Please help ASAP!!!!!!!!!!!!!

Step-by-step explanation:

Since b2 is certainly positive, that means a2 is certainly negative, which is impossible. √−1=i is an imaginary number, not lying anywhere on the real number line. Therefore as others have said, it is neither rational nor irrational in the usual senses of those words.

Answer:

No, you would get -1

Step-by-step explanation:

Square root of 1 is 1

If the negative was IN the square root, it would be imaginary.

Answer:

$650

Step-by-step explanation:

Her hourly rate = $12.50 then

overtime rate = 2 × $12.50 = $25

For a 46 hour week she has 6 hours overtime , then

earnings = (40 × $12.50) + (6 × $25)

               = $500 + $150

               = $650

Answer:

rational number

Step-by-step explanation:

[tex]1 \frac{2}{3} \times 3 \frac{1}{2} \\ \\ = \frac{5}{3} \times \frac{7}{2} = \frac{35}{6} \\ \\ = 5.83 = \frac{35}{6} = 5 \frac{5}{6} [/tex]

I hope I helped you^_^

Answer:

35 /6  =  5 5/ 6

Step-by-step explanation:

1 2 /3  × 3 1 /2 is just like 5 /3  ×  7 /2 so 5x7 and 3x2 equals 35/6 but in mixed from it is 5 5/6.  

Answer:

There is a difference between A and a

Step-by-step explanation:

When you are labeling angles, capitol letter means the angle degree while a lowercase letter means a side length.

Answer: the answer is D

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

HK is double of HW, so: [tex]42=2(x^2+5)[/tex]

Then solve. Divide both sides by 2.

21=x²+5

16=x²

4=x

I hope this helps and good luck on the rest of your HW

Problem 61

The nth triangular number is

T(n) = n(n+1)/2

I'll rewrite this into

T(n) = 0.5n(n+1)

The triangular number right after this is

T(n+1) = 0.5(n+1)(n+2)

I replaced every n with n+1 and simplified

Let's see what we get when we add up the two expressions

T(n) + T(n+1)

0.5n(n+1) + 0.5(n+1)(n+2)

0.5n^2+0.5n + 0.5(n^2+3n+2)

0.5n^2 + 0.5n + 0.5n^2 + 1.5n + 1

n^2+2n+1

(n+1)^2

This shows that the sum of any two consecutive triangular numbers results in a square number

Here's a few examples

Note each sum is a perfect square, which visually would plot out a square figure.

For quick reference, the set of the first few triangular numbers is {0, 1, 3, 6, 10, 15, 21, 28, 36, 45, 55,...}

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

Problem 64

Let's say we go with n = 5.

This means,

T(n) = 0.5n(n+1)

T(n-1) = 0.5(n-1)(n-1+1)

T(n-1) = 0.5n(n-1)

T(5-1) = 0.5*5(5-1)

T(4) = 10

This says that when n = 5, the 4th triangular number is 10

Triple that result and add on n = 5

3*T(4) + n = 3*10+5 = 35

This result is beyond obvious which category of figurate number it belongs to. It's not a triangular number since it's not in the form n(n+1)/2. It's not a square number either.

Through a bit of trial and error, you should find it's a pentagonal number

Pentagonal numbers are of the form n(3n-1)/2

If you plugged n = 5 into that, it leads to 35

n(3n-1)/2 = 5*(3*5-1)/2 = 5*14/2 = 70/2 = 35

The diagram shown below represents the first few pentagonal numbers. The number of blue dots corresponds to the pentagonal number itself. Note the equal spacing when dealing with dots on each segment (eg: some interior blue dots are midpoints, others are quarter points, etc.)

High school A:  3 vans + 12 buses = 504 students

High school B: 2 vans + 4 buses = 184 students

Multiply High school B by 1.5:

High school B: 3 vans + 6 buses = 276 students

Subtract High school B from High School A:

6 buses = 228 students

Divide students by buses:

Buses = 228 / 6 = 38 students per bus

Now solve for vans using high school A:

3 vans + 12(38 students per bus) = 504 students

Simplify:

3 vans + 456 students in buses = 504 students

Subtract students in buses from both sides:

3 vans = 48

Divide both sides by 3:

Vans = 16

Answer: vans = 16 students, buses = 38 students

Answer:

Step-by-step explanation:

Um okay...

Anyways...

[tex]\frac{1}{2} \times - 2 + \frac{1}{3} \times - 5 \\ \\ = \frac{1}{ \cancel2} \times \cancel{- 2} + \frac{1}{3} \times - 5 \\ \\ = 1 \times - 1 + \frac{1}{3} \times - 5 \\ \\ = - 1 + ( - \frac{5}{3} ) \\ \\ = - 1 - \frac{5}{3} \\ \\ = \frac{ - 3 - 5}{3} \\ \\ = \frac{ - 8}{3} = - 2 \frac{2}{3} [/tex]

Answer: C :Determine whether 9 – 4(–x)² is equivalent to –(9 – 4x²).

Step-by-step explanation:

A function f(x) is odd if f(-x)=-f(x).

We have thus to determine if 9-4*(-x)²= -(9-4*x²).

which is false since this function is even !!!

Answer is C

Answer:

check the file above and got any confusion then comment it .

hope this helped you,

Answer: 2600

Step-by-step explanation:

[tex]u_1=3\\u_2=5=3+2=3+2*(2-1)\\u_3=7=5+2=3+2*2=3+2*(3-1)\\u_4=9=3+2*3=3+2*(4-1)\\...\\u_n=3+2*(n-1)\\\\u_{50}=3+2*49=101\\\\\displaystyle \sum_{i=1}^{50}(3+2*i)=\dfrac{3+101}{2} *50=2600\\[/tex]

Answer: x = - 4/13

Step-by-step explanation:

2.5x+10=x+12+8x

10-12 = x+8x-2.5x

-2 = 6.5x

x = -4/13

Answer:

3.4

Step-by-step explanation:

Answer:

[tex]p=8[/tex]

Step-by-step explanation:

[tex]-12\left(-4+p\right)=-48[/tex]

Divide both sides by -12:-

[tex]\frac{-12\left(-4+p\right)}{-12}=\frac{-48}{-12}[/tex]

[tex]-4+p=4[/tex]

Add 4 to both sides:-

[tex]-4+p+4=4+4[/tex]

[tex]p=8[/tex]

OPEACEO ^^

[tex]\large \mathfrak{Solution : }[/tex]

let's solve for p

Answer:

its best no to

Step-by-step explanation:

The only thing you can really change is switching subtraction and addiction, or division and multiplication. In the long run though its best just to say with the regural order and its earier later on.

please, (parentheses)

excuse (exponents)

my (multipliction)

dear (division)

aunt (addiction)

sally (subtraction)

Answer:

by/x cents

Step-by-step explanation:

if x apples cost b cents then 1 apple with cost b/x cents and y apples will cost (b/x)×y which gives by/x cents

Answer:

67.5 miles

Step-by-step explanation:

22.5 miles = 20 minutes

67.5 miles = 60 minutes

Answer:

Step-by-step explanation:

#Let'sLearn

Answer:

58

Step-by-step explanation:

only 3 people ordered seafood so u add 43 12 and 3

SORRY IF I AM WRONG

Answer:

Step-by-step explanation:

Answer:

600400

Step-by-step explanation:

Answer:

Bring the first dot down to 1 but leave it in the 15 row

Then the middle one bring to the right one line (to 30) and then down two rows (to 2)

And the one on the right bring one line to the right

[tex]\boxed{\underline{\bf \: ANSWER}}[/tex]

[tex] \sf\frac { 3 + p } { 2 } = 6 \\ [/tex]

Multiply both sides by 2.

[tex] \sf \: 3+p=6\times 2 [/tex]

Multiply 6 and 2 to get 12.

[tex] \sf \: 3+p=12 [/tex]

Subtract 3 from both sides.

[tex] \sf \: p=12-3 [/tex]

Subtract 3 from 12 to get 9.

[tex] \boxed{\bf \: p=9} [/tex]

____

Hope it helps.

RainbowSalt2222

Answer:

y = a - k

Step-by-step explanation:

k = a - y

k + y = a - y + y

k + y = a

k + y - k = a - k

y = a - k

Question

What is the diameter of 11.94 cm circumference

Answer:

Soln,

We know that  diameter = * 2 radius

radius = 11.94/2= 5.97 half of diameter and when you multiply with 2 ,Then it comes 11.94cm  

Now

Step-by-step explanation

Circumference = 2πr

11.94 = 2*22/7*r

11.94 = 6.28r

r= 11.94/6.28

therefore, r= 1.90 cm

Now

We know that  diameter = * 2 radius

diameter = 1.90*2 = 3.80 cm

answer checking,

Circumference = 2πr

c= 2*22/7*1.90

therefore c = 11.94 cm

ans proved

plz mark me brainliest and thanks

have a good day ahead ; )

Answer:

Step-by-step explanation:

Question= 8(3x-5)

To solve this, we have to use the distribution property. In this method, we multiply the 8 with 3x and -5 in this example.

Solving we get:

Area=24x-40

Hope this helps!