Te diagonals of Quadrilateral JKLM intersect at A. If KL ≅ J M , JK≅ L M and KA ≅ M A , which additional statement shows that JKLM is a rhombus?
Group of answer choices
JA = LA

JL ⊥ K M

m
KA = KJ

Answer:

The last one

Step-by-step explanation:

Answer:

im doing that too </3 plz

Step-by-step explanation:

i think the question is not correct write it again or attach the pic ic

The mean of a data set is the sum of all data elements divided by its count.

The mean weight of the 19 girls is 33.4 kg

Let

[tex]b \to[/tex] boys

[tex]g \to[/tex] girls

[tex]n \to[/tex] the total population

So:

[tex]b = 11[/tex]

[tex]\bar x_b = 31.9[/tex]

[tex]g = 19[/tex]

[tex]n = 30[/tex]

[tex]\bar x = 32.85[/tex]

The mean of all students is calculated as follows:

[tex]\bar x = \frac{\sum x}{n}[/tex]

So, we have:

[tex]\bar x = \frac{\bar x_b \times b + \bar x_g \times g}{n}[/tex]

Substitute known values

[tex]32.85 = \frac{31.9 \times 11 + \bar x_g \times 19}{30}[/tex]

[tex]32.85 = \frac{350.9 + \bar x_g \times 19}{30}[/tex]

Multiply through by 30

[tex]30 \times 32.85 = 350.9 + \bar x_g \times 19[/tex]

[tex]985.5 = 350.9 + \bar x_g \times 19[/tex]

Collect like terms

[tex]985.5 -350.9 = \bar x_g \times 19[/tex]

[tex]634.6 = \bar x_g \times 19[/tex]

Divide through by 19

[tex]33.4 = \bar x_g[/tex]

[tex]\bar x_g = 33.4[/tex]

Hence, the mean weight of the girls is 33.4 kg

Read more about mean at:

https://brainly.com/question/2018505

Answer: 50%

Step-by-step explanation:

In 2010 the percentage of fatal accidents was 16%.

This is 34% less than it was in 2000 because the text says that the 2010 percentage was 16% after being reduced by 34% from 2010.

The percentage of fatal accidents in 2000 is therefore:

= 2010 fatal percentage + Percentage reduced from 2000

= 16% + 34%

= 50%

Answer: They had 24 items for the sale.

Step-by-step explanation:

Given: In baking sale,

18 different people made 2 dozen items for the sale.

We know that,

1 dozen = 12 items

2 dozens = 2 x 12 items

i.e. 2 dozens = 24 items

Therefore, they will have 24 items for sales if they made 2 dozens items.

Hence, they had 24 items for the sale.

Answer:

24 items for the sale.

Step-by-step explanation:

I did the worksheet

Answer:

Step-by-step explanation:

common factor of 2a² and 10ab= 2a

Answer:

3,400 g

Step-by-step explanation:

The computation of the grams of trail he left is shown below:

As we know that

1 kg = 1000g

So for 12 kg it is = 12000 g

And, his family ate 8,600 g mix on the hiking trip

So, the trial mix did he have left is

= 12,000 g - 8,600 g

= 3,400 g

Answer:

Step-by-step explanation:

7 hr/3 pumps

So first we want to find the unit rate which would be...

5.25 hr/1 pump

Now that we found the unit rate we are going to multiply it by 2 because there are 2 pumps...

5.25*2=10.5

So our answer is 10.5 hr/ 2 pumps

                                                                                    YOUR WELCOME!

                                                                                     BRAINLIEST?????

Answer:

Ok I will help you

Answer:

27 /35

Step-by-step explanation:

Para sumar fracciones, busque el LCD y luego combinar.

Answer:

x=-2

Step-by-step explanation:

2 = 3x+14/4

2x4 = 4x4    4 cancels

8 = 3x+14

8-14 = 14-14    14 cancels

-6 = 3x

-6/3 = 3/3   3 cancels and you're left with x

-2=x

Answer:

If the shipping is for all books then the total cost is 164.95

Answer:

tienes que hacer cuadritos

Answer:

it is 3mm i had the test

Step-by-step explanation:

edge 2021

Answer:

3mm! -w-

Step-by-step explanation:

Answer:

Answer is 1/216.

Step-by-step explanation:

Answer:

b is the right answer

Step-by-step explanation:

Answer:

18a^7

Step-by-step explanation:

Answer:

(-2,-14), (0, -8), (2, -2), (4, 4)

Step-by-step explanation:

Plug the x-value into the equation to get the corresponding y-value.

Example: Want the y-value for -2?

y = 3(-2) - 8

y = -6 - 8

y = -14

y-value for 2?

y = 3(2) - 8

y = 6 - 8

y = -2

Repeat that for all values.

Hope this helped!

Answer:

Your answer is.......

x^3 + 2x^2 + 4x + 8=0 Note.. if x=-2 then whole equation is 0

So, (x+2) is one factor.

x^3 + 2x^2 + 4x + 8

=x^2(x+2)+4(x+2)

(x+2)(x^2+4)

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Answer:8n-4

Step-by-step explanation:

Answer:

n=1/2

Step-by-step explanation:

Step1: 2n-n-4+7n

Step2: 8n-4

Step3: 8n=4

Step4: n=4/8

Step5: n=1/2

Answer:

16.67% less

or

she only made 83% of her anticipated $18,000

Step-by-step explanation:

3000/18000 = 0.1666 or 16.67% less

15000/18000 = 0.8333 or 83%

Answer:

A= (1/2)(X)(2X)

(1/2)(2X^2)

= (2X^2)/2

Answer:

yes it is true answer

Step-by-step explanation:

(-3,3)

Answer:

$17.55

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 3%/100 = 0.03 per year,

then, solving our equation

I = 390 × 0.03 × 1.5 = 17.55

I = $ 17.55

The simple interest accumulated

on a principal of $ 390.00

at a rate of 3% per year

for 1.5 years is $ 17.55.

Answer:

Step-by-step explanation:

[tex]\frac{6}{\frac{3}{4}}\\ \\ 6\left(\frac{4}{3}\right)\\ \\ 8\ pieces[/tex]

Answer:

4

9/8

Step-by-step explanation:

Given the fraction a/b, the reciprocal is expressed as 1/(a/b) = b/a

For 1/4;

1/4

= 1÷1/4

= 1 * 4/1

= 4

Hence the reciprocal is 4

b) 8/9

= 1 ÷ 8/9

= 1 * 9/8

= 9/8

Hence the reciprocal of 8/9 is 9/8

Answer:

29

Step-by-step explanation:

Answer: Depends on the number of grades

Step-by-step explanation:

School has up to 6th grade: 15

School has up to 7th grade: 12

School has up to 8th grade: 11

School has up to 9th grade: 10

School has up to 10th grade: 9

Need more grades? Comment please

Answer →→→→ 12

Hope this helps you

God bless