Please help 4+(-10)-(-9)

Answers

Answer 1

Answer:

-15

Step-by-step explanation:

-10+-9=-19+4=-15

Answer 2
The answer is 3 if you need me to tell you how (text back)

Related Questions

Rosa is currently x years old. In 28 years, Rosa will be 3 times the age she is now. Which equation can be used to find Rosa's age?

Answers

Answer:

multiple 28 and 3 u will get the answer

Step-by-step explanation:

I think It will help you

y varies inversely with x. If y = 5 when x = 60, find y when x = 150

Answers

Answer:

y =2 when x = 150

Step-by-step explanation:

Inverse variation is

xy = k

5*60 = k

300 = k

xy = 300

150y = 300

Divide by 150

150y/150 = 300/150

y = 2

How do you do this question?

Answers

Step-by-step explanation:

Use the first fundamental theorem of calculus.

∫₆¹⁰ f'(x) dx = f(10) − f(6) = 8 − 8 = 0

How many days are in a week ?the answer is measured in the

Answers

Answer:

7 days are in a week. 5 week days, 2 days for the weekend hope this helps.

sita purchased 100 pencils of rs600. when she sold all the pencils she lost 20%. find the selling price of each pencils.​

Answers

Answer:

rs480

Step-by-step explanation:

100%=r600      100%-20%=80%

80%=x

80 x 600 =48000

[tex]\frac{48000}{100}[/tex]=480

Helppppppppppppp0ppppppp

Answers

The value of M is 3/4 of J


2. A stock price rose 2.2 points in
Week 1. The stock price fell 5.4
points in Week 2. Write and solve
an equation to represent the total
price change in stock.

Answers

Answer: the total  price change in stock is fall of 3.2 points or -3.2 points.

Step-by-step explanation:

In integers , we use positive integers to show rise in amount whereas we use negative integers to show fall .

Given: A stock price rose 2.2 points in  Week 1.

i.e. +2.2 points rise.

The stock price fell 5.4  points in Week 2.

i.e. fall of -5.4.   (Much greater, than it rose)

The equation to represent the total  price change in stock would be

Total  price change = price rose in  Week 1 +  price fell  in Week 2.

= [+2.2 + (-5.4)] points

= 2.2 - 5.4 points   [ (+)(-) = (-)]

= -3.2 points

Hence, the total  price change in stock is fall of 3.2 points.

52=4z
HELP PLS ILL MARK BRAINLIEST

Answers

Answer:

Z- 13

Step-by-step explanation:

Divide 52 by 4

[tex]52 \div 4 =13[/tex]

A normal population has the mean of 10 and the variance of 25 . A random sample of size n-28 is selected.
(a) Find the standard deviation of the sample mean. Round your answer to two decimal places (e.g. 98.76)
(b) How large must the sample be if you want to halve the standard deviation of the sample mean?

Answers

Answer:

Step-by-step explanation:

Given that:

population mean = 10

variance [tex]\sigma^2[/tex] = 25  ; [tex]\sigma[/tex] =[tex]\sqrt{ 25}[/tex] = 5

sample size n = 28

The standard deviation of the sample mean:

= [tex]{\dfrac{5}{\sqrt{28}}[/tex]

= 0.95

To halve the standard deviation of the sample mean, the size of how large the sample will be can be computed as follows:

[tex]\dfrac{sd_1}{sd_2} = \dfrac{\dfrac{\sigma}{\sqrt{n}} }{\dfrac{\sigma}{\sqrt{n}} }[/tex]

[tex]\implies \dfrac{\dfrac{5}{\sqrt{28}} }{\dfrac{5}{\sqrt{28}} }[/tex]

[tex]= \dfrac{5}{\sqrt{28}} \times \dfrac{\sqrt{28}}{5}[/tex]

= 2

n = 4 × 28

n = 112

The standard deviation is 0.95 and if the standard deviation is halved then the sample mean is 112.

What is a standard deviation?

It is the measure of the dispersion of statistical data. Dispersion is the extent to which the value is in a variation.

A normal population has a mean of 10 and a variance of 25.

A random sample of sizes n-28 is selected.

A.  The standard deviation will be

[tex]\sigma = \dfrac{\sqrt{Var(x)}}{n} \\\\\sigma = \dfrac{\sqrt{25}}{\sqrt{28}} \\\\\sigma = 0.95[/tex]

B.  The sample be if you want to halve the standard deviation of the sample mean

[tex]\rm \dfrac{SD_1}{SD_2} = 2 = \dfrac{\sqrt{n}}{\sqrt{28}}\\\\n = 4*28 \\\\n= 112[/tex]

More about the standard deviation link is given below.

https://brainly.com/question/12402189

One-third of a number decreased by four

Answers

Answer: (X/3)*4

Step-by-step explanation:

(1/3)*x

decreased by 4: (1/3)*x-4

Simplify the expression. Write the answer with positive exponents only. Assume the variable represents a nonzero real number.

Answers

Answer:

[tex]\frac{1}{w^{29}}[/tex]

Step-by-step explanation:

The given expression is [tex]\frac{w^{-7}(w^{-9})^2}{w^4}[/tex].

Since, [tex]w^{-7}=\frac{1}{w^7}[/tex]

And [tex]w^{9}=\frac{1}{w^9}[/tex]

Expression will become,

[tex]\frac{w^{-7}(w^{-9})^2}{w^4}=\frac{\frac{1}{w^7}(\frac{1}{w^9})^2}{w^4}[/tex]

               [tex]=\frac{\frac{1}{w^7\times w^{18}}}{w^4}[/tex]

               [tex]=\frac{\frac{1}{w^{(7+18)}}}{w^4}[/tex]

               [tex]=\frac{1}{w^{25}}\times \frac{1}{w^4}[/tex]

               [tex]=\frac{1}{w^{25}\times w^4}[/tex]

               [tex]=\frac{1}{w^{29}}[/tex]

Therefore, Simplified form of the given expression will be [tex]\frac{1}{w^{29}}[/tex].

The sum of all of the exterior angles of an octagon is:

Answers

Answer:

the answer is 360 degrees

Step-by-step explanation:

Open the line segment translation application. Line segment AB is a translation of line segment CD 6 units down. Drag line segment CD and try to move it onto line segment AB. Are line segments AB and CD the same? What does this mean about how a line segment changes when you translate it?

Answers

Answer:

  Only the position changes with translation. Other measures, including slope and length, remain the same.

Step-by-step explanation:

Line segment CD can be placed directly on top of line segment AB. The translated segment has the same length and orientation as the original.

Answer:

Only the position changes with translation. Other measures, including slope and length, remain the same.

this should be your answer

If a woodchuck could chuck 2
pieces of wood every hour, how big is a beavers dam?

Answers

Answer:

How many hours?

Step-by-step explanation:

the answer to this is 2x

X is the number of hours and you multipy it by 2 wood

find the absolute value of -0.909?

Answers

no further can be done to that number

0.909 is the  absolute value of -0.909

What is Number system?

A number system is defined as a system of writing to express numbers.

The given number is a decimal number

-0.909

Minus zero point nine zero nine

We need to find the absolute value of -0.909

Absolute value of a Decimal is its numeric value without its sign

The absolute value or modulus of a real number x, denoted |x|, is the non-negative value of x without regard to its sign.

0.909 is the  absolute value of -0.909

Hence,  0.909 is the  absolute value of -0.909

To learn more on Number system click:

https://brainly.com/question/22046046

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This equation will be in standard form if you subtract 6x2 from
both sides, add 30 to both sides and subtract ex from both
sides.
6x2 + 2x - 30 = 4x2 +9x

A.True
B.False

Answers

The answer to it is true

Someone please help me ❤️

Answers

Answer:

week 5!

Step-by-step explanation:

Answer:

yes, week 55️⃣

Step-by-step explanation:

just see the little blue points

33 points!!! The line contains the point (8,2) and is parallel to a line with a slope of -2/3 The equation of the line is

Answers

Answer:

y=mx+b

y=-2/3x+2

Step-by-step explanation:

-2/3=slope

x= y coord.

Solve for m.
7
D= (m - 64)
2
==

Answers

=(D-64)2

We move all terms to the left:

-((D-64)2)=0

We calculate terms in parentheses: -((D-64)2), so:

(D-64)2

We multiply parentheses

2D-128

Back to the equation:

-(2D-128)

We get rid of parentheses

-2D+128=0

We move all terms containing D to the left, all other terms to the right

-2D=-128

D=-128/-2

D=+64

Solve for y. 6 x + 2y = z​

Answers

The answer to this question is 7

Answer:

[tex]y = \frac{z}{2} -3x[/tex]

Step-by-step explanation:

Isolate the variable, y. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

PEMDAS =

Parenthesis

Exponents & roots

Multiplication

Division

Addition

Subtraction

& is the order of operation.

First, subtract 6x from both sides:

6x (-6x)  + 2y = z (-6x)

2y = z - 6x

Next, divide 2 from both sides:

(2y)/2 = (z - 6x)/2

y = (z - 6x)/2

y = (z/2) - 3x

[tex]y = \frac{z}{2} -3x[/tex]  is your answer.

~

Which set of numbers could be the side lengths of a right triangle?
A. 3,4,6
B.4,5,7
C. 5, 12, 13
D. 7. 20, 21
E. 8, 15, 16

Answers

A 3,4,6 Oh my God its so very hard

Miles traveled, miles to go, fill in the “?”

Answers

Answer:

The blank is 170

Step-by-step explanation:

The ratio from miles traveled to miles to go is 1:-1

520-0=520

520-100=420

520-200=320

520-350=170

520-520=0

Name 3 rays in this geometric construction
E
A
D
B
Your answer

Answers

Do you have a picture or anything that you could show us?

The sum of all of the exterior angles of an octagon is:

Answers

Answer:

1080°

Step-by-step explanation:

sum = 180 ( n - 2)

note that octagon has 8 sides

therefore

sum = 180 ( 8 - 2)

sum = 1080°

Answer:

c.  1080

Step-by-step explanation:

= 180 x ( 8 - 2)

= 1080

(30 points) the line contains the point (5,-7) and is parallel to 4x+ 3y =-9 The equation of the line is:

Answers

Answer:

  4x +3y = -1

Step-by-step explanation:

To find the new constant for the equation, use the given x- and y-values:

  4(5) +3(-7) = 20 -21 = -1

The equation of the parallel line in standard form is ...

  4x +3y = -1

A chocolate company makes chocolate malt balls that have a radius of 0.34
inches. The carton they are to be packed in is approximately a rectangular prism with
dimensions 1.5 inches by 2.5 inches by 6 inches. How many malt balls will fit in the
carton

Answers

Answer:

Approximately 141 malt balls

Step-by-step explanation:

this problem is on the mensuration of solids shapes.

first we need to calculate the volume of the rectangular prism

volume of prsim= l*b*h

given that

length= 1.5 in

breath=2.5 in

hieght= 6 in

volume= 1.5*2.5*6

volume=22.5 in^3

secondly we then calculate the volume of a malt ball

given that

raduis r= 0.34

volume of sphere = 4/3πr^3

volume of sphere = 4/3*3.124*(0.34)^3

volume of sphere = 1.33*3.142*0.039

volume of sphere = 0.16 in^3

now we can calculate the amount of sphere that can fit into the prism as

= volume of prism/volume of sphere

= 22.5/0.16

=140.6

approximately 141 malt balls

Use the position function s(t) = –4.9t2 + 500, which gives the height (in meters) of an object that has fallen for t seconds from a height of 500 meters. The velocity at time t = a seconds is given by the following.
lim t->a: (s(a) - s(t)) / (a - t)
Find the velocity of the object when t = 3. (Round your answer to two decimal places.)

Answers

Complete Question

The complete question is shown on the first uploaded image

Answer:

The  value is  [tex]v(3) =  29.4 \  m/s[/tex]

Step-by-step explanation:

From the question we are told that

    [tex]s(t) =  -4.9t^2 + 500[/tex]

And  

    [tex]\lim_{t \to a}  \frac{s(a) - s(t)}{a-t}[/tex]

Generally s(t) at t = a is mathematically evaluated as

      [tex]s(a) =  -4.9a^2+ 500[/tex]

So

    [tex]s(a) - s(t) =  -4.9a^2 + 500 - ( -4.9t^2+500)[/tex]

     [tex]s(a) - s(t) =  -4.9a^2 + 500 +4.9t^2-500)[/tex]

      [tex]s(a) - s(t) = 4.9(t^2 - a^2)[/tex]

Thus the velocity is represented as

     [tex]v(t) =\lim_{t \to a}  \frac{s(a) - s(t)}{a-t} \equiv \lim_{t \to a} \frac{4.9(t^2 -  a^2 )}{ a-t}[/tex]

=>     [tex]v(t) = \lim_{t \to a}  - 4.9(a + t )[/tex]

=>      [tex]v(t) = -4.9 (a + a )[/tex]

=>      [tex]v(t) = -9.8a[/tex]

Now at  t =  3

=>  [tex]v(3) = -9.8 (3)[/tex]

=>   [tex]v(3) =  29.4 \  m/s[/tex]

I get paid $40 a month. If i want 5 less each month, how much should i get paid every week?

Answers

Answer:

$5 each week

Step-by-step explanation:

$40 a month

$10 a week

$10-$5 is $5 each week

If you want to be paid $5 less, then every month you will be paid $35

There the amount that you get paid every week will be:

35 ÷ 4 ( 1 month have 4 weeks )

= $8.75

3x+2y=4 solve for y?

Answers

The given equation term of y is, y=(3/2)x-2.

What is the equation?

A mathematical statement consisting of an equal symbol between two algebraic expressions with the same value is known as an equation.

Given equation in the problem is;

3x+2y=4

To solve the given equation for y first rearrange the equation and put the y variable on the left-hand side as;

2y=3x-4

Divide the whole equation by 2 we get;

y=(3/2)x-2

Hence, the given equation term of y is, y=(3/2)x-2.

To learn more, about equations, refer;

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twice this number is 1 less than half of 26

Answers

Answer:

2x = (1/2)(26) - 1

The number is 6.

Step-by-step explanation:

2x = (1/2)(26) - 1

2x = 13 - 1

2x = 12

x = 6

The answer is 6.

Explanation: 2x= 12; 12/2= 6. Therefore, x=6
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