Help me please. It’s for my geometry class and I don’t understand it.

Answer:

x = 10, y = 20

Step-by-step explanation:

Because two sides of the rightmost triangle are congruent, the base angles would follow suit. This means 5x - 10 = 3x + 10. Simplifying this we get:

2x = 20

x = 10

Next, in the other triangle, we can say the same thing, the base angles would be congruent. From this we can say that the other base angle is 4y. Using the exterior angle theorem, we can say that the two angles with x terms add to 4y. This means 3x + 10 + 5x - 10 is 4y. We already know x is 10, so substituting that in we get:

80 = 4y

y = 20

Answer:

x=1, y=6

Step-by-step explanation:

Answer:

24 - 27 = -3

and if you meant 2/4 - 2/7 in scientic notation:

2/4 - 2/7 = 3/14

HOPE THIS HELPS

Answer:

4.712 radians

Step-by-step explanation:

Answer:

-2

WORK

f(x) = 3x + 2

f(x) = -4

-4 = 3x + 2

-4 = 3x + 2

-2

-6 = 3x

-6/3 = -2

Answer:

Yes they are similar yes I think there is a ratio in which one is larger

Step-by-step explanation:

I hope this help

Answer:

180000

Step-by-step explanation:

Answer:

$64.50

Step-by-step explanation:

You can sum 7,5% of $150 which will be $161,25 minus 40% = Correct answer is D

It's given that WXYZ is a parallelogram. In a parallelogram, the adjacent angles sum up to 180°. Here, 2u - 2 & 3u + 12 together make 180° because they are adjacent angles.

2u - 2 + 3u + 12 = 180

2u + 3u - 2 + 12 = 180

5u + 10 = 180

5u = 170

u = 170/5

u = 34

_______

꧁✿ ᴿᴬᴵᴺᴮᴼᵂˢᴬᴸᵀ2222 ✬꧂

Answer:

1

Step-by-step explanation:

i think i could be wrong

Answer:

C. a = 3/2b

Step-by-step explanation:

7a - 2b = 5a + b

7a = 5a + 3b

7a - 5a = 3b

2a = 3b

a = 3/2b

Answer:

C. a = 3/2b

Step-by-step explanation:

7a - 2b = 5a + b

7a = 5a + 3b

7a - 5a = 3b

2a = 3b

a = 3/2b

$15000+$720 = $15720

由于 1 美元等于 6.4 人民币，我们可以将 15720 乘以 6.4 得到正确结果：

100568¥

本题已由中国数学会官方解答（现有会员：2人）

Answer:

Dont know

Dont know

Dont know

Dont know dont know dont knowwwwwwwwwwwwwww

Answer:

No

Step-by-step explanation:

It is not being multiplyed evenly on both sides with each other

Answer:

a) 75

b) 360 students

c) 56 ; 57 ; 58

d) 134 inches

e) 27°

Step-by-step explanation:

a)

[tex]5x = 375 \\ x = \frac{375}{5} \\ x = 75[/tex]

b)

[tex] \frac{x}{3} = 120 \\ x = 120 \times 3 \\ x = 360[/tex]

c)

[tex]x + x + 1 + x + 2 = 171 \\ 3x = 168 \\ x = 56 \\ (x + 1 = 57) \\ (x + 2 = 58)[/tex]

d)

[tex]2x + 2 \times 70 = 408 \\ 2x = 408 - 140 \\ x = \frac{268}{2} \\ x = 134[/tex]

e)

[tex]180 = 90 + 63 + x \\ x = 180 - 90 - 63 \\ x = 27[/tex]

C. Brooke finished in 115 minutes, so she was faster.

Answer:

Step-by-step explanation:

B took the test

Answer:

x=1.1

Step-by-step explanation:

5 (2x-1)=6

10x-5=6

10x=6+5

10x=11

x=11/10

x=1.1

Answer:

Exact form

[tex]x=\frac{11}{10}[/tex]

Decimal Form

x=1.1

Step-by-step explanation:

Answer:

algebraic equation

Step-by-step explanation:

.....

Answer:

Y=2x+2

Step-by-step explanation:

The slope-intercept equation of a line :

y = m x + c

Here

m  =  slope  c = y

-intercept

Therefore, the required equation is:

y = 2 xc

Putting the point  

( 1 , 4 )

in it as it lies on line, we get:

4 = 2 + c

Therefore

c = 2

So

y = 2 x + 2

is the required equation.

Answer:

When f(x) = 3x - 3 and g(x) = 2x - 3,

f(3) - g(5) + 12 = 11.

Step-by-step explanation:

Given:

f(x) = 3x - 3

g(x) = 2x - 3

First solve f(3).

f(x) = 3x - 3

Substitute input value.

f(3) = 3(3) - 3

Multiply 3 and 3.

f(3) = 9 - 3

Subtract 3 from 9.

f(3) = 6

Next, solve g(5).

g(x) = 2x - 3

Substitute input value.

g(5) = 2(5) - 3

Multiply 2 and 5.

g(5) = 10 - 3

Subtract 3 from 10.

g(5) = 7

Knowing these values, solve the expression.

f(3) - g(5) + 12

Replace functions with their values.

6 - 7 + 12

Subtract 7 from 6.

(-1) + 12

Add -1 and 12.

11.

Step-by-step explanation:

Did you mean :

sin(x + 75°) = sin(15°)

x + 75° = 15°

x = 15° - 75°

x = -60°

Answer:

I think its Factor

Step-by-step explanation: (x-4) (x+1)

And for the equation x=4,-1

Answer:

oh! thanks for points

but this is yr question or what????

Answer:

20

Step-by-step explanation:

because it would stay the same

Answer

4 pairs of jeans  by shirts instead

Step-by-step explanation:

Step-by-step explanation:

x = 7

3 + 4x = 5x - 4

3 + 4(7) = 5(7) - 4

3 + 28 = 35 - 4

31 = 31

Option C

The equations having the solutions 7 are 65−2x=6x+9 and 3+4x=5x−4. the correct options are A and C.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that we have to check all the equations having solution 7.

Checking option A,

65−2x=6x+9

65 - ( 2 x 7 ) = ( 6 x 7 ) + 9

51 = 51

Checking option B,

x²+1=8x−5

(7²) + 1 = ( 8 x 7 ) - 5

50≠ 51

Checking option C,

3 + 4x = 5x - 4

3 + 4(7) = 5(7) - 4

3 + 28 = 35 - 4

31 = 31

Checking option D,

9 - x = 14x

9 - 7 = 14 x 7

2≠ 98

Therefore, the equations having the solutions 7 are 65−2x=6x+9 and 3+4x=5x−4. the correct options are A and C.

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