1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kvasek [131]
3 years ago
6

I WILL MARK YOU BRAINLIEST IF YOU ANSWER

Mathematics
2 answers:
liberstina [14]3 years ago
6 0

Answer:

29.25 Pound sterling

irinina [24]3 years ago
6 0

Answer:

50.7? I think ..,.

Step-by-step explanation:

39*1.3 = 50.7

You might be interested in
You are trying to heat up a cup of water with a butane lighter.
algol13

Answer:

Step-by-step explanation:

Remark

The formula for this is

Heat = m * c * Δt

Givens

Heat = unknown

m = 200 grams

c = 4.184 Joules / grams oC

Δt = the change in temperature = 35.7 - 22.3 = 13.4

Solution

Heat = 200 * 4.184 * 13.4

Heat = 11213 Joules

Heat = 11.2 Kj

It's hard to get the correct number of sig digs because the 200 is not qualified in any way.

Part 2.

This can really puzzle you until you know that heat given up = the heat taken on. The heat taken on was 11.2 Kj. The Butane lighter must have given that heat on.

Heat of Combustion = Heat Given Up / Number grams burned.

Heat of Combustion = 11.2 Kj / 0.23 grams

Heat of Combustion = 48.8 Kj / gram

8 0
3 years ago
Evaluate i^31 please help
Nadya [2.5K]

ANSWER

{i}^{31}  =  - i

EXPLANATION

We want to evaluate

{i}^{31}

Use indices to rewrite the expression as:

=  {i}^{30}  \times i

We know that

{i}^{2}  =  - 1

So we rewrite the expression to obtain;

=  ({ {i}^{2}) }^{15}  \times i

This gives us;

=   {( - 1) }^{15}  \times i

This simplifies to

=  - 1 \times i

=  - i

4 0
3 years ago
You buy a house for $230,000. It appreciates at a rate
Xelga [282]

Answer:

1,232,142

Step-by-step explanation:

bro just use a calculator

3 0
2 years ago
Show whether or not y=x+3 is tangential to the curve y^2=x​
wolverine [178]

The line y = x + 3 has slope 1, so we look for points on the curve where the tangent line, whose slope is dy/dx, is equal to 1.

y² = x

Take the derivative of both sides with respect to x, assuming y = y(x) :

2y dy/dx = 1

dy/dx = 1/(2y)

Solve for y when dy/dx = 1 :

1 = 1/(2y)

2y = 1

y = 1/2

When y = 1/2, we have x = y² = (1/2)² = 1/4. However, for the given line, when y = 1/2, we have x = y - 3 = 1/2 - 3 = -5/2.

This means the line y = x + 3 is not a tangent to the curve y² = x. In fact, the line never even touches y² = x :

x = y²   ⇒   y = y² + 3   ⇒   y² - y + 3 = 0

has no real solution for y.

3 0
2 years ago
The elevator in the Empire State Building can pass 80 floors in 45 seconds. How many floors can it pass in 9 seconds?
castortr0y [4]
\bf \begin{array}{ccll}
floors&seconds\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
80&45\\
f&9
\end{array}\implies \cfrac{80}{f}=\cfrac{45}{9}\implies \cfrac{80\cdot 9}{45}=f
7 0
3 years ago
Other questions:
  • Erry has taken a random sample of students and determined the number of electives that each student in his sample took last year
    11·2 answers
  • for every 4 boys at a soccer camp ,there is 2 girls .If there are 21 children at a soccer camp,how many are girls?
    5·2 answers
  • I need help with this urgently!!
    8·1 answer
  • 53 POINTS ON OFFER! MORE FOR BRAINLIEST. FAST HELP! FULL EXPLANATION
    8·2 answers
  • If the number 38,469 is rounded to the nearest thousand, how many zeros does the rounded number have?
    13·2 answers
  • At a local drive-thru restaurant, 4 out of every 10 drinks sold are diet drinks. If the restaurant sells 4,380 drinks in one mon
    13·1 answer
  • Can someone explain how to get the right answer thx
    14·1 answer
  • Solve the equation 7x - 12 = 23<br> What is the answer
    13·2 answers
  • Solve this for me plzzzz and thxxx
    14·2 answers
  • Complete the statement. 8,000 kg = _____ g
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!