please help its due at 11:59 and i´m struggling!!!!

Answer:

area of rhombus=1/2d1d2

Step-by-step explanation:

60=1/2×10×d2

60×2=10×d2

120/10=D2

12=D2

therefore othr diagnol is 12

hope it helps!

Answer:

50th term

Step-by-step explanation:

Second term, a + d = 3

Tenth term, a + 9d = -13

a + d = 3 (1)

a + 9d = -13 (2)

Subtract (1) from (2) to eliminate a

9d - d = -13 - 3

8d = -16

d = -16/8

d = -2

Substitute d = -2 into (1)

a + d = 3 (1)

a + (-2) = 3

a - 2 = 3

a = 3 + 2

a = 5

Find the term of the sequence that has value -93.

nth term = a + (n -1)d

-93 = 5 + (n - 1) -2

-93 = 5 + (-2n + 2)

-93 = 5 - 2n + 2

-93 = -2n + 7

-93 - 7 = -2n

-100 = -2n

n = -100/-2

n = 50

50th term = -93

Answer:

Option B

Step-by-step explanation:

Answer:

3 games to be equivilent

Step-by-step explanation:

to be the same, on the 20 dollar lane you can play 5 3 dollar games for the same price to play on the 35 dollar lane with 10 games.

Hope this helps

Answer:

9.5_<w<9.25

Step-by-step explanation:

[tex]\\ \sf\Rrightarrow m+11=3m+1[/tex]

[tex]\\ \sf\Rrightarrow m-3m=1-11[/tex]

[tex]\\ \sf\Rrightarrow -2m=-10[/tex]

[tex]\\ \sf\Rrightarrow m=-10/-2 [/tex]

[tex]\\\sf \Rrightarrow m = 5[/tex]

Answer:

i think this is right $4.80

Step-by-step explanation:

Answer:

x=3

Step-by-step explanation:

Answer:

x = 3

Step-by-step explanation:

For this, we cross multiply and divide

so it becomes:

2 x 15 = 10x

30 = 10x

Then divide both sides by 10 to isolate x

x = 3

Answer: Yes

Step-by-step explanation:

x = 9 in (9, 8)

The inequality is x is less than or equal to 9

x = 9 so the point satisfies the inequality.

Yes

Answer:

No you use the formula for perimeter (the perimeter should be 378)

Step-by-step explanation:

P = 2l + 2w, l is the length of the rectangle and w is the width of the rectangle

The l or length is (E-I) 119

The w or width is (N-T) 70 in total

Answer:

52:91

Step-by-step explanation:

To find a ratio value you need to think of it more as two numerators that together equal one whole. 4+7 is 11 so that would be the denominator. If the sum is 143, then we divide by 11 since one number is 4/11s of 143, and the other is 7/11s of 143. 143/11=13

now we multiply both:

4(13)=52

7(13)=91

Check:

91+52=143

52/91 simplifies to 4/7 or 4:7

i hope this helps!

Answer:

b)30 boys c)1425 beats

Step-by-step explanation:

Answer:

Step-by-step explanation:

b and g are the number of boys and girls, respectively.

b:g = 3:4

b = 3x, g = 4x

3x+4x = 70

x = 10

There are 30 boys.

:::::

(380 beats)/(4 minutes) = (380/4 beats)/minute = (95 beats)/minute

15 minutes × (95 beats)/minute = 1425 beats

Answer:

x + y = 36 (1)

7x + 4y = 216 (2)

Step-by-step explanation:

Quanrity of Holiday blend = 36 pounds

Cost per pound of the blend = $6.00

Cost of chocolate chips = $7.00 per pound

Cost of pretzels = $4.00 per pound

Let

Pounds of chocolate chips = x

Pounds of pretzels = y

x + y = 36 (1)

7x + 4y = 36 × $6.00

7x + 4y = 216 (2)

The system of equation is

x + y = 36 (1)

7x + 4y = 216 (2)

Answer:

answer is D

Step-by-step explanation:

window seat and the front are 8/12 which simplifies to 2/3. hope it helps

Answer:

2/9 is the probability that the passenger wants a window seat in the front of the plane

explainatio:

8 people want that particular seat and there are 36 passengers on the plane so 8/36= 2/9

Answer:

the answer is B.

Step-by-step explanation:

hope this helps!

Answer:

To find the area of a trapezoid, multiply the sum of the bases (the parallel sides) by the height (the perpendicular distance between the bases), and then divide by 2.

Hope that helps!

Answer:

4:9 or 4/9 depending on how your teacher or computer program wants it entered.  Some use the colon (:) some use the slash (/).

Step-by-step explanation:

1.  Betta fish = 12

2. Total fish = 27  (15 neon + 12 betta)

3.  12:27   or  can be writte as 12/27 depending on your teacher or computer program.  

4.  Can be simplified by dividing by 3

12/3 and 27/3

5.  4:9 or 4/9  

Answer:

Please mark as Brainliest if this helps :)

Step-by-step explanation:

Answer:

The third answer is correct

when you plug 1 into the equation

4(1)-9= -5

4(2)-9 = -1

4(3)-9= 3

Step-by-step explanation:

The sigma notation of the given series is [tex]\sum _{j=1}^5\:\left(4j-9\right)[/tex], option C is correct.

Sequence is an enumerated collection of objects in which repetitions are allowed and order matters.

The given series is -5+(-1)+3+7+11

The sigma notation of the given series is [tex]\sum _{j=1}^5\:\left(4j-9\right)[/tex]

Now let us check by plugging j values from 1 to 5

When j =1,

4(1)-9= -5

When j =2

4(2)-9 = -1

when j=3

4(3)-9= 3

Hence, the sigma notation of the given series is [tex]\sum _{j=1}^5\:\left(4j-9\right)[/tex], option C is correct.

To learn more on Sequence click:

https://brainly.com/question/21961097

#SPJ2

Answer: r= 1.22

Step-by-step explanation:

Formula for amount with simple interest = [tex]P(1+rt)[/tex]

, where

P= principal value , r= rate of interest , t = time.

Given: P=  $2000, t= 5 years, r= 1.25% = 0.0125

[tex]A=2000(1+0.0125\times5)\\\\=2000(1.0625)=2125[/tex]

Formula to compute compound amount : [tex]P(1+r)^t[/tex]

[tex]=2000(1+r)^5[/tex]

When both have same worth then

[tex]2000(1+r)^5=2125\\\\\\ (1+r)^5=\dfrac{2125}{2000}\\\\\\ (1+r)^5=1.0625[/tex]

taking log on both sides , we get

[tex]5\ln (1+r)=\ln 1.0625\\\\\\ 5\ln (1+r)=0.0606246\\\\\\ \ln (1+r)=0.012125\\\\\\ 1+r=e^{0.005266}\\\\\\ 1+r=1.0122\\\\ r=0.0122\\\\ \\ r=1.22\%[/tex]

Hence, Value of r= 1.22

Answer:

The answer is 1

Step-by-step explanation:

Answer:

£469

Step-by-step explanation:

Given the following

Original cost of car = £700.

Depreciation rate = 5.5%

Depreciation amount after 1 year = 5.5% * 700

Depreciation amount after 1 year = 0.055 * 700

Depreciation amount after 6 year =6 * 38.5 =  £231

Worth after 6 years =  £700 -  £231

Worth after 6 years = £469

The correct answer is:

£498.53

Answer:

1. 25

Step-by-step explanation:

First, you need to place the numbers in ascending order, meaning from smallest to largest.

You calculate the range by taking the largest number and subtract the smallest from it, so in this case: 42-17 = 25

Mean (average), just add the numbers up and divide by how many numbers you have

III. Once you find the Mean and you placed them in order from smallest to largest, you can find this answer

Median (middle) - which number is in the middle so after you place them in order which is in the middle if you have an odd number of marks, but since you have 12 marks then take the 2 center numbers, add them up, and divide by 2, in other words, get the mean of the middle numbers and that will give you the median in this problem

Mode, which number appears the most times repeated

Answer:

i.  25 (range = the difference between the highest and lowest number)

ii. 30.41 (mean = sum of all numbers divided by the how many numbers there are)

iii. 6

iv. 35

v. 35

Answer:

You know that y must have to equal 0. x can be anything though.

Step-by-step explanation:

The x-axis is a straight line in the center of the y-axis where y = 0.

Answer:

X=3

Step-by-step explanation:

       0.05(4x) + 0.1x = 0.90

           0.2x + 0.1x = 0.90

                 0.3x = 0.90

                      x = 3

Answer:

D

Step-by-step explanation:

Corresponding angles are the same angles for both sides.

Example: if a= 12, then b also = 12.

Im positive it's alternate interior because they are both inside on alternative sides

Answer:

4 hours and 45 minutes

Step-by-step explanation:

The only thing you have to do is subtract 8 by 3:15 which is 4:45. 4:45 means that it its 4 hours and 45 minutes.

Hope this helps

Answer:

$347.08

Step-by-step explanation:

10' x 12'6" = 125 ft^2

one yd^2 = 9 ft^2

125/9 = 13.89 yd^2

13.89 x $24.99 = $347.08