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
Inga [223]
3 years ago
6

Please xplain if u answer

Mathematics
1 answer:
Tresset [83]3 years ago
3 0
It says 3.5mm by 2mm, so the area would be 7 because 3.5×2=7
You might be interested in
How many terms are there in a geometric series if the first term is 4, the common ration is 3 and the sum of the series is 160
Marina CMI [18]
\bf \qquad \qquad \textit{sum of a finite geometric sequence}
\\\\
S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
r=\textit{common ratio}\\
----------\\
a_1=4\\
r=3\\
S_n=160
\end{cases}

\bf 160=4\left( \cfrac{1-3^n}{1-3} \right)\implies 160=4\left( \cfrac{1-3^n}{-2} \right)\implies 160=-2(1-3^n)
\\\\\\
160=2(3^n-1)\implies \cfrac{160}{2}=3^n-1\implies 80=3^n-1
\\\\\\
81=3^n~~
\begin{cases}
81=3\cdot 3\cdot 3\cdot 3\\
\qquad 3^4
\end{cases}\implies 3^4=3^n\implies 4=n
3 0
3 years ago
Question 9: Please help, what would be the length of the image of the segment GH?
shepuryov [24]

Answer:

<u><em></em></u>

  • <u><em>The length of the image of the segment GH would be 5 units.</em></u>

Explanation:

You can use the <em>center of dilation</em> as your origin of coordintes.

Thus, the <em>point H</em> would have coordinates (0,0) and the <em>point G</em> (-1,0).

A <em>dilation</em> multiplies the coordinates by the <em>scale factor</em>. Hence:

  • H = (0,0) → H' = 5 × (0,0) = (0,0)
  • G = (-1,0) → G] = 5 × (-1, 0) = (-5, 0)

Thus, the length of the image of segment GH would be the distance from 0 to -5 in a number line, which is 5.

3 0
3 years ago
Read 2 more answers
A tank contains 10 liters of pure water. Saline solution with a variable concentration 5 grams of salt per liter is pumped into
algol [13]

Answer:

dQ(t)/dt = 20 - 2Q(t)/5 , Q(0) = 0

Step-by-step explanation:

The mass flow rate dQ(t)/dt = mass flowing in - mass flowing out

Since 5 g/L of salt is pumped in at a rate of 4 L/min, the mass flow in is thus 5 g/L × 4 L/min = 20 g/min.

Let Q(t) be the mass present at any time, t. The concentration at any time ,t is thus Q(t)/volume = Q(t)/10. Since water drains at a rate of 4 L/min, the mass flow out is thus, Q(t)/10 g/L × 4 L/min = 2Q(t)/5 g/min.

So, dQ(t)/dt = mass flowing in - mass flowing out

dQ(t)/dt = 20 g/min - 2Q(t)/5 g/min

Since the salt just begins to be pumped in, the initial mass of salt in the tank is zero. So Q(0) = 0

So, the initial value problem is thus

dQ(t)/dt = 20 - 2Q(t)/5 , Q(0) = 0

3 0
2 years ago
What is the value of <br><br>(8+3k)²-(-k-6)²¹ if k=5​
Dmitrij [34]

Answer:=530

Step-by-step explanation:

3 0
2 years ago
How could you convert<br> the 3/8of an inch into sixteenths?
BARSIC [14]

Answer:

6/16

Step-by-step explanation:

To get 16ths multiply both the top and bottom by 2

3*2=6

8*2=16

6/16ths =0.375

3/8ths=0.375

4 0
3 years ago
Other questions:
  • Find the missing element in the following base-rate-percentage problem. 12% of what number is 42?
    15·1 answer
  • Is the ratio 5:6 equivalent to 3:4
    7·2 answers
  • The dam has 12 pumps that each transfer the same amount of water through pipes from Lake Roosevelt to Banks Lake. Together, the
    13·1 answer
  • Which of the following could be the function graphed?
    10·1 answer
  • At the movie theatre, child admission is $6.10 and adult admission is $9.20 . On Thursday, three times as many adult tickets as
    12·1 answer
  • dentify the type of data​ (qualitative/quantitative) and the level of measurement for the native language of survey respondents.
    7·1 answer
  • The price of a pair of shoes increases from $54 to $68. What is the percent increase to the nearest percent?
    14·1 answer
  • Find the value of the expression<br> b + 1 + c + 6<br><br> for b = 4 and c = 9.
    13·2 answers
  • Mrs.Page bought a new singing outfit. After 7.5% tax sales tax, she paid $32.25. what was the original price of the outfit?
    7·2 answers
  • RThe sum of five consecutive integers is 330. What is the least integer?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!