what is the solution to this equation: 7m to the 2 power + 6m - 1 = ?

Answer:

Step-by-step explanation:

area of semi circle = π r² / 2

where r = 10/2 = 5 cm

area = π (5)² / 2

        = 39.27 cm²

Answer:

39.3 cm2

Step-by-step explanation:

diameter=radius/2= 10/2 = 5

area of semicircle=pi(r^2) / 2

=pi(5^2) / 2

=39.26...

=39.3

Answer:

18.75 miles

Step-by-step explanation:

1 hour = 60 minutes

2.5 Hours = 150 minutes

10 miles _____> 80 minutes

x_______> 150 minutes

x= ( 150 * 10) / 80

= 1500/80

x= 18.75 miles

easy

Answer:

Step-by-step explanation:

10 miles- 80 minutes

            ?- 150 minutes

1500+80x

X= 10.75 miles

Answer:

C ≈ 12.56 mi

General Formulas and Concepts:

Pre-Alg

Geometry

Step-by-step explanation:

Step 1: Define

d = 4

Step 2: Find Circumference

The slope of the given line is 4.

The slope of a line is a measure of its steepness. Mathematically, slope is calculated as "rise over run" (change in y divided by change in x).

Given that, a line passing through points (3, 9) and (1, 1) we need to find the slope of the line,

Slope = y₂ - y₁ / x₂ - x₁

So,

Slope = 9-1 / 3-1 = 8/2 = 4

Hence, the slope of the given line is 4.

Learn more about slopes, click;

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We can deduce here that for a height of 145 cm, a likely interval of ages could be: 12 ≤ age ≤ 15

In mathematics, an inequality is a mathematical statement that expresses a relationship between two quantities, indicating that one quantity is greater than or less than another. It represents a comparison or a difference in values.

For a height of 145 cm, a likely interval of ages could be:

12 ≤ age ≤ 15

This range assumes that the child's height falls within the average height range for boys aged 12 to 15 years. However, it's important to consider that individual variations and growth patterns can influence a child's height, so this interval should be interpreted with caution.

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Answer:

23/10 or 15

Step-by-step explanation:

The required balance is $939.9

Given,

Time=7 years

Principal=700

Rate=4.3%

Compound Intrest:

Compound interest (or compounding interest) is the interest on a loan or deposit calculated based on both the initial principal and the accumulated interest from previous periods.

The formula of the compound interest is,

[tex]A=P(1+\frac{r}{100})^T[/tex]

Now, substituting the given values into the above formula we get,

[tex]A=P(1+\frac{r}{100})^T \\A=700(1+\frac{4.3}{100})^7\\ A=939.9[/tex]

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Answer:

10%

Step-by-step explanation:

Answer:

x is eighteen

y is fifty four

Answer:

x= 18 degrees and y=54 degrees

Step-by-step explanation:

Look at the top of the line AB. You can see that

3x+y+72=180

Now, look at the left side of the line CD. You can see that

y+90+2x=180

Hence, you have 2 equations in 2 unknows, which are possible to solve.

In resume, the 2 equations are:

3x+y+72=180

2x+y+90=180

By substracting the second equation to the first one, it yields

x-18=0

which implies x=18.

Now, we can susbstitute this value on the fist equation:

3(18)+y+72=180

54+y+72=180

y+126=180

y=180-126

y=54

We can corroborate these result in the second equation:

2(18)+54+90=

36+54+90=

90+90=

180.

Thats right !!

Answer:

Step-by-step explanation:

563 people / 15 classes= 37 8/15. They should offer 38 classes.

2146 questions in 45 weeks.

2146/45= 47 31/45. round to 48 questions a week.

I would choose the first one. Even though the 2000 is an underestimate, the 50 weeks is overestimate , when divided it comes out to 50 questions a week which is closer to the 48 it actually is. I'd rather write too many questions then not enough.

Answer:

Midpoint = (-0.5, 3.5)

Step-by-step explanation:

Answer: Yes, Susie can fit all her apples in her baskets.

Step-by-step explanation: If she has 26 baskets filled of apples and can hold 12 apples each, then she can fill 2 baskets with apples and have a remainder of 2 apples left.

Answer:

1/6 tan(11 π) = 0

Alternate representations:

1/6 tan(11 π) = -1/6 cot((21 π)/2)

1/6 tan(11 π) = -1/6 cot((23 π)/2)

1/6 tan(11 π) = 1/(6 cot(11 π))

Step-by-step explanation:

Answer:

2 16/21

Step-by-step explanation:

Answer:

the answer is k=1

Step-by-step explanation:

Answer:

3a + 2b ; a=1, b =-2

3

(

1

)

+

2

(

−

2

)

(substitute the values of the variables)

From here on, it's just a matter of condensing down the numbers. Very straightforward, and easy points on tests and quizzes. You can do this in your head if you want, or you can just do it on your calculator (which is probably the best way to go as it's faster and more accurate).

3

+

(

−

4

)

(simplify)

3

−

4

=

−

1

So here, what we've proven is that in our given equation, if

a

=

1

and

b

=

−

2

, then it would yield us a product of

−

1

.

Once again, these types of evaluation problems are very straightforward, and are usually always easy points on tests and quizzes if you have an inkling of an idea of what the concept is about. Again, if you have a calculator with all the appropriate functions, that makes it even easier.

Try another:

6

a

2

−

b

+

8

with a = 1 and b = 3

6

(

1

)

2

−

(

3

)

+

8

6 - 3 + 8

= 11

Just as a sidenote here, make sure you're aware of the difference between

(

6

x

)

2

and

6

x

2

. The former refers to both the 6 and the

x

being squared, whereas the latter shows only the

x

being squared. Just be careful not to mix the two.

Try one more:

2

c

−

5

3

b

+

4

with b = 2 and c = 4

2

(

4

)

−

5

3

(

2

)

+

4

=

8

−

5

6

+

4

=

3

10

(or 0.3)

Speaking from experience, when you work with rational (fraction) polynomials on paper, it often tends to take up a bit of space and get messy. Therefore, I'd suggest you tried solving one equation at a time if you have the same issue.

Also, sometimes you may come across values that you don't want to type again in your calculator (like non-recurring decimals). For these, use the store function on your calculator to get maximum accuracy. With TI-84 and 83s, you can save values as letters (X, Y, etc.). Hence, you can just write out your equation using these, and hence significantly reduce the risk of typing the number wrong, while saving yourself some time.

Step-by-step explanation:

Answer:

The answer is 10

Step-by-step explanation:

6a + 2b

6(1)+2(2)

6+4

=10

Answer:

The answer should be B

Answer:

19) slope=2  y-intercept is 1   equation is y=2x+1

20) slope=-4  y-intercept is 4   equation is y=-4x+4

21) slope=-1/3  y-intercept is -5   equation is y=-1/3x-5

22) slope=-2/3  y-intercept is -5   equation is y=-2/3x-5

23) slope=-8  y-intercept is is -4   equation is y=-8x-4

24) slope=5  y-intercept is -3   equation is y=5x-3

Step-by-step explanation:

hope this helps :3

if it did pls mark brainliest

Answer:

periodtperiodtperiodtperiodtperiodtperiodtperiodtperiodt

Step-by-step explanation:

periodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodteriodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodttperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodteriodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodteriodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodttperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodteriodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodteriodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodttperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodteriodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodteriodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperdtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodtperiodttperioodtperiodtperiodtperi

Answer:

anna oooppppddpkddkjdjdfhjndjd-

Step-by-step explanation:

Answer:

population-amount of people per sq ft

climate- the average climate in that are

physical- elevation, landmarks,

Step-by-step explanation:

Answer:

x=3,5

Explanation:

x2−8x+15=0

Try to express the terms of the equation in square form.

Adding 16 both sides of the equation,

(x2−2⋅x⋅4+42)+15=16

or,(x−4)2+15−16=0

or,(x−4)2−1=0

or,(x−4)2−12=0

This is the a2−b2=(a+b)(a−b)form.

(x−4+1)(x−4−1)=0

or,(x−3)(x−5)=0

Now, equate both the terms to zero since both of them when multiplied, give zero.

Either,

x−3=0

∴x=3

Or,

x−5=0

∴x=5

Ans:x=3,5 Hope this helpsXD...!!

Answer:

3<x<5

Step-by-step explanation:

an Univariate quadratic polynomial can be divided into the product of two first order equations

In this example, x2 - 8x + 15 =  (x-3) * (x-5) <0

as a result. the answer is 3< x <5

Answer:

Step-by-step explanation:

its maybe A

Answer:

Step-by-step explanation:

12t2 - 6t