help ??? on edu math review

Help ??? On Edu Math Review

Answers

Answer 1

Answer:

It must be C.

Step-by-step explanation:

x² - 9 = 16

=> 16 + 9 = x²

=> 25 = x²

=> x = 5

Referring to the options, C is the only one that is accurate to me. Hoped this helped.

Answer 2
The answer for that one is B

Related Questions

Due Tomorrow: Answer question 20 using steps

Answers

Answer:

angle CAB = 37

segment AC = 4.0

segment BC = 3.0

Step-by-step explanation:

angle CAB is complementary with angle ABC. 90-53=37. This is a right triangle, meaning we can use SohCohToa to find side lengths. AC = 5 * sin(53) = 4.0, and BC = 5 * cos(53) = 3.0.

PLEASE HELPP!!!!!!!!!!!

Answers

Answer:

Surface area = (Perimeter of the base × Length of the prism) + (2 × Base Area) = (S1 + S2+ S3)L + bh;

Step-by-step explanation:

(24cm + 14cm + 25cm) 10 + 2 × 14

hope this help pls mark me Branliest

If P(t) is the size of a population at time t, which of the following differential equations describes linear growth in the size of the population?

dPdt=200
Answer A: d cap p over d t is equal to 200
A

dPdt=200t
Answer B: d cap p over d t is equal to 200 t
B

dPdt=100t2
Answer C: d cap p over d t is equal to 100 t squared
C

dPdt=200P
Answer D: d cap p over d t is equal to 200 cap p
D

dPdt=100P2

Answers

Answer:

A. dP/dt = 200

The degree of the variable must be one for linear growth. Then the correct option is B.

What is differentiation?

The rate of change of a function with respect to the variable is called differentiation. It can be increasing or decreasing.

If P(t) is the size of a population at time t.

The differential equations have a linear growth in the size of the population. That means the degree of the variable must be one. And the equation of the population will be quadratic. That is given as

[tex]\rm \dfrac{dP}{dt} = 200t[/tex]

In this equation, the degree of the time (t) is one.

Thus, the correct option is B.

More about the differentiation link is given below.

https://brainly.com/question/24062595

The question is in the picture.

Answers

Answer:

[tex]x^{3r-18}[/tex]

Answer:

[tex]x^{3r-18}[/tex]

Step-by-step explanation:

[tex]\frac{1}{x^{18-2r} } x^{r} =\frac{x^{r} }{x^{18-2r} }[/tex]

[tex]=x^{r-(18-2r)} =x^{r-18+2r}[/tex]

[tex]=x^{3r-18}[/tex]

Hope this helps

at a school that are 423 students and teachers altogether if the amount of students is made up of 212 girls and 163 boys,calculate the number of teachers there are at that school​

Answers

Answer:

48

Step-by-step explanation:

212 + 163 = 375    <---- These are the students

423 - 375 = 48     <----- These are the teachers

Estimate 5 x 212 and get the answer

Answers

5x212= 1,060 . Estimate would probably be like 1050?

Answer: 1,055 or 1,059

Step-by-step explanation: (5)(212)                                                                       1060                                                                                                                          If I were to estimate (5)(212) without solving the answer would be in the 1,050+ range. But if I solve it without estimating the answer is 1,060.

calculate the distance of mars to the sun

Answers

Mars is 1.5 astronomical units away from the Sun, or 143 000 000 miles

Answer:

[tex]r=2.28*10^8km[/tex]

Step-by-step explanation:

This assumes you were given the mass of mars to be [tex]6.39*10^2^3kg[/tex] the mass of the sun to be [tex]1.99*10^3^0kg[/tex] and the gravitational force between the two to be [tex]3.72*10^3^5N[/tex].

I used the formula: (G is the gravitational constant [tex]6.67*10^-^1^1[/tex])

[tex]F=G\frac{m_1m_2}{r}[/tex]

and solved for r

[tex]3.72*10^3^5=6.67*10^-^1^1\frac{6.39*10^2^3(1.99*10^3^0)}{r}[/tex]

[tex]r=\frac{8.48*10^4^3}{3.72*10^3^5}[/tex]

[tex]r=2.28*10^8km[/tex]

What Value of N makes the equation true?

Answers

-1/5n + 7 = 2

-1/5n = 2-7

-1/5n = -5

n = -5 * (-5/1)

n = 25

You can plug the value in for “n” in the original equation to double check your answer.

A plumber charges a base fee of $60, and then each hour of work costs $15. Yesterday Joe hired the plumber to fix his sink, at a total cost of $240. How many hours did the plumber work?

Answers

The answers or your question is 12

C – 4 = 10 I need help with this question

Answers

Answer:

The answer is 14

Step-by-step explanation:

c - 4 = 10

c = 10 + 4

c = 14

Answer: c = 14

Step-by-step explanation:

14 - 4 = 10

What is the slope of the line x=6

Answers

Answer:

undefined

Step-by-step explanation:

Vertical lines never have a defined slope as you can never divide a number by zero

The equation of a line in standard form is:

y

=

m

x

+

b

Where

m

is our slope

b

is our y-intercept

In our case we are only given

x

=

6

x

=

6

is a vertical line therefore the slope is undefined.

need help with this please!! ​

Answers

Answer:

x = -4.

y = 0.

Step-by-step explanation:

Each element is multiplied by -2, so

-2 * x = 8

x = -4.

-2*y = 0

y = 0.

Simplify these expressions
a) 5 x x
b) 6 x x xy
c) 2 x x 3 y

Answers

a) 5 x2

b) 6 x2 xy

c) 5 x2 y

how can you tell if data is continuous or discrete

Answers

For me, it helps to ask this question: Does it make sense to apply the midpoint? If it doesn't make sense, then the data is discrete. Otherwise, the data is continuous.

Here's an example:

Let's say we are counting the number of people buying a movie ticket. So the numbers we care about are positive whole numbers 1,2,3,... It doesn't make sense to apply the midpoint to the values 1 and 2 to get 1.5; you can't sell half a ticket. Therefore the variable "number of movie tickets sold" is a discrete variable. There are gaps in the data.

On the other hand, if we were measuring the weight of various coins, then this variable is continuous. It's possible to have any positive number decimal number weight (eg: 2.275 grams perhaps). It makes sense to apply the midpoint to any two weights and get some other weight. We don't have to worry about sticking to whole numbers only. Unlike before, there aren't any gaps and we consider this number set to be dense.

One way you could remember the two is to keep this in mind: If you count it, then it's likely discrete. If you can measure it, then it's continuous.

There are probably exceptions to that rule, but for the most part it holds up I think.

Help help math math math please help help help

Answers

Yes they are congruent

Use the following function rule to find f(3) f(x)=3(4)^x+2

Answers

Answer:

3f×16=36

Step-by-step explanation:

f(x)=2x×fx

(substitute

=3f×16

=36f

Five students share the writing of a term
paper evenly. If each person writes more
than six pages, how long is the paper?

Answers

Answer:

Over 30

Step-by-step explanation:

There is no definite answer if you don't know how many pages each person. All you have to do is multiply 5 by 6

here's my question. ​

Answers

Answer:

30 Chocolates

Step-by-step explanation:

The box was new and therefore full, so it had 5/5 of chocolates left.

When Bob ate 18, 2/5 were left, so he must have eaten 5/5 - 2/5 or 3/5 of the chocolates:

5/5 - 2/5 = 3/5

You know that 3/5 of the chocolates are 18, as he ate 18 chocolates. Divide 18 by 3 to get 6:

18 / 3 = 6

This is 1/5 of the chocolates. Multiply this by 5 to get 30:

6 * 5 = 30

This is 5/5 of the chocolates and therefore the total is 30 chocolates.

Find the area of the square below when it is increased by a scale factor of 3

Answers

Answer:

To find the area of a square with the scale factor of 3, you multiply the side lengths by 3, so (3*L)*(3*W)= Area of your square.

Step-by-step explanation: I hope that this helps, ask questions in the comments below.(if you have any).

The area of the imagined square will be 90 units² by increased with a scale factor of 3.

What is the scale factor?

You must specify the extent of the shape's enlargement when describing one.

The scale factor is the ratio of two dimensions such that one figure is large and another is small.

As per the imagined square with dimensions of 10 units.

Applied the scale factor 3 in the length of the square(since it has only one dimension).

10 x 3 = 30 units.

Thus, each side of the square will be 30 units in length.

Hence "By adding a scale factor of 3, the envisioned square's area will expand to 90 units²".

To learn more about scale factors,

brainly.com/question/22312172

#SPJ5

What is the equation of the line shown in this graph?

Answers

Answer:

y = 1

Step-by-step explanation:

What is the proper order of function of 2+5(8-5)

Answers

Answer:

17

Step-by-step explanation:

2+5×3

2+15

17

Explain please :)

A golfer is hitting a ball up a hill. The height of the hill is represented by the function
y = 0.125x. The height of the ball is measured by the equation
y = –16x^2+56x. How much higher will the ball be when it lands than when it was initially hit?

Answers

Answer:

3.49 ft

Step-by-step explanation:

y = 0.125x

y = –16x^2 + 56x

Set the equations equal since the height of the hill

and the height of the ball must be the same

–16x^2 + 56x = 0.125x

Subtract 0.125x from both sides

–16x^2 + 55.875x = 0

Factor out x

x(–16x + 55.875) = 0

From the zero product rule

x = 0

and

–16x + 55.875 = 0

–16x = –55.875

Divide both sides by –16

x = 3.4921875

Diiference in height

3.4921875 - 0 = 3.4921875

3.49 ft

pls help (picture) *30 points*

Answers

Answer:

perimeter = 36

Step-by-step explanation:

Each diagonal side is the hypotenuse of a right triangle with legs of lengths 6 and 8.

c² = a² + b²

c² = 6² + 8²

c² = 36 + 64

c² = 100

c = √100

c = 10

Each horizontal side measures 8.

perimeter = 8 + 8 + 10 + 10

perimeter = 36

bueno round in the number three hundred ninety eight thousand six hundred twenty two wat is the answer​

Answers

Answer:

Step-by-step explanation:

Round to what precision?

398622 nearest whole number

398620 nearest 10

398600 nearest 100

399000 nearest 1000

400000 nearest 10 000 and 100 000

Which equation represents a line passing through the point (8, 33) with a slope of 3?
A. y = 3x – 15
C. y = 3x – 8
B. y = 3x + 33
D. y = 3x + 9

Answers

Answer:

Is ka answers D ha.........

Answer:

The answer is D.

Step-by-step explanation:

(8 ,33) = ([tex]x_{1} , y_{1} )[/tex]

m = 3

To find the equation, use the formula:

y - [tex]y_{1}[/tex] = m(x - [tex]x_{1}[/tex])

Put the values in the equation

y - 33 = 3(x - 8)

y - 33 = 3x - 24

Now to get only the y, put the [tex]y_{1}[/tex]

y - 33 = 3x - 24

    33           33

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

   y    =  3x + 9

What is the solution of the linear -quadratic system of equations?
{y=x^2+5x-3
{y-x=2​

Answers

Answer:

Step-by-step explanation:

the answer is that it make no sense bro

Susie has read 52 pages of an 80- page book. What is the percentage of the pages that susie has not read?

Answers

Answer:

35%

Step-by-step explanation:

52/80=0.65

0.65x100=65

65% is the percent that she has read.

100%-65%= 35%

She has not read 35% of the pages.

Answer:

She hasn't read 35% of the book

Step-by-step explanation:

1st way: Since 80 pages represent 100%

52 pages represent 100 * 52 / 80 = 65% pages read

100 - 65 = 35 pages page not read.

2nd way: 80 - 52 = 28 pages not read

28 pages represent 100 * 28 / 80 = 35% pages not read

What is the slope of a line passing through the points (2, 5) and (0, −4)?

Answers

Answer:

9/2

Step-by-step explanation:

m=∆y/∆x

m= (5+4)/(2—0)

m=9/2

What is the equation of this graphed line?



Enter your answer in slope-intercept form

Answers

Answer:

Step-by-step explanation:

slope m = Δy/Δx = (6 - (-6)) / (2 - (-4)) = 12/6 = 2

b is the y intercept when x = 0.

b = 2

y = 2x + 2

A car rental agency charges $150 per week plus $0.20 per mile to rent a car. How many miles can
you
travel in one week for $290?
A) 208
B) 1450 miles
C) 700 miles
D) 675 miles

Answers

C). 700 miles
290-150=140
140 divided by .20 is 700 miles
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