3 years ago

Find the value of ST:

Mathematics

1 answer:

Ronch [10]3 years ago

4 0

Answer:

Step-by-step explanation:

It's the only one which 5x + 1 can equal, with x being 3.

Hope that helps!

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87th term of 12,0,-12

Elan Coil [88]

Answer:

$a_{87} = -1020$

Step-by-step explanation:

Given:

The given AP is.

12,0,-12,......

$n=87$

The first term of an AP $a=12$

Common difference $d=0-12=-12$

We use the the formula for nth term of an AP.

$a_{n} = a+(n-1)d$

for 87th term

$a_{87} = 12+(87-1)(-12)$

$a_{87} = 12+(86)(-12)$

$a_{87} = 12+(-1032)$

$a_{87} = 12-1032$

$a_{87} = -1020$

Therefore, The 87th term of given series is -1020.

5 0

3 years ago

Evaluate the following expression using the values given.find 2x2 − 2z4 y2 − x2 z4 if x = −4, y = 3, and z = 2.numerical answers

aleksley [76]

To answer the question above, substitute the values of the variables x, y and z given to the equation.
2x² - 2(z^4)y² - x²(z^4)

2(-4)² -2(2^2)(3²) - (-4)²(2^4) = -296

Thus, the numerical answer to the question above is -296.

7 0

4 years ago

A bank offers simple interest loans at an interest rate of 6% per year. How much interest will you pay if you borrow.$1,200 for

kenny6666 [7]

Answer:

$216

Step-by-step explanation:

6% of 1200 = 72

72x3=216

7 0

3 years ago

Maxim and Salma were asked to find an explicit formula for the sequence 54,63,72,81,... Maxim said the formula is f(n)=54+9n Sal

Sever21 [200]

ANSWER

The explicit rule is

$f(n) = 45+9n$

EXPLANATION

The given sequence is :

54,63,72,81,...

The first term of this sequence is

$a = 54$

The common difference is

$d =63 - 54 = 9$

The explicit rule is given by:

$f(n) = a + d(n - 1)$ $f(n) = 54+9(n -1 )$

We expand to get:

$f(n) = 54+9n -9$

$f(n) = 45+9n$

None of them is correct .

8 0

4 years ago

Two trucks were driven on a 1,680 kilometer (km) trip. the first truck averaged 14 km per liter of fuel for the trip, and the se

kiruha [24]

for the first truck 1680 / 14 = 120 liters used

the second 1680 / 12 = 140 litres used

so 140-120 = 20 liters <span>the second truck used more </span>

8 0

3 years ago