explanation:To calculate the time it takes for the rocket to return to earth, we need to consider the projectile motion in the vertical direction. The initial vertical velocity of the rocket is 42 m/s. We can use the equation for vertical displacement to find the time:
Δy = v0yt + (1/2)gt²
Since the rocket returns to the same altitude, the displacement is 0. Therefore, we have:
0 = (42)t + (1/2)(-9.8)t²
Simplifying this equation and solving for t, we find that it takes approximately 8.6 seconds for the rocket to return to earth.
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Jane biked 34 miles in 2 hours. At this rate, how far could she bike in 5 hours?
13.6 mi
37 mi
76 mi
85 mi
Answers
What’s the first 200 digits of pie?????????
Answers
1415926535
8979323846
2643383279
5028841971
6939937510
5820974944
5923078164
0628620899
8628034825
3421170679
8214808651
3282306647
0938446095
5058223172
5359408128
4811174502
8410270193
8521105559
6446229489
5493038196
If two prisms have the same volume, do they always, sometimes, or never have the same surface area
Answers
Answer:
sometimes
Step-by-step explanation:
Two prisms with the same volume sometimes have the same surface area, but not always, because surface area depends on the dimensions of all prism faces. Different shapes with the same volume, such as a sphere, a cube, and a cylinder, can have significantly different surface areas, especially if their proportions change.
Explanation:If two prisms have the same volume, they do sometimes have the same surface area, but not always. The volume of a prism is determined by the area of the base multiplied by the height, but the surface area includes the areas of all the faces of the prism.
Therefore, two prisms can have the same volume, but if their dimensions—base areas and heights—are different, their surface areas can be very different as well. This holds true for other geometric shapes as well.
Example with Different ShapesFor instance, consider a sphere, a cube, and a cylinder that all have the same volume. According to the formula for a sphere, sphere: volume = 4/3 (pi) (r)³; surface area = 4 (pi) (r)², for a cube, cube: volume = (s)³; surface area = 6 (s)², and for a cylinder, cylinder: volume = height (pi) (r)²; surface area = 2 (pi) (r) (height) + 2 (pi) (r)². Even if all these shapes have a volume set at 1 unit cubed, their surface areas can vary significantly.
Furthermore, changing the shape's proportions while keeping the volume constant (such as elongating a cylinder or a cube) generally increases the surface area.
This is showcased in data where cylinders and cubes shapes elongated in length or width have different surface areas but maintain the same volume.
^^I have no idea what this is, means or is asking so help please, thanks!
Answers
If you rewrite this, it is now [tex] 9^{9} [/tex].
Hope this helps!
Barry’s mountain bike weighs 6 pounds more than andy’s. Their bike weigh 42 pound together . Write an equation that represent the sum of weigh altogether.
Answers
Let b equal the weight of Barry's mountain bike. Let a equal the weight of Andy's mountain bike.
b - 6 + b = 42
Since Barry's mountain bike weighs 6 pounds more than Andy's, we can say that Andy's mountain bike weighs b - 6 pounds. Since both mountain bikes added together is 42 pounds, b - 6 + b would be equal to 42.
Hope this helps!
A Glass paperweight has the shape of a triangular prism. The bases are equilateral triangles with side lengths of 4 inches and a height of 3.5 inches. The height of the prism is 5 inches. find the lateral area and the total surface area of the paperwork.
Answers
The lateral area of the triangular prism is 21 square inches and the total surface area is 35 square inches.
Explanation:
To find the lateral area of the triangular prism, we need to calculate the area of all three sides excluding the bases. Since the bases are equilateral triangles with side lengths of 4 inches, the area of each base is ½ × base length × height = ½ × 4 × 3.5 = 7 square inches. The lateral area is the sum of the areas of the three sides, which is 3 × 7 = 21 square inches.
The total surface area of the prism includes the bases as well. So we need to calculate the area of the two triangular bases and add it to the lateral area. The total surface area is 2 (area of base) + lateral area = 2 × 7 + 21 = 35 square inches.
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The lateral area of the triangular prism is 60 square inches, and the total surface area is 74 square inches.
To find the lateral area and total surface area of a triangular prism:
Step 1: Calculate the Area of One Triangular Base
The base is an equilateral triangle with sides of 4 inches and a height of 3.5 inches. The area of an equilateral triangle is calculated using the formula:[tex]Area = \frac{1}{2}*base*height[/tex]
So the area is:[tex]Area = \frac{1}{2} *4\ in*3.5\ in = 7\ square\ inches[/tex]
Step 2: Calculate the Perimeter of the Base
The perimeter of the base is:Perimeter = 3 * side length = 3 * 4 in = 12 inches
Step 3: Calculate the Lateral Area
The lateral area of a prism is given by:Lateral Area = Perimeter * height of the prism
Therefore, the lateral area is:Lateral Area = 12 in * 5 in = 60 square inches
Step 4: Calculate the Total Surface Area
The total surface area is the sum of the lateral area and the areas of the two triangular bases:Total Surface Area = Lateral Area + 2 * Area of one baseTotal Surface Area = 60 square inches + 2 * 7 square inches = 74 square inchesThus, the lateral area and total surface area are 60 square inches and 74 square inches.
Shaquira is baking cookies to put in packages for a fundraiser. Shaquira has made
86 chocolate chip cookies and
42 sugar cookies.
Shaquira wants to create identical packages of cookies to sell, and she must use all of the cookies.
What is the greatest number of identical packages that Shaquira can make?
Answers
Answer:
2
Step-by-step explanation:
To be able to find the greatest number of identical packages that Shaquira will be able to make, we first need to find the prime factors of the Chocolate Chip Cookies and Sugar Cookies.
86 Chocolate Chip Cookies
42 Sugar Cookies
Let's take the 86 Chocolate Chip Cookies first.
[tex]86 \left \{ {{2} \atop {43}} \right.[/tex] or 86 = 2 x 43
Now let's take the Sugar Cookies.
[tex]42 \left \{ {{2} \atop {21\left \{ {{3} \atop {7}} \right. }} \right.[/tex] or
42 = 2 x 3 x 7
Now that we have the prime factors, we then look for the Greatest Common Factor between the sets of prime factors.
2 x 3 x 7 = 42
2 x 43 = 86
2 = Total number of identical packages.
Answer:
2
Step-by-step explanation:
Solve the equation 2^(3−2) +4=16.
Please show all work.
Answers
2^(1)+4=16
2+4=16
6=16
6 \= 16
(unequal)
The general term for the sequence 2, 4, 8, 16, 32, . . . is
Answers
We are given
sequence is 2 , 4 , 8 ,16 , 32 , .....
Firstly , we will check whether it is geometric sequence
Checking geometric sequence:
We will find common ratio between successive terms
and then we check whether they are equal
r1=(second term)/(first term)
[tex] r_1=\frac{4}{2}=2 [/tex]
r2=(third term)/(second term)
[tex] r_2=\frac{8}{4}=2 [/tex]
r3=(fourth term)/(third term)
[tex] r_3=\frac{16}{8}=2 [/tex]
r4=(fifth term)/(fourth term)
[tex] r_4=\frac{32}{16}=2 [/tex]
we can see that all four ratios are same
[tex] r_1=r_2=r_3=r_4=2 [/tex]
so, this is geometric sequence
Calculation of general term:
We got
common ratio is
[tex] r=2 [/tex]
Let's assume
number of terms is n
first term is 2
[tex] a_1=2 [/tex]
now, we can use formula
[tex] a_n=a_1 (r)^{n-1} [/tex]
we can plug values
and we get
[tex] a_n=2(2)^{n-1} [/tex]
[tex] a_n=2^1(2)^{n-1} [/tex]
[tex] a_n=(2)^{n-1+1} [/tex]
[tex] a_n=(2)^{n} [/tex]..................Answer
Answer:
a1: 2 r1: 2
Step-by-step explanation
just did it on edge :)
the answer for the second part is the 1st and 4th formulas
Suppose all left-handed people are excluded from a sample. What is this an example of?
A. Selection bias
B. Response bias
C. Nonresponse bias
D. Nonselection bias
Answers
Answer: A . selection bias
Step-by-step explanation: