Are all of these correct?

Are All Of These Correct?

Answers

Answer 1

Answer:

all the answers are correct

Step-by-step explanation:

on number eight in the work on the 9x it should say -9x but you fixed it later so the answer is right but the work at that point isnt

Answer 2
1. Is correct
2. For this one I got -2+8k(I think that’s the same answer just worded differently
3. Correct!!
4. I got -2-10a(also believe that’s the same)
5. Correct
6. Correct
7. I got 5n+24
8. Correct!!!
GOOD JOB GIRL!!!

Related Questions

Pleassse help Lily records the change in her dog's weight over 4
weeks. What is the dog's average weekly weight
change?

Answers

Answer:

(D)

Step-by-step explanation:

( [tex]-\frac{3}{16}[/tex] + [tex]\frac{1}{16}[/tex] - [tex]\frac{5}{16}[/tex] - [tex]\frac{1}{16}[/tex] ) ÷ 4 = [tex]\frac{-3+1-5-1}{16}[/tex] × [tex]\frac{1}{4}[/tex] = [tex]-\frac{1}{8}[/tex] pound

A cake is removed from an oven. The temperature, in degrees Fahrenheit, of the cake after t minutes can be modeled by the equation, f(x)=70+140e^-0.024t.

What is the temperature of the cake at the moment it is removed from the oven and about how long will it take for the cake to reach a temperature of 80oF ? Round your answer to the nearest whole minute.

Thank you (:

Answers

Answer:

210°F

110 minutes

Step-by-step explanation:

Given that :

Temperature of cake t minutes after being removed from oven :

f(x)=70+140e^-0.024t

Temperature T the timee it is removed ;

At this point, the time t = 0

f(t)=70+140e^-0.024t

f(x)=70+140e^-0.024(0)

= 70 + 140(1)

= 210°F

how long will it take for the cake to reach a temperature of 80oF

80 = 70+140e^-0.024t

80 - 70 = 140*e^-0.024t

10/140 = e^-0.024t

0.0714285 = e^-0.024t

In(0.0714285) = - 0.024t

−2.639057 = - 0.024t

t = 2.639057 / 0.024

t = 109.9607

t = 110 minutes

plz help asap almost done ​

Answers

Answer:

5(-2.1)-4(-8.9)= 25.1

Step-by-step explanation:

lol

y=100-(1.25)
is it exponential growth or decay ?
what’s the initial value ?
what is the rate of growth or rate of decay ?

Answers

Answer:

You should probably double check the problem. The equation you have is just 100-1.25

Here are recipes for two different banana cakes. Information for the first recipe is shown in the table. 1st Recipe: y = 1.5x 2nd Recipe: y = 7/4x If you used 4 cups of sugar, how much flour does each recipe need?​

Answers

Answer:

d. First: 6 cups, Second: 7 cups

Step-by-step explanation:

Answer choices:If you used 4 cups of sugar, how much flour does each recipe need? a. First: 2 cups, Second: 8 cups b. First: 7 cups, second: 6 cups c. First: 4 cups, second: 2 cups d. First: 6 cups, Second: 7 cupsSolution

Using the formulas to find the amount of flour needed:

1. y = 1.5x = 1.5*4 = 6 cups2. y = 7/4x = 7/4*4 = 7 cups

Correct choice is d.

in a school, the number of boys is 9 more than thrice a number of girls. if the total role of class is 60. what is the total role of girls ​.​

Answers

B = 3g + 9
G + b =60
G + 3g + g
5g = 60
G = 12

If z = 13 - 71, what is the value of z?
BE
O 6
O 2/30
218
O 20

Answers

Answer:

z=-58 bc 13-71= -58

Step-by-step explanation:

z=13-71
z=13+-71
z=(13+-71)
Combine like terms
z=-58


Im so confused pls help

Answers

Answer:

2,3

Step-by-step explanation:

Let the first number be x

Hence, its next consecutive integer = x+1

[tex]Reciprocal\ of\ the\ first\ integer\ = \frac{1}{x} \\Reciprocal\ of\ the\ second\ integer\ = \frac{1}{x+1} \\\\As\ we\ are\ given\ that\ their\ sums\ are\ \frac{5}{6} ,\\\frac{1}{x} + \frac{1}{x+1} = \frac{5}{6} \\\\Through\ butterfly\ method\ of\ resolving\ the\ denominators\,\\\frac{(x+1)+x}{x(x+1)} = \frac{5}{6} \\\frac{2x+1}{x^2+x} =\frac{5}{6} \\6(2x+1)=5(x^2+x)\\12x+6=5x^2+5x\\\\Now, lets\ bring\ all\ the\ terms\ in\ the\ LHS\ to\ RHS.\\\\Hence,\\0=5x^2+5x-12x-6\\5x^2-7x-6=0\\[/tex]

By Factorizing the expression on the LHS. we get it equal to :-

[tex]5x^2-7x-6=0\\5x^2-10x+3x-6=0\\5x(x-2) + 3(x-2) = 0\\(5x+3)(x-2)=0[/tex]

Hence, we get two solutions for x, x=2, x= -3/5

As x is an integer, x=2 is the most suitable solution in this case.

Hence,

The numbers are 2,3

two plans offer 500 free minutes per month

Answers

Answer:

ok bett this is good I guess lol

A store sells ice cream with assorted toppings. They charge $3.00 for an ice cream, plus 50 cents per ounce of toppings. If Elena’s ice cream cost $1.50 more than Jada’s ice cream, how much more did Elena’s toppings weigh?

Answers

Answer:

3 ounces more

Step-by-step explanation:

50*3 =1.50

3.00+1.50= 4.50

The sides of a square have length s
Write a formula for the perimeter

P=

Answers

Answer: p=side+side+side+side

Step-by-step explanation:The formula for the perimeter of a rectangle is often written as P = 2l + 2w, where l is the length of the rectangle and w is the width of the rectangle. The area of a two-dimensional figure describes the amount of surface the shape covers

hope that this helps you:)

PLEASE HELPPPP 15 POINTS! A man's shoe size is approximately three times his foot length in inches, minus twenty-two. What would be the equation that could represent his shoe size, y, in terms of inches, x?
A. y=3x-22
B. y=22x-3
C. x=3y-22
D. 3x+22

Answers

Answer:

I am sorry

Step-by-step explanation:

I am new

Answer:

a

Step-by-step explanation:

im 100% sure

Plz help me with these question ( just making sure So I don’t get them wrong! :)

Answers

1. x intercept is (10,0)
y intercept is (0,6)

2. x intercept is (4,0)
y intercept is (0, -1)

3. x intercept is ( 4,0)
y intercept is (0,8)

hope this helps :) !

3. In the figure, m/_ 2 = 92, and m/_12 = 74. Find the measure of each angle. Tell which postulate(s) or theorem(s) you used.

/_13

a. 106, vertical angles
b. 74, alternate interior angles
c. 106, supplementary angles
d. 74, consecutive interior angles​

Answers

Answer:

C

Step-by-step explanation:

Find the points of Intersection of these graphs
y = x^2 and y = x +6
I need the explanation and how the formula is thanks Ill give 35 points

Answers

Answer:

the line crosses the parabola at (-2,4) and (3,9)

Step-by-step explanation:

y=x^2

y=x+6

set them equal to each other

x^2=x+6, now set it equal to zero

x^2-x-6=0, now find the root

(x+2)(x-3)=0, the x=-2, and x=3; now substitute into any of the equation to find the points where graphs intercept

at x= -2, y=(-2)^2=4, so one point is (-2,4)

at x=3, y=(3)^2=9, so other point is (3,9)

the line crosses the parabola at (-2,4) and (3,9)

HELP PLEASE! WILL GIVE BRAINLESIT ​

Answers

Answer: Hypotheses ?

Step-by-step explanation:

show work / explain it ​

Answers

Answer:

-4

Step-by-step explanation:

look at the screenshot

What is the slope of 3/5

Answers

Step-by-step explanation:

Since x=35 x = 3 5 is a vertical line, the slope is undefined.

The answer to your question is m = 0

z ÷ 12 = 9 (PLEASE ANSWER QUICK)

Answers

Answer:

z = 108

Step-by-step explanation:

9 x 12 = 108

Answer:

I got youuuuuuu, its 108

A student spends $48 on school supplies at a store where the sales tax is 7%. What is the total cost of the supplies?

Answers

51.36

7% of 48= 3.36

48 plus 3.36=51.36

:))

Answer:

The answer is 51.36

Step-by-step explanation:

.07×48=3.36

3.36+48=51.36

if you had x nickels, how much money would you have?

Answers

Answer:

x(5) = number of cents

Step-by-step explanation:

If x = the amount of nickels you have, since 1 nickel is 5 cents, you multiply the number of nickels times 5 to get the number of cents. x(5). Examples: 5 Nickels= 5(5) = 25 cents. 7 Nickels = 7(5) = 35. Just plug in the number of nickles for x and solve. Hope this helped! If it did, please give me brainliest. Thanks!

A castle has 34 small rooms and 47 large rooms. Each room has 32 candles in it. Which is the best estimate for the number of candles in the​ castle?

Answers

Answer:

2600

Step-by-step explanation:

Answer:

2600 candles

Step-by-step explanation:

34 x 32 = 1088

47 x 32 = 1504

1088 + 1504 = 2592

2592 rounded is 2600

Here is a really fun assignment which my friend gave me:
Use the numbers below to get 6. You can use any operation, but you can't use ANY other numbers.
2,2,2 =
3,3,3 =
4,4,4 =
5,5,5 =
6,6,6 =
7,7,7 =
8,8,8 =
9,9,9 =

Answers

Answer:

2x2 = 4 + 2 = 6.

Step-by-step explanation:

plz help only 3 more

Answers

Answer:

Stefan originally spent $120 because we can say 180 dollars(164+16), than they want 150 percent. so 180 x 1.5 =120, but he sold it for 180 dollars so he made an additonal 60 dollars. Hoped that helped.

I need some help on this question also answer choices for the boxes are on another question I asked right after this​

Answers

Step-by-step explanation:

actually I don't know that. maybe you should take the pitagora theory. maybe...

mr. and Mrs . Coronado took a bus to belmopan . they left at 7:15 a.m. and arrived at 8:00 a.m . How long was the trip show ur working out and thank u once again ​

Answers

Answer:

The trip was 45 minutes

Step-by-step explanation:

you take 60 minutes which is an hour and subtract 15 to get 45 minutes


The diagram shows a cuboid.
4 cm
5 cm
9 cm
What is the surface area of the cuboid?​

Answers

Answer:

69cm ^2

Step-by-step explanation:

2(x-7)-5x=13
how do i solve this

Answers

Answer:

x=-9

Step-by-step explanation:

2(x-7)-5x=13

Remove the parenthesis

2x-14-5x=13

Collect like terms

-3x - 14 = 13

Move the constant to the right

-3x=13+14

Calculate

-3x=27

Divide on both sides to get the answer

Someone help with both please

Answers

Answer:

linear increasing

Step-by-step explanation:

and b for the second one

A student cycles a distance of 63 km in less
than 3 hours. What is the average speed?​

Answers

Answer:

About About 21 km/h

Step-by-step explanation: If they travel 63 km in 3 hours then all it is is just 63 divided by 3 or 63/3.

The average speed for the cycle will be 21 km per hour.

What is an average speed?

Speed is defined as the ratio of the time distance traveled by the body to the time taken by the body to cover the distance. Speed is the ratio of the distance traveled by time. The unit of speed in miles per hour.

The average speed is defined as the ratio of the total distance traveled and the total time taken by the object.

Given that A student cycles a distance of 63 km in less than 3 hours. The average speed is calculated as:-

Average speed = Distance / time

Average  speed  = 63 / 3

Average  speed = 21 km / hr

To know more about Speed follow

brainly.com/question/6504879

#SPJ2

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