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3 years ago

Please help i will give brainliest

Mathematics

1 answer:

VARVARA [1.3K]3 years ago

6 0

$\text{Given that,}\\\\\text{Width,}~ w = 3x-2\\\\\text{Length,}~ l = x+5 \\\\\\\text{Perimeter} =2(w+l) = 2(3x-2+x+5) = 2(4x +3) = 8x +6$

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What is the value of x

attashe74 [19]

The value of X in this question is 46

4 0

3 years ago

Read 2 more answers

Click on photo! Show all work needing help ASAP

telo118 [61]

-x-y=-9

-3x-2y=-28

eliminate the x first

multiply the first system of equations by 3

(3)(-x)=-3x

(3)(-y)=-3y

(3)(-9)=-27

-3x-3y=-27

-3x-2y=-28

eliminate the systems of equations by subtracting

-3x--3x-3y--2y=-27--28

-3x+3x-3y+2y=-27+28

-y=1

multiply -1 for -y=-1 to get positive y

(-y)(-1)=(1)(-1)

y=-1

substitution method by using y=-1 into one of the system of equations

-x-y=-9

-x--1=-9

-x+1=-9

move +1 to the other side

sign changes from +1 to -1

-x+1-1=-9-1

-x=-10

multiply by -1 for -x=-10 to get positive x

(-x)(-1)=(-10)(-1)

x=10

answer:

x=10, y=-1

7 0

3 years ago

BEST GETS BRAINLIST! 16 POINTS! Help please, attached below, please do a step by step of The SohCahToa method. I help to find th

fenix001 [56]

Answer:

Perimeter of ΔABC = 16.46 units

Step-by-step explanation:

By applying cosine rule (CAH) in the given triangle ADB,

cos(∠BAC) = $\frac{\text{Adjacent side}}{\text{Hypotenuse}}$

cos(55°) = $\frac{3}{AB}$

AB = 5.23 units

Since, ΔABC is an isosceles triangle

AB = BC = 5.23 units

AD = DC = 3 units [Perpendicular drawn from a vertex of an isosceles triangle is a perpendicular bisector of the opposite side]

Therefore, AC = AD + DC = 6 units

Now perimeter of ΔABC = AB + BC + AC

= 5.23 + 5.23 + 6

= 16.46 units

6 0

3 years ago

Use the scale factor to determine the height of the real house. Round you answer to the nearest whole number.

Elanso [62]

Answer:

21.25ft?

Step-by-step explanation:

Make the ratio equal to 1

so 2÷2 = 1

and 5÷2 = 2.5

so the ratio is 1in :2.5 ft

so if the drawing is 8.5 in

then in (ft) it is 8.5×2.5=21.25ft

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3 years ago

What is the LCM of 5, 13, and 10? 50 65 130 650

DanielleElmas [232]

Answer:

130

Step-by-step explanation:

13: 13, 26, 39, 52, 65, 78, 91, 104, 117, 130

10: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130

5: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130

I am joyous to assist you anytime.

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3 years ago