helpp ill mark u as brain list​

Answer:

3a - 6b - 7a + 13

Step-by-step explanation:

srry if Im wrong

Answer:

13

Step-by-step explanation:

Its asking for the constants and the constants in the equation are 3 and 10

So 3+10= 13

Answer:

5 + 2m = y

Step-by-step explanation:

5 being the y-intercept or initial cost

m being miles

5 + 2m = y (where y is the total amount at the end)

Answer:

a 33.3 percent

Step-by-step explanation:

<hdhdhdhdhhdhdhdhdd

Answer:

Step-by-step explanation:

There are two possible scenarios

1. First marble is blue and second marble is not blue:

2. First marble is not blue and second marble is blue:

The probability that one, but not both, of them, will be blue:

Correct option is D

Answer:

They are equivalent because they both equal .8 no matter what

Step-by-step explanation:

[tex]\rm The\; \bold {answer}\; is\; the \; expresion \;\;\;\dfrac{8}{10} = \dfrac {80}{100}[/tex]

An expression is a combination of numbers, variables, functions (such as addition, subtraction, multiplication or division etc.)

An expression is a sentence with a minimum of two numbers or variables and at least one math operation. This math operation can be addition, subtraction, multiplication, or division.

A math expression is different from a math equation. An equation will always use an equal (=) operator between two math expressions.

Expression is (Number/variable, Math Operator, Number/variable)

Here in the given question The left hand side can be simplified to

0.8 and the right hand side can also be simplified to 0.8.

Therefore

[tex]\rm \dfrac{8}{10}\;\;\;\;\bold{ \underline{=}} \;\;\;\;\dfrac {80}{100}[/tex]

To know more about mathematical expression

https://brainly.com/question/14462529

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Answer:

4. Obtuse

5. Right

6. Acute

Step-by-step explanation:

Pythagorean Theorem.

a^2 + b^2 = c^2

a + b > c = Acute

a + b < c = Obtuse

a + b = c = Right

Answer:

28.6 (90% sure)

Step-by-step explanation:

To solve this work backwards

[tex]D_{3}[/tex]=42

[tex]D_{2}[/tex]=42*.80 = 33.6

[tex]D_{1}[/tex]=33.6-5 = 28.6

Answer:

The answer is below

Step-by-step explanation:

A linear graph has an equation of the form:

y = mx + b,

where y and x are variables, m is the slope (rate of change) of the graph and b is the y intercept (value of y when x is 0).

Given that:

2x -2y = 4 , 3x + 2y = 6

The matrix form of the equation is:

AX = B

[tex]A=\left[\begin{array}{cc}2&-2\\3&2\end{array}\right] ,X=\left[\begin{array}{c}x\\y\end{array}\right] ,B=\left[\begin{array}{c}4\\6\end{array}\right] \\\\Therefore:\\\\\left[\begin{array}{cc}2&-2\\3&2\end{array}\right] \left[\begin{array}{c}x\\y\end{array}\right] =\left[\begin{array}{c}4\\6\end{array}\right] \\\\\left[\begin{array}{c}x\\y\end{array}\right] =\left[\begin{array}{cc}2&-2\\3&2\end{array}\right]^{-1} \left[\begin{array}{c}4\\6\end{array}\right] \\\\[/tex]

[tex]\left[\begin{array}{c}x\\y\end{array}\right] =\left[\begin{array}{cc}0.2&0.2\\-0.3&0.2\end{array}\right] \left[\begin{array}{c}4\\6\end{array}\right] \\\\\left[\begin{array}{c}x\\y\end{array}\right] =\left[\begin{array}{c}2\\0\end{array}\right][/tex]

Answer:

2,2

Step-by-step explanation:

I don't really know how to explain it, but if you plot E and F on a coordinate plane it would make more sense.

*Note that the ratio 1:1 is not the same as the fraction 1/1, rather, 1:1 = 1/2 so point F is like a midpoint of segment EG

The coordinates of point G is (2,2)

The coordinate points are given as:

The ratio is given as:

[tex]m : n = 1 : 1[/tex]

Given that the ratio is 1 : 1, it means that, point F is at the midpoint of line segment EG

So, we have:

[tex]F =0.5 \times (x_1 + x_2, y_1 + y_2)[/tex]

This gives

[tex](1,3) =0.5 \times (0 + x, 4+ y)[/tex]

[tex](1,3) =0.5 \times (x, 4+ y)[/tex]

Multiply both sides by 2

[tex](2,6) =(x, 4+ y)[/tex]

By comparison, we have:

[tex]x = 2[/tex]

[tex]4 + y = 6[/tex]

[tex]y =2[/tex]

Hence, the coordinates of point G is (2,2)

Read more about line partitions at:

https://brainly.com/question/11280112

Answer:

n can be a number less than 3

Step-by-step explanation:

Hope this helps!

Answer:

N<3

Step-by-step explanation:

Answer:

....................

Answer:

wsp?

Step-by-step explanation:

9x^2 + 6x

Answer:

8s

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

10s + -2s

Step 2: Simplify

Answer:

[tex]\huge\boxed{8s}[/tex]

Step-by-step explanation:

Expression can be broken down into a couple of parts.

When we have multiple terms with the same variable, we can perform operations on them assuming they have the same variable - for example, 5x + 6x = 11x, as 5+6=11.

We can apply the same logic here, however, note that adding a negative is the same as subtracting a positive. For example, 5 + -2 is the same as 5-2.

[tex]10 - 2 = 8[/tex]

Therefore, our final expression is [tex]8s[/tex].

Hope this helped!

Step-by-step explanation:

base area×hieght

=24cm²×3cm

=72cm³

Answer:

0.72 m³

Step-by-step explanation:

Volume of a cuboid = area × height of cross section.

Given :

area of base = 24 m² .

height = 3 cm = 0.03 m

Hence the volume = 24 m² × 0.03 m

⇒ 0.72 m³

(I used this from another brainly user)(I did not write this)

'' In math, a geometric series  is a series with a constant ratio between successive terms.

Answer:

a/b = 2

so , a = 2b

b/c = 3/4

so , c = 4b/3

c/a = (4b/3) / 2b

which gives 2/3

Step-by-step explanation:

Step-by-step explanation:

[tex] \frac{b}{c} = \frac{3}{4} \\ 3c = 4b \\ c = \frac{4b}{3} [/tex]

[tex] \frac{a}{c} = 2 \\ a = 2b[/tex]

Answer:

8,64,216,512

Step-by-step explanation:

Answer:

question 4 = 5

the mobile is of equal weight you have 5 of one item which is 5 X 4 = 20. there are 4 circles so 20/4 = 5

question 5 = 16

again mobile is shown to be equal you have 16 altogether on one side therefore the hexagon = 16

question 6 = 3

you are told there is 18 on each side.

you've already been given the leaf worth 6

18/2 = 9

9-6 = 3

star = 3

question 7 diamond = 2, heart = 12

again the mobile is shown to be equal. the mobile is a total 24, you've already been given 12 so the heart is = to 12 the other side both sides need to add up to 6 to make 12 so the diamond = 2

question 8 diamond = 3, heart = 16

44/2 = 22

22/2= 11

both sides need to add up to 22

Answer:

90

Step-by-step explanation:

Answer:

Increase; wider; smaller; narrower.

Step-by-step explanation:

In Statistics, sampling can be defined as a process used to collect or select data (objects, observations, or individuals) from a larger statistical population using specific procedures.

A confidence interval can be defined as a measure of the number of times that a population parameter would be within a given set of data. Thus, it is an estimate of the uncertainty of a given statistical data.

When constructing a confidence interval, to increase the level of confidence, you must increase the margin of error and the confidence interval will be wider. A larger sample size will improve the precision of the confidence interval, therefore, all things being equal, a larger sample size will result in a smaller margin of error and the confidence interval will be narrower.

Hence, for an estimator to be consistent it must have both a small bias and small variance.

9514 1404 393

Answer:

  15

Step-by-step explanation:

||3v|| = ||(-9, 12)|| = √((-9)² +12²) = √225

||3v|| = 15

_____

Additional comment

The (3, 4, 5) Pythagorean triple shows up in numerous algebra, geometry, and trigonometry problems. This is one of them. Once you identify the magnitude of v as the hypotenuse of a triangle with legs 3 and 4, you know immediately that ||v|| = 5 and ||3v|| = 15.

Answer:

x = -3

Step-by-step explanation:

this slope is a straight, vertical line passing through (-3, 5)

The triangle similar to DEF will have an angle that measures 80 degrees, an angle that measures 55 degrees, and an angle that measures 45 degrees.

Two triangles are considered to be similar if their corresponding angles are congruent and sides are in proportion.

The triangle DEF is similar to any other triangle.

Consider the following figure.

So, [tex]100^{o} + x^{o} = 180^{o}[/tex]

[tex]x^{o} = 180^{o} - 100^{o}[/tex]

[tex]x^{o} = 80^{o}[/tex]

Also, [tex]y^{o} +135^{o} = 180^{o}[/tex]

[tex]y^{o} = 180^{o} -135^{o}[/tex]

[tex]y^{o} = 45^{o}[/tex]

The sum of all angles of a triangle is [tex]180^{o}[/tex].

So, angle D + angle E + angle F = [tex]180^{o}[/tex]

That is, [tex]80^{o}+z^{o} + 45^{o}=180^{o}[/tex]

Simplify further

[tex]z^{o} =55^{o}[/tex]

Thus, the triangle similar to DEF will have an angle that measures 80 degrees, an angle that measures 55 degrees, and an angle that measures 45 degrees.

Learn more about the similarity of triangles here-

https://brainly.com/question/25882965

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Answer:

Step-by-step explanation:

1=1

Answer:

13.7

Step-by-step explanation:

Pythagorean theorem converse

Answer:

The value of x is 13.7.

Step-by-step explanation:

☆We are going to use the Pythagorean theorem to solve this.

☆Pythagorean Theorem:

[tex] {a}^{2} + {b}^{2} = {c}^{2} [/tex]

☆Remmeber: a = leg, b = leg, c = hypotenuse or the diagonal.

☆Let's plug in according to the pythagorean theorem and solve!

[tex] {a}^{2} + {b}^{2} = {c}^{2} \\ {x}^{2} + {9.2}^{2} = {16.5}^{2} \\ {x}^{2} + 84.64 = 272.25 \\ \frac{ \: \: \: \: \: \: \: \: - 84.64 = - 84.64}{ {x}^{2} = \sqrt{187.61} } \\ x = 13.7[/tex]

D

Step-by-step explanation:

I just took the test and I got it write

Answer:

Y= x times -2

Step-by-step explanation:

it just is, look at the others online

Answer:

y=-2x

Step-by-step explanation:

Answer:

2

Step-by-step explanation: