Emelia measures the weight of a rock to be 30 grams. The actual weight of the rock is 24 grams. Determine Emelia's percent error.

Answer:

x ≈ 17.32, y = 20

Step-by-step explanation:

sin (30°) = 10/y

=> y = 10/sin (30°)

=> y = 20

x = [tex]\sqrt{20^{2} - 10^{2}}[/tex]

=> x ≈ 17.32

Answer:

c!!

Step-by-step explanation:

Answer:

1 Cards = 36%

2 Cards = 28%  

3 Cards = 24%

4 Cards = 12.5%

Step-by-step explanation:

Answer:

True

Step-by-step explanation:

Squares are quadrilaterals with 4 congruent sides and 4 right angles, and they also have two sets of parallel sides. Parallelograms are quadrilaterals with two sets of parallel sides. Since squares must be quadrilaterals with two sets of parallel sides, then all squares are parallelograms.

A rectangle has all the properties of a parallelogram, plus the following: The diagonals are congruent.

Squares are quadrilaterals with 4 congruent sides and 4 right angles, and they also have two sets of parallel sides.

Parallelograms are quadrilaterals with two sets of parallel sides. Since squares must be quadrilaterals with two sets of parallel sides, then all squares are parallelograms. This is always true. (actually is true)

Answer:29,858

Step-by-step explanation:

Iñ

[tex]\huge\textsf{Hey there!}[/tex]

[tex]\large\text{2(3x + 4y + x)}[/tex]

[tex]\large\textsf{DISTRIBUTE 2 WITHIN the PARENTHESES}[/tex]

[tex]\large\text{2(3x) + 2(4y) + 2(x)}[/tex]

[tex]\large\text{2(3x) = \boxed{\bf 6x }}[/tex]

[tex]\large\text{6x + 2(4y) + 2(x)}[/tex]

[tex]\large\text{2(4y) = \boxed{\bf 8y}}[/tex]

[tex]\large\text{6x + 8y + 2(x)}[/tex]

[tex]\large\text{2(x) = \boxed{\bf 2x}}[/tex]

[tex]\large\text{6x + 8y + 2x}[/tex]

[tex]\large\textsf{COMBINE the LIKE TERMS}[/tex]

[tex]\large\text{(6x + 2x) + (8y)}[/tex]

[tex]\large\text{6x + 2x = \boxed{\bf 8x}}[/tex]

[tex]\large\text{8x + 8y}[/tex]

[tex]\boxed{\boxed{\large\text{Answer: \huge \bf 8x + 8y}}}\huge\checkmark[/tex]

[tex]\large\text{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

Answer:

9.6cm

Step-by-step explanation:

Answer:

48 cm^2

Step-by-step explanation:

The area of one of the triangular ends is A = (1/2)(4 cm)(3 cm) = 6 cm^2.

Multiply this "base area" by 8 cm, the length of the prism.  We get:

volume of triangular prism = (6 cm^2)(8 cm) = 48 cm^2

Answer:

NP ÷ 240

Step-by-step explanation:

240 ÷ 140 = 2

NP = 2 × 120 = 240

Answer:

NP = 240

Step-by-step explanation:

Solve using ratios applying the properties of  transversals.

Answer:

[tex]equation \ of \ exponential \ function , y = a (b)^x\\(-1, 20) \\=> 20 = a(b)^{-1}\\=>20 = \frac{a}{b} ---(1)\\\\(1, 5)\\=>5 = a(b)^{1}\\=>5=ab ---(2)\\\\from (1) a = 20b\\substitute \ a \ in \ (2)\\\\\\5 = (20b)b\\5= 20b^2\\\frac{1}{4} = b^2\\\\b = \frac{1}{2}\\substitute \ b \ in \ (2)\\5 = ab\\5 = a (\frac{1}{2})\\\\a = 10\\Therefore , the \ equation : y = 10(\frac{1}{2})^{x}[/tex]

Answer:

Hello! answer: 248

Step-by-step explanation:

1488 ÷ 6 = 248 HOPE THAT HELPS!

Answer:

c

Step-by-step explanation:

Answer:

This is telling me that plan B is the better choice

for a certain number of minutes, but after that,

plan A is better.

Let +n+ = number of minutes of calls

with plan B

-----------------------------------------

Set up an equation that makes the 2 plans equal

and then add 1 more minutes to +n+

-----------------------------------------

plan A = plan B

+18.5+=+6.5+%2B+.1%2A%28+n+-+40+%29+

Step-by-step explanation:

Answer:

Plan A is better if you talk at least 121 minutes per month

Step-by-step explanation:

1. Plan B is $6.50 plus 10 cents for each minute

2. Plan A is $18.50

3. For plan A to be better, one need to spend over $12 extra

4. Each minute cost 10 cents, so $12 would be 120 minutes of talk

5. Plan A is better if you talk at least 121 minutes

Answer:

72

Step-by-step explanation:

I checked on RSM

Answer:

6.1

Step-by-step explanation:

tan 27° = x/12

x = 12 · tan 27°

x = 6.1

Answer:

Step-by-step explanation:

=========================================================

Explanation:

Multiply the fractions 9/10 and 2/5 to get

(9/10)*(2/5)

(9*2)/(10*5)

18/50

9/25

---------------------

Here's a visual way to see what's going on. Start by drawing a rectangle of any size or shape. Cut the rectangle vertically into 10 equal slices. Then shade 9 of those slices to represent the fraction 9/10, which is how far (in miles) Lewis walked. See the diagram below. Specifically, refer to figure 1.

The friend walked 2/5 of this shaded amount. Draw 4 horizontal lines to split each vertical bar into 5 equal pieces. So we'll be forming a grid of smaller rectangles. For any given column, you'll shade exactly 2 smaller rectangles out of the 5 total. Hence the 2/5. This is shown in yellow in figure 2. The yellow region is 2 units tall by 9 units across, so we have 2*9 = 18 yellow rectangles in all. This is out of 5*10 = 50 smaller rectangles overall.

That's how we get to the fraction 18/50 which reduces to 9/25 when you divide both parts by the GCF 2.

Answer:

2 rays that meet at an endpoint.

Step-by-step explanation:

A ray is a half-infinite line with one of the two points, meaning that they start at one point and only go in one direction.

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Have a good day :)

Answer:

18

Step-by-step explanation:

[tex]3 \times 2 \times 3[/tex]

That will give you 18 which is the answer

Answer:

608

Step-by-step explanation:

because I think I'm right

Answer:

Step-by-step explanation:

value is decreasing so rate should be <1

f(x)=Pr^x

=1250 (0.8)^x

if x=1

f(1)=1250(0.8)^1=1000 $

if x=2

f(2)=1250(0.8)^2=800 $

if x=3

f(3)=1250(0.8)^3=640  $

so D is the correct answer.

Answer:

B. C which is the answer.

Answer:

Step-by-step explanation:

c=388

Answer:

A

Step-by-step explanation:

This is the same as ((2^3)/(4^2))*((2^3)/(4^2))*((2^3)/(4^2))*((2^3)/(4^2))*((2^3)/(4^2)) which is equal to (2^(3+3+3+3+3)/4^(2+2+2+2+2)), so its (2^15/4^10)

Answer:

You could say 10/15-12/15.

Step-by-step explanation:

Answer:

16 square feet is left uncovered.

Explanation:

Essentially, you’re trying to find the difference between the area of the door and the area of the poster. The area formula for a basic rectangle is l • w (length times width.) We have both of those dimensions for the separate shapes, so you can go ahead & do that math separately (as shown in the attachment!) Then, you subtract the area of the poster from the area of the door, and you have your answer. As always, I hope this is accurate & helpful! Good luck on your test, friend. Best wishes <3

1. 4

2. -4

3. -5

4. 8

Answer:

assuming the shape is a square

1. 90 degrees

2. 45 degrees

3. 45 degrees

4. 90 degrees

Step-by-step explanation:

maths and angles

Answer:

174

Step-by-step explanation:

72+72+10+20+ 174

Answer:

Q.1

The Answer is Option B) 2 × 10-¹²

the answer to question one is b

Answer:

1) yes 2) no 3) no

Step-by-step explanation:

1).v=[tex]\frac{1}{3}[/tex][tex]\pi[/tex][tex]7^{2}[/tex]/4=205.2

2) 25/2= 50

3) v=[tex]\frac{4}{3}[/tex][tex]\pi[/tex]r3=19.26