Given f(x)=5/2x+7,if f(x)=-13 find x
pls show work

Answers

Answer 1

Answer:

x=-25.5

Step-by-step explanation:

5/2(-13) +7=-25.5

Answer 2

Answer:

The value of x = -1/8

Step-by-step explanation:

Given

[tex]f\left(x\right)=\frac{5}{2x}+7[/tex]

[tex]f(x)=-13[/tex]

To determine

The value of x = ?

Using the function

[tex]f\left(x\right)=\frac{5}{2x}+7[/tex]

substituting f(x) = -13 in the function

[tex]-13=\frac{5}{2x}+7[/tex]

Subtract 7 from both sides

[tex]-13-7=\frac{5}{2x}+7-7[/tex]

Simplify

[tex]-20=\frac{5}{2x}[/tex]

Multiply both sides by 2x

[tex]-20\cdot \:2x=\frac{5}{2x}\cdot \:2x[/tex]

Simplify

[tex]-40x=5[/tex]

Divide both sides by -40

[tex]\frac{-40x}{-40}=\frac{5}{-40}[/tex]

[tex]x=-\frac{1}{8}[/tex]

Therefore, the value of x = -1/8


Related Questions

I need help please, how do U do this?

Answers

Answer:

1) point slope form: y-y1=m(x-x1) so  y-3=5/3(x-1)

y-3=5/3x-5/3

y=5/3x+4/3 <---bc 9/3-5/3=4/3

2)Plug in 1,2,3,4,5 for x and solve

y=5/3*1-4/3

y=1/3  (1, 1/3)

y=5/3*2-4/3

y=2 (2,2)

y=5/3*3-4/3

y=11/3 (3, 11/3)

y=5/3*4-4/3

y=16/3 (4, 16,3)

y=5/3*5-4/3

y=24/3 or 8 (5,8)

3) Plot the ordered pairs I wrote above

simplify the following expression 5-⁵/2 x 5⁹/2

Answers

Given:

Consider the given expression is

[tex]5^{-\frac{5}{2}}\times 5^{\frac{9}{2}}[/tex]

To find:

The simplified form of the given expression.

Solution:

We have,

[tex]5^{-\frac{5}{2}}\times 5^{\frac{9}{2}}[/tex]

Using properties of exponents, we get

[tex]=5^{-\frac{5}{2}+\frac{9}{2}}[/tex]           [tex][\because a^ma^n=a^{m+n}][/tex]

[tex]=5^{\frac{-5+9}{2}}[/tex]

[tex]=5^{\frac{4}{2}}[/tex]

[tex]=5^{2}[/tex]

[tex]=25[/tex]

Therefore, the simplified form of given expression is 25.

Michelle needs to rent storage space for some of her belongings. She paid a one-
time original storage fee of $50.00, and now pays $15.00 each month (m). Which
answer choice shows an expression that represents the total amount Michelle has
paid after a certain number of months (m)?
a 35m
b 65m
c 15m + 50
d 50m + 15

Answers

Answer:

c

Step-by-step explanation:

she pays a one-time fee of 50, and 15$ per month

Question attached. Will mark brainliest.

Answers

Answer:

So, the vertical asymptotes are x=+2

Step-by-step explanation:

correct me if im wrong

Instruction:

Question attached. Will mark brainliest.

Answer:

x + 2

#CARRYONLEARNING #STUDYWELL

Choose the correct domain and range for the graph.
Ty

Answers

Answer:

The answer is C.

Step-by-step explanation:

The domain is the x axis which goes infinitely both ways left and right. The range is the y axis and it starts at -3 and continues downwards infinitely.

Write the equation for each line : L,M,N,P

Answers

Answer: what lines

Step-by-step explanation:

Lamp ggggkgkgkgkgkekrcncjdickdke

Find the length of side a.
O A. 2
O B. 3
O c. 9
OD. 134
SUBMIT

Answers

Answer:

Answer B is correct.

Step-by-step explanation:

a² + b² = c² |-b²

a² = c² - b²

a² = 5² - 4²

a² = 25 - 16

a² = 9

a = 3

(7i²– 5i + 12) – (3i²+ 6i– 9)
THIS IS URGENT PLEASE​

Answers

THE ANSWER IS 17-11i
hope that helps

Someone HELP ME PLEASE

Answers

the answers is x≠ℝ I can show you the longer way if you want

1 point
1) Which of the following represents the DISCRIMINANT of the quadratic
formula?
A) -4ac
B) (b^2 - 4ac) (square root of b^2 - 4ac)
C) b^2 - 4ac
D) -

Answers

Answer:

option c

Step-by-step explanation:

b²-4ac is the discriminant

The price paid for a $83.50 chair with an 8% sales tax.​

Answers

Answer:

90.18 is the final price.

Step-by-step explanation:

Answer:74.50

Step-by-step explanation:

Which number sentence is true?
§ > }
Done →

Answers

The 3rd one that says 2/3 < 6/5

Remy bought a bottle of water with a volume of 0.56 L. After Remy drank some of the water there was 0.17 L left. How much water did Remy drink?

Answers

Answer:

0.73 L

Step-by-step explanation:

A recipe for 10 servings of raspberry sorbet calls for 2 cups of water, 1ż cups of granulated sugar, and 4 cups of
frozen raspberries, thawed. How many gallons of water would the recipe call for if a school made 320 servings for
students to eat at lunch?
O 4 gallons
O 8 gallons
O 40 gallons
O 80 gallons
its 4 gallons.

Answers

Answer:

[tex]\huge\boxed{\sf 320\ servings = 4\ gallons}[/tex]

Step-by-step explanation:

1 gallon = 16 cups (STANDARD)

For 10 servings:

10 servings = 2 cups of water

10 servings = 2 / 16 gallons

10 servings = 0.125 gallons

For 320 servings:

10 servings = 0.125 gallons

Multiply both sides by 32

10 * 32 servings = 0.125 * 32 gallons

320 servings = 4 gallons

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

Answer: The answer is 4 gallons.

Step-by-step explanation: A recipe for 10 servings of raspberry sorbet calls for 2 cups of water, 1/1.2 cups of granulated sugar, and 4 cups of frozen raspberries. So the Answer is 4 gallons

Sorry but someone got ride of it so i hade to add it again please mark brainliest :)

the dots are in the middle not on the bottom
4) What is the correct exponential form for the expression below? *
4.4.4

Answers

Answer:

option 3: 4^3

Step-by-step explanation:

four is being multiplied 3 times

Answer:

4^3 (option 3)

Step-by-step explanation:

4 x 4 x 4

4 is the number that is being multiplied

3 is the amount of times it is being multiplied

4^3

How do you like this bakugou drawing I did?​

Answers

Answer:

It’s really good! Keep up the good work!

Step-by-step explanation:

The drawing is awesome

The ratio of three numbers is 4:5:3. The sum of the numbers is 72. What is the smallest value in the ratio of 3 numbers? What is the largest number?

i need help (,:

Answers

Answer:

Smallest number is 18. Largest number is 30.

Step-by-step explanation:

a:b:c = 4:5:3

∃x such that a = 4x, b = 5x, c = 3x

"sum of the numbers is 72"

a+b+c = 4x+5x+3x = 72

x = 6

a = 4x = 24

b = 5x = 30

c = 3x = 18

A $300 suit is marked down by 30%. Find the sale
Price?
Please help me hurry

Answers

Answer:

$90 mark brainliest please

Step-by-step explanation:

300 times 0.3 equals 90

Answer:

90

Step-by-step explanation:

it is 90 trust did the work

Te retamos a resolver en tu cuaderno los siguientes ejercicios y preguntas.

1.Nuestro país tiene el número más grande de especies por unidad de área

en el planeta. La fauna es muy variada especialmente en las selvas

amazónicas, donde hay gran cantidad de especies únicas en el mundo.

Cuenta con más de 1 800 especiesdeaves.Escribealmenos6especies

de animales que hay en nuestro país.

2.El oso perezoso tarda aproximadamente 0,5 minutos enmoverunaextremidad

yrecorre0,25metrospor minuto. Es bastante miope, oye poco y su olfato

apenas le sirve para diferenciar las plantas de las que se alimenta. ¿Qué

distancia alcanza a recorrer el oso perezoso durante 5 minutos? Averigua el

peso aproximado de un oso perezoso.

3.Una familia ha consumido en un día de verano dos botellasdelitroymediode

agua,4botellas de1/3de litro de jugo, 5 limonadas de ¼ de litro. ¿Cuántos

litrosdelíquidohabebido?Expresaelresultadocon un númeromixto.

4.Resulta sorprendente conocer la cantidad de tiempo que necesitan

dormir algunos animales durante el día. Con los siguientes datos de la tabla

respondelas siguientes preguntas.ANIMAL PARTE DEL DÍA (24 horas )

QUE DEDICAN DORMIR.

Oso perezoso 0,8

Oveja 0,125

Gorila 0,5

Gato 0,625

armadillo 0,75

Responde argumentando tu respuesta, anota en tu cuaderno:

¿Cuánto tiempo en horas y minutos duerme el oso perezoso en un

día?

¿Podemos afirmar que los animales más pequeños necesitan

menos tiempo de descanso?ANIMAL PARTE DEL DÍA (24 horas )

QUE DEDICAN DORMIR.

Oso perezoso 0,8

Oveja 0,125

Gorila 0,5

Gato 0,625

armadillo 0,75

Responde argumentando tu respuesta, anota en tu cuaderno:

¿Cuánto tiempo en horas y minutos duerme el oso perezoso en un

día?

¿Podemos afirmar que los animales más pequeños necesitan

menos tiempo de descanso?​

Answers

Answer1

Step-by-step explanation:

HELLPPPPPPPP A Blue Ray Player costs $150 and each disc costs $15.50.
The sales tax rate is 7.5%. The expression 0.075(150 + 15.50s) can be used to determine the
amount of sales tax due on the entire purchase.
Expand the expression.

Answers

Answer:

150 + 15.50 x 0.075

Step-by-step explanation:

Which of the following are expressions? Check all that apply.



Group of answer choices

3 + x

twelve is three more than nine

the difference of x and 8

2y

Answers

Answer:

3 + x

the difference of x and 8

Step-by-step explanation:

brailiest?

GUYS YOU NEED TO SEE THE NEWS THERES A BIG THING ATTACKING NY RN

Answers

Answer:

what????????????????

A bakery sells chocolate cupcakes and mocha cupcakes. One day it sold 138 chocolate and 162 mocha. What percent of the cupcakes sold that day were chocolate?

Answers

Answer:

88% of the cupcakes sold were chocolate :)

Anyone can help me with this??

Answers

Answer:

Its 10

Step-by-step explanation:

20/15= 4/3

Answer:

2 is the answer x=5 then you can simply solve

−39 = −0.6k
what does k equal

Answers

Answer: k=65

Step-by-step explanation:

Answer:

k=65

Step-by-step explanation:

You would need to divide -0.6 on both sides to isolate k

-39 = -0.6k     Original equation

-39÷ -0.6 = -0.6k÷-0.6    Isolating the variable

-39÷-0.6 = k     SImplification

65 = k              The answer!!!

When multiplying or dividing 2 negative numbers, remember that the result will be positive

I hope this helps!!!

The price of televisions has been decreasing. Last year, the price of a 52-inch television was $800. This year, the price has declined by 15%. How much was the price of the television this year?

Answers

$120 is 15% of $800 =$680

what is the slope? (IXL)

Answers

Answer:

2/4 but simplified 1/2

Step-by-step explanation:

rise over run.

Any one know how to do this ? 1 through 4

Answers

Answer:

1. U = 54   T = 72

2. M = 76   N = 76

3. F = 134   EF = 18

4. P = 60   Q = 60   R = 60

Step-by-step explanation:

1. the triangle given is an isosceles triangle. this means that the two angles that aren't connected with a congruent side, have the same measures. These angles are also called base angles

in this case, those two angles are S and U

since we know S is 54, U will also be 54

to find the third angle, add all your know angles, then subtract it from 180. We do this because all the angles in a triangle will always add up to 180.

180 - (54 + 54) = 72

U = 54

T = 72

2. In this case M and N are your base angles. We know that the base angles are equal, and that when you add them with L, you should get 180.

we can start by subtracting L from 180 to find the sum of M and N

180 - 28 = 152

now divide this by 2 to find the individual angles:

152 / 2 = 76

so: M = 76 and N = 76

3. For this one, we can do something similar to what we did in question 1 to find F. Just add the base angle, and subtract it from 180 to find the third angle:

180 - (23 + 23) = 134

In isosceles triangles, there are two lines that are congruent, these two lines are the lines that meet at the abnormal angle. In this case, GF and EF are those lines.

so if GF is 18, then EF is also 18

4. This triangle is an equilateral triangle. This means that all sides and angles are congruent. to find the angles, all we have to do is divide 180 by 3, since there are 3 equal angles.

180 / 3 = 60

every angle is 60

Anyone got the answers for b and c

Answers

For letter b:

First times 5 on both sides to get rid of the denominator of 5

5 * y
— = 4 * 5
5

Then the answer is

y = 20


For letter c:

First move constants on one side, variables on the other

2g = 17 - 8

Then collect like terms:

2g = 9

Then divide both sides which would equal:

g = 9/2


Plzzz help i need help quick the right answer gets a thanks, 5 stars, and a Brainly!

Answers

Answer:

The absoloute value is 2

Step-by-step explanation:

absoloute value is the places away from 0. -2 is 2 spots away from 0.

Answer:

2

Step-by-step explanation:

The absolute value is the place away from 0. -2 is 2 spots away from 0.

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