S/7-4+3f use s=14 and f=-8 (last one i swear, i'm sorryxd)

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S/7-4+3f use s=14 and f=-8 (last one i swear, i'm sorryxd)

first one.

Step-by-step explanation:

[tex]((7^{3} )^{-2} )[/tex] = [tex]7^{-6}[/tex]

36cm squared base times height equals 72 then you have to divide by 2

we have three similar triangles, because each has a right angle and shares an angle. let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

[tex](5 + x)/6 = 6/x[/tex]

[tex]x(x+5) = 36[/tex]

[tex]x^2 +5x - 36 = 0[/tex]

[tex](x+9)(x-4) = 0[/tex]

we reject the negative root and conclude x=4

answer: 4

[tex]If bc = 6 and ad = 5, find dc. a) 4 b) 4.5 c) 7.2[/tex]

answer: the correct one is a

step-by-step explanation:

Actually I think it may be C

6. is A because the English were jealous that the French were making lots of money from fur trapping.

7. is B because the Indians wanted to drive out the English settlers

8. is A because demand for furs by Europeans was high because all the furs near them were extinct

9. is D because Spain wanted to spread the Catholic religion to the American indians

[tex]({7}^{3} ) ^{ - 2} \\ = {7}^{ - 6} = \frac{1}{ {7}^{6} } = \frac{1}{7 \times 7 \times 7 \times 7 \times 7 \times 7}[/tex]First answer is correct....

-s/7-4+3f

Replace s with 14 and f with -8.

-14/7-4+3(-8)

Follow the order of operations: do multiplication and division first, then addition and subtraction.

-2-4-24

Solve:

=-30.

The answer is -30.

(a)

Step-by-step explanation:

Given the 2 equations

6x + 2y = - 6 → (1)

3x - 4y = - 18 → (2)

Multiplying (1) by 2 and adding to (2) will eliminate the term in y

12x + 4y = - 12 → (3)

Add (2) and (3) term by term

15x = - 30 ( divide both sides by 15 )

x = - 2

Substitute x = - 2 into either (1) or (2) and solve for y

Substituting into (1)

6(- 2) + 2y = - 6

- 12 + 2y = - 6 ( add 12 to both sides )

2y = 6 (divide both sides by 2 )

y = 3

Solution is (- 2, 3)

To determine the system with the same solution.

Substitute the x and y values of the solution into the left side of the equations and if equal to the right side then they are a solution.

(a)

8(- 2) + 4(3) = - 16 + 12 = - 4 = right side

17(- 2) + 2(3) = - 34 + 6 = - 28 = right side

Thus system (a) has the same solution

a. 8x + 4y = −4

17x + 2y = −28

Step-by-step explanation:

{6x + 2y = −6

{3x − 4y = −18

{6x + 2y = −6

{1½x - 2y = −9

___________

[tex]\displaystyle \frac{7\frac{1}{2}x}{7\frac{1}{2} = -\frac{15}{7\frac{1}{2}} \\ \\ x = -2[/tex][Plug this back into both equations above to get the y-coordinate of 3]; [tex]\displaystyle 3 = y[/tex]

Alternatively, you plug the solution of [tex]\displaystyle [-2, 3][/tex] into the top answer choice to get this:

{−16 + 12 = −4 ☑

{−34 + 6 = −28 ☑

These are genuine statements, therefore this system of equations is the system we are looking for.

I am joyous to assist you anytime.

6. is A because the English were jealous that the French were making lots of money from fur trapping.

7. is B because the Indians wanted to drive out the English settlers

8. is A because demand for furs by Europeans was high because all the furs near them were extinct

9. is D because Spain wanted to spread the Catholic religion to the American indians

What he put was correct, because of the right answers

(just reaffirming them)

hope this helps

A =1/2bh

=1/2 (8)9

= 4×9

A = 36cm squared