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FrozenT [24]
3 years ago
10

Can somebody help me out pleaseeee ??

Mathematics
2 answers:
frutty [35]3 years ago
8 0

answer : 54cm^2

pythagorus’ theorum : a^2 + b^2 = c^2

so 9^2 + x^2 = 15^2, x being the missing length

work out x ...

81 + x^2 = 225

x^2 = 144

x = 12

area of a triangle : 0.5 x base x height

so 0.5 x 9 x 12 = 54

nexus9112 [7]3 years ago
5 0

Answer:

67.5cm^2

Step-by-step explanation:

area of a triangle is 0.5xaxb

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Leona spent $22.95 at the mall. She bought a T-shirt and a book. The book $12.25. How much did the T-shirt cost?
dimaraw [331]

A) Let x = cost of t-shirt:

x= 22.95-12.25

B) x = 22.95 -12.25 = 10.70

C) the t-shirt cost $10.70


4 0
3 years ago
Determine if the expression is greater than 1.
Korvikt [17]

Answer:

yes

Step-by-step explanation:

hope it will help

8 0
3 years ago
What fraction equal to 1/2 with a denominator of 6 and a fraction equal to 1/3 with a denominator of 6. Then add the fractions.
horrorfan [7]

Answer:

5/6

Step-by-step explanation:

1/2 + 1/3 need a common denominator to add them up.

1/2 is the same as 3/6.

1/3 is the sane as 2/6.

3/6 + 2/6

Add the tops, but keep the same denominator.

3/6 + 2/6 = 5/6

5/6 cannot be simplified, so that's the answer. That's how you do it! Hope this helps!

7 0
2 years ago
Write a rule for the nth term of the geometric sequence for which a1=−6 and a5=−486
patriot [66]

The geometric rule for the nth term of the geometric sequence for which a1 =−6 and a5=−486 is -6 × 3^(n - 1)

<h3>The nth term of a geometric sequence</h3>

First term, a1 = -6

Fifth term, a5 = -486

a5 = ar^(n - 1)

-486 = -6 × r^(5-1)

-486 = -6r⁴

r⁴ = -486 / 6

r⁴ = 81

r = 4√81

r = 3

Geometric rule:

nth term = ar^(n-1)

nth term = -6 × 3^(n - 1)

Learn more about geometric sequence:

brainly.com/question/24643676

#SPJ1

7 0
2 years ago
A gardener measured the heights of two plants at the end of every week. The function y=3x+8.5 gives the hight of plant a in cent
MAVERICK [17]

Answer:

12 weeks

Step-by-step explanation:

Step one:

given data

let the heights of the plants be y

and the number of weeks be x

Plant A

y=3x+8.5--------------1

Plant B

y=2.5x+14.5----------2

Required

The number of weeks taken for both plants to have the same height

,equate the two expressions above

3x+8.5=2.5x+14.5

3x-2.5x=14.5-8.5

0.5x= 6

divide both sides by 0.5

x= 6/0.5

x= 12 weeks

6 0
3 years ago
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