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4 years ago

Answer QUICK; Will mark BRAINILIEST IF CORRECT

Mathematics

2 answers:

UNO [17]4 years ago

8 0

Answer:this is the correct answer just took test

Step-by-step explanation:

Rama09 [41]4 years ago

6 0

Answer:

2.5; 2.5

Step-by-step explanation:

slope m = (y2-y1)/(x2-x1) (or use the graph and count rise over run)

m = (10-5)/(4-2) = 5/2 or 2.5

The slope of the line is 2.5. This means that 2.5 mm of rain falls every hour

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297689 divided by 161

faust18 [17]

Answer: 1849

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Please help me answer the question below!

Elena-2011 [213]

area = x^2 -10x+25

side = sq root area

x^2-10x+25 = (x-5)(x-5) = (x-5)^2

=》 side = (x-5)

4 0

3 years ago

If the volume of the expanding cube is increasing at the rate 24 cm3 / min , how fast is its surface area increasing when the su

Georgia [21]

Answer:

16 cm^2/min

Step-by-step explanation:

dV/dt=24

V=a^3, differentiate with respect to t

dV/dt=3a^2*da/dt, a^2*da/dt=8

S=6a^2, 216=6a^2. a=6. da/dt=(8/36)

dS/dt=12*a*da/dt=12*(8/6)=16 cm^2/min

7 0

3 years ago

Lucy spends 4 hours a week babysitting. Her sister Lily spends seven eighths as much time babysitting. Does Lily babysit for mor

olganol [36]

Answer:

Lily babysit for less than 4 hours.

Step-by-step explanation:

Given:

Lucy spends in a week babysitting for 4 hours.

Lily spends seven-eighths of 4 hours.

Now, to find whether Lily babysit for more than 4 hours or less than that.

Number of hours Lucy babysit = 4 hours.

So, to get the hours Lily babysit:

$\frac{7}{8}\ of\ 4\ hours.$

$=\frac{7}{8}\times 4\\\\=\frac{28}{8} \\\\$

On simplifying we get:

$=\frac{7}{2} \\\\=3\frac{1}{2}\ hours.$

Thus, Lily spends $3\frac{1}{2}\ hours$ for babysitting which is less than 4 hours.

Therefore, Lily babysit for less than 4 hours.

4 0

4 years ago

If you borrow $894 for four years at an interest rate of 3%, how much interest will you pay?

Studentka2010 [4]

Answer:

$1006.20

Step-by-step explanation:

This is an example of compound interest.

To work this out you would first have to convert the percentage into a decimal, you can do this by dividing 3 by 100, which gives you 0.03. You are dividing by 100 as percentages are out of 100. Then you would add 1 to 0.03, which gives you 1.03. This is because you are finding percentage increases. Then you would multiply 894 by 1.03 to the power of 4, which gives you 1006.20. This is because you are finding 3 percent and adding it on and then finding 3 percent of that, this is why we put it to the power of how much time.

1) Divide 3 by 100.

$3/100=0.03$

2) Add 1 to 0.03.

$0.03+1=1.03$

3) Multiply 894 by 1.03 to the power of 4.

$894*1.03^{4}=1006.20$

3 0

3 years ago