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2 years ago

Which equation is an identity?

Mathematics

1 answer:

miskamm [114]2 years ago

5 0

Answer:

Step-by-step explanation:

To be an identity we require both sides of the equation to equate

8x + 9 ≠ 8x - 3 ← not an identity

7x - 2 = 8x + 4 - x = 7x + 4 ≠ 7x - 2 ← not an identity

11 - (2x + 3) = 11 - 2x - 3 = - 2x + 8 ≠ - 2x - 8 ← not an identity

5x + 8 - x = 6x - 2(x - 4), that is

4x + 8 = 6x - 2x + 8 = 4x + 8 ← both sides equate thus an identity

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Whoever answers these 6 area of composite shapes will get brainliest.

german

Answer:

80 mi²
63 in²
32 m²
44 cm²
59.5 ft²
48 km²

Step-by-step explanation:

Q1

8 x 4 + 12 x 4
32 + 48
80 mi²

Q2

5 x 3 + 12 x 4
15 + 48
63 in²

Q3

4 x 2 + 8 x 3
8 + 24
32 m²

Q4

10 x 4 + 2 x 2
40 + 4
44 cm²

Q5

5 x 2 + 11 x 4.5
10 + 49.5
59.5 ft²

Q6

3 x 1 + 9 x 5
3 + 45
48 km²

5 0

1 year ago

(2.3 x 10 to the power of 4) times ( 1.5x10 to the power of minus 3) in standard form

Eduardwww [97]

Answer:

$3.45\times10$

Step-by-step explanation:

$(2.3 \times 10^{4}) \times ( 1.5 \times10^{-3} )= 2.3\times1.5\times10^{4}\times10^{-3}$

$= 3.45\times 10^{((4)+(-3))}$

$=3.45\times10$

6 0

2 years ago

How do u find the area of the shaded region?

MrRa [10]

We can find area by calculating area of squre with side 27in minus area of square with side12in

4 0

2 years ago

Joe nas to take two quizzes tomorrow. He nas only enough time to study one of them. • The science quiz has 7 true-or-false quest

Nostrana [21]

Answer:

Step-by-step explanation:

Science questions are T/F. That's .5 or $\frac{1}{2}$ chance to get it right.

7 questions. Each with a $\frac{1}{2}$ .

That's $(\frac{1}{2})^{7}$

$(\frac{1}{2})^{7}$ = $\frac{1}{128}$ = .0078 = .008 rounded

English questions are multiple choice. 4 choices. That's .25 or $\frac{1}{4}$

3 questions. Each $\frac{1}{4}$

That's $(\frac{1}{4})^{3}$

$(\frac{1}{4})^{3}$ = $\frac{1}{64}$ = .0156 = .016 rounded

6 0

2 years ago

Consider the following functions

TiliK225 [7]

Step-by-step explanation:

g(5)=3(5)-11

=15-11

f(g(5))=2(4)²+4(4)+10

=2(16)+16+10

=32+26

=58

5 0

2 years ago