Help fast plsssssssssss

Help Fast Plsssssssssss

Answers

Answer 1
-9-(-12)=-9+12=3
-9-12=-9+(-12)=-21
Answer 2

Answer:

- and -. =+ so-9+12=3

Step-by-step explanation:

the minus changes to plus and then we solve


Related Questions

Please help 13 points number 3 no links !

Answers

Answer:

H

Step-by-step explanation:

[tex]\frac{1}{4} + \frac{4}{5} = 1\frac{1}{20}[/tex]

Answer:

Hi, using L.C.M, It will be option H

20% of what number = 100

Answers

Answer:

500

Step-by-step explanation:

is 100 is 20%, multiply 100 by 5

answer: 500

explanation:

20% times 5 is 100 so 100 times 5

To help with his retirement savings, Dan has decided to invest. Assuming an interest rate of 3,43% compounded quarterly, how much would he have to invest
to have $148,700 after 18 years?
Do not round any intermediate computations, and round your final answer to the nearest dollar. If necessary, refer to the list of financial formulas.
00
si
X
5
?

Answers

Answer:

He would have to invest $80,412.

Step-by-step explanation:

Compound interest:

The compound interest formula is given by:

[tex]A(t) = P(1 + \frac{r}{n})^{nt}[/tex]

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.

Assuming an interest rate of 3,43% compounded quarterly.

This means that [tex]r = 0.0343, n = 4[/tex]

How much would he have to invest to have $148,700 after 18 years?

This is P for which [tex]t = 18, A(t) = 148700[/tex]. So

[tex]A(t) = P(1 + \frac{r}{n})^{nt}[/tex]

[tex]148700 = P(1 + \frac{0.0343}{4})^{72}[/tex]

[tex]P = \frac{148700}{(1 + \frac{0.0343}{4})^{72}}[/tex]

[tex]P = 80412[/tex]

He would have to invest $80,412.

1. a. The equation of a straight line is 2y = 3x +4,
Find the gradient of this line,​

Answers

Answer:

3/2

Step-by-step explanation:

2y = 3x + 4

y = (3/2)x + 2

^ ^ ^ ^

y = m x + c

m = 3/2

What is the missing number

Answers

Answer:

1

Step-by-step explanation:

Find the surface area plz

Answers

Answer:

Step-by-step explanation:

4 triangles

Each of the 3 from the vertical ones has area

A = bh/2 = 10.12/2 = 60ft^2

The latter surface pointing down

A = bh/2 = 10.8.7/2 = 43.5 ft^2

SO summation of all

60+43.5 = 103.5 ft^2

Which solid figure has the following net? Pentagonal prism hexagonal prism hexagonal pyramid pentagonal pyramid

Answers

The correct answer is pentagonal prism.

Please help me in like 2 minutes due in 3 minutes

Answers

The answer: 2+4x5=22

Answer:

5 dummy

Step-by-step explanation:

If a basketball court is 94 feet long and 50 feet wide, what is the area of a basketball court?

Answers

94 x 50 = 4700 square feet

Answer:

4700

Step-by-step explanation:

To find the area, the formula is to multiply the width and the length. That is what I did and got 47 hundred


In triangle ABC, the length of side AB is 19 inches and the length of side BC is 28 inches. Which of the following could be the
length of side AC?

Answers

Answer:

43 inches

Step-by-step explanation:

2. Perform the following multiplication: (+5)(-2)(+7)(-4)(-1)

Answers

Answer:5

Step-by-step explanation:

The answer would be NEGATIVE 280

An administrator at a local high school wanted to investigate whether there is an association between the amount of time a student studies for a test and the type of extracurricular activity the student is involved in. Three hundred students selected at random were asked how long they had studied for the last math test and how many extracurricular activities they are involved in. The times they had studied were recorded as either not at all, less than 30 minutes, or more than 30 minutes. Each student also identified which extracurricular activity (out of a total of 5 extra curricular activities) they were involved in. The calculated chi-square test statistic was 7.53 with a corresponding

Answers

Answer:

The answer is "When you don't deny the null hypothesis, you'll lose. Since a p-value of 0.4807 is higher than a level of significance of 0.05, the test also isn't statistically important".

Step-by-step explanation:

The state of the hypotheses values

Null hypothesis:

[tex]H_0:[/tex]There is still no connection between how the time a student invests studying for the test  and what kind of endurance sport he or she participates in.

Null hypothesis:

[tex]H_l :[/tex] There is indeed a connection between how the time a student invests studying for a test and the  type of endurance sport in that he or she participates.

Law of Rejection:

Null hypothesis value is rejects, when the P-value is less than or equal to 0.05. P-value is 0.4807,  which is greater than 0.05, based on the information provided.

Choose all the fractions that are equivalent to 4/12 2/8 9/27 8/24 5/15 1/3

Answers

4/12=2/6 2/8=28 9/27=6/18 hope this help

PLEASE HELP DUE TODAY

Answers

9514 1404 393

Answer:

  16 square units

Step-by-step explanation:

When you plot the points, you see they define a trapezoid with bases of lengths 2 and 6, and a height of 4. The area formula is ...

  A = (1/2)(b1 +b2)h

  A = (1/2)(2 +6)(4) = 16

The area of the trapezoid is 16 square units.

HELP!!I NEED IT RIGHT NOWWWW

Part B: Select the possible dimensions, in inches of the container.
1in, lin, 10 in
1in. 2 in, 5 in
O O O O
1 in 2 in, 15 in
1 in. 9 in 10 in
2 in 3 in 5 in
2 in 5 in 9 in

Answers

Answer:

2  3   5

Step-by-step explanation:

The confidence interval for the sample regression function slope A) can be used to conduct a test about a hypothesized population regression function slope. B) can be used to compare the value of the slope relative to that of the intercept. C) adds and subtracts 1.96 from the slope. D) allows you to make statements about the economic importance of your estimate.

Answers

Answer:

A) can be used to conduct a test about a hypothesized population regression function slope.

Step-by-step explanation:

A least squares regression line is a standard technique in regression analysis used to make the vertical distance obtained from the data points running to the regression line to become very minimal or as small as possible.

In Mathematics, residuals are used to measure or determine whether or not the line of regression is a good fit or match for the data by subtracting the difference between them i.e the predicted y value and the actual y value, for the x value respectively.

The confidence interval for the sample regression function slope can be used to conduct a test about a hypothesized population regression function slope.

sally has 200$ in her checking account and gets paid 15$ an hour for babysitting kent has $245 in his checking account and gets paid $12 an hour for baby sitting how many hours do kent and sally need to work to have the same amount on money in their checking account

Answers

Answer:

Sally and Kent would have to each work a total of 15 hours to have the same amount of money in their checking account.

Step-by-step explanation:

Set up equations.

x = hours, T = total $

Sally:

T = 200 + 15x

Kent:

T = 245 + 12x

Set both equations equal to each other.

200 + 15x = 245 + 12x       (subtract 200 from both sides)

15x = 45 + 12x          (subtract 12x from both sides)

3x = 45            (divide both sides by 3)

x = 15

5
Type the correct answer in each box.
50°
60°
709
Х
50°
The value of xis
o, and the value of yis

Answers

Answer:

x = 60°

y = 50°

Step-by-step explanation:

✅x = 180° - (50° + 70°) (sum of interior angles of a triangle theorem)

x = 180° - 120°

x = 60°

✅Based on the exterior angle theorem, the sum of the opposite interior angles of a triangle = the exterior angle.

Therefore,

50° + 60° = x + y

Plug in the value of x

50° + 60° = 60° + y

110° = 60° + y

y = 110° - 60°

y = 50°

Tell wether the triangle with the given side is a right triangle.

Answers

Answer:

Number 4 is a right triangle whether 3 isnt.

Step-by-step explanation:

I just know this because a right triangle is always gonna have a 90 degree angle whether that number 3 doesnt have one

Which statement describes a unit rate?
A. Joe rides his bike 5 miles and walks 1 mile.
B. Joe rides his bike 30 miles in 3 hours.
C. Joe rides his bike 15 miles per 1 hour.
D. Joe rides his bike 1
2
mile in 10 minutes.

Answers

Answer:

C

Step-by-step explanation:

unit rate means 1 and it says that 15 per hour which shows that c is the answer

Answer:

C. Joe rides his bike 15 miles per1 hour.

Step-by-step explanation:

Key word: PER

Any time you see the words PER, EACH, stuff like that, it is unit rate. Hope this helps!

A school needs 2,400 notebooks for next year if the notebooks come in packages of 60, how many packages should the school buy?

Answers

Answer:

40

Step-by-step explanation:

Divide 2400 by 60 to get 40

Hope this helps!

Answer:

40

-step explanation:

1. At the post office, Tiffany paid $11.04 for 24 stamps. At this rate, how much Would it cost Tiffany to buy 18 stamps?
A. $0.46 B. $2.76 C. $8.28 D.$17.64


2. A group of friends hiked 7 miles in 2 hours. At this same rate, what is the total number of miles they can hike in 8 hours?
a. 40 Miles
b. 28 miles
C. 11 miles
D. 9 miles


Giving brainly to Who every answer this question Please explain

Answers

1. I think is C
2. a

Answer:

For question one: $8.28

For question two: 28 miles

Step-by-step explanation:

For question one: You divide 11.04 by 24 to get .46 the multiply that .46 by 18 to get 8.28

For question two: The ratio between the two is 7/2 and x/8. So to find x, you divide 8 by 2, getting 4. Then multiply that 4 by 7 to get 28.

Scarlet made a scaled copy of the following quadrilateral. She used a scale factor greater than 1. What could be the length of the side that corresponds with AD on the scaled copy of quadrilateral.​

Answers

Answer:

10 or any number >9

Step-by-step explanation:

Side AD is 9 units long so if the scale factor is greater than 1 you multiply that side by 1.  This will give you a number such as 10 or 18 or any number that is greater than 9.

Liam is a tyre fitter.
It takes him 124 minutes to fit 4 tyres to a lorry.
a)
How long would it take him to fit 6 tyres to a lorry?
b)
If he works for 93 minutes, how many tyres can he fit?

Answers

a) 186 minutes
b) 3 tyres

We can take 124 and divide it by 4 to see how long it takes him to fit 1 tyre, then use that number to sort the rest out.

124/4 = 31

It takes Liam 31 minutes to fit one tyre to a lorry.

To fit 6 tyres, it takes 6 x 31 = 186 minutes

If he works for 93 minutes,
93/31 = 3 tyres

Please let me know if you have any questions.

A scale drawing of a rectangular park had a scale of 1 cm = 100 m.
What is the actual area of the park in meters squared?
PLEASE HELP, 40 POINTS!

Answers

Answer:

521,400

Step-by-step explanation:

660 times 790

The area of the rectangular park which having 660 meter and 790 meter is  521400 m².

How to find area of rectangle ?

A = l b is the formula for the Area of a Rectangle. Once the length and width of a rectangle are known, the area is calculated. The area of a rectangle can be calculated by multiplying its length and width.

The area is the amount of space covered by a flat surface of a specific shape. It is expressed as a "number of" square units. The number of unit squares that can fit into a rectangle is defined as its area. Rectangular shapes include the flat surfaces of laptop monitors, blackboards, painting canvas, and so on. The space occupied by these objects can be calculated using the area of a rectangle formula.

In this figure 1 cm = 100 m

6.6 cm * 100m = 660 m

7.9 cm * 100m = 790 m

Area of the park =  521400 m²

To learn more about area refer :

https://brainly.com/question/25292087

#SPJ2

A binomial probability experiment is conducted with the given parameters. Compute the probability of x successes in the n independent trials of the experiment. ​n=10 p=0.15 x<4


The probability of x<4 successes is

Answers

The probability of x<4 successes is P(X <4) = 0.01909.

How to find that a given condition can be modelled by binomial distribution?

Binomial distributions consist of n independent Bernoulli trials.

Bernoulli trials are those trials that end up randomly either on success (with probability p) or on failures( with probability 1- p = q (say))

Suppose we have random variable X pertaining to binomial distribution with parameters n and p, then it is written as

[tex]X \sim B(n,p)[/tex]

The probability that out of n trials, there'd be x successes is given by

[tex]P(X =x) = \: ^nC_xp^x(1-p)^{n-x}[/tex]

In this question:

​n=10 p=0.15 x<4

[tex]P(X =x) = \: ^nC_xp^x(1-p)^{n-x}\\\\\\P(X < 4) = \: ^{10}C_40.15^4(1-0.15)^{10-4}\\\\\\P(X < 4) = \: ^{10}C_40.00050625(0.85)^{6}\\\\\\P(X < 4) = 0.01909[/tex]

So, P(X <4) = 0.01909.

Learn more about binomial distribution here:

https://brainly.com/question/13609688

#SPJ1

is 12cm, 24cm, 29cm a right triangle

YES OR NO

Answers

i don’t think so but sorry if i am wrong

Answer: no it is 10,24,26

Step-by-step explanation:

HELP PLEASE VERY IMPORTANT​

Answers

Answer:

[tex]2 \times (7 \times 3 + {3.5}^{2} \times \pi \times 0.5) + (7 + 6 + (7 \times \pi \times 0.5)) \times 9[/tex]

What is P(11 and 13)?
A. 1/8
B. 1/4
C. 1/16
D. 1/64

Answers

Answer:

i think it would be a) 1/8

Step-by-step explanation:

sorry if its wrong

Miguel has $30. He spends $6.00 on a movie ticket, $3.80 for snacks, and $1.00 for bus fare each way.

How much money does Miguel have left?

Miguel has $ left.

Answers

19.2 is your answer i am 100% sure of it have a great day! plz mark brainlyest

Answer:

answer is 19.2 left ........

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