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3 years ago

HELP ME PLEASE I HAVE NO IDEA WHAT IM DOING how do you find the area of overlap???

Mathematics

2 answers:

Vadim26 [7]3 years ago

7 0

Step-by-step explanation:

Subtract the triangle on each side gives you the area of the overlapping section.

Example in photo:

prohojiy [21]3 years ago

5 0

Answer:

subtracting the triangle on each side gives you the area of the overlapping section.

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The solution to a quadric equation are x=2 and x=7. If k is a nonzero constant which of the following must be equal to the quadr

nikklg [1K]

Answer:

The quadratic equation form is x² - 9 x + 14 = 0

Step-by-step explanation:

Given in the question as ,

The solution of quadratic equation are x = 2 and x = 7

The constant K is a non-zero number

Now , let the quadratic equation be , ax² + bx + c = 0

And sum of roots = $\frac{ - b}{a}$

product of roots = $\frac{c}{a}$

So, 2 + 7 = $\frac{ - b}{a}$

Or, 2 × 7 = $\frac{c}{a}$

I.e $\frac{ - b}{a}$ = 9 , $\frac{c}{a}$ = 14

Or, b = - 9 a And c = 14 a

Put this value of b and c in standard form of quadratic equation

I.e ax² + bx + c = 0

Or, ax² - 9 ax + 14 a = 0

Or , a ( x² - 9 x + 14 ) = 0

∴ a = 0 And x² - 9 x + 14 = 0

Hence , The quadratic equation form is x² - 9 x + 14 = 0 Answer

7 0

3 years ago

In which quadrant is point F located <br> A. I<br> B. II<br> C. III<br> D. IV

9966 [12]

It’s C the third quadrant

6 0

2 years ago

Read 2 more answers

It appears that people who are mildly obese are less active than leaner people. One study looked at the average number of minute

fredd [130]

Answer:

0.0322; 0.9929

Step-by-step explanation:

Since the data is normally distributed, we use z scores for these probabilities.

The formula for a z score of a sample mean is

$z=\frac{\bar{X}-\mu}{\sigma \div \sqrt{n}}$

For the sample of mildly obese people, the mean, μ, is 371; the standard deviation, σ, is 65; and the sample size, n, is 6.

Using 420 for X,

z = (420-371)/(65÷√6) = 49/(65÷2.4495) = 49/26.5360 ≈ 1.85

Using a z table, we see that the area under the curve to the left of this is 0.9678. However, we want the area to the right, so we subtract from 1:

1-0.9678 = 0.0322

For the sample of lean people, the mean, μ, is 528; the standard deviation, σ, is 108; the sample size, n, is 6.

Using 420 for X, we have

z = (420-528)/(108÷√6) = -108/(108÷2.4495) = -108/44.0906 ≈ -2.45

Using a z table, we see that the area under the curve to the left of this is 0.0071. We want the area under the curve to the right, so we subtract from 1:

1-0.0071 = 0.9929

7 0

3 years ago

The radius of a circular field is 70 metres.

NeTakaya

Answer: 439.82

Step-by-step explanation:

C=2πr=2·π·70≈439.82297

3 0

2 years ago

Read 2 more answers

What are the solutions of the equation x4+3x2+2=0? use u substitution to solve

sweet [91]

Answer: x = ± i , x = ±√2i are solution .

Step-by-step explanation:

Given : $x^{4} +3x^{2} +2=0$ , use u substitution to solve.

To find : what are the solutions of the equation .

Solution : We have given that $x^{4} +3x^{2} +2=0$ .

Let consider $x^{2}$ = u .

Substitute u = $x^{2}$ in given equation .

$u^{2} + 3u +2=0$ .

On factoring

$u^{2} + 2u+1u +2=0$ .

Taking common

u( u+2) +1 (u+2) = 0.

On grouping

(u+1) (u+2) =0

Now, u+1 = 0 ⇒ u = -1.

u+2 = 0 ⇒ u = -2.

In term of x, plugging $x^{2}$ = u.

$x^{2}$ = -1 ; $x^{2}$ = -2.

taking square root both side

x = ± i

x = ±√2i.

Therefore, x = ± i , x = ±√2i are solution .

8 0

3 years ago