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3 years ago

How do you compute the area of the triangle

Mathematics

1 answer:

Damm [24]3 years ago

3 0

The area of a triangle can be calculated by

1/2 *b*h

or
bh/2

(b is base;H is height)

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What is f(2) if f(x) = 2x-5 and f(4) if f(x) = -3x + 15<br> step by step please!

mash [69]

Answer:

f(2) = - 1 and f(4) = 3

Step-by-step explanation:

To evaluate f(2), substitute x = 2 into f(x), that is

f(2) = 2(2) - 5 = 4 - 5 = - 1

To evaluate f(4), substitute x = 4 into f(x)

f(4) = - 3(4) + 15 = - 12 + 15 = 3

8 0

3 years ago

HELP!!<br>Find the third term of (x^2+3y)^3

lana66690 [7]

Answer:

$T_{3}=27{x}^{2}y^2$

Step-by-step explanation:

The given binomial expression is:

$( {x}^{2} + 3y)^{3}$

When we compare to:

${(a +b)}^{n}$

We have

$a = {x}^{2}$

$b = 3y \\ n = 3$

The nth term is given by;

$T_{r+1}=^nC_ra^{n-r}b^r$

To find the 3rd term, we put:

$r + 1 = 3 \\ r = 2$

We substitute into the formula to get:

$T_{3}=^3C_2( {x}^{2} )^{3-2}(3y)^2$

We simply:

$T_{3}=3( {x}^{2} )^{1} \times 9y^2$

$T_{3}=27{x}^{2}y^2$

3 0

3 years ago

Does 0.4 equal 0.4%? Explain.

insens350 [35]

Answer:

its 40%

Step-by-step explanation:

ok so its 0.4 and there's a 0 in it so you swop the number and then you get it and. I hope you enjoy.

8 0

4 years ago

‼️‼️solve by substitution {-r+T=5 , -2r+T=4. all these problems w work shown (along w the other problems i posted) r due in the

Luden [163]

Answer:

#4: (r,t) = (1,6) #5: (x, y) = (- $\frac{1}{2}$ ,4) #6: (x, y) = (3, 5) #7: (p, r) = (10, $\frac{14}{3}$ )

Step-by-step explanation:

#4:

Solve for t.

t = 5 + r

Substitute the given value of t into equation

-2r + 5 + r = 4

Solve for r

r = 1

substitute the given value of r into equation

t = 5 + 1

solve for t

t = 6

solution is ordered pair (r, t) = (1,6)

#5:

Solve for y.

y = 2 - 4x

Substitute the given value of y into equation

2x - (2- 4x) = -5

Solve for x

x = - $\frac{1}{2}$

substitute the given value of x into equation

y = 2 - 4x (- $\frac{1}{2}$ )

solve for y

y = 4

solution is ordered pair (x, y) = (- $\frac{1}{2}$ ,4)

#6:

Solve for x

x = -12 + 3y

Substitute the given value of x into equation

2 (-12 + 3y) + y = 11

Solve for y

y = 5

substitute the given value of y into equation

x = -12 + 3 x 5

solve for x

x = 3

solution is ordered pair (x, y) = (3, 5)

Solve for r

r = $\frac{14}{3}$

Substitute the given value of into equation

-2p + 3x $\frac{14}{3}$ = -6

Solve for p

p = 10

solution is ordered pair (p, r) = (10, $\frac{14}{3}$ )

5 0

3 years ago

I really need help thx

grandymaker [24]

Answer:

70°

Step-by-step explanation:

The triangles have the same angles take 180-59-61

5 0

3 years ago