Hey guys can u help me on this one, I quite don’t get it

Answer:

Step-by-step explanation:

Answer:

a. -5°F, -8°C, 40°F, 10°C

Step-by-step explanation:

-17°C is when F = 0, so -8°C is way higher than -5°F. -8°C comes right after, and 40°F is a bit lower than 10°C. You can convert F to C is °F = (C * 9/5) + 32 and you can convert C to F with (F -32) x 5/9

Answer: 42

Step-by-step explanation:

Answer:

A class of 60 children

3/10 were absent

So we’re trying to find how many pupils are here (kids).

So lets use percentage.

Percentage means out of a hundred so 3/10 is 30/100.
Multiply 10 on each numerator/denominator and you’ll get 30/100.

Now 30/100 is 30 percent.

We are to find 30 percent of 60.

18 pupils are absent.

We’re trying to find who’s here so

60 - 18 = 42

42 pupils are present

Area = r^2 x pi

R = 1/2 diameter = 7.5 cm

Area = 7.5^2 x pi

Area = 56.25pi cm^2

Answer:

The answer is 50 cars per hour

Step-by-step explanation:

Simply divide 400 by 8 to get your answer

Hope that helps!

Answer:

Step-by-step explanation:

2x+30=180

2x      = 150

x        =  75

y=30

Answer:

(-2)3 -60, s5, 22, -5.1, 36, 78, 97

Answer:

Square and hexagon

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

P(7,r) = 5040

[tex]P(n,r)=\dfrac{n!}{(n - r)!}\\\\\\n = 7 \\\\\dfrac{7!}{(7 - r)!}=5040\\\\\\7! = (7-r)!*5040\\\\(7-r)!=\dfrac{5040}{7*6*5*4*3*2*1}\\\\\\(7-r)!=\dfrac{5040}{5040}\\\\\\(7-r)!=1\\\\[/tex]

(7 - r)! = 1!

7 -r = 1

7 = 1 + r

7 - 1 = r

r = 6

Answer:

  12.  B or C

  13.  C

  14.  A

  15.  A

Step-by-step explanation:

These problems involve various counting techniques. For combinations and permutations, there are formulas to aid in the counting. For other situations, you may need to list possibilities.

__

  P(7, r) = 5040 . . . . . given

  P(7, r) = 7!/(7 -r)! = 5040

  5040/(7 -r)! = 5040 . . . . . evaluate 7!

  (7 -r)! = 1 . . . . . . . . . . . multiply by (7-r)!/5040

We know that both 0! and 1! = 1, so this has two solutions:

  7 -r = 0   ⇒   r = 7

  7 -r = 1   ⇒   r = 6

Both choices B and C are correct.

The attached calculator output confirms this result.

__

The formula of choice C is correct:

  C(n, r) = n!/((n-r)!r!)

__

The number of permutations of the 9 letters is reduced by the numbers of permutations of letters that are indistinguishable. That is, the 9 letters can be rearranged 9! ways, but the 4 Es are indistinguishable, so a factor of 4! must be removed from that result. Similarly, the two Ns and two Ss are indistinguishable, so additional factors of 2! must be removed. The number of arrangements is ...

  9!/(4!2!2!) . . . . matches choice A

__

The 5 students can be arranged in 5 consecutive chairs in P(5, 5) = 5! = 120 ways. Those 5 consecutive chairs can start in chairs 1 through 6, so there are 6×120 = 720 ways the 5 students can sit together in 10 chairs.

Answer:

5 37/45

Step-by-step explanation:

9 3/5 - 3 7/9

Find like terms

9 27/45 - 3 35/45

Subtract whole numbers

9 - 3 = 6

Subtract fractions

27/45 - 35/45 = -8/45

Subtract both of the numbers

6  - 8/45 = 5 37/45

Answer:

A is the correct answer

Step-by-step explanation:

Probably

Answer:80 + 110

Step-by-step explanation:

start by diving 5 from each side so you are lrft with x on the left side, 40/5=8. now our equation is x=8 and that's the answer!

Answer:

[tex]x=8[/tex]

Step-by-step explanation:

Given the following question:

[tex]5x=40[/tex]

When solving one-step equations, you need to remember we are trying to isolate the variable. In this case to isolate the variable we need to divide both sides by 5.

[tex]5x=40[/tex]
[tex]5x\div5=x[/tex]
[tex]40\div5=8[/tex]
[tex]x=8[/tex]

Which means the value of x will be "8."

Hope this helps.

Answer:

y=-3x-6

Step-by-step explanation:

Answer:

B...look at the x axis and what part of the acis the graph is on.

Answer:

x = 10

Step-by-step explanation:

To solve, divide both sides by the base number then solve the exponents as an equation.

[tex]4^{x+2} = 4^{12}[/tex]

x = 10

[tex]~~~~~~ \textit{Continuously Compounding Interest Earned Amount} \\\\ A=Pe^{rt}\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill & \$300\\ r=rate\to 6.1\%\to \frac{6.1}{100}\dotfill &0.061\\ t=years\dotfill &13 \end{cases} \\\\\\ A=300e^{0.061\cdot 13}\implies A=300e^{0.793}\implies A\approx 700[/tex]

Answer:

what are you looking for? are you looking for mean,median,and mode,

Step-by-step explanation:

If so here they are.

Mean=13.1

The mean is the average of the numbers in the data set.

Median=13

The median is the middle number from it being sorted least to greatest.

mode=10,18

The mode is the number that appears most in a data set or sometimes numbers like right now it's numbers,both 10 and 18 appear twice.

Range=15

The range is the highest number subtracted by the lowest number. so what is 19 - 4?it is 15.

minimum=4

The minimum in a data set is the lowest number.

Maximum=19

The maximum is the highest number in a data set.

IQR is 8 because the IQR is based on the lower quartile subtracted by the higher quartile so 18 - 10=8

Hope this ws what you was looking for.

Hope it helps have a great afternoon:)

Answer:

Step-by-step explanation:

Two rectangles: one is 4 x 3, one is (8 - 4) x (3 - 1)

areas are: 4 x 3 = 12 and 4 x 4 = 16

total area = 12 + 16 = 28 units²

The simplified expression is 5x - 8.

So the correct answer is (D) 5x - 8.

Polynomial is an equation written with terms of the form kx^n.

where k and n are positive integers.

There are quadratic polynomials and cubic polynomials.

Example:

2x³ + 4x² + 4x + 9 is a cubic polynomial.

4x² + 7x + 8 is a quadratic polynomial.

We have,

To simplify the expression, we need to combine like terms.

(2x - 7) + (3x - 1)

= 2x + 3x - 7 - 1 (grouping like terms)

= 5x - 8 (combining like terms)

Therefore,

The simplified expression is 5x - 8.

Learn more about polynomials here:

https://brainly.com/question/2284746

#SPJ7

Answer:

15/25 or 3/5 or 60%

Step-by-step explanation:

P(K or M) = P(K) + P(M) - P(K and M)

               = [tex]\frac{10}{25}[/tex] + [tex]\frac{10}{25}[/tex] - [tex]\frac{5}{25}[/tex]

               = [tex]\frac{15}{25}[/tex]

               = .6 or 60%

Answer:

6, 7, 13. Choose the fact family formed by these numbers. 7 + 13 = 20 13 + 7 = 20 13 – 13 = 0 ... 6 x 7=42 42/7=6 Is correct my answer?

1 answer

·

Top answer:

7 + 6 = 13 13 = 7 + 6 13 – 6 = 7 7 = 13 – 6

Step-by-step explanation:

Answer:

13-6=7

13-7=6

7-6=13

6-7=13

Step-by-step explanation:

give brainly if it helps pls :D

Answer:

$15.49

Step-by-step explanation:

29.50*.50=14.75

14.75*.05=.74

14.75+.74=15.49

Step-by-step explanation:

If this were to make a triangle, then 30.1 and 0.8 would be the shorter sides and 31 would be the longest side.

The sum of the lengths of the shorter sides is 30.1+0

8=30.9.

Since this is less than the length of the segment that would be the longest side, by the triangle inequality theorem, these side lengths would not make a triangle.

Answer:

A. [tex]2x-4y=\pi[/tex]
B.  [tex]x=1[/tex]

C. [tex]2x-4y=3[/tex]

Step-by-step explanation:

A. [tex]2x-4y=\pi[/tex]. Any number could work as long as the coefficients for x and y stays the same. You are basically imposing that the quantity 2x-4y (if you bring 4y to the LHS) is equal to both -3 AND [tex]\pi[/tex], or any number you like. But yesterday was 3/14 so let's pick a fun number!

B.  [tex]x=1[/tex] Or [tex]y=1[/tex]. Or as long as you don't pick the same ratios of x and y you're golden. But x=1 is the easiest that comes to mind

C. [tex]2x-4y=3[/tex]. To get infinitely many solutions you just have to rewrite the equation again. Maybe move things around if you prefer, or multiply everything by a number you lile.

Answer:

The answer is 2064

Answer:

They say that the sum of the two numbers (x and y) is 64, so we can write our first equation by adding them and setting that sum equal to 64:

x + y = 64

The question also tells us that their difference is 14. Similarly to before, we'll just subtract the two numbers and set that difference equal to 14:

x - y = 14

Now from here, you know how to continue with substitution to find the values for x and y. Just remember when you get a word problem to break it down and look for key words like sum, difference, or product, and from there you'll be able to build your system of equations.

Step-by-step explanation:  

So... where it says Y=4x-1, take the 4x and plot it on the y axis, next on the equation it says -1, plot -1 on the left ( X-axis)

I hope this helps

2.05 I think if the question was just 4 1/10 ÷2

[tex]\longrightarrow \sf 2\dfrac{1}{20}[/tex]

[tex]\begin{gathered}\\\implies\quad \sf 4 \frac{1}{10} \div 2 \\\end{gathered} [/tex]

Converting to mixed fraction-

[tex]\begin{gathered}\\\implies\quad \sf \frac{4\times 10+1}{10} \div 2 \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf \frac{41}{10} \div 2 \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf \frac{41}{10} \div \frac{2}{1} \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf \frac{41}{10} \times \frac{1}{2} \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf \frac{41}{20} \\\end{gathered} [/tex]

Writing final answer again in mixed form

[tex]\begin{gathered}\\\implies\quad \sf 2\frac{1}{20} \\\end{gathered} [/tex]