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3 years ago

Can somebody help me pleasee hurry

Mathematics

2 answers:

alukav5142 [94]3 years ago

4 0

The answer is A.

Hope this helps!

Svetach [21]3 years ago

3 0

Answer:

Step-by-step explanation:

Given 2 similar figures with sides in the ratio a : b

Then the ratio of their areas is a² : b²

Hence

ratio of sides = 2 : 9, then

ratio of areas = 2² : 9² = 4 : 81 → A

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What would it cost Leopold to put decorative fencing along the top and bottom lengths of the fencing costs $2.25 per foot?

Ann [662]

270 dollars because 1440 divided by 12 equals 120. 120 times 2.25

is $270.000

5 0

3 years ago

In the rectangle below, SU= 4x-2, RT = 5x-10, and m ZSVT= 84º.

stepladder [879]

Answer:

RV = 15, ∠ VUR = 48°

Step-by-step explanation:

The diagonals of a rectangle are congruent , so

RT = SU , that is

5x - 10 = 4x - 2 ( subtract 4x from both sides )

x - 10 = - 2 ( add 10 to both sides )

x = 8

Then

RT = 5x - 10 = 5(8) - 10 = 40 - 10 = 30

The diagonals bisect each other , then

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---------------------------------------------------------------

∠ RVU = ∠ svt = 84° ( vertical angles )

RV = UV ( diagonals are congruent and bisect each other )

Then Δ RVU is isosceles with base angles congruent , then

∠ VUR = $\frac{180-84}{2}$ = $\frac{96}{2}$ = 48°

3 0

3 years ago

Class : IX

almond37 [142]

Step-by-step explanation:

a=8cm

b=15cm

c=17cm

s=a+b+c/2

=8+15+17/2

=40/2

=20

Using heron's formula,

ar. of triangle= √s(s-a)(s-b)(s-c)

=√20(20-8)(20-15)(20-17)

=√20×12×5×3

=√2×2×5×2×2×3×5×3

=2×2×3×5

=60cm²

On side 17cm,

Ar. of triangle=1/2×b×h

60=1/2×17×h

∴h=60×2/17

=7.05 cm

5 0

4 years ago

Simplify (write without the absolute value sign): 120+x, if x <- 120

Tju [1.3M]

Answer:

Step-by-step explanation:

hello :

120+x, if x <- 120

given : x <- 120 add 120 x+120<- 120+120

x+120< 0

8 0

3 years ago

Replace? with =, >, or < to make the statement true. 16 ÷ 4 + 12? 4 + 24 ÷ 2

AleksAgata [21]

16/4+12 ? 24/2
4+12 ? 12
16 ? 12
?=>

ANSWER: A - >

6 0

3 years ago