All categories

2 years ago

Please help answer and explanation im very confused.

Mathematics

1 answer:

Veseljchak [2.6K]2 years ago

6 0

Answer:

1) 18m²

2) 25cm²

Step-by-step explanation:

a = ½ × b × h
a = ½ × 9 × 4
a = ½ × 36
a = 18m²

a = ½ × b × h
a = ½ × 10 × 5
a = 5 × 5
a = 25 cm²

You might be interested in

Slope = -5/2; y-intercept = -3

ivanzaharov [21]

Answer:

y = -5/2x - 3

Step-by-step explanation:

y = mx + b

m = slope

b = y intercept

y = -5/2x - 3

4 0

3 years ago

Read 2 more answers

If f(x)=3x^2+2×=1 find f(x+2)

harkovskaia [24]

Answer:

f(x+2) = 3(x+2)^2 + 2(x+2 + 1

Step-by-step explanation:

you need to replace the x with x+2

3 0

3 years ago

HELP PLEASE 21 POINTS PLEASE HELP ME!!!! <3

Anna007 [38]

n 1 2 3 4 5 6

f(n) 1033 932 831 730 629 528

First term (a₁): 1033 Common difference (d): -101

Explicit rule: $a_{n} = 1134 - 101n$ Recursive rule: $a_{n} = a_{n-1} - 101$

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

$a_{n} = 1033 - 101(n - 1)$

$a_{n} = 1033 - 101n + 101$

$a_{n} = 1134 - 101n$

***********************************************************************************

n 1 2 3 4 5 6

f(n) -39 -29 -19 -9 9 19

First term (a₁): -39 Common difference (d): +10

Explicit rule: $a_{n} = -49 + 10n$ Recursive rule: $a_{n} = a_{n-1} + 10$

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

$a_{n} = -39 + 10(n - 1)$

$a_{n} = -39 + 10n - 10$

$a_{n} = -49 + 10n$

***********************************************************************************

n 1 2 3 4 5 6

f(n) 3.75 2.5 1.25 0 -1.25 -2.5

First term (a₁): 3.75 Common difference (d): -1.25

Explicit rule: $a_{n} = 5 - 1.25n$ Recursive rule: $a_{n} = a_{n-1} - 1.25$

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

$a_{n} = 3.75 - 1.25(n - 1)$

$a_{n} = 3.75 - 1.25n + 1.25$

$a_{n} = 5 - 1.25n$

6 0

4 years ago

Y=-(5)^2=-100 how do I do that

Leona [35]

All you have to use is pemdas and keep y by itself

7 0

3 years ago

Pls help I have a test today in math :( no 1 would help me pls try to help and its in 12:20 so I have a lot of time but pls help

DanielleElmas [232]

Answer:

C. he did not multiply the numerator by 2

Step-by-step explanation:

To find an equivlent fraction, you must multiply the numerator and denominator by the same thing.

3 0

3 years ago

Read 2 more answers