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hram777 [196]
4 years ago
7

Can someone help me with this

Mathematics
1 answer:
CaHeK987 [17]4 years ago
5 0

Answer:

19 m

Step-by-step explanation:

This is Geometric progression with

\left \{ {{u_1=1,\: u_2 =2} \atop {u_n=2^{n-1}u_1} \right.

Then the fomular of sum is

S=u_1\frac{2^n-1}{2-1} =1\times(2^n-1)=2^n-1\\To\: save\: 1 \:million\: then \; our \:sum \: will \: be\: 1000000\\Hence,\\2^n-1=1000000\\2^n=1000001\\n=log_{2}{1000001}\approx19,9\\Thus, it\:would \;be \:19 \:months \:before\: we\: saved \:1000000 \:pounds

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Can someone help me with this math homework please!
kobusy [5.1K]

Answer:

It's 2, 1, and y = 2x + 1.

Step-by-step explanation:

You can see the rise is 2 and the run is 1, making the slope = 2, and the y-intercept is 1 because that is where it crosses the y axis. Once you have the slope and y intercept, you can put it in a function, with the form being y=2x+1, the slope being the number before the x and the y-int value being after the x.

8 0
2 years ago
Read 2 more answers
Mrs. Henson's rectangular afghan is 2 feet
JulsSmile [24]

Answer:

The width is 4

Step-by-step explanation:

If the length is 6 feet, minus 2 will be 4. Six times 4 is 24, which is the area of the afghan rug. We are multiplying 6 and 4 because it is length times width in rectangle area.

5 0
3 years ago
Leah claims that these figures are not similar. When she compared the heights, she wrote 27. Then she compared the bases and got
Flauer [41]

Answer:

<h2>Leah is actually wrong, because those rectangles are similar.</h2>

Step-by-step explanation:

Remember that similarity is about having proportional sides and congruent angles. When we have congruent sides, then those rectangles are congruent not similar.

In this case, to find the similarity, Leah should compare bases and heights thorugh division, because the ratio between heights and the ratio between bases must be equal. So, let's divide.

\frac{21}{6}=3.5

\frac{7}{2}=3.5

As you can observe, both ratios are equal.

Therefore, those rectangles are congruent.

4 0
3 years ago
One day, Pam drove 102 miles in 1 1/2 hours. Jake drove 54 miles in 3/4 hour. Who drove at a faster rate?
8090 [49]

Answer:

make the answwer a decimal

Step-by-step explanation:

the fraction need to be a decimal

8 0
3 years ago
Harriet earns the same amount of money each day. Her gross pay at the end of 7 work days is 35h + 56 dollars. Which expression r
Alex_Xolod [135]

Answer:

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Step-by-step explanation:

we are given

total gross pay =35h+56 dollars

total number of days =7

we know that

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we can plug values

gross pay per day is

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we can simplify it

=\frac{7(5h+8)}{7}

=5h+8


7 0
3 years ago
Read 2 more answers
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