NEED HELP WILL GIVE BRAINLIEST

NEED HELP WILL GIVE BRAINLIEST

Answers

Answer 1

Answer:

B

Step-by-step explanation:

Solution to these system of equations is where they intercept

Answer 2

Answer:

B. (-2, -3)

Step-by-step explanation:

Graphically, the solution to a system of equations is where the two lines of the system intersect. In this given system of equations, the lines intersect at the point (-2, -3), thus the solution to the system of equations is (-2,-3), or option (B).


Related Questions

Equations of Exponential Functions


A 30-gram sample of bacteria has some unknown disease that is killing the bacteria. The amount of bacteria is measured each day and the results are shown in the table.


What is the amount of bacteria on the 8th day?


a. On the eighth day, the bacteria is 1.72 grams

b. On the eighth day, the bacteria is 19.90 grams

c. On the eighth day, the bacteria is 6.23 grams

d. On the eighth day, the bacteria is 6271.89 grams


Please select the best answer from the choices provided

Answers

Answer:

B. On the eighth day, the bacteria is 19.90 grams

Step-by-step explanation:

I calculated it logically

4. ABCD below is a rectangle. BE=6x+2 and ED=4x+6. Find the length of AC.

Answers

Answer:

28 units

Step-by-step explanation:

ABCD is a rectangle. AC and BD are diagonals intersecting at point E.

Diagonals of a rectangle bisect each other.

[tex] \therefore BE = ED[/tex]

[tex] \therefore 6x + 2 = 4x + 6[/tex]

[tex] \therefore 6x - 4x= 6-2[/tex]

[tex] \therefore 2x= 4[/tex]

[tex] \therefore x= \frac{4}{2} [/tex]

[tex] \therefore x= 2 [/tex]

[tex] \therefore 6x + 2= 6*2+2= 12+2= 14 [/tex]

[tex] \therefore BE= 14\: units [/tex]

[tex] \because BD = 2BE[/tex]

[tex] \therefore BD = 2(14)= 28\: units [/tex]

[tex] \because AC = BD[/tex] (diagonals of a are equal in measure)

[tex] \therefore AC = 28\: units [/tex]

Complete the proof of ∆JKL ≅ ∆LMN, by providing the reason for each of the statements below. Reasons MAY be used more than once. NOT ALL reasons will be used.
1. JK ∥ LM, KL ∥ MN (Given)
2. ∠KJL ≅ ∠MLN; ∠KLJ ≅ ∠MNL
a. Reflexive Property
b. Alternate Interior Angles
c. Corresponding Angles
d. ASA
e. AAS
3. JK ≅ LM (Given)
4. ∆JKL ≅ ∆LMN
a. Reflexive Property
b. Alternate Interior Angles
c. Corresponding Angles
d. ASA
e. AAS

Answers

Answer:

See below

Step-by-step explanation:

1. JK ∥ LM, KL ∥ MN                                 Given

2. ∠KJL ≅ ∠MLN; ∠KLJ ≅ ∠MNL           c. Corresponding Angles  

3. JK ≅ LM                                               Given

4. ∆JKL ≅ ∆LMN                                     e. AAS

how to solve this equation for x x/3+7-5

Answers

the answer is right there

4. What is the area of the shaded region in the figure below?
67
A
IT or 20.30 e
8
67
B
3 feet
IT or 17.50
12
10
O or 3.49
0
D
5
IT or 1.90 Ft
8

Answers

The answer is A most probably because the whole area is 28 ft. ^2

Without graphing, find the slope of the line that goes through (-3,-2) and (-1,-5)

Answers

-5+2 -3 3
——- = — = - — // hope this helps!
-1+3 2 2

The diameter of cork of a Champagne bottle is supposed to be 1.5 cm. If the cork is either too large or too small, it will not fit in the bottle. The manufacturer measures the diameter in a random sample of 36 bottles and finds their mean diameter to be 1.4 cm with standard deviation of 0.5 cm. Is there evidence at 1% level that the true mean diameter has moved away from the target?

Answers

Answer:

[tex]t_{n-1,\alpha/2}=3.59114678[/tex]

Therefore we do not have sufficient evidence at [tex]1\%[/tex] level that the true mean diameter has moved away from the target

Step-by-step explanation:

From the question we are told that:

Sample size [tex]n=36[/tex]

Mean diameter [tex]\=x=1.4[/tex]

Standard deviation [tex]\sigma=0.5cm[/tex]

Null hypothesis [tex]H_0 \mu=1.5[/tex]

Alternative hypothesis [tex]\mu \neq 1.5[/tex]

Significance level [tex]1\%=0.001[/tex]

Generally the equation for test statistics is mathematically given by

[tex]t=\frac{\=x-\mu}{\frac{s}{\sqrt{n} } }[/tex]

[tex]t=\frac{1.4-1.5}{\frac{0.5}{\sqrt{36} } }[/tex]

[tex]t=-1.2[/tex]

Therefore since this is a two tailed test

[tex]t_{n-1,\alpha/2}[/tex]

 Where

   [tex]n-1=36-1=>35[/tex]

   [tex]\alpha=/2=0.001/2=>0.0005[/tex]

From table

[tex]t_{n-1,\alpha/2}=3.59114678[/tex]

Therefore we do not have sufficient evidence at [tex]1\%[/tex] level that the true mean diameter has moved away from the target

Which statement best applies to the function y = x squared?
a.
The domain only includes numbers greater than or equal to 0.
c.
Both the domain and range only include numbers greater than or equal to 0.
b.
The range only includes numbers greater than or equal to 0.
d.
The domain and range include all real numbers.

Answers

Answer:

b.  The range only includes numbers greater than or equal to 0.

Step-by-step explanation:

Any square of a number will never lead to a negative number

The range of an equation is it's numerical possibilities for y

Since a square of a negative number never leads to a negative y

The answer is therefore, the range can only be zero and above

(otherwise the roots would be imaginary)

If x = 5, then which inequality is true?
F -2x ≥ 12
G. x – 2 < 7
H. 2x > 12
J. x – 7 > 2

Answers

Answer is G
Explanation: Since X= 5, we’ll plug in X to anywhere it’s in the inequality with the number 5. So

5-2<7
5-2= 3
3<7
3 is in fact less than 7

Does anyone know? 6th grade work I need help please :( no link answer please

Answers

Answer:

Step-by-step explanation:

you add all them up

Answer:

C.

Step-by-step explanation:

there is a measuement of 12 cm missing.

Just multiply all the sides!

IF ITS CORRECT ILL GIVE BRAINLEIST

Draw a line plot to represent the data

Answers

Answer:

Make sure you include the words ^-^

Step-by-step explanation:

Estimate the answer by rounding the divisor to the nearest whole number.
196,900÷4.084

Answers

Answer:

48,213

Step-by-step explanation:

The full answer is 48,212.5367, but because there is a 5 in the tenths place you round the whole number up

9514 1404 393

Answer:

  49,000

Step-by-step explanation:

The divisor is 4.084. When it is rounded to the nearest whole number, it is 4.

Then the division problem becomes ...

  196,900/4 ≈ 49,000 . . . . . . showing just 2 significant digits for the estimate

__

The point of an estimate is to obtain an approximate answer that is within a few percent of the actual answer. Here, rounding 4.084 to 4.000 gives an error on the order of .084/4 ≈ 2.1%. Because we're using a smaller divisor, the value we obtain for our estimate will be too large by about that amount.

Often, an estimate that has 1 or 2 significant digits is "close enough" for the purpose. Because a change in our estimated value of 1 in the least significant digit is a change of about 2%, we judge this estimate to be "close enough", given the rounding we did to start. Keeping 3 significant digits in our estimate would claim an accuracy that it does not have.

Represent the following sentence as an algebraic expression, where "a number" is the
letter x. You do not need to simplify.
3 is divided by the difference of 4 and a number.
Answer:
Submit Answer
Il
DELL
******
attempt 1 out of 2

Answers

The given statement can be written as expression given by -

y = 3 ÷ (4 - x)

What are equations?

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign "=".

Given is the statement as -

"3 is divided by the difference of 4 and a number"

Assume the number to be {x}. Then, we can write the expression as -

3 ÷ (4 - x)

Let this expression is equivalent to {y}. We can write -

y = 3 ÷ (4 - x)

Therefore, the given statement can be written as expression given by -

y = 3 ÷ (4 - x)

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n x (5 + 3) = (6 x 5) + (6 x 3) write the missing number.

Answers

Answer:

6 is the missing number

Step-by-step explanation:

Solve what is inside of the parenthesis, then evaluate.

N x (8) = (30) + (18)

8N = 48

Solve for N.

N = 48/8

N = 6

Can you please help me

Answers

9514 1404 393

Answer:

  x = 90°

  y = 30°

Step-by-step explanation:

The relevant relations are ...

an inscribed angle is half the measure of the arc it interceptsthe sum of angles in a triangle is 180°the sum of arcs of a circle is 360°

Arc AB is half a circle, so is 180°. Inscribed angle C intercepts that arc, so is half its measure: x = 90°.

The angles of a triangle total 180°, so y has the value that makes the sum of angles be 180°.

  y = 180° -90° -60°

  y = 30°

_____

Additional comment

It is worth remembering that a triangle inscribed in a semicircle is a right triangle. This tells you right away that x=90°.

Convert the following component vectors to a linear combination:

< 20 , 14 , -23 >

Answers

The component vectors to a linear combination is given by the equation

A = 20 i^ + 14 j^ - 23 k^

What is the product of vectors?

The dot product, or inner product, of two vectors, is the sum of the products of corresponding components. Equivalently, it is the product of their magnitudes, times the cosine of the angle between them . The dot product , also known as the inner product, of u and v to be the number u ⋅ v given by

u ⋅ v = u₁v₁ + u₂v₂ + u₃v₃

An equivalent definition, typically used in physics, is

u ⋅ v = ∣u∣ ∣v∣ cos θ,

where θ is the angle between u and v

Two nonzero vectors are perpendicular, or orthogonal, if and only if their dot product is equal to zero

Given data ,

Let the component vectors be represented as A

The value of A is

< 20 , 14 , -23 >   be equation (1)

On simplifying the equation to the linear combination , we get

< 20 , 14 , -23 > = 20 i^ + 14 j^ - 23 k^

So , the linear combination of the vectors is given by the equation ,

A = 20 i^ + 14 j^ - 23 k^

Hence , the equation is 20 i^ + 14 j^ - 23 k^

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Helpp!! I’m stuck on this!!

Answers

Answer - solution to
graph one = (-3, -1) see attached graph
Graph two = (1, -2) see attached graph

Write and solve a system of equations for each of the following problems. You must write two questions for each problem, thank you

1. Ella is a landscape photographer. She sells small prints for $50 each, and large prints for $75
each. One weekend she sold a total of 52 prints for a total of $2975. How many of each size print did
Ella sell?
2. At a hot air balloon festival, Georges's balloon is at an altitude of 40 meters and rises at a rate of
10 meters per minute. William's balloon is at an altitude of 165 meters and descends at a rate of 15
meters per minute. In how many minutes will both balloons be at the same altitude? What is that
altitude?

Answers

The system of equations that satisfy the given problems is x + y = 52 and 50x + 75y = 2975, and the value of x = 15 and y= 37.

What is system of equations?

A system of linear equations consists of two or more equations and looks for common answers.

1. Let us suppose small prints = x

Large prints = y

Total prints sold can be written as follows:

x + y = 52

The total cost of the prints can be written as follows:

50x + 75y = 2975

The system of equations is:

x + y = 52   . . . equation 1

50x + 75y = 2975 . . .equation 2

Using equation 1 we have:

x = 52 - y

Substituting the value of x in equation 2 we have:

50(52 - y) + 75y = 2975

2600 - 50y + 75y = 2975

25y = 2975 - 2600

25y = 375

y = 15

Now, substituting the value of y in equation 1 we have:

x + 15 = 52

x = 52 - 15

x = 37

Hence, the solution of the system of equations is y = 15 and x = 37.

2. Let us suppose the altitude = x.

The rising balloon can be thus written as:

40 +10x

The descending balloon can be written as:

165 - 15x

Solving the system of equations by substituting the value of x we get x= 5.

Hence, the altitude at which both the balloons are at the same height is 5m.

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Refer to the second stanza of the poem, at the
top of page 2. What can be inferred about the
setting based on the evidence in this stanza?
5

Answers

Answer:

A: the forest is at this moment being threatened by severe weather

Step-by-step explanation:

the mean of 100 nummerical observations is 51.82

Answers

If the mean of 100 nummerical observations is 51.82 then the value of all 100 numbers is 5182.

What is Statistics?

Statistics is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data.

Given that mean of 100 nummerical observations is 51.82

We need to find the sum of all the observations

The formula to find mean is mean=Sum of observations/ Number of observation

From given mean=51.82

Number of observations =100

Let us take x as sum of all 100 numbers

So 51.82=x/100

Now apply cross multiplication

x=51.82×100

x=5182

Hence, if the mean of 100 nummerical observations is 51.82 then the value of all 100 numbers is 5182.

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Two distinct intersecting lines intersect at a single point. Is it true or false

Answers

it is true……………………..

Plz help me well mark brainliest if correct!!

Answers

Answer:

A) 32 cm

Step-by-step explanation:

the rectangle could be 12cm x 4cm, giving an area of 48 sq cm

and a perimeter of 24+8 or 32 cm

Please help me with these questions if can explain i am a bit confused at it

Answers

On solving the provided question, we can say that - he re the slope value is using the formula y/x = k => [tex]k = 2/3[/tex]

what is slope?

A line's steepness is determined by its slope. The "gradient overflow" is a mathematical expression for the gradient (the change in y divided by the change in x). The ratio of the vertical change (rise) between two points to the horizontal change (run) between the same two places is referred to as the slope. The slope-intercept form of an equation is used to represent each time a straight line's equation is stated as y = mx + b. The line's slope is m. b is b at the point where the y-intercept is, and (0, b). As an illustration, the equation y = 3x - 7 has a slope of 3, and its y-intercept is (0, 7).

Use the point (3, 2) and divide y by x using the formula y/x = k.

[tex]k = 2/3[/tex]

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A tissue box in the shape of a rectangular prism has a surface area of 158 square inches . The width is 5 inches and the height is 3 inches . What is the length of the tissue box ?

Answer Choices - A. 8.0
B. 8.5
C. 9.0
D . 10.5​

Answers

Answer:

A. 8.0 inches

you will have to use the formula A= 2(LW + LH + WL)

Cylinder A has a radius of 7 inches and a height of 5 inches. Cylinder B has a volume of 490TT. What is the percentage change in volume from cylinder A to cylinder B?
50% decrease
0.75% increase
150% decrease
O 100% increase

Answers

The answer for this question is 150% decrease

Several minutes later, Raul decides to measure the water temperature again. He finds that the temperature changed by -0.6°F. What is the temperature of the water now? Show your work.

Answers

The current temperature of the water is given as follows:

71.7 ºF.

How to obtain the current temperature of the water?

The defining statement from the problem is given as follows:

He finds that the temperature changed by -0.6°F.

The change by the negative amount of -0.6ºF means that the current temperature of the water is obtained subtracting the previous temperature of the water by 0.6 ºF.

The previous temperature of the water is given as follows:

72.3°F.

Hence the current temperature of the water is obtained subtracting 72.3ºF and 0.6ºF, as follows:

72.3 - 0.6 = 71.7 ºF.

Missing Information

The previous temperature of the water is given as follows:

72.3°F.

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Directions: Solve these equations by using addition. You will need to use your fraction and decimal skills to solve these equations.


A number increased by 1 2/3 is equal to 8

Answers

Answer:

6 and 1/3

Step-by-step explanation:

8 minus 1 is 7 and 7 minus 2/3 is 6 1/3. Therefore the number you started with is 6 and 1/3. Hope this helps :)

(1,0) m=-5

Formula
Y-Y1 = m(x-x1)
Slope form

Answers

Slope form -

y - y1 = m(x - x1)

y - 0 = -5(x - 1)

y = -5x + 5

A manager samples the receipts of every fifth person who goes through the line. Out of 50 people, 6 had
a mispriced item. If 900 people go to this store each day, how many people would you expect to have a
mispriced item?

Answers

Answer:

48

Step-by-step explanation:

PLEASE HELP ME RIGHT NOW DUE TOADY ASAP

Answers

Answer:

A 0.9102

Step-by-step explanation:

A correlation coefficient tells us the strength of the linear relationship between two variables. It is measured on a scale from +1 to -1.

The gradient is positive as it is going up the slope, so the correlation coefficient is positive. We can rule out B.

A correlation coefficient of 0 suggests there is no correlation, however, the scatter graph shows a positive correlation, so we can rule out C.

A correlation coefficient of 1 implies that there is a perfect positive correlation, so all the scatter points lie in a straight line. In the scatter graph given, the points do not all lie on a straight line, so we can rule out D.

Hence, the correlation coefficient is A, 0.9102

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