Suppose ABCD is a rhombus with AB=12 inches. The midpoints of its sides are joined to form a quadrilateral.
What is the length of a diagonal of this quadrilateral?
(please give an explanation)

Answer:

21 is the correct answer

it's just a logical question

just do multiply with 2 and add 1

answer will come

as above:4 is given

4×2+1

8+1

9

second:12

12×2+1

24+1

25

Answer:C

Step-by-step explanation:because I did it before

Answer:

A. 9.75 + 21.50 ,,,symbol,,, 11.40 + 10.95

Step-by-step explanation:

I know it because my teacher told me that i was the only one that got it correct.

Answer:

$1506.75 earned by working 21 hours of the month

Step-by-step explanation:

$71.75 ($ per hour) x 21 (hours) = $1506.75 (total earned for working 21 hours)

I hope this helps :)

Answer:

(5, 3)

Step-by-step explanation:

Answer:

27 cm.

Step-by-step explanation:

Area = base * height

45 = 7.5 * h

h = 45/7.5

= 6 cm.

So the perimeter

= 2(base + h)

= 2(7.5 + 6)

= 27 cm.

Answer:

Step-by-step explanation:

[tex]s = slant[/tex]

[tex]h = \sqrt{s^{2} } - ( \frac{a}{2} ) ^{2}[/tex]

[tex]h = \sqrt{5^{2} } - ( \frac{6}{2} ) ^{2}[/tex]

[tex]h = \sqrt{5^{2} } - 3^{2}[/tex]

[tex]h=[/tex] 4

Answer:

Slope: -2

y-intercept: -3 or (0, -3)

Step-by-step explanation:

y = mx + b

    m = slope

    b = y-intercept

6x+3y= -9

3y = -6x - 9

y = -2x - 3

Answer:

The correct answer is yes, we can draw an isosceles triangle with only one 40° angle. NO this is not the only possibility.

Step-by-step explanation:

plz mark brainliest

Answer:

84cm^2

Step-by-step explanation:

P=2l+2w

We are given,

P=40cm

l=2w+2

Plug these into the first formula and solve for the dimensions,

length and width, of the rectangle:

40=2(2w+2)+2w              Simplify

40=4w+4+2w

40=6w+4

36=6w

6=w OR the width is 6cm, therefore,

the length is

l=2(6)+2

l=14cm

To calculate the area of a rectangle, A=lw,

plug the length,14cm, and the width, 6cm, into this formula

A=(14)(6)

A=84cm2 OR the area of the rectangle is 84cm^2

Answer:

4+6

answer is 10

simple.

Answer:

1

Step-by-step explanation:

Answer:

175/48 or 3 31/48

Step-by-step explanation:

7/8 = 7/8

4 1/6 = 25/6

7/8 x 25/6 = 175/48

Answer:

This is false

Step-by-step explanation:

A natural number is an integer greater than 0. Natural numbers begin at 1 and increment to infinity: 1, 2, 3, 4, 5, etc.

Answer:

arrow A

Step-by-step explanation:

6 out of 30 or 1/5 which is arrow A

Answer:

8.85

Step-by-step explanation:

You can rewrite 8.8 as 8.80. You can rewrite 8.9 as 8.90. Halfway between 8.80 and 8.90 is 8.85.

Hope this helps! Thanks for brainliest! :D

Answer:

8.85

Step-by-step explanation:

Go to the hundreths place

Answer:

5 3/7 or 37/7

Answer:

As below

Step-by-step explanation:

we want to know  how long it took to fly  so make two equations and set them equal to each other using the variable t

so, use  d = r*t   where d= distance , r= rate ( speed) and t = time  

w= wind velocity (speed with direction)

1500=(w+550)*t

1000=(-w+550)*t

now make both equations with respect to t

1500/(w+550) = t

1000/(-w+550) = t

since they are both equal to t,  where t is the same amount of flying time, set the two equations equal to each other

1500/(w+550) = 1000/(-w+550)

now solve for w

1500w + 825,000 = -1000w+550,000

2500w= -275,000

w = - 110

the wind speed is 110 opposite of the planes direction but also, if the plane flies in the other direction with it.  

wind velocity (velocity is speed with a direction )   is 110 MPH

they are asking for speed, b/c we don't know anything about direction... that is which direction is the plane headed during it's flight therefore we also can't say anything about the   wind direction either.  :|

Answer:

100cm

Step-by-step explanation:

I hope this help:)

Answer:

35 square cm

Step-by-step explanation:

Square area: 5 cm x 5 cm = 25 square cm.

Triangle area: 4 cm x 5 cm / 2 = 10 square cm.

25+10=35 square cm.

Answer:

6(7a + 9b) = 3(14a + 18b)

Step-by-step explanation:

We need to find the equivalent expression for the given expression i.e. 6(7a + 9b).

We can use the distributive property here such that,

a(b+c) = ab + ac

We have, a = 6, b = 7 and c = 9

6(7a + 9b) = 6(7a) + 6(9b)

= 42a + 54b

or taking 3 common from the above expression.

= 3(14a+18b)

Hence, the correct option is (a).

Răspuns:

7/5;

2 întreg 5/12

Explicație pas cu pas:

6/7 × (2 numere întregi și 5 / 6-1 numere întregi și 1/5)

6/7 * (2 5/6 - 1 1/5)

6/7 * (17/6 - 6/5)

6/7 * (85 - 36) / 30

7/7 * 49/30

1/1 * 7/5

= 7/5

2.)

5/8 × 1 întreg și 2/3 + 11/5

5/8 * (1 2/3 + 11/5)

5/8 * (5/3 + 11/5)

5/8 * (25 + 33) / 15

5/8 * 58/15

1/8 * 58/3

= 58/24

= 2 întreg 10/24

= 2 întreg 5/12

Answer:

1- true

2- false

3- false

4- true

Answer:

91.631 is less than 91.681

Step-by-step explanation:

approximately:

91.631= 91.6

91.681= 91.7

Answer:

48 is the answer because if you were to have been remembering past questions that has that same picture but answered it would be 48

Answer:

0.9959 = 99.59% probability that a randomly chosen person of European ancestry does not carry an abnormal CF gene given that he /she tested negative.

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

In which

P(B|A) is the probability of event B happening, given that A happened.

[tex]P(A \cap B)[/tex] is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Tested negative

Event B: Does not carry an abdornal CF gene.

Probability of a negative test:

10% of 1/25 = 0.04 = 4%

100% of 100 - 4 = 96%. So

[tex]P(A) = 0.1*0.04 + 1*0.96 = 0.964[/tex]

Negative test and not carrying an abdornal gene:

100% of 96%. So

[tex]P(A \cap B) = 1*0.96 = 0.96[/tex]

Compute the probability that a randomly chosen person of European ancestry does not carry an abnormal CF gene given that he /she tested negative.

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.96}{0.964} = 0.9959[/tex]

0.9959 = 99.59% probability that a randomly chosen person of European ancestry does not carry an abnormal CF gene given that he /she tested negative.