30x³ + 10x²
Help me please ​

Answer:

[tex]4x + 20[/tex]

Step-by-step explanation:

[tex]4(x + 3) + 8 = 4x + 12 + 8 = 4x + 20[/tex]

Answer:

7

Step-by-step explanation:

mean means average

there are 8 numbers

add them all up

7+8+9+2+4+5+12+9=56

divide 56 by 8 = 7

This is the  Answer :

true

Answer:

40

Step-by-step explanation:

50 / 10 = 5

8 * 5 = 40

Both should be divisible by same amount and that is 5.

Answer:

40

Step-by-step explanation:

Answer:

I think the answer is <1 and <4 are supplementary angles

Answer:

64/7

Step-by-step explanation:

Pattern = Multiplying by -4

-16/7 x -4/1

64/7

Answer:

1, 4, 6.

Step-by-step explanation:

[tex]\left(2n+8\right)\left(n+4\right)=2n^2+16n+32[/tex]

1. [tex]2(x+4)^2=2n^2+16n+32[/tex]

2. [tex]2\left(n+4\right)\left(n+4\right)=2(n+4)^2[/tex]

3. [tex]16n+32=16n+32[/tex]

4. [tex]2n^2+16n+32=2n^2+16n+32[/tex]

5. [tex]2n^2+8n+32=2n^2+8n+32[/tex]

6. [tex]2(n^2+8n+16)=2n^2+16n+32[/tex]

As you can see from the answers it is 1, 4, and 6.

Step-by-step explanation:

5a.

10 white squares

15 shaded squares

5b.

a1 = 1 = 2×1 - 1

a2 = a1 + 2×2 - 1 = 2×1 - 1 + 2×2 - 1 = 2×(1+2) - 2

a3 = a2 + 2×3 - 1 = 2×(1+2+3) - 3

...

an = 2×(1+2+...+n) - n = 2×n×(n+1)/2 - n = n²

so,

a350 = 350² = 122,500

figure350 has 122,500 squares.

5c.

a1 = 1

a2 = a1 = 1

a3 = a2 + 5

a4 = a3 = 6

a5 = a4 + 9

a6 = a5 = 15

a7 = a6 + 13

a8 = a7 = 28

...

a(2n) = a(2n - 1)

a(2n - 1) = a(2(n-1) - 1) + 1 + 4(n - 1) = n×1 + 4(0+1+2+...+n-1) =

= n + 4×(n-1)×n/2 = n + 2×(n² - n) = 2n² - n

therefore,

a350 = a349

a349 = a(2×175 - 1) = 2×175² - 175 = 61,075

figure350 has 61,075 shaded squares.

Answer:

m=0

Step-by-step explanation:

Add

13m

and

24m

.37

m=

41m

Move all terms containing m

to the left side of the equation.

Answer:

Attachment 1:  graph of [tex]y=\sin(\theta)[/tex]

(using given scale)

Question (a) (Attachment 2)

[tex]\sin(\theta)=0.6[/tex]

Draw the line [tex]y=0.6[/tex] (shown in blue).

Find the points of intersection of the sine curve and the line.

Measure to find the values of [tex]\theta[/tex]

[tex]\theta=37^{\circ},143^{\circ}\:\textsf{(nearest degree)}[/tex]

Question (b) (Attachment 3)

[tex]4\sin(\theta)=-3[/tex]

[tex]\implies \sin(\theta)=-\dfrac34[/tex]

Draw the line [tex]y=-\dfrac34[/tex] (shown in red).

Find the points of intersection of the sine curve and the line.

Measure to find the values of [tex]\theta[/tex]

[tex]\theta=229^{\circ},311^{\circ}\:\textsf{(nearest degree)}[/tex]

Answer:

1 : 0.75.

Step-by-step explanation:

15/20 = 0.75

So its 1 : 0.75

Answer:

1 : 0.75

Step-by-step explanation:

20÷20=1

15÷20=0.75

n=0.75

Let see

Option B

Answer: negative 1 over 2

− 1/2

=negative 0.5−0.5

Reason why:

Step 1 of 2: Add.

Add

(negative 2 over 3 − 2/3) + 1 over 6

1/6

= negative 3 over 6 −3/6

Simplify

negative 3 over 6−

3

6

= negative 1 over 2−

1/2

Step 2 of 2: Simplify, sub-step a: Reduce fraction to lowest terms.

Reduce fraction to lowest terms

negative 3 over 6 −3/6

= −( 3 ÷ 3 ) over ( 6 ÷ 3 )

3 ÷ 3 6 ÷ 3 = negative 1 over 2 −1/2

Answer: 5

Step-by-step explanation:

Answer:

-3x(2x+1)(3x-4)

Step-by-step explanation:

Add and subtract the second term to the expression and factor by grouping.

Anser and Explanation:

First, factor out an x to get:

[tex]x(-18x^2 + 15x + 12)[/tex]

Then, factor out a -3:

[tex]-3x(6x^2 - 5x - 4)[/tex]

Finally, factor by grouping:

[tex]-3x(6x^2 + 3x - 8x - 4)[/tex]

[tex]-3x(3x(2x + 1) - 4(2x + 1))[/tex]

[tex]-3x(3x - 4)(2x + 1)[/tex]

so -3x(3x - 4)(2x + 1) is the factored expression.

Answer:

[tex] \frac{1}{5} [/tex]

making both sides d same value makes d sentence true

Answer:

The correct answer is A

Step-by-step explanation:

When you simplify it it's A

Answer:

5/12

Step-by-step explanation:

"When two dice are thrown, the total number of sample spaces is 36.

Favourable outcomes = {(1,1),(1,2),(1,4),(1,6),(2,3),(2,3),(2,5),(3,2),(3,4),(4,1),(4,3),(5,2),(5,6),(6,1),(6,5)}

Total number of favourable outcomes = 15

Hence, the probability of getting a sum of prime numbers = 15/36 = 5/12."

This was taken from a Byjus post.

Hope this helps.

Answer:

[tex]y'=2sec^2(x)tan(x)[/tex]

Step-by-step explanation:

Answer:

2,6 / Number 3

Step-by-step explanation:

Thats the right answer

Answer:

(2,6)

Step-by-step explanation:

moving 3units to the left gives (2,4) and 2units above gives (2,6) finally

Answer:

117

Step-by-step explanation:

well, if they are supplementary, and they are on the same line and a line is equal to 180 degrees, then its as easy as 180-63=117

Answer:

um 21

Step-by-step explanation:

126

A percentage is a proportion of some whole number. There are 2 ways to find percentages. Firstly, you can multiply by a decimal, or you can use a shortcut.

Multiplying with Decimals

You can always rewrite percentages as decimals. To do this move the decimal point 2 digits to the left. This means that 90% becomes 0.90. Then multiply this decimal by the whole number to find the correct percentage.

Shortcut

Because 90% is a multiple of 10%, we can use a shortcut. First off, find 10% of 140. To find 10% of any number, move the decimal 1 digit to the left. This means 10% of 140 is 14.0. Next, 90% is 10% less than 100%. So, subtract 10% from 140 to find 90%.

Answer:

126

Step-by-step explanation:

We need to find 90% of 140.

90% is the same as 0.9 or 9/10.

140 can be written as 14 x 10.

Multiply 14 x 10 with 9/10.

⇒ 14 x 10 x 9/10

[The 10 and 1/10 cancel out by cross multiplication]

⇒ 14 x 9

⇒ 126

Answer:  cash, paychecks, checks

Step-by-step explanation:

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Answer:

50/50 chance a black ball will be picked

Answer:

I hope it helped you

Step-by-step explanation:

Pls check the given attachment

I hope it helped you

Answer:

Answer:

-15 is the answer

Step-by-step explanation:

According to the BODMAS (bracket of Division Multiplication Addition Subtraction) rule

=5*10-5*13

=50-65

=-15