Please help.
Algebra.

Please Help.Algebra.

Answers

Answer 1
The answer to your answer is b
Answer 2
the answer is B. MULTIPLY the top equation by (-1)

Related Questions

(7^0)*7^2. please solve this problem fast​

Answers

Answer:

49

Step-by-step explanation:

PLease mark brainliest

Which of the following is an expression for "doubling a number n and dividing by 3"

Answers

Answer:

its 2n / 3 i hope it helped u thanks

La profundidad de una alberca aumenta paulatinamente desde 0.80 metros hasta 3 metros en una longitud de 10 metros cual es el angulo de inclinacion de la alberca

Answers

Answer:

El ángulo de inclinación de la alberca es aproximadamente 12.407º.

Step-by-step explanation:

Puesto que conocemos la distancia horizontal ([tex]l[/tex]) y la variación en la profundidad ([tex]h[/tex]) de la alberca, en metros, podemos emplear la siguiente razón trigonométrica para calcular el ángulo de inclinación de la alberca ([tex]\alpha[/tex]), en grados sexagesimales:

[tex]\alpha = \tan^{-1}\left(\frac{h}{l} \right)[/tex] (1)

Si sabemos que [tex]l = 10\,m[/tex] y [tex]h = 2.20\,m[/tex], entonces el ángulo de inclinación de la alberca es:

[tex]\alpha \approx 12.407^{\circ}[/tex]

El ángulo de inclinación de la alberca es aproximadamente 12.407º.

In a lab, 450 cells are present at the beginning of an experiment. The number of cells increased by 18% each hour. a) Write an exponential growth model giving the number of cells y present t hours after starting the experiment. b) Estimate the time when the number of cells is 1,030.

Answers

Answer:

Step-by-step explanation:

y = 450 × 1.18^t

:::::

450 × 1.18^t = 1,030

1.18^t = 1,030/450 = 103/45

t×ln(1.18) = ln(103/45)

t ≈ 5 hours

Duncan is running to raise awareness and money for cancer. He finds 2 people who have pledged to
donate money based on the distance he runs. His neighbor says he will donate $0.25 for every 40 feet
Duncan runs. His aunt also says that she will donate $12 for every mile he runs. If Duncan runs a total of
7 miles during the cancer awareness run, how much money will he have raised based on these two
donations?

Answers

Answer:

$1008

Step-by-step explanation:

12 x 7 = $84 his aunt gives him.

1 mile = 5,280 feet

5,280 x 7 = 36,960 feet he ran.

5,280 ÷ 40 = 132 for every mile he runs

132 x 7 = $924 from his neighbor.

924 + 84 = 1,008

Please help we with this.

"a card is shaped like a rectangle, The card is 9 centimeters long and 4 centimeters wide. what is the area?"

answers:

49
36
13
5

Answers

Answer:

36

Step-by-step explanation:

To find area you multiply length×width which is the same as 9×4

9×4= 36

Answer:

36 centimeters

Step-by-step explanation:

A = l x w

A = 9 x 4

A = 36

Plz plz help I’m failing math and need help

Answers

Answer:

5 sweat shirts- $100

8 sweat shirts- $160

9 sweat shirts- $180

12 sweat shirts- $240

Step-by-step explanation:

Each sweat shirt costs $20

help me please!!!!!!!!​

Answers

Answer:

16/19 students

New Answer:

3/5 students

Step-by-step explanation:

An English instructor asserted that​ students' test grades are directly proportional to the amount of time spent studying. Lisa studies 4 hr for a particular test and gets a score of 72. At this​ rate, how many hours would she have had to study to get a score of 96​?

Answers

Answer:

12 hours.

Step-by-step explanation:

can you begin solving x-2/x+3 ≥2 by multiplying both sides of the inequality by x+3? Explain your answer.

Answers

Answer:

yes, but there is a better way

Step-by-step explanation:

instead of multiplying x+3 on both sides, I would instead subtract 2 on both sides. If you do this, it would be easier to write this equation in standard form and find the intervals.

In summary, to solve the inequality (x - 2)/(x + 3) ≥ 2, we can multiply both sides of the inequality by x + 3 only when x > -3 to preserve the direction of the inequality.

To solve the inequality (x - 2)/(x + 3) ≥ 2, we need to consider the impact of multiplying both sides of the inequality by x + 3.

When multiplying both sides of an inequality by a positive number, the direction of the inequality remains the same. However, if we multiply both sides by a negative number, the direction of the inequality is reversed.

In this case, the expression x + 3 is in the denominator of the left side of the inequality. If we multiply both sides of the inequality by x + 3, we need to consider two scenarios:

If x + 3 is positive: In this case, we can multiply both sides of the inequality by x + 3 without changing the direction of the inequality.

If x + 3 is negative: Multiplying both sides of the inequality by x + 3 would require flipping the direction of the inequality.

Therefore, we need to ensure that x + 3 is positive before multiplying both sides by x + 3 to preserve the direction of the inequality.

To determine when x + 3 is positive, we set the denominator equal to zero and solve for x:

x + 3 = 0

x = -3

So, if x > -3, then x + 3 is positive.

In summary, to solve the inequality (x - 2)/(x + 3) ≥ 2, we can multiply both sides of the inequality by x + 3 only when x > -3 to preserve the direction of the inequality.

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what is the end behavior of
A(x)=(x+3)(x-4)(3x-7)(4x-3)

Answers

Answer:

Step-by-step explanation:

Since the highest power is x^4, y increases without bound as x approaches positive or negative infinity. So the end behavior is positive infinity.

What equation represents this function?

Answers

I think it’s y = -3x + 6

what two numbers multiply up to -24 and add up to 2​

Answers

Answer: whatdidshesay

Step-by-step explanation:

Tell whether the equation has one, zero, or infinitely many solutions.
5(x - 2) + 8 = 5x - 1

Answers

Answer:

zero (no solution)

Step-by-step explanation:

Factor completely: 2x^3-12x^2+18x

Answers

Answer:

2x(x - 3)²

Step-by-step explanation:

We can simplify this a lot by first factoring 2x out of each term:

2x³ - 12x² + 18x

= 2x(x² - 6 + 9)

We can then factor the trinomial fairly easily, as it's a perfect square:

= 2x(x - 3)²

HELP PLEASE 24 POINTS

Answers

Answer:

C

Step-by-step explanation:

How far up the house would a ladder be resting if it is 25 ft long and 3 ft
away from the house? Round to the nearest tenth if necessary.
5.3 ft
21 ft
24.8 ft
25.2 ft

Answers

Answer:

C

Step-by-step explanation:

The last one is absurd. You can't have a ladder reaching higher than itself. The question is a Pythagorean problem.

Givens

a = 3

b = ?

c = 25 feet

Formula

a^2 + b^2 = c^2

Solution

3^2 + b^2 = 25^2

9 + b^2 = 625                  Subtract 9 from both sides.

b^2 = 625 - 9

b^2 = 616                        Take the square root of both sides.

b = sqrt(616)

b = 24.8

Matthew had 11.9 meters of string. He cut the string into pieces that were each 0.34 meter long.

How many pieces of string was he able to cut?

Enter your answer in the box.

Answers

Answer:

35

Step-by-step explanation:

11.9/0.34 = 35

Answer: 35

Answer:

35 pieces of string.

Step-by-step explanation:

Matthew was cutting a 11.9 meter piece of string into 0.34 meter pieces, to find the solution for this divide 11.9 by 0.34. If you want to know how to do this by hand I would use a khan academy video.

For kite JKLM, find m∠1.

Answers

Answer:

∠1=38°

Step-by-step explanation:

KM bisects ∠JML. Therefore, ∠JMN=∠LMN

∠JMN=∠LMN

38°=∠1

Write an equivalent ratio described in the situation below. The ratio of boys to girls is 5/2

Answers

Answer:

5: 2 or 10: 4

Step-by-step explanation:

as a ratio, this would be 5: 2.

Im not sure if it's asking you to also make a new ratio that fits this, but if it is you could multiply both sides by 2 to get

10 : 4

subtract (7x - 3) -(5-3x)​

Answers

Answer:

4x-8

Step-by-step explanation:

7x-3-5-3x

combine like terms

7x-3x-3-5

4x-8

unless there is a value for x then that is all i can do

hope this helps:)

Answer: 10x - 8

Step-by-step explanation:

(7x - 3) -(5-3x)​

= (7x - 3) - 5 + 3x      Made them without ​parentheses. For -(5-3x), because there are - in front them, which means to multiply -1, so it become -5+3x.

= 7x - 3 - 5 + 3x

= 7x + 3x - 3 - 5

= 10x - 8

Please answer this for me pleaseeeee

Answers

Answer:

[tex]\Huge\boxed{x=71.9}[/tex]

Step-by-step explanation:

Hello There!

Once again we are going to use trigonometry to solve for x

Here are the Trigonometric Ratios

sin = opposite divided by hypotenuse

cos = adjacent divided by hypotenuse

tan = opposite divided by adjacent

we need to find x and we are given its opposite side length (58) and the adjacent side length (19)

this corresponds with tangent so once again we will be using tangent to solve for x

Looking at tangent we see that its equal to opposite divided by adjacent so we create an equation

[tex]tan(x)=\frac{58}{19}\\\frac{58}{19} =3.052631579[/tex]

now we have

[tex]tan(x)=3.052631579[/tex]

Once again we need to get rid of the tan

to do so we take the inverse of tan ( tan^-1) and apply it to each side

[tex]arcsin^-^1(tan(x))=x\\arcsin^-^1(3.052631579)=71.86191784[/tex]

finally we round to the nearest tenth

we're left with x = 71.9

Need help plzzzzz will give Brainly est

Answers

Answer: 6 years

Step-by-step explanation:

The formula for the Simple interest is given as: = PRT

Since we've been given some values already, we slot it into the formula and this will be:

Interest = PRT

78.12 = 217 × 6% × T

78.12 = 217 × 0.06 × T

78.12 = 13.02T

T = 78.12/13.02

T = 6

Time = 6 years

Alyssa uses 4 ounces of flour to make pancakes each morning how long will it take her to use up a 6 pound bag

Answers

there is 16 ounces in a pound so you would do 6 x 4 which equals 24 days or mornings it would take to use the 6 pounds

If Alyssa uses 4 ounces of flour to make pancakes each morning how long will it take her to use up a 6 pound bag is 24 days.

Number of days

Using this formula

Number of days=Number of ounces×Number of pound bag

Where:
Number of ounces=4 ounces

Number of pound bag=6

Let plug in the formula

Number of days=4×6

Number of days=24 days

Therefore  how long will it take her to use up a 6 pound bag is 24 days.\]

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–7 + 8x2 – 4x




WHY WHY WHY

Answers

Answer:

3

Step-by-step explanation:

8*2 = 16 + -17 = -1 - 4 = 3

Answer:

3 if you accidentally put that x at the end there.

Step-by-step explanation:

For brainiest:):):):):)

Answers

A) the perimeter would be 16 cm and the area would be 16 cm^2
B) the perimeter would be 64 mm and the area would be 256 mm^2

Answer:

64 mm and 16 cm

Step-by-step explanation:

What’s the missing side length?

Answers

4 yd. 9-5=4. Hope this helps!

Work out the size of angle BCD

Answers

Answer:

sin62=BD/AB

BD=Sin62×AB

BD=Sin62×15

BD=13.24

ALSO,

Tan C = BD/BC

Tan C = 13.24/24

Tan C = 5.51 / 10

C = Tan^-1 ( 5.51 / 10 )

Answer:

∠BCD = 29°

Step-by-step explanation:

sin 62 = BD/15

0.8829 = BD/15

BD = 13.24

tan ∠BCD = 13.24/24 = 0.5517

∠BCD = 29°

PLEASE HELP ME WITH MATH!!
The question is: Thirteen plus 5 times a number is no more than 30.”

Answers

Let the number be x.

13 + 5x < 30

5x < 30 - 13

5x < 17

x < 17/5

Step-by-step explanation:

let number be x

equation= 13 + 5x =or<30

if 13+5x=30

5x=17

x=3.4

Triangle DFE with coordinates D(0,0), F(3,0), and, E(3,1) is similar to triangle EHG. If vertex G has coordinates (9,3), what are the coordinates of vertex H?

Answers

Answer:

coordinates are (x,y)->(x+6,y+2)

F's coordinate is (3,0)

using the coordinates we get (9,2)

Therefore the coordinates are (9,2)

The required coordinates of vertex H are (6,2).

What is a Triangle?

Triangle is defined as a basic polygonal shape of a triangle that has three sides and three interior angles.

Given that triangles DFE and EHG are similar.

This means that the ratios of the lengths of their corresponding sides are equal.

As per the question, we have:

DF/FH = DE/EG

Since DF = 3 and DE = 1, we can set up the following equation to find the length of FH:

FH = EG × (DF/DE)

Substituting the known values, we get:

FH = EG × (3/1)

As we know that EG = 6, we can substitute this value to find that FH = 18.

The coordinates of F are (3,0) and the coordinates of H are (x,y), we can set up the following equations to find the values of x and y:

x - 3 = 18

y - 0 = 2

Solving these equations, we find that x = 21 and y = 2.

Thus, the coordinates of vertex H are (6,2).

Learn more about the triangles here:

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