In a chemistry lab, each of the 49 students need 80ml of acid. How many 1 l bottles of acid need to be ordered?

Answer:

The answer is 7.1cm to 1d.p

Step-by-step explanation:

Area of square =L²

25=L²

√L²=√25

L=5cm

hyp²=opp²+adj²

x²=5²+5²

x²=25+25

x²=50

√x²=√50

x=7.1cm to 1d.p

Answer:

do you have an image for that?

Step-by-step explanation:

The equation of the graph in standard form is 2x + 3y = -6

The attached figure represents the missing piece in the question

The graph passes through the points

(-3,0) and (0,-2)

The linear equation is then calculated using:

\(y = \frac{y_2 -y_1}{x_2 -x_1} * (x-x_1) + y_1\)

So, we have:

\(y = \frac{-2 -0}{0+3} * (x-0) -2\)

Evaluate the expression

\(y =-\frac 23x - 2\)

Multiply through by 3

3y = -2x - 6

Add 2x to both sides

2x + 3y = -6

Hence, the equation in standard form is 2x + 3y = -6

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Answer:

The first one is: 5x (x+3)
second one: 6x+13-(-7x)

Step-by-step explanation:

Answer:

$54.87

Step-by-step explanation:

The area of the triangular garden is (1/2) x base x height = (1/2) x 6 x 5 = 15 square feet.

The area of the rectangular mulch area is base x height = 12 x 9 = 108 square feet.

The total area to be covered with mulch is 108 - 15 = 93 square feet.

The cost of the mulch is $0.59 per square foot, so the total cost is 93 x $0.59 = $54.87.

Therefore, the total cost of the mulch will be $54.87.

a) The probability that at least one of the two young adults selected is living in his or her parent’s home is; 0.74.

b) The probability both young adults selected are living on their own is; 0.26

We are given the events as;

M = the event a male young adult is living in his parent’ home

F = the event a female young adult is living in her parent’ home

We are also given that;

Probability that a male young adult is living in his parent’ home; P(M) = 0.56

Probability that a female young adult is living in her parent’ home; P(F) = 0.42

a) The probability that at least one of the two young adults selected is living in his or her parent’ home is;

P(at least one of the two young adults selected is living in his or her parents home) = P(M or F) = P(M) + P(F) - P(M and F)

= 0.56 + 0.42 - 0.24 = 0.74.

B) The probability both young adults selected are living on their own which means neither is living with their parents is;

P(neither living with parents) = 1 - P(M or F)

= 1 - 0.74 = 0.26.

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Step-by-step explanation:

a. 4/64= 1/16 for red marble

b. 40/64= 5/8 black marbles

c. 20/64= 5/16 blue marble

d. highest: black marble

e. lowest: red marble

Answer:

y=[x+1]-3 because it's at the end of the line

Add a point at (0.-2) then go down 3 and put another point connect the dots thats it

Step-by-step explanation:

Answer:

So graphing this line is super easy. The slope is -3 and the y-intercept is -2. The like will be going down. Find (0,-2) on the graph and plot that. then go down three times and to the right once. If you connect the first dot to the second one it will show you a line going downwards.

Step-by-step explanation:

If you still need help let me know.

Answer:

"Bandura found students were

more apt to deliver what they

believed were increased levels of

electrical shock to the other

students if they had heard them

called animals." ( Paragraph 8)

Step-by-step explanation:

Answer:

9.1

Step-by-step explanation:

cube root of 753.571 is 9.1

Answer:

A: 180°         B: 360°         C: 540°

Step-by-step explanation:

A: The measures of interior angles of a triangle sum to 180°. Since figure ABC is a triangle, the interior angles of figure ABC sum to 180°.

B: We can see the quadrilateral ACDE is a trapezoid. If you can see, the trapezoid can be split into two triangles if you connect points C and E. As U mentioned before, the measures of interior angles of a triangle sum to 180°. Since we know figure ACDE can be split into two triangles we have to do: 180x2 which is 360°.

C: Now that we know the Pentagon ABCDE can be split into 3 triangles(1 from figure ABC and 2 from figure ACDE), we have to multiply 180 by 3 because like I mentioned before, the measures of interior angles of a triangle sum to 180°. So, 180x3=540°.

Answer:

A) 180

B) 360

C) 540

Step-by-step explanation:

A) All interior angles added together in a triangle are 180°.

B) All quadrilaterals' are 360°.

Think of it as drawing a diagonal to split the quadrilateral equally. You have two triangles, so:

180 + 180 = 360°

C) To find the sum of the interior angles of any polygon, use:

180 (n - 2)

Where n = number of sides. In a pentagon, there are 5:

180 (5 - 2)

180 (3)

540°

The value that would have the most dots on a line plot is given as follows:

4.25.

The dot plot gives a dot to each measure for each time that it appears, hence it says the same thing as a table, in a different format.

A line plot is built from the dot plot, in which:

Hence the value 4.25 is the value in this problem that would have the most dots in a line plot, as it is the value that appears the most times in the data-set (only value to appear three times).

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The coordinates of B are (-7,-2).

What do you mean by x and y coordinates?

The x and y coordinates are a component of the x-axis and y-axis in a 2D space in the Cartesian coordinate system. The x and y coordinates for a point in space are expressed as an ordered pair (x, y). The position of the point on the x-axis is shown by the first number, while its location on the y-axis is indicated by the second number.

According to the given data in the question,

if M is the location where line segment AB meets its midpoint.

Then, we will using the midpoint formula,

\((-5,2)=(\frac{-3+x}{2},\frac{6+y}{2})..............(1)\)

Putting the x-coordinates in (1),

\(-5=\frac{-3+x}{2}\\ -10=-3+x\\-10+3=x\\x=-7\)

Similarly, putting the y-coordinates in (1),

\(2=\frac{6+y}{2} \\4=6+y\\4-6=y\\y=-2\)

Hence, the coordinates of B are (-7,-2).

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Answer:

The sale price of item is 63.05 dollars

Step-by-step explanation:

Given that the price of item is $97

Let P be the price

\(P = 97\)

It is also mentioned in the question that on sale the item costs 65% of the original price so we have to calculate 65% of the item's original price to find the sale price.

Mathematically,

\(Sale\ Price = 65\%\ of\ P\\= 0.65 * 97\\= 63.05\)

Hence,

The sale price of item is 63.05 dollars

There are 14 dogs and 46 chickens in the farmyard.

The supposition that there are d dogs and c chickens.

Each chicken has two legs, but each dog has four.

Consequently, the total number of legs may be written as follows:

4d + 2c

Since we are aware that there are 148 legs in total, we can construct the following equation:

4d + 2c = 148

We may create another equation since we know that there are a total of 60 heads (dogs and chickens):

d + c = 60

Now that we have two equations with two variables, we may answer them both at the same time.

2d + 2c = 120 is the result of multiplying the second equation by two.

When we deduct this from the first equation, we obtain 2d = 28.

So, d = 14.

Reintroducing this into the second equation, we get:

14 + c = 60

So, c = 46.

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Answer:

the correct answer is -1/16 i believe

Answer:

A. down

Step-by-step explanation:

The parent graph is

f(x)=x

If this graph is transformed to obtain

g(x)=f(x)−4

The subtracttion means the graph will shift downward vertically

The graph of g(x) is obtained by shifting f(x) down by 4 unit.

Therefore the direction is down.

Mark this as brainliest please.

The graph with the same end behavior is the one in option C.

The given function has a numerator with a negative leading coefficient and an odd degree, while the denominator is a quadratic polynomial.

It will mean that as x tends to negative infinity, the function tends to infinity, and as x tends to positive infinity, the function tends to negative infinty, that is the end behavior of the given function.

The graph with that end behavior is the same one than in option C.

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Answer:

A) The quotient will be 1 17/22 which means it will be less because when dividing you get 78/44 which is then simplified and turned into a mixed number.

B) He mistake was she did the reciprocal of 13/4 instead of doing it for 11/6. So it should have been 13/4 times 6/11.

C) Correct quotient is 1 17/22 or 39/22

Answer: 24 years

Step-by-step explanation:

Based on the information given, we've been given,

Principal = #250

Interest = #120

Interest rate = 2%

Time = Unknown

Interest = PRT/100

120 = (250 × 2 × Time)

Cross multiply

120 × 100 = (250 × 2 × T)

12000 = 500T

Time = 12000/500

Time = 24

It will take 24 years.

The group of people who participated in the study's sample survey was chosen at random to participate in it by the national grocery store chain. In this instance, the sample comprises the 1,000 customers from throughout the nation that participated in the survey. They are a segment of the total consumer base that frequents the chain's retail outlets.

The chain randomly surveyed 1,000 customers from around the country. It concluded from the study that 80% of all customers who hopped into the chain's stores were interested in the service. The nationwide grocery store chain randomly selected the participants in the study's sample survey from the general public.

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Answer:

y=2x+6

Step-by-step explanation:

Answer: (-5,-5)

Step-by-step explanation: The two lines meet up at (-5,-5)

Answer:

y = 5

x= 75 ( not confident about x)

Answer:

Step-by-step explanation:

let number of 5 legs=x

so 67-5x =multiple of 3

x=1,67-5=62 not divisible by 3

x=2,67-5×2=57 ÷3=19

so he can make 19 three -legged table and 2 five -legged table.

Answer:

7 19/42

Step 1:

Convert the mixed fractions into improper fraction (Denominator will be same)

2x7+2= 16/7

5x6+1=31/6

Step 2:

LCM of 6 and 7 are 42

Step 3:

217+96/42= 313/42

Step 4:

Covert to mixed fraction so the answer is 7 19/42

9514 1404 393

Answer:

  11 17/21

Step-by-step explanation:

The method usually recommended is to convert back and forth between mixed numbers and improper fractions. As with the product of any fractions, the product is the product of numerators, divided by the product of denominators.

  (2 2/7) × (5 1/6) = (16/7)×(31/6) = (16·31)/(7·6) = 8·31/(7·3) = 248/21

  = (231 +17)/21 = 11 17/21

__

Alternatively, you can multiply the parts of the sum.

  (2 2/7) × (5 1/6) = 2×5 +2×1/6 +2/7×5 +2/7×1/6 = 10 + 1/3 + 10/7 + 1/21

  = 11 + 7/21 + 9/21 + 1/21 . . . . . . recognizing 10/7 = 1 3/7 = 1 9/21

  = 11 17/21

__

Many graphing calculators (and some good calculator apps) can do mixed-number arithmetic directly. It pays to learn to use your calculator.

The value of 0.045 × 2.05 / 0.0025 in standard form is 3.69 × 10.

To perform the calculation and express the answer in standard form, follow these steps:

Multiply 0.045 by 2.05:

0.045 × 2.05 = 0.09225

Divide the result by 0.0025:

0.09225 / 0.0025

= 36.9

Convert the answer to standard form by writing it as a decimal multiplied by a power of 10:

36.9 = 3.69 × 10

Therefore, the value of 0.045 × 2.05 / 0.0025 in standard form is 3.69 × 10.

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