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3 years ago

I need help immediately

Mathematics

1 answer:

vekshin13 years ago

5 0

We we multiply we add exponents of like bases. Of course we multiply constants.

7z²5z⁴d³d⁸ =(7)(5)z²z⁴d³d⁸ = 35z²⁺⁴d³⁺⁸ = 35z⁶d¹¹

Answer: 35z⁶d¹¹

Make up a problem?

(-2x²yz)(3xy²z)(4xyz²) = (-2)(3)(4) x²⁺¹⁺¹y¹⁺²⁺¹z¹⁺¹⁺² = -24x⁴y⁴z⁴

How do I know it's right? I guess from doing a lot of them; these aren'tthat hard.

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True or False?

neonofarm [45]

$FALSE!\\The\ segments\ below\ couldn't\ form\ a\ triangle.\\\\a,b,c-lengths\ sides\ of\ a\ triangle,\ then:\\\\a+b > c\\a+c > b\\b+c > c\\\\Here:a=9;\ b=4;\ c=15\\\\a+b=9+4=13 < 15!!!!$

7 0

3 years ago

Can someone help me ? i have no clue how to figure this out

Ad libitum [116K]

$\cos t (\sec t - \cos t) = \sin^2 t$

$\cos t (\dfrac{1}{\cos t} - \cos t) = \sin^2 t$

$\dfrac{\cos t}{\cos t} - \cos^2 t = \sin^2 t$

$1 - \cos^2 t = \sin^2 t$

Use the identity: $\sin^2 t + \cos^2 t = 1$ and solve for $\sin^2 t$ . You get: $\sin^2 t = 1 - \cos^2 t$

Do the substitution on the left side to get:

$\sin^2 t = \sin ^2 t$

5 0

3 years ago

Read 2 more answers

Rachel decided to have bouncy balls as a party favor. She determines that her ratio of bouncy ballsTwo guest is 9:3. Explain how

crimeas [40]

Just multiply or divide the ratio to get each number to 30.

7 0

3 years ago

Read 2 more answers

so, I need to just find the missing length, if you can, please explain the pythagorean theorem to find the missing side. I don't

ANTONII [103]

The surface area of the triangular prism is 828 in².

Solution:

Let the missing length of the triangle be x.

Using Pythagoras theorem,

In right triangle, square of the hypotenuse is equal to the sum of the squares of other two sides.

$12^2+x^2=15^2$

$144+x^2=225$

Subtract 144 on both sides of the equation.

$x^2=225-144$

$x^2=81$

Taking square root on both sides, we get

x = 9

The missing length of the triangle is 9 in.

Area of the front triangle = $\frac{1}{2}\times 12\times 9$

= 54 in²

Area of the back triangle = $\frac{1}{2}\times 12\times 9$

= 54 in²

Area of the sloping rectangle = 20 × 9

= 180 in²

Area of the back rectangle = 20 × 12

= 240 in²

Area of the base rectangle = 20 × 15

= 300 in²

Total area = 54 in² + 54 in² + 180 in² + 240 in² + 300 in²

= 828 in²

The surface area of the triangular prism is 828 in².

4 0

3 years ago

Find the mid point of points A (-8, -8) and B (-1, -3) graphically<br><br> its deltamath

Misha Larkins [42]

-4.5,-5.5

Step-by-step explanation:

-8-1/2 , -8-3/2

=-4.5 , -5.5 (midpoint)

7 0

2 years ago