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3 years ago

(913 – 892 + 3) - (413 + 9x + 8) Simplify the expression

Mathematics

2 answers:

victus00 [196]3 years ago

5 0

(28+3)-(421+9x)
31-421+9x
-390+9x

Natasha_Volkova [10]3 years ago

3 0

Answer:

-397 -9x

Step-by-step explanation:

(913-892 +3)

(21+3) - (421+9x)

(24) -421 -9x

-397 -9x

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Find the area of each figure below

Ugo [173]

Answer:

25. $27a^{3}b^{2}$

26. $3\pi x^{3}y$

Step-by-step explanation:

For 25:

$A = \frac{a+b}{2} h$ (area of a trapezoid)

$A=\frac{11a^{2}b+7a^{2}b}{2} *3ab$ (substitute terms)

$= \frac{18a^{2}b}{2}*3ab$ (collect like terms)

$= 9a^{2}b*3ab$ (reduce the fraction by crossing out 2)

$= 27a^{3}b^{2}$ (calculate)

For 26:

$A=\pi r^{2}$ (equation of area of a circle)

$A=\pi (3x^{3} y)^{2}$ (enter the radius)

$= 3\pi x^{3} y$ (communtative property to reorder the terms)

7 0

3 years ago

How do i turn -24/5 into a decimal answers plz thxs :)

kow [346]

Answer:

-4.8

Step-by-step explanation:

-24/5 = (-24) $\div$ 5

= -4.8

7 0

3 years ago

Read 2 more answers

A bag of marbles has 3 red, 4 blue, and 5 white marbles in it. What is the probability of reaching in and selecting a blue marbl

goblinko [34]

Answer:

$P(B)=\frac{1}{3}$

Step-by-step explanation:

The number of red marbles in the bag is; $n(R)=3$ .

The number of blue marbles in the bag is; $n(B)=4$ .

The number of white marbles in the bag is; $n(W)=5$ .

The total number of marbles in the bag is: $n(S)=3+4+5=12$ .

The probability of selecting a blue marble is $P(B)=\frac{n(B)}{n(S)}$

We substitute the given information to obtain:

$P(B)=\frac{4}{12}$

We simplify to obtain:

$P(B)=\frac{1}{3}$

4 0

3 years ago

A car wash detailed 256 cars in 8 hours. At what rate did the car wash detail

Minchanka [31]

32 cars per hour. If you do 256 divided by 8 you get 32.

Hope this helped!

4 0

3 years ago

The sum of two consecutive integers is 329

saw5 [17]

A = first integer
a + 1 = 2nd integer

a + a + 1 = 329
2a + 1 = 329
2a = 329 - 1
2a = 328
a = 164

a + 1 = 164 + 1 = 165

so ur 2 consecutive integers are : 164 and 165

3 0

3 years ago