Will mark brainliest. Help

Answer:

[tex]x = \frac{a}{y} [/tex]

explanation:

A = xy

divide y on both sides.

A/y = xy/y

x = A/y

Answer:

D - 4(y x y) + 2

Step-by-step explanation:

(y x y) + y2

4 x y2 = 4y2

which gives you 4y2 + 2

An.swer:

171.68

Step-by-step explanation:

Answer:

Step-by-step explanation:

let girls be x

3/4=12/x(do cross multiplication)

12*4=3x

48/3=x

16=x

therefore there are 16 girls

Answer:

16 girls

Step-by-step explanation:

Set up a proportion. Let x = the number of girls.

3 / 4 = 12 / x

Cross multiply:

3x = 48

x = 16

Answer:

120 committees can be formed if 3 males are to be included

Step-by-step explanation:

Total members in the committee = 5

Out of 10 people, 6 are males and 4 are females

In committee of 5 people, 3 males are to be chosen out of 6 and 2 females are to be choses out of 4

Total number of outcomes = 4C2 * 6C3

Total number of outcomes = 6 * 20 = 120

Answer:

18[tex]\sqrt{3}[/tex] inches

Step-by-step explanation:

Applying,

Pythagoras theorem,

a²= b²+c²

Where a = hypotenus, b = base of the triangle, c = height.

make c the subject of the equation

c = √(a²-b²)................. Equation 2

From the diagram attached,

Given: a = 36 in, b = (36/2) in = 18 in

Substitute these values into equation 2

c = √(36²-18²)

c = √(1296-324)

c = √(972)

c = √(972)

c = √(324×3)

c = 18[tex]\sqrt{3}[/tex] inches

Answer:

Step-by-step explanation:

Answer:

0.23076923076

You can search for any mathematical expression,

Answer:

Step-by-step explanation:

(2x-7y)(2x+7y)

2x(2x+7y)-7y(2x+7y)

4x^2+14xy-14xy-49y^2

4x^2-49y^2

(2x)^2-(7y)^2

Answer:

[tex] {4x}^{2} - 49y^{2} [/tex]

Step-by-step explanation:

Use (a - b) (a + b) = a^2 -b^2 to simplify the product.

[tex](2x)^{2} - (7y)^{2} [/tex]

To raise the product to a power, raise each factor to that power:

[tex] {4x}^{2} - (7y)^{2} \\ {4x}^{2} - 49y^{2} [/tex]

Answer:

Step-by-step explanation:

49

Step-by-step explanation:

√11 nearest to √9 prefect square

√9 = 3

√11 = 3.5 approx

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Answer:

C. 21^10

Step-by-step explanation:

(3 * 7)^10 = 16679880978201

Answer:

7cm³

Step-by-step explanation:

volume=mass

density

Answer:

Step-by-step explanation:

Surface area is the sum of areas of 4 triangles.

Each triangle has:

Area of each triangle:

Surface area:

Answer:

It all depends.

Step-by-step explanation:

If you could post an image or something to help us along, I could probably help you.

Answer:

x=8

Step-by-step explanation:

19x-13+6x-7=180

x=8

We have a || b (a parallel to b), the interior angle property. Therefore, the value of x would be 8.

The sum of all the interior angles of parallel lines is equal to 180 degrees.

We have a || b (a parallel to b), the interior angle property

19x - 13 + 6x - 7 = 180

25x - 20 = 180

25x=  200

x = 8

Therefore, the value of x would be 8.

Learn more about the interior and exterior angles here:

https://brainly.com/question/14173422

#SPJ2

Answer: In a repeated-measures study, individual differences do not add to the variance of the scores because the same participants are used in all treatment conditions.

• In a repeated-measures study, you eliminate the need for the population distribution of difference scores to be normal.

In a repeated-measures study, you eliminate the need for the population distribution of difference scores to be normal.

Step-by-step explanation:

An independent measures design, is an experimental design whereby the condition of the experiment is such that there are different group of participants. Based on the information given, the problems can be eliminated or reduced with a repeated-measures study through:

• In a repeated-measures study, individual differences do not add to the variance of the scores because the same participants are used in all treatment conditions

• In a repeated-measures study, you eliminate the need for the population distribution of difference scores to be normal.

Therefore, the correct options are A and D.

Answer: 2 5/8 Cups

Step-by-step explanation:

Cups of flour he have = 1 3/4

= 7/4

Batch of biscuits made = 2/3

Flour to make a full batch

7/4 / 2/3 = 2 1/8

= 2 5/8 Cups

Hope it helps

Answer:

$5.60

Step-by-step explanation:

1.68/3 = .56

10 x .56 = 5.6

Answer:

$5.60

Step-by-step explanation:

1.68 / 3 = 0.56

This is the cost of one eraser.

Now, to find the cost of ten, all we have to do is:

0.56 x 10 = $5.60

Hope i could help :)

Answer:

7 feet i think? i may be wrong tho

Step-by-step explanation:

Answer:

C and D

Step-by-step explanation:

If you find the percentage of 95% of 6 it will give you an answer of 5.7

.95 x.006 equals 0.0057

95x6 equals 570

0.95 x 6 equals 5.7

95/100 x 6 equals 5.7

Answer: 1.87 kg of pears

Step-by-step explanation:

7.5 kg of both apples and pears were sold. 3/4 of this 7.5 kg is apples which means the amount of apples sold is:

= 7.5 * 3/4

= 5.63 kg of apples

The amount of pears sold would therefore be:

= Total amount sold - Amount of apples

= 7.5 - 5.63

= 1.87 kg of pears

7/3 × 5/12 = 35/36

....................................

Answer:

♕ [tex] \large{ \tt{EXPLANATION}} : [/tex]

☄ Here are the answers of some question which should be known before solving the given problem :

❊ How do you multiply one fraction by another ?

⤑ To multiply one fraction by another , multiply the numerators for the numerator and multiply the denominators for its denominator and reduce the fraction obtained after multiplication into lowest term if needed.

✎ [tex] \large{ \tt{SOLUTION}} : [/tex]

[tex] \large{ ❃\bf{ \: \frac{7}{3} \times \frac{5}{12}}} [/tex]

[tex] \large{ \bf{↬ \frac{7 \times 5}{3 \times 12}}} [/tex]

[tex] \large{ \bf{ \boxed{↬ \frac{35}{36}}}} [/tex]

[tex] \boxed{ \boxed { \large{ \tt{ ↭ OUR \: FINAL \: ANSWER: \boxed{ \underline{ \underline{\tt{ \frac{35}{36}}}}}}} }}[/tex]

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Answer:

Step-by-step explanation:

The theoretical result is 0.2 * 20 = 4

The experimental result is 1/2 * 20 = 10

The difference is 10 - 4 = 6

The probability difference = 6/20 = 0.3

Answer:

Choice C: Lauren is faster than Kevin, slower than Jeremy.

Step-by-step explanation:

Ok, so it directly says that Jeremy is going at y=12x, or 12 miles per hour. To find how fast Kevin is riding, take two points of the table and use the slope formula to get the speed(.

Slope Formula: (y2-y1) / (x2-x1)

So lets take the table plots (2, 22) and (4, 33) to do this.

(y2-y1) / (x2-x1)

(33-22) / (4-2)

(11) / (2)

The speed of Kevin is 5.5 miles by hour.

Then, it asks for how fast Lauren is going, saying she is twice as fast as Kevin. Therefore, simply do:

5.5 * 2 = 11 miles per hour

To get the third biker's speed.

Now, with all of the speeds of the bikers, we can now compare them. Here's a listing of their speeds to make things easier to compare:

Jeremy: 12 mph

Kevin: 5.5 mph

Lauren: 11 mph

From this, we can see that Lauren is the second fastest. She is slower than Jeremy but faster than Kevin. Therefore, the correct answer choice is C.

Answer:

18 treats

Step-by-step explanation:

If she gives  2/5  of 30  = 12

so 3/5 of 30 is 18  (also 30-12 =18)

Answer:

x is greater or equal to -4

[tex]x \geqslant - 4[/tex]

Answer:

A) 147.6 sq m

Step-by-step explanation:

Separate the pyramided out into 4 triangles and add those

3 of them (sides) will be the same

[tex]A=h\frac{b}{2} \\A=10\frac{4}{2} \\A=20[/tex]

This is one half of the side, multiply by 2 to get the area of the entire side, 40 square m.

The area of all 3 sides together is 40*3 = 120 sq m

For your base, your height will be 6.9 and your base is 4

A = 13.8  sq m

multiply by 2 again for the entire base

A=27.6 sq m

Now add both

120 + 27.6