Mathematics High School

idk a? or no? like im really bad

Answers

Answer 1

Answer:

Step-by-step explanation:

0.0125

so it is 1.25 because the thousand place onward, it is in the decimal place of the percent

Related Questions

42,300 as a multiple of a power of 10

Answers

I think it is
I4.23 x 10 ^4

It’s 4.23 x 10^4 power

Can the sides of a triangle have lengths 9.4, 16.2, and 3.4?

Answers

Answer:

Step-by-step explanation:

9.4 and 3.4 to 16.2 just doesnt work.

9. List the sides of each triangle in order from shortest to longest.

Answers

Answer:

C, B, A

Step-by-step explanation:

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A rock sample has a mass of 16 grams and a volume of 8 cubic centimeters. 'When the
rock is cut in half, what is the volume and density of each piece?

Answers

Answer:

Volume= 4 cm³

Density= 2 g/cm³

Step-by-step explanation:

We have the following data:

volume= V= 8 cm³

mass= m= 16 g

The density is the mass per volume of a substance, so the density of the rock is:

density= d= 16 g/8 cm³= 2 g/cm³

When we cut the rock in half, we have a half volume and a half mass:

V= 8 cm³/2= 4 cm³

m= 16 g/2= 8 g

But the density is not altered because it is an intrisic property - it does not change with the amount of subtance. Thus, the density of a half rock is:

d = m/V= 8 g/4 cm³= 2 g/cm³

Jeff bought 6 pounds of lunch meat. He puts 1/8 pound of meat on each sub sandwich.How many sandwiches can he make?

Answers

Answer:

Jeff can make 48 sandwiches.

Step-by-step explanation:

[tex]6[/tex] ÷ [tex]\frac{1}{8}[/tex]

KCF

6 ÷ [tex]\frac{8}{1}[/tex] = 48

It took 3.5 hours for a train to travel the distance between two cities at a velocity 120 km/hr. How many miles lie between the two cities?

Answers

(120x3.5) = 420 kilometers
260.976 miles

57:12
The vertices of a quadrilateral in the coordinate plane are known. How can the perimeter of the figure be found?
C D
VX
O Use the distance formula to find the length of each side, and then add the lengths.
O Use the slope formula to find the slope of each of side, and then determine if the opposite sides are parallel
O Use the slope formula to find the slope of each of side, and then determine if the consecutive sides are
perpendicular
O Use the distance formula to find the length of the sides, and then multiply two of the side lengths.
Mark this and retum
Save and Exit
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Answers

Answer: Use the distance formula to find the length of each side, and then add the lengths.

Step-by-step explanation:

To find the perimeter of this quadrilateral with known vertices: Use the distance formula to find the length of each side, and then add the lengths.

What is distance?

The distance between two points is the length of the line joining the two points. Distance is a numerical or occasionally qualitative measurement of how far apart objects or points are. In physics or everyday usage, distance may refer to a physical length or an estimation based on other criteria.

Here, we have,

Mathematically, the distance between points on a coordinate plane is given by this formula:

Formula: distance= √(x_2-x_1)²+(y_2-y_1)²

Where:

x and y are the vertices (points) on a coordinate plane.

Therefore, when the distance formula has been used to determine the length of of each side of the quadrilateral. You should then add the lengths of each side together.

Answers

Answer:

what kind of problem? if it's for brainly, scroll to the bottom of the page and press help and you can fill out an email thing to brainly from there

Step-by-step explanation:

have a great day! I hope this helps! <3

mast3rmind~

brainliest pls, if you want :)

Answer:

Yes!

Step-by-step explanation:

https://brainly.com/app/contact

Fill that out and they would get back to you!

Brainliest appreciated! :D

Have a good day/afternoon/night!

yo, already tried -4 and -1/4. This is probs obvious but i need help. Thanks g

Answers

Step-by-step explanation:

[tex]16 {}^{x} = \frac{1}{64} [/tex]

[tex]4 {}^{2x} = 4 {}^{ - 3} [/tex]

[tex]2x = - 3[/tex]

[tex]x = - \frac{3}{2} [/tex]

Answer:

x = -3/2

Step-by-step explanation:

We make both numbers have the same bases.

We know 2^4 = 16 and 2^-6 = 1/64 because a negative exponent means you get the reciprocal of the number.

2^4x = 2^-6

Let exponents equal each other.

4x = -6

x = 6/4 = -3/2

x = -3/2

$32 per hour; cents per minute

Answers

Answer:

53 cents per minute

Step-by-step explanation:

32 $ per hour

60 minutes per hour

100 cents per dollar

Abby practiced her horn for 3/4 of an hour every day for 12 days?

a) How many hours did she practice in those 12 days?

b) How many minutes did she practiced in those 12 days?

Answers

The time practiced in the 12 days is an illustration of proportions

She practices a total of 9 hours in the 12 daysShe practices a total of 540 minutes in the 12 days

The total number of hours practiced

The given parameters are:

Days = 12

Proportion = 3/4

So, the number of hours is:

Hours = Days * Proportion

This gives

Hours = 12 *3/4

Hours = 9

Hence, she practices a total of 9 hours in the 12 days

The total minutes practiced

There are 60 minutes in an hour.

So, we have:

Minutes = 9 * 60

Minutes = 540

Hence, she practices a total of 540 minutes in the 12 days

Answers

the answer is c and d ! hope it’s right

A bag contains 2 blue, 1 red, and 3 green marbles. You choose one marble. Without putting it back, you choose a second marble. What is the probability that you first choose a green marble and then a blue marble?

Answers

Try 75% ..... I'm not good at math at all though but that's just common sense

A bagel costs $2.15 and cream cheese
costs $0.75. If you buy milk for $2.00, is
$5.00 enough to cover the cost of all
items? Explain.

Answers

Answer:

Yes

Step-by-step explanation:

You do have enough money because 2.15+0.75+2.00 is = to 4.90 and we know that 4.90 is less than 5.00

Yes, because the total cost would be $4.90. If you pay with a 5 dollars bill then you would have $0.10 left over after you have purchased all those items
$2.15 + $0.75 = $2.90
$2.90 + $2.00 = $4.90

19= 7a + 7 -2 what is the and to this need help ASAP

Answers

Answer:

a = 2

Step-by-step explanation:

19= 7a +5

19-5=7a

14÷7=a

a=2

Hallie participates in the freestyle event for the school swim team. The fastest she can swim is 25 meters in 22 seconds. At this rate, in how many minutes could she swim the 200 meter freestyle event?

Answers

Answer:

2 minutes 16 seconds

Step-by-step explanation:

200/25=8

8x22=176

PLEASE HELP, I AM BEING TIMED!!

Assume line M and N are parallel lines cut by transversal L. Find the value of X.

Options: A: X= -0.2
B: X=1.2
C: X=2
D: X=18.2

Answers

Answer: C) X=2

Step-by-step explanation: These angles are equal because they alternate exterior angles. Set them equal to each other, and just solve for x.

What polynomial must be subtracted from 2x^3 − x^2 + 4x − 5 so that the difference is
x^3 + 2x − 9?

Answers

X^3 + x^2 - 2x - 4 is the polynomial that must be subtracted.

(I need help with 2 questions)
1. what is the value of 3x^² + 5x when x=3?
2. 3^3 +3(4+1/3)

Answers

Step-by-step explanation:

1: we plug in 3 instead of x. so we get

3(9)+5(3) = 42

2: we use pemdas or bedmas

27+12+1 = 40

if you have any other question feel free to ask.

Multiply. Express your answer in simplest form. 3 1/3 x 1 3/4

Answers

Answer:

5 5/6

Step-by-step explanation:

10/3 * 7/4

Answer:

5.83

Step-by-step explanation:

Or if you finish the whole problem I got Conversion a mixed number 5.833333

3 1/3 * 1 3/4 = 35/6 = 5 5/6

≅ 5.8333333

Given: m∠ABC = m∠CBD Prove: Ray B C bisects ∠ABD. 3 lines extend from point B. One line extends to point A, another to C, and another to D. Justify each step in the flowchart proof. A flow chart with 3 boxes that are labeled A, B, C, from top to bottom. Box A contains m angle A B C = m angle C B D. Box B contains angle A B C is-congruent-to angle C B D. Box C contains Ray B C bisects angle A B D.

Answers

Answer:

Given that m∠ABC = m∠CBD, and m∠ABD = m∠ABC + m∠CBD BC bisects m∠ABD (Definition of angle bisector)

Step-by-step explanation:

The given information are;

m∠ABC = m∠CBD

To prove that Ray BC bisects m∠ABD

The description is therefore;

Three lines (AB, BC, and BD) that meet at a point

The content of Box A = m∠ABC = m∠CBD

The content of Box B = m∠ABC ≅ m∠CBD

The content of Box C = Ray BC bisects m∠ABD

Therefore, we have;

m∠ABD = m∠ABC + m∠CBD (Angle addition postulate)

m∠ABC = m∠CBD (Given)

∴ m∠ABC ≅ m∠CBD (Definition of congruent angles)

m∠ABC is adjacent to m∠CBD (Description of the angles)

Line BC is common to m∠ABC and m∠CBD (Description of the angles)

Therefore, given that m∠ABC = m∠CBD, and m∠ABD = m∠ABC + m∠CBD BC bisects m∠ABD (Definition of angle bisector).

Answer:

Step-by-step explanation:

edg

This is timed!!! It is a math equation that I am too lazy to solve.

Answers

Answer: Below

Step-by-step explanation:

Using the information, we can see that they all refer to Elena as a marker for how much they walked, directly or indirectly.

Let's use E for Elena, J for Jada, and L for Lin.

E + 4 = J

E + 6 = L

E = E

We know they all walked a total of 37 miles.

J + L + E = 37

(E + 4) + (E + 6) + E = 37

Simplify.

3E + 10 = 37

3E = 27

E = 9

Using E is 9, we find that:

Elena walked 9 miles

Lin walked 15 miles

Jana walked 13 miles

13 + 15 + 9 = 37, so our answer checks out.

Solution:

We know that:

[tex]Jada + Elena + Lin = 37 \space\ miles[/tex][tex]Jada = 4 + Elena[/tex][tex]Lin = 2 + Jada[/tex]Finding the distance each walked:[tex]Jada + Elena + Lin = 37 \space\ miles[/tex]

Add 4 both sides

=> [tex]Jada + Elena + 4 + Lin = 37 + 4[/tex]=> [tex]Jada + Jada + Lin = 41 \space\ miles[/tex] [tex][Jada = 4 + Elena][/tex]=> [tex]Jada + Jada + Jada + 2 = 41 \space\ miles[/tex] [tex][Lin = Jada + 2][/tex]

Changing "Jada + Jada + Jada" to "3(Jada)"

=> [tex]3(Jada) + 2 = 41 \space\ miles[/tex]

Subtracting 2 both sides:

=> [tex]3(Jada) = 41 - 2[/tex]=> [tex]3(Jada) = 39 \space\ miles[/tex]

Divide 3 both sides:

=> [tex]3(Jada) = 39 \space\ miles[/tex]=> [tex]\frac{3(Jada)}{3} = \frac{39 \space\ miles}{3}[/tex]=> [tex]\bold{Jada} = \bold{13 \space\ miles}[/tex]

Substituting the miles Jada walked into the equation "Jada = 4 + Elena"

[tex]Jada = 4 + Elena[/tex]=> [tex]13 = 4 + Elena[/tex]

Subtract 4 both sides:

=> [tex]13 - 4 = 4 - 4 + Elena[/tex]=> [tex]\bold{Elena} = \bold{9 \space\ miles}[/tex]

Substituting the miles Jada walked into the equation "Lin = 2 + Jada"

=> [tex]Lin = 2 + 13[/tex]=> [tex]\bold{Lin} = \bold{15 \space\ miles}[/tex]

Are there any outliers in the data? What does the outlier mean?

Answers

Answer:

44, definition below

Step-by-step explanation:

An outlier is a number that is much larger or smaller than the general populous of numbers. For example, if there was a dot plot with dots clustered at 2, 3, and 5, but there was one or two dots around 10, then 10 would be considered an outlier.I would consider 44 to be an outlier in the number set.

If I am incorrect in my reasoning, please let me know so that I can plan better for my future answers. Have an amazing day.

Answer: I think it's 44

Step-by-step explanation: Outlier means the one that stands out from the rest. As you can see most of the numbers are in between 50 and 90 but 44 is not so it is 44.

Hope it helped :D

pls answer thank you :D

Answers

Answer:

1)90--63=27

2)180--50=130

3)43

4)90--29=61

5)90

Step-by-step explanation:

please mark me as brainlest

Answer:

Step-by-step explanation:

[tex]1)Solution\\\\b+63=90[Complementary\: angles]\\\\b=90-63\\\\b=27[/tex]

[tex]2)Solution\\\\b+29=90[Complementary\: angles]\\\\b=90-29\\\\b=61[/tex]

[tex]3)Solution\\\\b+60=180[Linear\: pair]\\\\b=180-60\\\\b=120[/tex]

[tex]4)Solution\\\\b=90[Vertically\:opposite\: angles]\\\\b=90[/tex]

[tex]5)Solution\\\\b=43[Vertically\:opposite\: angles]\\\\b=43[/tex]

What us the greatest common factor of 56 and 49

Answers

Answer:

Step-by-step explanation:

56÷7=8

49÷7=7

Answer: 7

Step-by-step explanation:

First, list the factors of 56 and 49:

56 : 1, 2, 4, 7, 8, 14, 28 and 56

49 : 1, 7 and 49

Find the greatest number that is in BOTH lists and there you go :)

A company figured it needed 68. 5 square feet of carpet for its reception room. To allow for waste, it was decided to order 40 percent more material than needed. Fractional parts of square feet cannot be ordered. At $8. 00 per square foot, how much would the carpet cost?

Answers

The total cost of the carpet purchased by the company for its reception is $767.20.

What is the total cost of the carpet?

The first step is to determine the total square feet of carpet that would be bought: 1.40 x 68.5 = 95.9 square feet

Now, determine the total cost of the carpet. This can be known by multiplyig the cost per square foot by the total amount of carpet needed.

95.9 x 8 = $767.20

To learn more about how to determine total cost, please check: https://brainly.com/question/25717996

find the value of x that makes f(x) continuous

Answers

Answer:

the answer for this question is -4

What are the examples of union of events?

Answers

Step-by-step explanation:

That is, the event A ∪ B will occur if either A or B occurs. In Example 4.1(a), if A = {g} is the event that the child is a girl and B = {b} is the event that it is a boy, then A ∪ B = {g, b}.

Associative law: (E ∪ F)∪G = E ∪ (F ∪ G)

Distributive law: (E∪F)G=EG∪FG

Commutative law: E ∪ F = F ∪ E

pls help will mark brainliest
A= 1/2h(a+b) solve for a (lowercase a only)

Answers

Answer:

a = 2A / h - b

Hope that was the answer you were looking for :D

Find the values of theta. Explain how you found your answer or upload a picture showing your work.

Answers

Answer:

Step-by-step explanation:

[tex]\frac{\pi }{3}[/tex] and [tex]\frac{2\pi }{3}[/tex]

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