100 pts help pls


Is this triangle acute, right, or obtuse?

acute

right

obtuse

x mL of the 35% saline solution contains 0.35x mL of salt.

10 mL of the 75% solution contains 0.75 • 10 mL = 7.5 mL of salt.

After mixing, the scientist would have a total volume of (x + 10) mL. We know its concentration is 40%, so it contains 0.40 (x + 10) mL of salt.

The total amount of salt before and after mixing must be the same, so

0.35x + 7.5 = 0.40 (x + 10)

Solve for x :

0.35x + 7.5 = 0.40x + 4.0

0.10x = 3.5

x = 35

The scientist used 35 mL of the 35% solution.

The expression that can be used to determine the number of years that it would take to have a balance of $600 is In2 ÷ In[tex]e^{0.005}[/tex].

When an amount is compounded continously, it means that both the amount deposited and the interest already accrued increases in value continously over a period of time.

Time = In(FV/PV) ÷ In([tex]e^{0.005}[/tex]

In2 ÷ In[tex]e^{0.005}[/tex]

well, let's see it this way, we know that 3000 is the 100%, and we also know that 3K is x% of 3000, so then

[tex]\begin{array}{ccll} amount&\%\\ \cline{1-2} 3000 & 100\\ 3K& x \end{array} \implies \cfrac{3000}{3K}=\cfrac{100}{x} \\\\\\ 3000x=300K\implies x=\cfrac{300K}{3000}\implies x=\cfrac{K}{10}[/tex]

Answer:

b=8.5cm

Step-by-step explanation:

tanx (this represents tan theta, it's just easier to type) is equal to 0.6 and since the tanx ratio is opp/adj, we know that opp/adj = 0.6

To find what b is (adjacent as it is adjacent to the angle being used and it is not the hypotenuse), we just have to rearrange.

0.6=5.1/adj

to solve for adj, we can switch 0.6 and adj. (This works because to get adj by itself on one side you would multiply it to the other side and then divide 0.6 from both sides --> simple algebra)

so then you have

adj=5.1/0.6

adj=8.5cm

(if you want to check your solution you can use pythagoeran theorem, a^2+b^2=c^2) and sub everything in and make sure all the numbers equal the right thing!

Answer:

12 2/3  km  per hour

Step-by-step explanation:

What is Harveys speed?

Take the distance and divide by the time

3 1/6 km

--------------

1/4 hour

Change the mixed number to an improper fraction

3 1/6 = (6*3+1)/6 = 19/6

19/6 km

--------------

1/4 hour

Copy dot flip

19/6 * 4/1 = 76/6 = 38/3  km/hr

3 goes into 38 12 times  (12*3 = 36)  with 2 left over

12 2/3  km  per hour

Answer:

P = 67°

Step-by-step explanation:

[tex]tan(P)=\frac{24}{10}[/tex]

[tex]P=tan^{-1} (2.4)=67.3^{o}[/tex]

Hope this helps

Answer:

67°

Step-by-step explanation:

Check The attached photo

Answer:

12

Step-by-step explanatik just need the points

The cost of one pair of earing will be £8.59.

Expression in maths is defined as the relation of numbers variables and functions by using mathematical signs like addition, subtraction, multiplication and division.

Given that four friends, each bought matching necklaces and two pairs of earrings the necklace was priced at 15.00 if the total bill for all 4 friends was 128.00.

The cost of one pair of earing will be,

£128-£15-£15-£15-£15= £68

Number of pairs of earing,

2x4=8 pairs of earrings

The cost of one pair of earrings is,

£68 / 8 = £8.50

Therefore, the cost of one pair of earing will be £8.59.

To know more about an expression follow

https://brainly.com/question/26751177

#SPJ2

Answer:

24

Step-by-step explanation:

24÷8=3

24÷6=4

Answer:im pretty sure its 20

Step-by-step explanation: because 4x5=20 and theres 24

The cost of 1 shirt would be 10

you would need to multiply the cost of one shirt by the number of shirts bought (x)

Using the arrangements formula, it is found that there are 240 ways for the students to sit.

The number of possible arrangements of n elements is given by the factorial of n, that is:

[tex]A_n = n![/tex].

In this problem:

Hence:

T = 5 x 2! x 4! = 240.

There are 240 ways for the students to sit.

More can be learned about the arrangements formula at https://brainly.com/question/24648661

Answer:

Let me know if this is not what you meant by rays, I can change it if needed.

The equation for the base is that of a circle, so the cross sections will have a leg of length equal to the vertical distance between its halves.

x² + y² = 16   ⇒   y = ±√(16 - x²)

⇒   length = √(16 - x²) - (-√(16 - x²)) = 2 √(16 - x²)

Cross sections with thickness ∆x have a volume of

1/2 length² ∆x = 1/2 (2 √(16 - x²))² ∆x = (32 - 2x²) ∆x

since they are isosceles triangles and so their bases and heights are equal.

Then the total volume would be (D)

[tex]\displaystyle \int_{-4}^4 \frac12 \left(2 \sqrt{16-x^2}\right)^2 \, dx[/tex]

Answer:

You can have almost all of these qualities and still not have a parallelogram.

Explanation:

The four shapes that meet the requirements of a parallelogram are square, rectangle, rhombus, and rhomboid.

Answer:

See below ↓↓↓↓↓

Step-by-step explanation:

Q1)

Q2)

Q3)

Q4)

Q5)

Apply combine gas law

[tex]\\ \rm\dashrightarrow \dfrac{P1V1}{T1}=\dfrac{P2V2}{T2}[/tex]

[tex]\\ \rm\dashrightarrow \dfrac{10(341)}{310}=\dfrac{15V2}{120}[/tex]

[tex]\\ \rm\dashrightarrow 11=\dfrac{V2}{8}[/tex]

[tex]\\ \rm\dashrightarrow V2=88in^3[/tex]

Answer:

88 in³

Step-by-step explanation:

we are given that the volume V of a given mass of gas varies directly as the temperature T and inversely as the pressure P.

Condition-1:

The volume V of a given mass of gas varies directly as the temperature T , thus

[tex]V\propto T\\\implies V=kT[/tex]

Condition-1:

The volume V of a given mass of gas varies inversely as the pressure P, therefore,

[tex]V\propto 1/P\\\implies V=k\cdot 1/P[/tex]

combining 1 and 2 yields

[tex]V\propto k\cdot T/P[/tex]

Case-1:

To find:

Finding the constant of proportionality

[tex]341= k\cdot 310/10\\\implies k=341\times 10/310 \\ \implies \boxed{k=11}[/tex]

Case-1:

To find:

when:

Finding the volume:

[tex]V= 11\times 120/15\\\implies V=11\times 8 \\ \implies \boxed{V=88}[/tex]

The value of the z is −2.1 then the probability P(z < −2.1) is 0.0179. Then the correct option is A.

It is also called the Gaussian Distribution. It is the most important continuous probability distribution. The curve looks like a bell, so it is also called a bell curve.

The z-score is a numerical measurement used in statistics of the value's relationship to the mean of a group of values, measured in terms of standards from the mean.

If the value of the z is −2.1. Then the probability will be

P(z < −2.1) = 0.0179.

More about the normal distribution link is given below.

https://brainly.com/question/12421652

Answer:

its a on edge 0.0179

Step-by-step explanation:

Answer:

I think the volume is 18

Step-by-step explanation:

6×3 = 18

Answer:

Step-by-step explanation:

Draw a house for cell walls

draw a solar panel for photosyntheses

draw a sink for vacuoles

Answer:

x=-14

Step-by-step explanation:

-x-11^2+1

-x-11^3

-x^14

x=-14

Answer:

3 stunts per movie

Step-by-step explanation:

Answer:

3:1

Step-by-step explanation:

12 sunts in 4 movies
simply this.
12:4 is the ratio
3:1 is the final ratio
Therefore, there is 3 stunts per movie.

Answer:

0.56

Step-by-step explanation:

8.96/(4*4)

there are 16 cups in the 4 quart jug so we need to divide the price by 16 to get the price per quart

Answer:

16 pi  cm^2

Step-by-step explanation:

Area = pi r^2      r = 1/2 d

        = pi (4^2) = 16 pi cm^2

Answer:

Step-by-step explanation:

4(4/3) DIVIDED INTO     2(2/3)    (mixed numbers)

16/3    DIVIDED INTO   8/3  

     16/8=2

16/3 divided into 8/3

  is the same as

16/3 multiplied be  3/8

     48/24 =2          

Answer:

2 km

Step-by-step explanation:

radius = [tex]\frac{diameter}{2}[/tex]

radius = [tex]\frac{4}{2}[/tex]

radius = 2 km