Pls help. im have such a bad day.

Solve.
2x + 1 = 3x – 4

A.x = 1
B.x = 5
C.x = –5
D.x = –1

Answer:%28a-b%29%2Fb=c

a-b=bc

a=bc%2Bb

a=b%28c%2B1%29

a%2F%28c%2B1%29=b

b=a%2F%28c%2B1%29

So the answer is b=a%2F%28c%2B1%29

New! FREE algebra solver that shows work:  

3x-x+2=4

plz mark me the braniest

Step-by-step explanation:

Answer:

y = 21

x = 8

Step-by-step explanation:

AB = 180

27 + 3y = 90°

-27           -27

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

3y = 63

÷3     ÷3

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

y = 21

x + 27 + 3y + 8x + 18 = 180

9x + 45 + 3(21) = 180

9x + 45 + 63 = 180

9x + 108 = 180

      -108   -108

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

9x = 72

÷9    ÷9

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

x = 8

I hope this helps!

Answer:

They earn $141

Step-by-step explanation:

On the first day, the members earned 90% of their daily goal so we need to find out what 90% of 50 is.

90 × 50 ÷ 100

= 4500 ÷ 100

= $45

On the second day, the members earned 6% more than their daily goal.

6% of 50 + 50

(6 × 50 ÷ 100) + 50

= (3) + 50

= $53

On the third day, the members earned 14% less than their daily goal.

14% of 50 - 50

50 - (14 × 50 ÷ 100)

= 50 - (7)

= $57

Now we add the earings up =

$45 + $53 + $43

= $141

Answer:

doodey

Step-by-step explanation:

Answer:

The image is blurry on my screen

Step-by-step explanation:

Answers in the picture

1. Atoms 2. electrons, 3. protons and neutrons 4. Static, 5. Gains.

Answer:

Option (1)

Step-by-step explanation:

x               -2              -1                 0                    1                   2

y               10            2.5                0                  2.5                3.0

Ist difference,

\(d_1=y_2-y_1\)

    \(=2.5-10=-7.5\)

\(d_2=y_3-y_2\)

    \(=0-2.5\)

    = -2.5

\(d_3=y_4-y_3\)

    \(=2.5-0\)

    = 2.5

\(d_4=y_5-y_4\)

    \(=10.0-2.5\)

    = 7.5

2nd difference,

\(x_1=d_2-d_1\)

    \(=-2.5+7.5\)

    = 5

\(x_2=d_3-d_2\)

    \(=2.5+2.5\)

    = 5

\(x_3=d_4-d_3\)

    \(=7.5-2.5\)

    = 5

Since 2nd difference is common, given table represents a quadratic equation.

Let the equation is,

y = ax²+ bx + c

For a point (0, 0) passing through the quadratic equation,

0 = c

Therefore, quadratic equation is y = ax² + bx

Since ordered pair (-1, 2.5) passes through the graph of the function,

2.5 = a(-1)² + b(-1)

a - b = 2.5 ------(1)

For another point (1, 2.5)

2.5 = a(1)² + b(1)

a + b = 2.5 ------(2)

By adding equations (1) and (2),

2a = 5

a = 2.5

and from equation (2)→ y = 0

Therefore, equation of the quadratic function given in the table is y = 2.5x²

Option (1) is the answer.

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

Explanation:

Locate -3 on the x axis. Then draw a vertical line as far up and down as you can. The goal is to see where this vertical line crosses the blue curve. In this case, the blue curve crosses the x axis here. We consider it an x-intercept.

So technically there isn't a need for a vertical line. However, I still recommend drawing it out since you may need to evaluate things like g(1) or g(-5) for future questions.

Anyways, the input x = -3 leads to the output y = 0. This represents the point (x,y) = (-3,0)

Therefore, g(-3) = 0 is the final answer

Answer:

Step-by-step explanation:

a

Answer:

Step-by-step explanation:

Fact

Fib

The center of Lily's data is approximately 50 minutes, which is the median of the data.

The center of Alessandra's data is approximately 60 minutes, which is the median of the data.

The interquartile range (IQR) of Lily's data is the difference between the third quartile (Q3) and the first quartile (Q1).
To find Q1 and Q3, we can count the number of data points and their positions in the double dot plot.

We see that Q1 is between 45 and 50 minutes, and Q3 is between 60 and 65 minutes.
Therefore, the IQR is approximately 15-20 minutes.The interquartile range (IQR) of Alessandra's data is the difference between the third quartile (Q3) and the first quartile (Q1).

To find Q1 and Q3, we can count the number of data points and their positions in the double dot plot. We see that Q1 is between 55 and 60 minutes, and Q3 is between 65 and 70 minutes.
Therefore, the IQR is approximately 5-10 minutes.

Fib.

From the double dot plot, we can see that there are more data points above 50 minutes for Alessandra, but Lily also has several data points above 50 minutes, and there are more data points clustered around 45-50 minutes for Lily.
Therefore, we cannot definitively conclude that Alessandra practices more than Lily based on this data.

Fib.

Consistency in practicing would mean that the data points are clustered closely together, which would result in a smaller interquartile range (IQR).
From our calculations in parts 5 and 6, we see that Alessandra's IQR is actually smaller than Lily's IQR, indicating that Alessandra's practice data is less variable and more consistent than Lily's practice data.

Answer: b) exponential.

Step-by-step explanation: the picture shows that the line is not going in a straight line. so it cant be linear.  

Answer:

A

Step-by-step explanation:

A. X=-3(4-1)

The triangle ΔXYZ was dilated and then it was reflected to create ΔQAG.

There are three types of translations -

Given is a triangle ΔXYZ.

Therefore, the triangle ΔXYZ was dilated and then it was reflected to create ΔQAG.

To solve more questions on graph rotation, visit the link below-

https://brainly.com/question/19527326

#SPJ7

Answer:

draw a line that makes a triangle and rectangle.

hypotenuse= 30

3k-4k-5k triangle

18-24-30

so the short part of triangle is 18 cm

10+10+18+24+30 equals 92

sorry for language I am not familiar with English

the perimeter of this shape is

24+10+10+30+\(\sqrt{30^{2} -24^{2} }\) = 92 cm

Answer:

25.685 square feet.

Step-by-step explanation:

Circumference = 2 * π * radius

From this, we can derive the formula for the radius:

radius = Circumference / (2 * π)

Let's substitute the value of the circumference and calculate the approximate radius:

radius = 18 / (2 * π)

radius ≈ 18 / (2 * 3.14159)

radius ≈ 2.865 feet

Now that we have the approximate radius, we can calculate the area:

Area ≈ π * radius²

Area ≈ 3.14159 * (2.865)²

Area ≈ 3.14159 * 8.193225

Area ≈ 25.685 square feet

Therefore, the approximate area inside the circular park is approximately 25.685 square feet.

Answer:

\(\frac{16}{27}\)

Step-by-step explanation:

From the table, we notice that the total number of students is:

\(3+10+8+6=27\)

Then, along the second column of the table, we notice that the number of students who do not have a brother is:

\(10+6=16\)

So, the probability that a randomly chosen student does not have a brother is:

\(\frac{\text{number of students who do not have a brother}}{\text{total number of students}}=\frac{16}{27}\)

Answer:

P(A) = 2/6

P(A’) = 4/6

Step-by-step explanation:

In probability theory, the complement of any event A is the event [not A], i.e. the event that A does not occur. The event A and its complement [not A] are mutually exclusive and exhaustive. Generally, there is only one event B such that A and B are both mutually exclusive and exhaustive; that event is the complement of A. The complement of an event A is usually denoted as A′, Aᶜ, ¬A or A. Given an event, the event and its complementary event define a Bernoulli trial: did the event occur or not?

Our complement, A’, would then be “rolls a 1, 2, 3, or 4.” We can illustrate this as follows: The event “rolling a 5 or 6” and its complement “rolling a 1, 2, 3, or 4.”

Answer:49

Step-by-step explanation:

First we can do x^-2. Anything to a negative power is 1 over that power. 7^-2 is 1/49. Now, we have 1 divided by that. Using the Keep, Flip, Change rule in dividing fractions, we have 1*49. This equals 49. So, your final answer will be 49

Step-by-step explanation:

Answer:

25

Step-by-step explanation:

(x + 1)(x + 2) x + 1

x+1+x+2+x+1

x+x+x+2+1+1

3x+4

when x=7

3(7)+4

21+4

25

Answer:

C. 6.9 miles

Step-by-step explanation:

Use Pythagoras theorem!

a^2 = b^2 + c^2 where a is the hypothenuse

rearrange to find x

a^2 - b^2 = c^2

so 8^2 - 4^2 = x^2

64 - 14 = 48

√48 = 6.9 miles :)

Here are the pairs matched with their products:

- (-5)(4.2) matches with -21

- (-7)(-3) matches with 21

- (2.5)(-9) matches with -22.5

Pairs (4) and (5) do not have corresponding products in the given options.

Answer:

y = 15

Step-by-step explanation:

We need to solve for k

y = x

21 = 7k  Divide both sides by 7 to solve for k

3 = k

y = xk

y = 5(3)

y = 15

Answer: y = 15

Step-by-step explanation:  

Answer: First blank is 15 then 28 then 25 in the last blank.

Step-by-step explanation:

On the left side column it is going up by 5 and the right column is going up by 7.

Answer:

1. 30 cm^2

2. 40 cm^2

Step-by-step explanation:

Area = b * h for a parallelogram

Answer:

k=-6

Step-by-step explanation:

Answer:

\(\Large \boxed{k=-6}}\)

Step-by-step explanation:

35 = -5(2k+5)

Expand brackets.

35 = -10k - 25

Add 25 on both sides.

60 = -10k

Divide both sides by -10.

-6 = k

Answer:

There is no table in your question.

Step-by-step explanation: