Mathematics High School

Evaluate
1.3 + 12 + 2.1 =​

Answers

Answer 1

Answer:

The answer is 15.4

Step-by-step explanation:

hope this helps

1.3 + 12 =13.3+2.1=15.4

Related Questions

slope of 6,9 and 7,1

Answers

Answer:

-8/1 or just -8

Step-by-step explanation:

2x - 3= y + 3
2x + y = -3
​

Answers

Answer:

your answers are

Step-by-step explanation:

1. [tex]2x-3=y+3[/tex]

[tex]2x-3=y+3\\ 2x+y=-3\\divide |by |2\\x+y=-1.5[/tex]

so x + y = -1.5

x+y = -1.5


i hope that helped

can you please help​

Answers

Answer:

5

Step-by-step explanation:

Because the 2 sides and 2 other sides and bottom

Answer:

The prism has 5 faces

Step-by-step explanation:

A face is a side of a polygon.

~theLocoCoco

find the mesurement of the angle?

Answers

Answer:

100

Step-by-step explanation:

if both sides are the same then you can mirror the angles only if there equal

I think the angle is 100

Find x so that l || m. Show your work.​

Answers

Answer:

x = 22

Step-by-step explanation:

If l and m are parallel, then

(2x + 60) and 130° are same- side interior angles and are supplementary, thus

2x + 6 + 130 = 180 , simplify

2x + 136 = 180 ( subtract 136 from both sides )

2x = 44 ( divide both sides by 2 )

x = 22

what is the length and width. PLEASE HELP​

Answers

Answer:

x = 15.857143 (round this if you want)

Step-by-step explanation:

Total perimeter = 96

Values given = x, 6x-15

so:

x+6x-15 = 96

Using an unmentioned calculator, i get that x = 111/7 or 15.857143

Answer:

I think the anwser is

length =28 feet

the width=20 feet

Step-by-step explanation:

у = х – 5
What is the slope

Answers

Let's solve for x

Y=x-5

step 1:flip the equation

x-5=y

step 2:Add 5 to both sides

x-5+5=y+5

x=y+5

answer :x=y+5

PLEASE MARK ME AS BRAINLIEST

(-2,-3), y=2x-1 write the equation in slope intercecpt form

Answers

The slope intercept form y=2x^2-x-13. Hope this helps :)

r
S
(2x + 2)
p
(x + 56)
(y + 7),
(3y – 17)°
9
Find the value of that makes p || 9.
Find the value of y that makes || s.
y

Answers

Answer:

x = 54

y = 47.5

Step-by-step explanation:

If two lines p and q are parallel and line r is a transversal intersecting these lines at two different points,

(x + 56)° = (2x + 2)° [corresponding angles]

2x - x = 56 - 2

x = 54

Similarly, lines r and s are parallel lines and q is a transversal line intersecting these lines,

(y + 7)° + (3y - 17)°= 180° [Consecutive exterior angles]

4y - 10 = 180

4y = 190

y = 47.5

simplify- (3a^4)^2(-2ab^2)^3

Answers

Answer:

The answer is =72a¹¹b⁶

Step-by-step explanation:

hope that helps

abdul uses 12/19 gallon of paint to paint 4 birdhouse. how much paint for 1 birdhouse?

Answers

Answer:

3/19

Step-by-step explanation:

First, make 4 a fraction. Now, flip 4/1 to 1/4 for the following instruction: Do 12/19 x 1/4 = 12/76. Now divide both the denominator and numerator by 4 which equals 3/19.

Answer:  3/19 gallon

Step-by-step explanation:  1/4 of 12 is 3.

Just keep the denominator.

A store has a 20% off discount. If the original price of a shirt is $48, how
much will you pay?

Answers

Answer:

38.40

Step-by-step explanation:

I just took the test

What is the median of the following set of numbers: 14, 17, 11, 17, 12, 13, 13, 14, 19, 25, 22, 18, 11, 23, 9

Answers

Answer:

9

Step-by-step explanation:

Answer:

14

Step-by-step explanation:

Arranging the numbers in ascending order,

9,11,11,12,13,13,14,14,17,17,18,19,22,23,25

Median = 14

Where is the blue dot on the number line?

Answers

Answer:

4.9

Step-by-step explanation:

each line increases an incriment

What is the least common factor of 2, 4 and 6

Answers

I think it’s 12. Because 2x6 is 12 4x3 is 12 and 6x2 is also 12

20 points Beatrice threw a stone one and seven fourteenths yards. Tilly threw a stone nine fourteenths of a yard. What is a reasonable estimate of the difference between their two throws?
a
1 yard

b
one and one half yards

c
2 yards

d
two and one half yards

Answers

Answer:

C is the answer. Because 9-7=2

MAKING YOU BRAINLIEST IFF YOU ANSWER CORRECTLY

Solve the proportion.
35/k=7/3
k=

Answers

Answer:

k=15

Step-by-step explanation:

Let |q| = 5 at an angle of 45° and |r| = 16 at an angle of 300°. What is |q – r|?

Answers

The value of vector |q-r| = 18

What is Cosine Rule?

The Cosine Rule can be used in any triangle relate all three sides to one angle.

Let OA =|q|

OB = |r|

BA = |q|-|r|

Hence ∠AOB = 45°+(360°-300)

∠AOB = 45°+60°

∠AOB = 105°

Given  |q| = 5,  |r| = 16

Now using cosine rule

|q-r| = √(16)²+(5)²-2×16×5×cos105°

|q-r| = 18

Learn more about Cosine Rule

https://brainly.com/question/22390660

#SPJ2

Answer:

18

Step-by-step explanation:

edg 2023

Help please!!! Idk the answer.. if anyone knows then will u help me please!!! I will mark as BRAINLIEST​

Answers

Problem 9

1 liter = 1000 cubic cm

The base of the carton has area 50 cm^2, or 50 square cm.

Let A = 50 to represent the area.

The height h is unknown. It multiplies with the value of A to get the volume

V = A*h

1000 = 50*h

50h = 1000

h = 1000/50

h = 20

Answer: The carton is 20 cm tall

=======================================================

Problem 10

Part (a)

Along the 4 cm side of the box, we can fit 4/2 = 2 dice side by sideAlong the 7 cm side of the box, we can fit 7/2 = 3.5 = 3 dice. Note how I rounded down instead of up. Having 4 dice will lead to 4*2 = 8 cm, but 8 is larger than 7.Along the 5 cm side of the box we can fit 5/2 = 2.5 = 2 dice

This 3D configuration will allow us to fit 2*3*2 = 12 dice in total

Answer: 12 dice will fit

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

Part (b)

The box has volume 5*4*7 = 140 cubic cm

Each die has volume 2*2*2 = 8 cubic cm. There are 12 dice we can fit in, so 12*8 = 96 cubic cm is the amount of volume taken up by the dice

We have 140-96 = 44 cubic cm of empty air left over.

Answer: 44 cubic cm

=======================================================

Problem 11

1 liter = 1000 cubic cm

8 liters = 8000 cubic cm

So he has 8000 cubic cm of soil

The volume of the cube is

(22.5)^3 = (22.5)*(22.5)*(22.5) = 11,390.625 cubic cm

He won't have enough soil to completely fill the cube shaped planter

We can be able to determine this by recalling that 2^3 = 8, so (20)^3 = 8000. Meaning that a cube shaped planter of sides 20 cm will lead to a volume of 8000 cubic cm. Anything over 20 cm will lead to a larger volume.

So in short, spotting the 22.5 being larger than 20 is a quick way to know that the planter has more volume compared to the amount of soil he has.

Answer: He won't have enough soil to completely fill the planter

Answer:

Which of them do you want us to answer.

In the number shown, which digit is in the hundredths place? 589.127​

Answers

i think it's 5 but i'm not sure

Answer:

0.02 is in the hundredths place.

Step-by-step explanation:

The decimal point represents the great divide between whole numbers and fractions of whole numbers.

The first digit behind the decimal point is called the “Tenths” place. Since you can get a whole number “one” (which is what the first digit in front of the decimal point is called) you can’t possible have a “one...ths” place.

Right after tenths you have hundredths. (which is what you’re looking for.) This is the second digit behind the decimal point.

After that you have thousandths, ten thousandths, and so on.

Pay close attention to the spelling. “Hundredths” and “hundred” are look similar but could be the difference between an A and an F.

Hope this helped! :)

awnser this for braainliest pls

Answers

Answer:

4.5 so 5

Step-by-step explanation:

36 divided by 8= 4.5

Answer:

5 packets

Step-by-step explanation:

If you do 36 divide by 8 u get 4.5

Then you round up to get 5.

If that doesn't make sence read this:

4 x 8 = 32

Mom has 32 cookies.

She needs one more packet to get 36 cookies (she will have extra)

32 + 8 = 40

She will have 4 extra btw

The answer is 5

GIMME BRAINLEITSTSTS! Hope this helps! :)))

I will give brainliest to the person who does all ten problems first

Answers

Answer:

1)   5p+10-p

4p+10

2)  8h+12h-18

20h-18

3)  4x+32+9x

13x+32

4)  6y+8+9

6y+17

5)9x+12x+18

21x+18

6) 9m+9+2m

11m+9

7)  2r+18-6

2r+12

8)  15d+8

9)  8m+8+3m

11m+8

10)  5y+20+10y

15y+20

find the value of b (please help quick)

Answers

Answer:

B=6

Step-by-step explanation:

It is very simple.

Y ≤ X – 4 lies in all quadrants except:
Will give brainliest!!!!!!!!!!!

Answers

The 2nd quadrant


.........

A local business was looking for a cleaning service to work on their property. They narrowed their choices down to companies. Molly maids company charges a flat rate of $100 per hour. Sparkly clean company charges $80 per hour plus $260 equipment fee. A) determine and state the number of hours that must be worked for the cost of both companies to be the same. B) if it is estimated to take at least 30 hours to company the job, which company will be less expensive? Justify your answer.

Answers

Answer:

A. 13 hours

B. Sparkly clean company

Step-by-step explanation:

Step one:

given

Molly maids company

charges a flat rate of $100 per hour

let the total charges be y

let the number of hours be x

the expression for the total charges for Molly maids is

y=100x---------------1

Step two:

Sparkly clean company

charges $80 per hour

equipment fee=$260

let the total charges be y

let the number of hours be x

the expression for the total charges for Sparkly clean  is

y=80x+260---------------2

A) determine and state the number of hours that must be worked for the cost of both companies to be the same.

Equate equations 1 and 2

100x=80x+260

solve for x, collect like terms

100x-80x=260

20x=260

divide both sides by 20

x=260/20

x=13 hours

B) if it is estimated to take at least 30 hours to company the job, which company will be less expensive

x=30

Molly maids company

y=100x

y=100*30

y=3000

$3000

Sparkly clean company

y=80x+260

y=80*30+260

y=2400+260

$2660

Sparkly clean company  will be less expensive for a 30 hour work

The wholesale price of a lamp is $44 and will be marked up by 40 percent. What is the retail price of the lamp?
$40.00
$48.00
$61.60
$84.40

Answers

Answer:

i think $61.60

Step-by-step explanation:

Answer:

It is 61.60

Step-by-step explanation:

does anyone know the answer ?

Answers

Answer:

As I’m unsure as to whether or not this is a joke or not, I’ll say 15 cm.

It’s 15cm for the answer

Maria bought shoes for $40. Taxes are 7% and there is a 15% discount. What is her total cost?​

Answers

Answer:

31.2

Step-by-step explanation:

15+7 = 22

100-22 = 78

78% * 40

= 31.2

which value of x makes the equation true? 6(x-3)=4x-7

Answers

Answer:

hope this helps!

[tex]x = 5.5[/tex]

Solve the inequality. (Ape.x)

16(1/4x - 1/2) > 24 - 2x

Thank you in advance for any help!

Answers

Answer:

x>14

Step-by-step explanation:

Step 1: Simplify both sides of the inequality.

-4>-2x+24

Step 2: Flip the equation.

-2x+24<-4

Step 3: Subtract 24 from both sides.

-2x+24-24<-4-24

-2x<-28

Step 4: Divide both sides by -2.

-2x-2<-28-2

x>14

If it is right can I have brainliest.

Answer:

woomy...

Step-by-step explanation:

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