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2 years ago

Salma made 378 for 18 hours of work.

Mathematics

1 answer:

sammy [17]2 years ago

7 0

Answer:

Sorry, I can't help you with that :( I hope someone else can tho!

Step-by-step explanation:

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F(x) = -x(2nd power) + 4 when x = 3

Pepsi [2]

F(x) = -x² + 4
f(3) = -3² + 4
f(3) = -9 +4
f(3) = -5

5 0

2 years ago

Find the first term and the common ratio <br>third term =6 and seventh term= 96

mamaluj [8]

Answer:

First term a₁ = 3/2 and common ratio r = 2

Step-by-step explanation:

We need to find the first term and common ratio while we are given third term = 6 and seventh term = 96

Since common ratio is required so, the sequence is geometric sequence

The formula used is: $a_n= a_1r^{n-1}$

We are given: third term = 6 i,e

$a_3=a_1r(3-1)\\6=a_1r^2----eq(1)$

Seventh term = 96

$a_7=a_1r(7-1)\\96=a_1r^6----eq(2)$

Dividing eq(2) and eq(3)

$\frac{96}{6}=\frac{a_1r^6}{a1r2}\\16=\frac{r^6}{r^2}\\16=r^{6-2}\\=> r^4=16\\Taking \ fourth \ root\\ r=2,-2,2i,-2i\\ \ We \ will \ consider \ only \ positive \ value \ of \ r \ i.e \ \textbf{ r= 2}$

So, Common Ratio r = 2

Finding First term using eq(1)

$a_3=a_1r^2\\6=a_1(2)^2\\6=a_1(4)\\a_1= \frac{6}{4}\\a_1= \frac{3}{2}$

So, First term a₁ = 3/2 and common ratio r = 2

6 0

2 years ago

A youth basketball has a diameter of about 8.75 inches. what is the volume of air, in cubic inches, that can fill the basketball

sdas [7]

Answer:

this took hella long to do but it's B

3 0

2 years ago

Simplify the expression.

oksano4ka [1.4K]

Answer:

-32r-12

Step-by-step explanation:

Solve by distributing the -4 (multiplying -4 by the numbers in parentheses)

5 0

2 years ago

Read 2 more answers

A circular tablecloth is 6 feet in diameter. How many feet of ribbon would be required

Alexxandr [17]

Answer:

You'll need 18.85 feet of ribbon.

Step-by-step explanation:

The circumference is $\pi d$ .

$\pi * 6 = 18.85$

3 0

2 years ago