PLS HELPPPP with my IXL

Answer:

The slope of the perpendicular line is 1/4

A line parallel to this will have the same gradient of -4.

Answer:

15.59.

Step-by-step explanation:

The altitude of equilateral triangle bisects the base

So 1/2 base = 3.

Altitude of the triangle is found from Pythagoras theorem:

= sqrt(6^2 - 3^2)

= sqrt27

Area = 1/2 base * altitude

=  3 * sqrt27

= 15.59

Answer:

Its the first one

Step-by-step explanation:

Answer:

x=1, y=-6. (1, -6).

Step-by-step explanation:

y=-6x

-2x-7y=40

------------------

-2x-7(-6x)=40

-2x+42x=40

40x=40

x=40/40

x=1

y=-6(1)=-6

Answer:

80

Step-by-step explanation:

360 - (110+80+90) = 80

Answer:

80°

Step-by-step explanation:

360-110-90-80

Angles outside a circle add up to 360°

Answer:

x2(x−8)(x−7)

Step-by-step explanation:

Factor

Factor x2 out of x4−15x3+56x2.

x2(x2−15x+56)

x2(x−8)(x−7)

Answer:

5h+11

Step-by-step explanation:

You add the like terms so 1h+5h-1h= 5h. Then you just add 11 into the equation

Answer:

-54 an

Step-by-step explanation:

Answer:

I'm guessing when it says "over the y-axis", it means to reflect it over the y-axis.

In that case, you would graph the points of the triangle, then flip them over the y-axis (change the x-values).

ex. R(-5,3)-R`(5,3)

Answer:

-15

Step-by-step explanation:

We have the expression 3(2p - 5) - 6p and are asked to simplify.

Let's distribute, which is to multiply a number that is outside of a parenthesis bracket by the numbers inside the parenthesis.

3(2p - 5) - 6p

(3(2p) - 3(5)) - 6p

6p - 15 - 6p

Since you can only do changes to like terms and 15 and 6p are two different terms, we do 6p - 6p.

6p - 6p

0

Leaving us with -15.

Answer:

-15

Step-by-step explanation:

Simplify each term.

6p - 15 - 6p

Combine the opposite terms:

Subtract 6p from 6p

0 - 15

Subtract 0 from 15

-15

good luck, hope this helps :)

Answer:

[tex]x = \frac{2}{3}[/tex]

Step-by-step explanation:

Given

See attachment for triangles

Required

Find x

First, calculate tan A

From the first triangle:

[tex]tan\ A= \frac{x + 2}{x}[/tex]

Next, calculate tan B

From the second triangle:

[tex]tan\ B= \frac{4}{3x-1}[/tex]

[tex]tan\ A = tan\ B[/tex]

So, we have:

[tex]\frac{x + 2}{x}= \frac{4}{3x-1}[/tex]

Cross Multiply

[tex](x + 2)(3x - 1) = 4 * x[/tex]

Open brackets

[tex]3x^2 + 6x - x - 2 = 4x[/tex]

[tex]3x^2 + 5x - 2 = 4x[/tex]

Collect Like Terms

[tex]3x^2 + 5x - 4x- 2 =0[/tex]

[tex]3x^2 + x- 2 =0[/tex]

Expand

[tex]3x^2 + 3x - 2x- 2 =0[/tex]

Factorize:

[tex]3x(x + 1) - 2(x+ 1) =0[/tex]

Factor out x + 1

[tex](3x - 2)(x +1) = 0[/tex]

Split:

[tex]3x - 2 = 0\ or\ x + 1 = 0[/tex]

[tex]x = \frac{2}{3}\ or\ x = -1[/tex]

x can not be negative, so:

[tex]x = \frac{2}{3}[/tex]

Answer:

A sampling distribution of the sample proportion with n = 20 and p = 0.8

Step-by-step explanation:

We are given that

The probability of tails of a weighted coin, p=0.8

n=20

We have to find the type of distribution is simulated if this procedure repeated 75 times .

Random variable is a proportion of number of tails therefore, type of distribution is   sampling distribution of the sample proportion.

We have n=20 and p=0.8

Hence, we can say that type of distribution is simulated is given by

A sampling distribution of the sample proportion with n = 20 and p = 0.8

Answer:

I chose answer D. A binomial distribution with n=20 and p=0.8, No clue if correct or not

Step-by-step explanation:

Answer:

3.333333....

Step-by-step explanation:

Answer:

yellow

Step-by-step explanation:

the answers 42

do 129-3 then divide 127/3 to get x

Answer:

Angel L = 52°

Step-by-step explanation:

In ∆ JKL,

J = 8x + 6°

K = 2x + 2°

L = 4x+ 4°

L =?

Let's solve this question with the help of Angle Sum Property of a Triangle (ASPT).

We know that all angles in a triangle add up to 180°.

180 = ∆JKL

180 = J + K + L

180 = (8x + 6) + (2x + 2) + (4x + 4)

180 = 8x + 6 + 2x + 2 + 4x + 4

180 = 8x + 2x + 4x + 6 + 2 + 4

180 = 14x + 12

14x = 180 - 12

14x = 168

x = 168/14

x = 12°.

Now, L° = 4x + 4

= 4(12) + 4

= 48 + 4

= 52°.

Answer:

Step-by-step explanation:

if the container holds 25 lBS, that represents 100%

if there are 12.5 lbs now in the container, that represents 50%

Answer:

720 miles

Step-by-step explanation:

let 'm' = # miles you can travel for $340

340 = 160 + .25m

180 = .25m

m = 180/.25

m = 720

Answer: The weight = 33.75kg

Step-by-step explanation:

Given that  

one cubic metre of ice weight is 80 kg

which is mathematically written as

1m³ of ice = 80 kg

Therefore 75 cm length of  cubical  block of ice =???

First

changing  75 cm to meters, we have  75/100 = 0.75 m

Volume of block = l³= 0.75³ = 0.421875m³

Given that

1m³ = 80kg

0.421875m³=  0.421875 x 80

= 33.75kg

Answer:

80

Step-by-step explanation:

(27-15):15*100 =

(27:15-1)*100 =

180-100 = 80

I hope this helped!

Sincerely,

Rekifromsk8theinfinity

:D

Answer:

66.66666667 percent

Step-by-step explanation:

In this case we have a positive change (increase) of 66.66666667 percent because the new value is greater than the old value. Using this tool you can find the percent increase for any value.

Answer: 4:1

Step-by-step explanation: it would start at 8:2 and the lowest terms it can go are 4:1

Answer:

5 : 4

Step-by-step explanation:

1. Find the total number of games

8 + 2 = 10

2. Create a ratio for number games vs. games won

10 : 8

3. Divide both numbers by 2

5 : 4

Answer:

3x-12y

Step-by-step explanation:

4x-9y+7x-3y-8x

group like terms

4x+7x-8x

11x-8x

=3x

-9y-3y

=-12y

combine terms

==3x-12y

Hope this helps! :)

Answer:

Can you show more of the question?

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Basically, division. divide 85.60 by 4 in order to get each hour.

Answer:

⦣ACB = 76º

Step-by-step explanation:

⦣DCB = ⦣BAD because one of the rules of a parallelogram is that opposite angles are equal

⦣BAD = 76º so ⦣ACB = 76º

Answer:1/4

Step-by-step explanation:

1/4x3=3/4

1-3/4=1/4

Answer:

B. 1/4

Step-by-step explanation:

The cake is 1 whole or 4/4 total. If 3 people ate 1/4 then 3/4 of the cake was eaten. This leaves only 1/4 of cake left.

Hope it helps!