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3 years ago

What is the verbal expression of 23f

Mathematics

1 answer:

ira [324]3 years ago

7 0

When a number and letter are together, it means multiplication.

So, it is read as "23 times f".

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The greens want to put an additional on their house 18 months from now they will need to save 10620 in order to achieve this goa

GREYUIT [131]

Answer:

sbebebvdevevevsvsvevwvwvwwvevev

6 0

3 years ago

What is the fourth term in the binomial expansion (a+b)^6)

Dafna11 [192]

Answer:

$20a^3b^3$

Step-by-step explanation:

<u>Binomial Series</u>

$(a+b)^n=a^n+\dfrac{n!}{1!(n-1)!}a^{n-1}b+\dfrac{n!}{2!(n-2)!}a^{n-2}b^2+...+\dfrac{n!}{r!(n-r)!}a^{n-r}b^r+...+b^n$

<u>Factorial</u> is denoted by an exclamation mark "!" placed after the number. It means to multiply all whole numbers from the given number down to 1.

Example: 4! = 4 × 3 × 2 × 1

Therefore, the fourth term in the binomial expansion (a + b)⁶ is:

$\implies \dfrac{n!}{3!(n-3)!}a^{n-3}b^3$

$\implies \dfrac{6!}{3!(6-3)!}a^{6-3}b^3$

$\implies \dfrac{6!}{3!3!}a^{3}b^3$

$\implies \left(\dfrac{6 \times 5 \times 4 \times \diagup\!\!\!\!3 \times \diagup\!\!\!\!2 \times \diagup\!\!\!\!1}{3 \times 2 \times 1 \times \diagup\!\!\!\!3 \times \diagup\!\!\!\!2 \times \diagup\!\!\!\!1}\right)a^{3}b^3$

$\implies \left(\dfrac{120}{6}\right)a^{3}b^3$

$\implies 20a^3b^3$

7 0

2 years ago

Which is the directrix of a parabola with equation x2 = 8y?

olga_2 [115]

Answer:

Y=-2

Step-by-step explanation:

You would use the vertex form to find the directrix

4 0

3 years ago

12 out of every 15

astraxan [27]

Answer: 348 students do not own a cell phone.

Step-by-step explanation:

12 out of 15 = 80%

80% of 435 = 348

4 0

3 years ago

PLZ HELP BRAINLIEST THANKS AND 20 POINTS ADDED

schepotkina [342]

Circumference=diameter times pi
diameter=12
circumference=12 times pi
we use pi=3.14
circumfernce=12 times 3.14
circumference=37.68 ft
round to tenth
8 is greater than 5 so roundup
37.7ft

3 0

3 years ago

Read 2 more answers