Mathematics High School

What is the value of the expression 12 x (-1.6)

Answers

Answer 1

Answer: -19.2

Step-by-step explanation:

Related Questions

Find the 7th term of the arithmetic sequence given a12=29 and
a16=53
a7=___

Answers

Answer:

Thus: a7=-1

Step-by-step explanation:

Arithmetic Sequences

The arithmetic sequences are identified because each term is obtained by adding or subtracting a fixed number to the previous term.

The equation to calculate the nth term of an arithmetic sequence is:

[tex]a_n=a_1+(n-1)r[/tex]

We know: a12=29, a16=53, thus

[tex]a_1+(12-1)r=29[/tex]

[tex]a_1+(16-1)r=53[/tex]

Simplifying:

[tex]a_1+11r=29[/tex]

[tex]a_1+15r=53[/tex]

Subtracting both equations:

[tex]4r=53-29=24[/tex]

Solving:

[tex]r=24/4[/tex]

r=6

The 7th term can be found as 5 terms before the 12nd:

[tex]a_7=a_{12}-5r[/tex]

[tex]a_7=29-5*6=29-30=-1[/tex]

Thus: a7=-1

BRAINLIEST ANSWER! I NEED HELP ASAP!!

Answers

Answer:

The answer is in the picture. I believe it is correct :)

Answer:

yep i checked it too its right

Multiply (12-5i)(-3+4i)

Answers

Answer:

−16 + 63i

Step-by-step explanation:

Multiply using the FOIL method, then combine the real and imaginary parts of the expression.

Hope this helps! :D

If Ryan gives 4/9 of his 36 cards to Josiah, how many cards does he give Josiah?

Answers

Answer:

16 cards

Step-by-step explanation:

Answer:

Ryan gave 16 cards to Josiah.

Step-by-step explanation:

First we will divide 36 by 9.

36/9 = 4

We know that 1/9 of 36 is 4.

1/9 + 1/9 + 1/9 + 1/9 = ?

4 + 4 + 4+ 4 = ?

4 * 4 = 16

4/9= 16

Ryan gave 16 cards to Josiah.

I NEED HELP ON THIS PLEASE!!

Below are the test scores for Ms. Brown's 1st and 2nd period math classes. Analyze the data and choose EACH correct statement:

1st period (Class A): 10, 15, 20, 25, 30, 35, 40

2nd period (Class B): 7, 12, 17, 25, 33, 38, 43

The standard deviation for Class A is 10

The standard deviation for Class B is 12.615

These are the options:

- The mean (average) score for each class is the SAME.

-The mean (average) score for each class is DIFFERENT.

- The variance for Class A is 125.

- The variance for Class B is 159.14.

- Class A has a greater spread.

- Class B has a greater spread.

- Based on the data, a score of 8 is more likely in Class B than Class A.

- If graphed, Class B would look more like the red graph below and Class A would look more like the blue one.

Answers

Answer:

hope that helps

Step-by-step explanation:

- If graphed, Class B would look more like the red graph below and Class A would look more like the blue one.

- Based on the data, a score of 8 is more likely in Class B than Class A.

- Class A has a greater spread.

Negative ten is no less than two times a number plus fourteen.

Answers

-10-2•14a it should be something like this

Answer:

-10 ≥ 2x + 14

Step-by-step explanation:

-10 ( negative ten )

≥ ( symbol for no less )

2x ( two times a number)

14 ( plus fourteen )

If -11 + N = -11, then N is the

Answers

Answer:

additive identity

Step-by-step explanation:

-11+N=-11     N=0

ADD 11 TO BOTH SIDES

-11+N+11   =-11 +11

(-11 AND 11 CANCEL EACH OTHER OUT ) THEREFORE

N=0

*Additive Identity Property states The sum of any number and 0 is that number.  

What fraction of an hour is 8 minutes?
Give your answer in its simplest form.

Answers

Answer:

2/15

Step-by-step explanaion

4/30 simplified is 2/15

The table (below) shows the amount of fuel left in your RV while driving. What type of function can you use to model the data? Estimate the amount of fuel left in your tank after driving for 90 minutes.

Im a lil confused someone help explain the problem please :)

Answers

Answer:

the answer is 4

Step-by-step explanation:

hope this helps

Find the slope and the y-intercept of the line.
y = 5/4x+3 ​

Answers

The slope is 5/4 and the y intercept is 0,3

The domain of a function h(x) is x > 3, and the range is y2 -2. What are the domain and range of its inverse function, h-1(x)?
A. Domain: x>3 Range: y2 -2
B. Domain: x2 -2 Range: y> 3
C. Domain: x>-2 Range: y> 3
D. Domain: x2 3 Range: y> -2 ​

Answers

Answer:

I think it's b I don't know for sure though

Step-by-step explanation:

I don't know for sure tho

Using inverse function concepts, the correct option is:

B. Domain: x < -2 Range: y> 3

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

The domain of a function is the set that contains all possible input values.The range of a function is the set that contains all possible output values.In the inverse function, input and output are exchanged, thus, domain and range are also exchanged.

For the original function, the domain is x > 3 and the range is y < -2.Thus, for the inverse function, the domain is x < -2 and the range is y > 3, which means that option B is correct.

A similar problem is given at https://brainly.com/question/24603090

Please someone helpppp!!!

Answers

Answer:

i think it is false, true, false

Step-by-step explanation:

I think it’s true, false true

NEED ANSWER ASAP!
How much time will Alex need to walk to his school, which is 2 1 4 miles away from his house, if he would walk with the speed of 3 mph?
I WILL MARK BRANIEST

Answers

Answer:

t=0.57h

Step-by-step explanation:

c) 2x(3x + 4)
expand the following:

Answers

Answer:

6x^+8x

Step-by-step explanation:

Its a monomial by a binomial, so we need to multiply the 2x with each term in the bracket, and put the sign in the brackets.

final answer: 6x^+8x

Answer:

[tex]6x^{2} +8x[/tex]

Step-by-step explanation:

Multiply 2x into the equation to get [tex]6x^{2} +8x[/tex].

Here goes another question

Answers

Answer:

y = x - 8

Step-by-step explanation:

In order to solve this, we need to use point-slope form.:

y - y1 = m(x - x1)

Substitute the numbers into the equation:

y - (-8) = 1(x - 0)

y + 8 = x

y = x - 8

the answer would be y=x-8 ...!

4.
Convert the following times into decimal time on the 24 hour clock:
1:30 PM=
09:12 AM=
11:54 PM=
4:15 PM=

Answers

Answer:

1:30pm = 13:30pm

09:12am = 09:12am

11:45 pm = 23:54pm

4:15pm = 16:15pm

Step-by-step explanation:

I'm in military school :)

Convert 132 pounds to kilograms. Use 1 kg = 2.2 lb.

Answers

1kg = 2.2lb

1lb = 0.454kg

132lb = 0.454*132

132lb = approx 60kg

Sturdy the diagram
Value of

Answers

Step-by-step explanation:

5x + 2 = 50 - x (vertically opp angle)

5x + x = 50 - 2

6x = 48

x = 8

if you wanna check it,

5x + 2 = 50 - x

5(8) + 2 = 50 - 8

40 + 2 = 42

42 = 42

The 7th grade class experienced a 15% decrease in enrollment.Last year,the 7th grade class had 280 students. How many how many students are enrolled in the 7th grade this year?

Answers

Answer: 238

Step-by-step explanation: 10% of 280 is 28. 1% of 280 is 2.8. Multiply 2.8 times 5 and you get 14. Add 10% and 5% (28+14) and you get 15% which is 42. Subtract 42 from 280 and you get 238.

Answer:

232 students are enrolled this year.

Step-by-step explanation:

Since 15% of the enrollment of the previous year is gone, you must take 15% of the total number of students and subtract that from the total number of students.

[tex]280*0.15=42[/tex]

This tells us that the 15% decrease means there are 42 fewer students enrolled this year. Now you would just subtract 42 from 280.

280 - 42 = 232

Thanks in advance!
filler filler filler filler filler

Answers

Answer:

C

Step-by-step explanation:

The base number is 2, and it's being multiplied 7 times, so 7 is the exponent

Hope this helps!

Write 0.00000029 in scientific notation.

Answers

[tex]29 \times {10}^{ - 8} = 2.9 \times {10}^{ - 7} [/tex]

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

Estimate the product. Then find the exact product.

7.9(10.1)
estimated product = 80, exact product = 7.97
estimated product = 80, exact product = 79.79
estimated product = 80, exact product = 797
estimated product = 80, exact product = 7,979

Answers

Answer:

79.79

Step-by-step explanation:

Any help with this plz!!! <33

Answers

Answer:

A = 37°B = 63°C = 16°

Step-by-step explanation:

The tangent function relates an angle to the measures of its adjacent and opposite sides. The inverse tangent (arctan) function can be used to find the angle from its tangent value.

  Tan = Opposite/Adjacent

   angle = arctan(opposite/adjacent)

A = arctan(3/4) ≈ 37°

B = arctan(2/1) ≈ 63°

C = arctan(2/7) ≈ 16°

rolex worked 40 hours last week. he had $74 deducted from his earnings for taxes. if he had $286 left after deduction, how much does rolex earn per hour?

Answers

He earned $9 per hour

9g + 14g + 4 = –19
plz help

Answers

Answer:

g=-1

Step-by-step explanation

Answer:

g=-1

HAVE A nice day

the sum of 4 consecutive integers is -62 write an equation to determine the smallest of the integers ​

Answers

Answer:

x + (x+1) + (x+2) + (x+3) = -62

x = -17

Step-by-step explanation:

x = smallest

x + (x+1) + (x+2) + (x+3) = -62

4x +6 = -62

4x = -68

x = -17

Match the following to the correct solution

Answers

Answer:

a/c/z

Step-by-step explanation:

five million, forty-three thousand, two hundred ninety-nine in numbers ​

Answers

Answer:

5,043,299

Step-by-step explanation:

five million = 5,000,000

forty-three thousand= 43,000

two hunded = 200

ninety-nine = 99

Answer:

5,043,299

Step-by-step explanation:

i thinks its that

A rectangle is drawn on a coordinate grid. The equation for one side of the rectangle is 2x – 5y = 9. Which could be the equation of another side of the rectangle?
y = 5x + 9
y = 2x – 9
y = -2/5x + 9
y = 2/5x - 9

Answers

Answer:

D

Step-by-step explanation:

it just is

What do the zero exponent and negative exponents properties mean

Answers

In other words, if you raise a nonzero number to the power of
0
,
the result is
1.

Mathematicians debate the value of
0
0
.
Some say it's
1
,
and some say it's undefined.

Here are some examples of the Zero Power Rule. Notice it works for numbers and for variables.

1
0
=
1
(
153
+
x
)
0
=
1
,
if
x
≠
−
153
(
x
+
y
+
z
)
0
=
1
,
if
x
+
y
+
z
≠
0

So when
a
≠
0
,
why does
a
0
=
1
?
Why does the Zero Power Rule hold? Here's one way to think about it:
a
0
=
a
n
−
n
Then, by the quotient rule for exponents, we can write this as:
a
n
−
n
=
a
n
a
n

Then this becomes a problem about dividing fractions. Since the numerator and the denominator are both the same this becomes
1
.
a
n
a
n
=
1


A negative exponent means how many times to divided by the number
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