Choose all the expressions that will result in a positive answer.

a. -3 + - 9 =
b. a(b) =
c. -43 - (-55) =
d. -3 x -9 =
e. 4 x 9 x -3 x -1 x 12 =
f. (-3 + 4) x -5 =

Answer:

B

Step-by-step explanation:

Answer:

bruh

Step-by-step explanation:

1: They brought 3.9 litters of cranberry Juice and 8.74 litter of apple juice.

2: They mixed the juices together, indicating that you will add the two number

    a. 3.9+8.74=12.64

3. Then they poured it equally into 2 bottle, indicating that you will divide by      

   two.

      a     12.64/2=6.32

They poured 6.32 litter of juice in each bottle.

Answer:

common difference is 4.

Step-by-step explanation:

the 32th term is 121.

the sum of all the numbers up through the 32th term is 1888

Answer:

13 and 28

Step-by-step explanation:

(2x+2)-x=15

x+2=15

x=13

The number of people that have an IQ between 71 and 118, to the nearest whole number is 1030.

A Z-score helps us to understand how far is the data from the mean. It is a measure of how many times the data is above or below the mean. It is given by the formula,

Z = (X-μ)/σ

Where Z is the Z-score,

X is the data point,

μ is the mean and σ is the standard variable.

Given the mean is 100, while the standard deviation is 15. Therefore, we can write,

P(71≤X≤118) = P(X≤118) - P(X≤71)

                   [tex]= P(Z\leq \dfrac{118-100}{15}) - P(Z\leq \dfrac{71-100}{15})\\\\= P(Z\leq 1.2) - P(Z\leq -1.933)\\\\= 0.8849 - 0.0268\\\\= 0.8581[/tex]

Thus, of the population of 1200, 85.81% of the people will have an IQ between 71 and 118. Therefore, the number of people who have the IQ between 71 and 118 are:

Number of people = 1200 × 0.8581 = 1029.72 ≈1030

Hence, the number of people that have an IQ between 71 and 118, to the nearest whole number is 1030.

Learn more about Z-score:

https://brainly.com/question/13299273

#SPJ1

Answer:

6 + 4 pounds (Combo) (gimme brainliest if big brain)

Step-by-step explanation:

Step-by-step explanation:

mental don't post this type of question

Answer:

first is a) option and second is b) option

9514 1404 393

Answer:

  x = 5

Step-by-step explanation:

The left-side bottom edge is marked as 30. The total bottom edge is marked as 45, so the right side length will be ...

  45 -30 = 15

The top (slanted) edge marked 10 is 1/3 the length of the corresponding bottom edge (30). Then x will be 1/3 of 15, or ...

  x = 5

_____

If you like, you can write a proportion:

  total/long part = (10+x)/10 = 45/30

  30(10+x) = 45(10)

  10+x = 15 . . . . divide by 30

  x = 5 . . . . . . . . subtract 10

Answer:

Ok I’ll give a simple equation that your teacher probably won’t accept and one that your teacher will accept

Teacher accept: x-45=122

Not accept but way easier: 122+45=x

ALSO The answer to x: 167

Step-by-step explanation:

Heres the loop hole, they asked for 2 sentences but never declared the length of each sentence.

Explanation:

So we know that grace lost 45 pounds and at the end she weighs 122.

We don’t now what the beginning weight so we can make an equation like x-45=122 where x represents her before weight and the subtract 45 is when she lost that much and the final results of 122, if solved You’ll get her begginisng weight, 167.

Answer:

0=-31

Step-by-step explanation:

Answer:

50%

Step-by-step explanation:

The 4 weeks in unnesseccary information when it comes to the formula of change over time.

Formula: P=N-O/O times 100

P= percentage, n=new unit(12), o=old unit(6),

First, Subtract 6 from 12 getting 6. Then, divide 6 by 12, getting 0.5. Lastly, multiply 0.5 by 100 to get 50, which is your percent of change.

Given:

In ΔDEF, d = 5.3 cm, e = 2.4 cm and f=4.7 cm.

To find:

The measure of ∠F to the nearest 10th of a degree.

Solution:

According to the law of cosine:

[tex]\cos A=\dfrac{b^2+c^2-a^2}{2bc}[/tex]

In ΔDEF,

[tex]\cos F=\dfrac{d^2+e^2-f^2}{2de}[/tex]

Putting the given values d = 5.3, e = 2.4 and f=4.7, we get

[tex]\cos F=\dfrac{(5.3)^2+(2.4)^2-(4.7)^2}{2(5.3)(2.4)}[/tex]

[tex]\cos F=\dfrac{11.76}{25.44}[/tex]

[tex]\cos F=0.46226[/tex]

Taking cos inverse on both sides, we get

[tex]F=\cos^{-1}(0.46226)[/tex]

[tex]F=62.4669^\circ[/tex]

[tex]F\approx 62.5^\circ [/tex]

Therefore, the measure of angle F is 62.5 degrees.

Answer:

62.5

Step-by-step explanation:

Answer:

4a+5a+7b-b

the first thing is to put the like terms together

Step-by-step explanation:

then add or subtract as given after pairing.

Therefore;

our answer is; 9a+6b

since it is factorisable we can further write it this way; 3(3a+2b)

q2) 6c+4d-c-7d

we first put the like terms together

6c-c+4d-7d

we then add and subtract

5c-3d

since our answer is not factorisable we leavem;

5c-3d as our final answer

Answer: w=0

Step-by-step explanation:

Answer:

2/3 pages per minute

Step-by-step explanation:

First we do 6/9. Then simplyfy. This equals 2/3. (I'm sorry if this is incorrect! )

Answer:

I can help with one complex root.

Step-by-step explanation:

I know that one of the complex roots would be 4x^4

Answer:

4

Step-by-step explanation a dog poops 5 kg a day

Answer:

Part a leaves color shape smell

part since it is small i infer it is small to

Step-by-step explanation:

Answer:

m = 0 or m = 2

Step-by-step explanation:

m² - 2m = 0

m ( m − 2 ) = 0

m = 0

m − 2 = 0

m = 2

Answer:

cuz of math

Step-by-step explanation:

Step-by-step explanation:

f(x) = x + 3 for x >= -2.

Hence f(-2) = (-2) + 3 = 1.

So you're given two ifs. If x is less than -2, use the top equation. If x is equal to or greater than 2, use the bottom equation.

Since x = -2, use the bottom equation.

[tex]f(x)=x+3\\f(-2)=-2+3\\f(-2)=1[/tex]

Your answer is f(-2) = 1.

Answer:

13 cans

Step-by-step explanation:

1.48 times 6 is equivalent to $8.88 Which is the amount you can get for sets of 2, but if you divide 1.48 by 2 you get .74 which add that to 8.88 and get 9.62 which makes 13 cans.

Answer:

Part A)

The equation in the point-slope form is:

[tex]y-11=\frac{4}{3}\left(x-\left(-2\right)\right)[/tex]

Part B)

The graph of the equation is attached below.

Step-by-step explanation:

Part A)

Given

The point-slope form of the line equation is

[tex]y-y_1=m\left(x-x_1\right)[/tex]

Here, m is the slope and (x₁, y₁) is the point

substituting the values m = 4/3 and the point (-2, 11)  in the point-slope form of the line equation

[tex]y-y_1=m\left(x-x_1\right)[/tex]

[tex]y-11=\frac{4}{3}\left(x-\left(-2\right)\right)[/tex]

Thus, the equation in the point-slope form is:

[tex]y-11=\frac{4}{3}\left(x-\left(-2\right)\right)[/tex]

Part B)

As we have determined the point-slope form which passes through the point (-2, 11) and has a slope m = 4/3

The graph of the equation is attached below.

Answer:

y = 22.5x

worked 28 hours

Step-by-step explanation:

First find out what they make in 1 hour (rather than 40)

you can do this by 900 / 40 which gives you 22.5

this means for every hour worked, they get $22.50

so you can make the equation of y = 22.5x

try finding the hours worked by division

630/ 22.5 = 28

plug 28 into your equation to check

y = 22.5 ( 28 )

y = $630

hope this helps

Answer:

$1.56 per pound

Step-by-step explanation:

18.72/12 = 1.56

Correct answer is option A. T

Answer:

12

Step-by-step explanation:

STEP 1: 1/3 DIVIDED BY 4

STEP 2: 1/3 DIVIDED BY 4/1

Than flip 1/3

STEP 3: 3/1 DIVIDED BY 4/1

THAN INSTEAD OF DIVIDING MULTIPLY

SO,

STEP 4: 3 TIMES 4 =12

STEP 5: 1 TIMES 1 = 1

STEP 6: 12/1 TURNS INTO 12