Help with these questions please! Worth 40 points and brainliest!!! Explain your answers!!!!

Answer:

because AB//EF//CD, using thales theorem in ABEF, we have:

[tex]\frac{12}{21}=\frac{15}{y}\\\\<=>y=\frac{15.21}{12}=26.25[/tex]

we also have: CD//EF//GH => using thales theorem in CDGH:

[tex]\frac{21}{x}=\frac{y}{10}\\\\<=>x=\frac{210}{y}=\frac{210}{26.25}=8[/tex]

with y = 26.25 => AB = 26.25 - 14 = 12.25

        x = 8 => GH = 5.8 - 3 = 40 - 3 = 37

+) the perimeter of ABHG = AB + AC + CE + GE + GH + HF + DF + BD

= 12.25 + 12 + 21 + 8 + 37 + 10 + 26.25 + 15

= 141.5

Step-by-step explanation:

Answer:

22

Step-by-step explanation:

f (5)=3 (5)+7

f (5)=15+7

f (5)=22

Answer:

1.2 * 10^3

Step-by-step explanation:

3.12 * 10^8

=========

2.6 * 10^5

Start by doing 3.12 / 1.6 = 1.2 and that is the correct number of sig digs.

Now get the power on the 10. When dividing, the powers subtract.

10^(8 - 5)

10^ 3

The answer is 1.2 * 10^3

Answer:

The breadth of rectangular carpet is 1.8 m

Step-by-step explanation:

23.4/13=1.8  sorry if this is not enough explanation

Answer:

from left to right

-8

-9

-10

-11

Answer:

[tex] m\angle A = 79\degree[/tex]

[tex] m\angle B = 112\degree[/tex]

Step-by-step explanation:

ABCD is a cyclic Quadrilateral.

Opposite angles of a cyclic quadrilateral are supplementary.

Therefore,

[tex] m\angle A + m\angle C = 180\degree[/tex]

[tex] m\angle A + 101\degree = 180\degree[/tex]

[tex] m\angle A = 180\degree-101\degree[/tex]

[tex] \red{\bold {m\angle A = 79\degree}} [/tex]

[tex] m\angle B + m\angle D = 180\degree[/tex]

[tex] m\angle B + 68\degree = 180\degree[/tex]

[tex] m\angle B = 180\degree-68\degree[/tex]

[tex] \purple {\bold {m\angle B = 112\degree}} [/tex]

Answer:

$515.40

Step-by-step explanation:

Dan pays $42.95 per month for his cell phone. There are 12 months.

m=months

($42.95m) (12) = $515.40

Answer:

4.5

Step-by-step explanation:

4n - 6 = 12

add +6 to both sides

4n = 18

divide by 4

4/4n = 18/4

n = 4.5

Answer:

l = 33 feet

Step-by-step explanation:

Let length be l.

Width, b = 2l-1

Perimeter of the room, P = 196

We know that the perimeter of the rectangle is given by :

P = 2(l+b)

196=2(l+2l-1)

98=3l-1

Adding 1 both sides.

98+1=3l-1+1

3l=99

l = 33 feet

So, the length of the room is 33 feet.

Answer: divide by 100 then times result by x

Step-by-step explanation: hope it helps

thx for points gl :)

Answer:

A. 25

B. 0.64

Step-by-step explanation:

Sorry there is no Step-by-Step explanation to this equation as I have generated an answer from my system.

--

Use: Division.

Use: PEMDAS

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#LearningFromHome

Answer:

-36% decrease

Step-by-step explanation:

320-500=-180

-180/500=.36*100=-36%

Answer:

b^2

Step-by-step explanation:

Answer:

40%

Step-by-step explanation:

So add 18 and 12 makes 30. Then divide 30 with a common factor say 6. so there is 5 6s in 30 so each 6 is equivalent to 20 percent there are 2 6s in 12 so it is 40 percent

9514 1404 393

Answer:

  11

Step-by-step explanation:

The future value of the account is given by the formula ...

  A = P(1 +r/12)^(12t) . . . . principal P invested at rate r for t years

Solving for t, we find ...

  A/P = (1 +r/12)^(12t) . . . . . . . . . . . divide by P

  log(A/P) = 12t·log(1 +r/12) . . . . . . take logs

Divide by the coefficient of t, then fill in the numbers.

  t = log(A/P)/(12·log(1 +r/12)) = log(202800/93000)/(12·log(1 +.068/12))

  t ≈ 11.497

It will take about 11 years for the account balance to reach the desired amount.

Answer:

1. 64

2. 7

3. 1, 2, 4, 8, 16

4.

5. 36

6. 5

7. 13

Answer:

in most states sales tax is .07 cents for every dollar you spend. for food it is different

Step-by-step explanation:

9514 1404 393

Answer:

  put the value into the equation and do the arithmetic

Step-by-step explanation:

As with any checking, you put the value where the variable is and do the arithmetic.

  7(2x +5) = 11x -9 -x

For x = -11

  7(2(-11) +5) = 11(-11) -9 -(-11)

  7(-22 +5) = -121 -9 +11

  7(-17) = -119

  -119 = -119

The value x = -11 makes the equation true.

Answer: 24

Step-by-step explanation:

Number of flower pots = 36

Since she plants daisies in 2/3 of her flower pots, the number of flower pots that Mary plant daisies will be:

= 2/3 × 36

= 2 × 12

= 24

She plants daises in 24 flower pots

Answer:

1164.29

Step-by-step explanation:

divide 326 by 28 then times by 100 to get 100% of the number

Its B then A

Step-by-step explanation:

Answer:

You helped me so it's B and A mark me brainliest please

Step-by-step explanation:

Answer:

no.

Step-by-step explanation:

Answer:

3. There is enough information to prove that ΔABC and ΔDEF are congruent using the Angle-Side-Angle (ASA) congruency theorem

4. More information is required to prove that ΔGFH and ΔJKL are congruent

5. ∠B ≅ ∠Y

6. ∠A ≅ ∠X

Step-by-step explanation:

3. In triangle ΔABC, and triangle ΔDEF, we have;

Corresponding angles ∠A and ∠D are congruent

Corresponding angles ∠C and ∠F are congruent

Corresponding side in between the given angles [tex]\overline{AC}[/tex] and [tex]\overline{DF}[/tex] are congruent

Therefore ΔABC is congruent to ΔDEF by the Angle-Side-Angle (ASA) rule of congruency

4. The corresponding angles ∠F and ∠J in triangle ΔGFH and triangle ΔJKL are congruent as well as the corresponding adjacent sides to the given angles and the corresponding opposite sides to the given angles are congruent, however, there is not enough information to prove that the two triangles are congruent

The included angles, ∠H and ∠L between the sides congruent corresponding sides should be congruent or the other adjacent sides [tex]\overline{FG}[/tex] and [tex]\overline{JK}[/tex] to the congruent angles ∠F and ∠J should be congruent for the triangles ΔGFH and ΔJKL to be congruent

5. Given [tex]\overline{AC}[/tex] ≅ [tex]\overline{XZ}[/tex], ∠C ≅ ∠Z, using the Angle-Angle-Side, AAS, rule of congruency, we have;

The angles adjacent to ∠C and ∠Z, and opposite to [tex]\overline{AC}[/tex] and [tex]\overline{XZ}[/tex], which are B and ∠Y are congruent

Therefore, we have;

∠B ≅ ∠Y using AAS rule of congruency

6. Using Angle-Side-Angle, ASA, rule, given;

[tex]\overline{AC}[/tex] ≅ [tex]\overline{XZ}[/tex], ∠C ≅ ∠Z, then the angles on the other side of [tex]\overline{AC}[/tex] and [tex]\overline{XZ}[/tex] which are ∠A and ∠X should be congruent, we have;

∠A ≅ ∠X

Answer:

A. y=2x

Step-by-step explanation:

m=rise/run

rise=2

run=1

2/1=2

and that was the only equation with a slope of 2

Answer:

0 degrees

Step-by-step explanation:

-24 + 24 = 0

Answer:

Wouldn't the answer be 0 degrees Farenheit?

Step-by-step explanation:

-24 + (+24)=0

Answer:

The first step would be to subtract the two equations.