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3 years ago

Q: 9-16?? (Attached Image)

Mathematics

1 answer:

lions [1.4K]3 years ago

7 0

I mostly this it is negative 7 I hopefully hope that this may have help you If not im very very sorry

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A shipping container is known to hold exactly 1000 ft squared. if the container is measured, which side dimensions would produce

sleet_krkn [62]

c..........................

4 0

3 years ago

Read 2 more answers

What is the solution of -27 = m/9 ? A. -243 B. -3 C. 3 D. 243

asambeis [7]

Answer: m = -243

Explanation:

• Solve

-27 = m/9

•Multiply 9 by 27

m/9 * -27

• Result

m = -243

8 0

4 years ago

Read 2 more answers

Jayden and Ava share a reward of $35 in a ratio of 2 : 3. What fraction of the total reward does Ava get?

Svet_ta [14]

We are given : Jayden and Ava share a reward of $35 in a ratio of 2 : 3.

Total amount is $35.

We need to divide it in 2:3 ratio.

2:3 ratio represents 2 parts for Jayden and 3 parts for Ava of the total $35.

2 and 3 make total 5 part.

5 parts make $35.

1 part = 35/5 = $7.

Jayden should have 2 parts = 2* 7 = $14.

Ava should have 3 parts = 3 * 7 = $21.

Ava got total $21.

Now, we need to check $21 is what fraction of the total $35.

21/35 can be reduced into fraction 3/5.

<h3>Therefore, Ava get 3/5 of the $35.</h3>

4 0

4 years ago

A whistle is made of a square tube with a notch cut in its edge, into which a baffle is brazed. Determine the dimensions d and θ

jasenka [17]

Answer:

d = 7.51 cm

θ = 60°

Step-by-step explanation:

The baffle used in the notch of a whistle is a triangular baffle (Isosceles triangle OAB).

For the isosceles triangle, the sides with equal dimension are OA and OB which is represented with d

d = the vertical component of the side of a triangle

It is given by

6.5cm = d sin60

d = 6.5/sin60

d = 7.505553499465134

d = 7.51 cm -------- Approximated

To calculate angle θ

Angle on a straight line is = 180

So, 60 + 60 + θ = 180

θ= 180 - 120

θ = 60°

(See attachments below)

3 0

3 years ago

Two chemicals A and B are combined to form a chemical C. The rate, or velocity, of the reaction is proportional to the product o

Keith_Richards [23]

Answer:

32.1 g

Step-by-step explanation:

In each 3 grams of C, there are 2 grams of A and 1 gram of B. So, for some amount C, the amount remaining of A is 40 -(2C/3), and the amount remaining of B is (50 -C/3). Since the reaction rate is proportional to the product of these amounts, we have ...

C' = k(40 -2C/3)(50 -C/3) = (2k/9)(60 -C)(150 -C) . . . for some constant k

This is separable differential equation with a solution of the form ...

ln((150 -C)/(60 -C)) = at + b

We know that C(0) = 0, so b=ln(150/60) = ln(2.5). And we know that C(10) = 20, so ln(130/40) = 10a +ln(2.5) ⇒ a = ln(1.3)/10

Then our equation for C is ...

ln((150 -C)/(60 -C)) = t·ln(1.3)/10 +ln(2.5)

For t=20, this is ...

ln((150 -C)/(60 -C)) = 2ln(1.3) +ln(2.5) = ln(2.5·1.3²) = ln(4.225)

Taking antilogs, we have ...

(150 -C)/(60 -C) = 4.225

1 +90/(60 -C) = 4.225

C = 60 -90/3.225 ≈ 32.093 . . . . . grams of product in 20 minutes

In 20 minutes, about 32.1 grams of C are formed.

7 0

3 years ago