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3 years ago

Find the area of the figure

Mathematics

1 answer:

bulgar [2K]3 years ago

4 0

Answer:

Step-by-step explanation:

Formula for Area of Triangle = $\frac{B * h}{ 2 }$

8 x 8 = 64

64/2 = 32

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Are x = -4 and x = 6 solutions to 5x + 7 < 22? TRUE OR FALSE

DochEvi [55]

Answer:

x=-4 is true, x=6 is not

Step-by-step explanation:

5x + 7 < 22

Plug in our X values

5(-4) + 7 < 22 ?

solve

-20 + 7 < 22

-13 < 22 ?

x=-4 is true.

Repeat steps from ^

5(6) + 7 < 22

30 + 7 < 22

37 < 22 ?

x=6 is not true.

Hope this helped

4 0

3 years ago

Read 2 more answers

Which 2 values of x are roots of the polynomial below?

Alexxx [7]

Given:

The given polynomial is:

$f(x)=$ $3x^{2}-3x+1$

To find the roots of the given polynomial.

To find the roots we have to take $f(x) = 0$

So,

$3x^{2} -3x+1 = 0$

Formula

By quadratic formula, the root of the equation $ax^{2} +bx+c = 0$ is,

$x = \frac{-b+\sqrt{b^{2}-4ac } }{2a}$ and $\frac{-b-\sqrt{b^{2} -4ac} }{2a}$

Now,

Putting, $a=3, b=-3, c=1$ we get,

$x = \frac{3+\sqrt{3^{2}-4(3)(1) } }{(2)(3)}$ and $\frac{3-\sqrt{3^{2}-4(3)(1) } }{(2)(3)}$

$x = \frac{3+\sqrt{-3} }{6}$ and $x=\frac{3-\sqrt{-3} }{6}$

Hence,

The values of the roots of the given polynomial are $x=\frac{3+\sqrt{-3} }{6}$ and $x=\frac{3-\sqrt{-3} }{6}$

Hence, Option A and F are the correct answer.

5 0

3 years ago

Help?

Pachacha [2.7K]

Answer:

The correct option is: 32.4 km/h

Step-by-step explanation:

The fastest recorded speed of a turtle while swimming is 9 m/s.

Now, 9 m/s $=\frac{(9)meters}{(1)second}$

1 kilometer= 1000 meter

So, 1 meter $= \frac{1}{1000}=0.001$ kilometer

and 9 meters $=(9*0.001)kilometer = 0.009$ kilometer

Now, 1 hour = 3600 seconds

So, 1 second $=\frac{1}{3600}hour$

Thus, we will get.........

$\frac{(9)meters}{(1)second}=(\frac{0.009}{\frac{1}{3600}}) kilometer/hour =(0.009*3600)=32.4 km/h$

So, the speed of the turtle will be 32.4 km/h.

7 0

3 years ago

Calculate the following expressions : A = 36.8 + 4 x 10.2 - (4.5 x 2): 3

xxTIMURxx [149]

Te ajut eu la dacă vrei la matematica

5 0

3 years ago

How do i slove this and the input is -9

IrinaK [193]

Equation step-by-step:

$y = \sqrt{-9} - 2$

$\bf~y = 3i -2$

Hope it helped,

BioTeacher101

(If you have any questions feel free to ask them in the comments)

8 0

3 years ago