Sara’s English test had 90 questions and she got 18 questions wrong. What percent of the questions did she get correct?

Answer:

BC = 205.8 feet

Step-by-step explanation:

We only have one side, DB, so we have to use the given angles rather than the Pythagorean theorem.

Answer:

BC ≈ 205.8 ft

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos71° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{BD}{BC}[/tex] = [tex]\frac{67}{BC}[/tex] ( multiply both sides by BC )

BC × cos71° = 67 ( divide both sides by cos71° )

BC = [tex]\frac{67}{cos71}[/tex] ≈ 205.8 ft ( to the nearest tenth )

Answer: 78°

Similar triangles are different from congruent triangles. Congruent triangles have equal angles and sides, while similar triangles have equal angles and proportional side lengths. In this case, because the triangles are similar, the angles should be equal. The sum of the angles of triangles are always 180°. Because triangle ABC has angle measures of 28° and 74°, the equation should appear as 28+74+x=180. Add the like terms to get 102. Subtract 102 on both sides to get x=78. Although we only solved for Triangle ABC, again, similar triangles have the same corresponding angle measures, so it applies to Triangle DEF, as well.

Answer: w=14 cm

Step-by-step explanation: w=A

l=266

19=14cm

Answer:

Area = length x width

so you do 266/19 = 14

hope that answers your question

Don't hesitate to comment if you don't understand something.

Step-by-step explanation:

The resulting polynomial in standard form (b)  –4g^4 –3g³ +4g² +5g +3

Suppose the considered polynomial is of only one variable.

Then, the standard form of that polynomial is the one in which all the terms with higher exponents are written on left side to those which have lower exponents.

The simplification process is described and partially carried out. We are to finish by combining like terms and writing the result in standard form.

Given

Add: (g² – 4g^4 + 5g + 9) + (–3g³ + 3g² – 6)

Combine Like Terms

g²  + (–4g^4) + 5g + 9 + (–3g³) + 3g²  + (–6)

The like terms are the g² terms and the constants;

= (1 +3)g² + (–4g^4) +5g +(9 +(–6)) +(–3g³)

 = 4g² +(–4g^4) +5g +3 +(–3g³)

Write in Standard Form

In this form, the terms are written in order of decreasing degree.

= –4g^4 –3g³ +4g² +5g +3

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According to the pattern Brett receives points as follows 5,10,15,20,25,30,35 and according to the pattern of Yolanda, Yolanda receives points as 25,60,95,130,165,200,235 .

What is recursion  ?

It is a process in which it calls itself to solve the given problem is called as recursion.

The recursive formula to find the nth term of a geometric sequence is:

an = an-1 * r for n ≥ 2

In Brett's case,

if n=2

a2 = a1 * r  

given a2 = 10 a1 =5

10 = 5 *d

d=2

a4 = a3 * d = 20*2 = 40

a5 = a4*d = 40*2 = 80

a6 = a5*d = 80*2 = 160

a7 = a6 * d = 160*2 = 320

In Yolanda case,

The recursive formula to find the nth term of an arithmetic sequence is:

an = an-1 + d for n ≥ 2

if n=2

a2 = a1 + d

60 = 25 + d

d = 35

a4 = a3+d = 95 + 35 = 130

a5 = a4+d = 130 + 35 = 165

a6 = a5+d = 165 + 35 = 200

a7 = a6 +d = 200 + 35 = 235

Hence the pattern in Brett's case could be 5,10,15,20,25,30,35 and in Yolando's case could be 25,60,95,130,165,200,235 .

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According to the pattern Brett receives points as follows 5,10,15,20,25,30,35 and according to the pattern of Yolanda, Yolanda receives points as 25,60,95,130,165,200,235 .

It is a process in which it calls itself to solve the given problem is called as recursion.

The recursive formula to find the nth term of a geometric sequence is:

an = an-1 * r for n ≥ 2

In Brett's case,

if n=2

a2 = a1 * r  

given a2 = 10 a1 =5

10 = 5 *d

d=2

a4 = a3 * d = 20*2 = 40

a5 = a4*d = 40*2 = 80

a6 = a5*d = 80*2 = 160

a7 = a6 * d = 160*2 = 320

In Yolanda case,

The recursive formula to find the nth term of an arithmetic sequence is:

an = an-1 + d for n ≥ 2

if n=2

a2 = a1 + d

60 = 25 + d

d = 35

a4 = a3+d = 95 + 35 = 130

a5 = a4+d = 130 + 35 = 165

a6 = a5+d = 165 + 35 = 200

a7 = a6 +d = 200 + 35 = 235

Hence the pattern in Brett's case could be 5,10,15,20,25,30,35 and in Yolando's case could be 25,60,95,130,165,200,235 .

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Answer: 8 3/4 because first find your common denominator, then solve the math and you will get 8 3/4

UPDATED:

Plato users: answer is now A:

"The 3rd nap is the least consistent in duration because its

standard deviation is the highest."

they just shuffled the answers, the answer choice itself is still the same, just a dif letter choice

< 26 / Jan / 2022 >

The correct answer is the last one, that the 3rd nap is the least consistent in duration because its standard deviation is the highest.

Standard deviation is a measure of variation from the mean; it tells how different values are from the mean.  

We have given that,

A mother tracks the duration of her baby's three daily naps for a few weeks. The mean time, in minutes, and the standard deviation, SD, for each nap are recorded in the table below.

Now, For that nap to have a higher standard deviation means that its values were on average more different from the mean than the others.

Thus, The correct answer is the last one, that the 3rd nap is the least consistent in duration because its standard deviation is the highest.

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The linear function that model this problem is y = 10x + 15 and in standard form is 10x - y = -15

A linear equation is an algebraic equation in which each term is either a constant or a product of a constant and a single variable. It is of the form ax + b = 0, where a and b are constants and x is a variable.Sometimes, a linear function can also be said to be a linear equation which is an equation that can be written in the form Ax + By = C, where A, B, and C are constants and x and y are variables. Linear equations are used to describe relationships between two variables, and they can be used to solve a wide range of problems.

In this problem, we can write an equation in slope-intercept form.

This can be modelled in y = mx + c

To model the problem,

y = 10x + 15

a) To rewrite the problem in another form of linear equation, we can write this in the standard form.

Ax + By = C

10x - y = -15

b) The graph of the problem is attached below

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Answer:

y=-3

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-3-(-3))/(3-(-4))

m=(-3+3)/(3+4)

m=0/7

m=0

y-y1=m(x-x1)

y-(-3)=0(x-(-4))

y+3=0(x+4)

y+3=0

y=0-3

y=-3

Approximately 300 plants are made pharmaceuticals currently under different stages of discovery.

Why do you use the term pharmaceutical?

pharmaceutical, material used for repairing, changing, or treating organic processes as well as for illness diagnosis, treatment, or prevention. Pharma (Bachelor of Pharmacy): Course, Qualifications, Admission, Syllabus, Pay, and Scope.

What function do drugs serve?

Drugs are created, produced, and distributed by the pharmaceutical business. Its goal is not to define sickness. Drug manufacturers typically focus on ailments that have already been identified by the medical community.

                          The positive side effects of medications, such as those that lower blood pressure, treat infections, or reduce pain, are considered their advantages. The possibility that anything unfavorable or unexpected will occur to you as a result of using a medication is what we mean by "risks."

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Answer:

1) Yes

2) No

3) Yes

4) No

5) No

6) Yes

7) Yes

8) No

Step-by-step explanation:

Each equation must be increasing or decreasing by a constant amount in order for it to be linear. Graphing these equations, you can see that the linear equations will be a straight line.

Answer:

  f⁻¹(x) = 3/2x +9

Step-by-step explanation:

You want the inverse of the function f(x) = 2/3x -6.

The inverse function can be found by solving for y:

  x = f(y)

Here, that is ...

  x = 2/3y -6

  x +6 = 2/3y . . . . . . . . . . . . . . add 6

  y = 3/2(x +6) = 3/2x +9 . . . . multiply by 3/2

The inverse function is f⁻¹(x) = 3/2x +9.

__

Additional comment

Sometimes the division symbol ÷ is used to mean "divided by everything after this symbol." If that is the intended meaning, the function should be written as f(x) = 2/(3x -6) or f(x) = 2÷(3x -6).

We have interpreted the symbol according to the order of operations, which tells us that 2÷3x-6 means ((2÷3)·x)-6.

<95141404393>

Answer:

-7/3

Step-by-step explanation:

Parallel lines have same slopes.

Answer:

D. 3

Step-by-step explanation:

The slopes of parallel lines are the same.

Answer:

y=179

Step-by-step explanation:

the statement is true.

you need to replace (x) for 4 and solve

y= 40(4) + 19

y=160 + 19

y=179

it costs 179$ for 4 weeks so the statement is true

Answer:

4

Step-by-step explanation:

use the distace formula:

square root of (x2-x1)^2 + (y2-y1)^2

give brainliest please

For the described situation, y  = 6sin ( (π / 10) x )  -  10 is the sine function.

The trigonometric functions in mathematics are real functions that connect the right-angled triangle's angle to the ratios of its two side lengths.

They are extensively employed in all fields of geometry-related study, including geodesy, solid mechanics, celestial mechanics, and many others.

Asin(Bx)+C is the usual sine function formula.

A buoy bobs 6 meters up and down.

That is, the amplitude of the buoy shifts by 6 meters both vertically and horizontally.

A=6 Amplitude

The x-axis distance that constitutes one complete oscillation is known as the period.

We are aware that it takes a buoy 10 seconds to go from its greatest position to its lowest point (half oscillation).

20 seconds make up the complete oscillation period.

⇒ 20 (B) = 2π

B=2π /20

= π/ 10

Given that the buoy is 10 meters under the ocean's surface, C equals –10.

Using the formula's whole range of values:

⇒y  = 6sin ( (π/ 10) x )  -  10

The midline is the initial point.

x=0 is the first point.

⇒y=6sin(0)-10

y= -10

The line is drawn from the origin at y = -10.

Either the highest or smallest value is at the second point.

Therefore, (5,-4) and (15, -16.)

Therefore, for the described situation, y  = 6sin ( (π / 10) x )  -  10 is the sine function.

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Complete question:
At an ocean depth of 10 meters, a buoy bobs up and then down 6 meters from the ocean's depth. Ten seconds pass from the time the buoy is at its highest point to when it is at its lowest point. Assume at x = 0 the buoy is at normal ocean depth. Use the sine tool to graph the function. The first point must be on the midline and the second point must be a maximum or minimum value on the graph closest to the first point.

Answer:

I think one of the easiest ways to check the answer to a factoring problem is to foil. This will tell you if you factored correctly. Once you have answers you put the answers back into the original equations to see if both sides are equal. These are very general ideas.

Hope this help you!:)

Tony must give 3 pencils to Peter,

A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.

Variables are the name given to these symbols because they lack set values.

In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.

Given:

Let Peter has x pencils and Tony has y pencils.

Then, we have equation x=3y (Peters pencils are 3 times as Tony).

Total pencils =  30+14

                     = 44 pencils.

So, x + y=44

Put x= 3y we get

3y+ y= 44

4y= 44

y= 11

Thus, Tony must give 3 pencils to Peter,

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Answer:

You are bord and I'm stuck in a Geometrie assignment because I have a lot of missing work so I have to submit them before June 05 :(

Step-by-step explanation:

Answer:

same

Step-by-step explanation:

- listen to music

- if u have a sibing brag to them that u have  freands and they dont

- go get Starbucks

- listen to true crime stores

thats what i do

Answer:

Yes, the zeros can be used as place holders. When using place holders, the value does not change.

On solving the provided question, we can say that - here in graph Between the lowest number, which is 0, and the highest value, which is 5, there is a range. The range is therefore -9=y=5.

Graphs are visual representations or charts used in mathematics to methodically express data or values. A relationship between two or more objects is frequently represented by a point on a graph. A non-linear data structure called a graph is made up of nodes, or vertices, and edges. Connect the nodes, also known as vertices. This graph comprises a set of vertices V= 1, 2, 3, 5, and a set of edges E= 1, 2, 1, 3, 2, 4, and (2.5), (3.5), (4.5). Statistics graphs (bar charts, pie charts, line charts, etc.) Exponential diagrams. triangle graph, a logarithmic graph

There is a range between the minimum value, which is 0, and the greatest value, which is 5. Thus, the range is -9=y=5.

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Answer:

No, it is not true

Step-by-step explanation:

y ≤ 5x + 4

We know a point is (1,10), we need to put the 1 in for x and the 10 in for y to see if the inequality is true or not!

10 ≤ 5(1) + 4

10 ≤ 5 + 4

10 ≤ 9

This is not True!

Answer: nope

Step-by-step explanation:

Hence option (B) is a correct choice and rest all other options are incorrect

1/b^2 ∑ (-1)^k(t^2/b^2)^k                                        
                             

Step-by-step explanation:

 Remember that the sum of infinite GP is given by the formula blow:
First term=a
Common ratio=r

S=a/1 - r                                          

Wherever the common ratio r falls within the interval (-1,1)

When the given series is compared to the infinite sum:

First term=a
Common ratio=r
S=  a/1-r = 1/b^2+t^2
Now given: |t| < |b|=0<t^2/b^2<1
S=1/B^2.1/1-(-T^2/B^2)
=A=1
R=-T^2/B^2
Writing the general form:

Hence option (B) is a correct choice.

What are real numbers simple definition?

Real numbers can be defined as the union of both rational and irrational numbers. They can be both positive or negative and are denoted by the symbol “R”. All the natural numbers, decimals and fractions come under this category.

INCOMPLETE QUESTION: if b and t are real numbers such that 0<|t|<|b|, which of the following infinite series has sum 1b2 t2
A) 1/b^2 ∑(t^2/b^2)^k.
B) 1/b^2 ∑(-1)^K(t^2/b^2)^k.
C)B^2∑(T^2/B^2)^K
D)b^2∑(-1)(t^2/b^2)^k

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