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3 years ago

HURRY ASAP I NEED THIS RIGHT NOW

Mathematics

2 answers:

Yuri [45]3 years ago

8 0

Answer:

5(x+4) =30

-multiply 5 and x then multiply 5 and 4

- That gives you 5x+20=30

-subtract 20 from 30 and positive 20 that gives you 5x=30

-divide 5x by 5 that cancels each other out

-divide 30 by 5 that gives you x=6

-4(3x+2)=32

-multiply -4 by 3x that gives you -12x

-then multiply -4 by positive 2 that gives you -8

-now you have -12x-8=32

-add both sides by 8

- -12x=40

- divide 12x by 12 that cancels each other out

- divide 40 by 12

- that gives you 3.3 (repeating)

1/2(9x+15) =20

-multiply 1/2 by 9x that gives you 4.5x

-multiply 1/2 times 15 that gives you 7.5

- 4.5x+7.5=20

- subtract both sides by 7.5

-4.5x=20

- divide both sides by 4.5

- 4.5x divided by 4.5 cancels out

- 20 divided by 4.5 gives you 4.4 (repeating)

-4(1.5-x) =9

-multiply -4 by 1.5 that gives you -2.6

- multiply -4 by -x that gives you 4

- -2.6+4=9

- subtract both sides by 4

- 2.6x= 5

- divide 2.6x by 2.6 that cancels each other out

- divide 5 by 2.6 that gives you 1.9

(sorry I took so long Hope this helps!)

brilliants [131]3 years ago

3 0

Answer:

x=3.75

Step-by-step explanation:

-4(1.5-x)=9

first distribute

6-4x=9

then isolate the variable

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Find The Perimeter Of The Shaded Region 90 ft 58 ft 24 ft 38 ft

CaHeK987 [17]

L = 14 - 6 = 8
w = 15 - 4 = 11

P of shaded = 2(8+9) = 2 (19) = 38

answer
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3 years ago

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In the figure, triangle CAE is an enlargement of triangle CBD with scale factor of 4/3. The area of the smaller triangle is 9cm2

balandron [24]

Answer:

16 cm^2

Step-by-step explanation:

Given

$\triangle CAE$ -- Bigger Triangle

$\triangle CBD$ -- Smaller Triangle

$k = \frac{4}{3}$ --- Scale factor

Area of CBD = 9

Required

Determine the area of CAE

The area of triangle CBD is:

$A_1 = \frac{1}{2}bh$

$\frac{1}{2}bh = 9$

The area of CAE is:

$A_2 = \frac{1}{2}BH$

Where:

$B = \frac{4}{3}b$ and

$H = \frac{4}{3}h$

The above values is the dimension of the larger triangle (after dilation).

So, we have:

$A_2 = \frac{1}{2}*\frac{4}{3}b * \frac{4}{3} * h$

$A_2 = \frac{1}{2}*\frac{4}{3} * \frac{4}{3} *b* h$

$A_2 = \frac{1}{2}*\frac{16}{9} *b* h$

Re-order

$A_2 = \frac{16}{9}*\frac{1}{2}* b* h$

$A_2 = \frac{16}{9}*\frac{1}{2}bh$

Recall that:

$\frac{1}{2}bh = 9$

$A_2 = \frac{16}{9}*9$

$A_2 = 16$

Hence, the area is 16 cm^2

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3 years ago

Which expression is equivalent to 4 sqrt 16x^11y^8/ 81x^7y^6 Assume x> 0 and y=0

Romashka [77]

One interpretation of your intent would be as follows:

16x^11y^8

Find 4 √ [-----------------]. Is that what you meant?

81x^7y^6

4*x^5*√x*y^4

If so, then the correct result would be 4 ---------------------

9*x^3*√x*y^3

and this could be reduced to:

4*x^5 * y^4 * √(x) 4*x^2*y

4 --------------------------- = -------------

9*x^3*y^3 √(x) 9

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3 years ago

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During the early part of the 1994 baseball season, many sports fans and baseball players noticed that the number of home runs be

natta225 [31]

Complete Question

The picture of the stem plot National and American League is shown on the first uploaded image

Answer:

The value is $\= x = 50.14$

Step-by-step explanation:

From the question we are told that

The stem plot for National League is

$2\ \ \ \ \ 9\\3\ \ \ \ \ 1 \\4\ \ \ \ \ 2\ 6\ 7\ 8\ 8\\5 \ \ \ \ \ 3\ 5\ 5\ 5\\6 \ \ \ \ \ 3\ 3\ 7\\7$

The sample size is n = 14

Generally the stem plot is interpreted in this manner

The numbers on the first column represents the tens of a two digit number while the second column holds the possible unit number the tens in the first column can be combined with

for example 4th row

5 3 5 5 5

is equivalent to

53 55 55 55

Generally the mean for the national league is mathematically represented as

$\= x = \frac{29 + 31 + \cdots + 67}{14}$

=> $\= x = \frac{702}{14}$

=> $\= x = 50.14$

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3 years ago

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Scilla [17]

Answer:A

Step-by-step explanation: because it’s an even number

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4 years ago