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vfiekz [6]
3 years ago
14

GOT ANOTHER QUESTION... WILL MAKE BRAINLIEST

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
4 0

Answer:

s= -1

Step-by-step explanation:

7= -10s-3

+3        +3

10=-10s

s= -1

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What is the sum of the integers between the square root of 12 and 40?
satela [25.4K]
1.

the closest perfect squares of 12 are 9 and 16, 

that is 9<12<16

so 
\sqrt{9}\ \textless \  \sqrt{12}\ \textless \  \sqrt{16}

3\ \textless \ \sqrt{12}\ \textless 4

this means, \sqrt{12} is  3 point something...


2.

similarly 

36<40<49

so

\sqrt{36}\ \textless \  \sqrt{40}\ \textless \  \sqrt{49}

6\ \textless \  \sqrt{40}\ \textless \ 7

which means \sqrt{40} is 6 point something...

3. 

<span>the sum of the integers between the square root of 12 and 40 is the sum of 4, 5 and 6, since 4 is the smallest integer after root 12, and 6 the greatest integer to before root of 40.


Answer: 15</span>
8 0
3 years ago
Nick's rectangular bedroom has a length of (2x−5) and a width of (x+1). Which equation describes the area, A, of Nick's bedroom
Mrac [35]

Answer:

A = 2x²-3x-5

Step-by-step explanation:

Given that,

The length of the bedroom, l = (2x-5)

Width of the bedroom, b = (x+1)

We need to find an equation for the area of the bedroom. We know that,

Area of a rectangle = lb

Put all the values,

A = (2x-5)(x+1)

= 2x²+2x-5x-5

= 2x²-3x-5

Hence, the area of the bedroom is equal to 2x²-3x-5.

5 0
3 years ago
Dan buys a car for £2200.
KatRina [158]

Answer:

The worth of the car after 6 years is £2,134.82

Step-by-step explanation:

The amount at which Dan buys the car, PV = £2200

The rate at which the car depreciates, r = -0.5%

The car's worth, 'FV', in 6 years is given as follows;

FV = PV \cdot \left ( 1 + \dfrac{r}{100} \right )^n

Where;

r = The depreciation rate (negative) = -0.5%

FV = The future value of the asset

PV = The present value pf the asset = £2200

n = The number of years (depreciating) = 6

By plugging in the values, we get;

FV = 2200 \times \left ( 1 + \dfrac{-0.5}{100} \right )^6 \approx 2,134.82

The amount the car will be worth which is its future value, FV after 6 years is FV ≈ £2,134.82 (after rounding to the nearest penny (hundredth))

8 0
3 years ago
Find the range of the inequality 2e-3&lt; 3e-1​
serg [7]

Answer:

x = { - 1, 0,1 ,2  ...}

Step-by-step explanation:

2e - 3 < 3e - 1 = 2e - 3e  <  - 1 + 3 =  - 1e < 2 = e >  - 2

Hope this helps ;) ❤❤❤

6 0
3 years ago
300 juniors at Central High School took the ACT last year. The scores were distributed normally with a mean of 24 and a standard
Usimov [2.4K]

Answer:

150 students

Step-by-step explanation:

According to statement we have the following information

number of juniors=n=300

mean score=24

standard deviation score=4

The number of students that score above 24 is determined by

Number of students score above 24=number of juniors* P(student score above 24)

P(student score above 24)=P(x>24)=P(x-mean/sd>24-24/4)=P(z>0)=0.5.

Students score above 24=np=300*0.5=150

Hence there are 150 students scored above 24.

4 0
3 years ago
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