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3 years ago

Simplify. 5 - {-(-2)} A)-3 B) 3 C)-7 D) 7

1 answer:

5 0

5 - {-(-2)}
5 - {+2} (negative + negative = positive)
5 - 2 (negative + positive = negative)
3

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Evaluate the expression for a = 27, b = 26, c = 27, d = 23: a+b-c-d

artcher [175]

For this case we have the following expression:

$a + b-c-d$

We must evaluate the expression when:

$a = 27\\b = 26\\c = 27\\d = 23$

Substituting the values we have:

$a + b-c-d = 27 + 26-27-23$

Equal signs are added and the same signs are placed.

$a + b-c-d = + 53-50$

Different signs are subtracted and the sign of the major is placed:

$a + b-c-d = 53$

Finally we have to:

$a + b-c-d = 53$

Answer: $a + b-c-d = 53$

5 0

3 years ago

I need help please ASAP

ludmilkaskok [199]

Answer:

length of C'B' is 4 units

length of CB is 8 units

the larger hexagon is twice as large as the smaller; scale is 2:1

Step-by-step explanation:

5 0

3 years ago

Tina was asked to determine the possible dimensions of a given rectangle whose area is 12a4b3-18a6b3-72a7b3. Tina stated that th

Rufina [12.5K]

Answer:

Tina is correct

Step-by-step explanation:

Given

$Area = 12a^4b^3 - 18a^6b^3 - 72a^7b^3$

Required

State if $3a^4b^3(4-6a^2-24a^3)$ is a possible dimension

To do this, we simply expand $3a^4b^3(4-6a^2-24a^3)$

$3a^4b^3(4-6a^2-24a^3)$

$3a^4b^3 * 4-3a^4b^3 * 6a^2-3a^4b^3 * 24a^3$

$12a^4b^3 - 18a^{4+2}b^3 * -72a^{4+3}b^3$

$12a^4b^3 - 18a^{6}b^3 * -72a^{7}b^3$

By comparison, the result of the expansion

$12a^4b^3 - 18a^{6}b^3 * -72a^{7}b^3$

and the given expression

$Area = 12a^4b^3 - 18a^6b^3 - 72a^7b^3$

are the same.

Hence, Tina is correct

7 0

3 years ago

Solve this whoever solves more gets brandies and solve as may as u want NEED NOW

Aleksandr [31]

9)x-3=-1+4

x=-1+4+3

x=6

10)x+7=2x+5

x=2

11)10x+6=11x

x=6

12)18x+64=19x

x=64

13)17x=16x-24

x=-24

14)-8x+9x=-1+7

x=6

15)3x-2x+5=5

x+5=5

x=0

16)2w+10w=48

12w=48

w=4

17)8y+y=45

9y=45

y=5

18)16=10t-8t

16=2t

t=8

19)5x+12=8x

12=3x

x=4

20)24g-22=2g

g=1

ALL OF THEM DONE

8 0

3 years ago

5/8 divided by 1 and 1/3?

alexandr402 [8]

Answer:

15/32

Step-by-step explanation:

First convert 1 1/3 to improper fraction:

1 1/3 = 4/3

5/8 divided by 4/3 is same as...

$\frac{5}{8} * \frac{3}{4} = \frac{15}{32}$

3 0

3 years ago