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4 years ago

Help asap !! will get branliest.

Mathematics

2 answers:

SIZIF [17.4K]4 years ago

8 0

Answer:

Step-by-step explanation:

liq [111]4 years ago

4 0

It’s B 4/3 hope that’s right

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Which two values of x are roots of the polynomial below?<br> 4x2-6x+1

viva [34]

Answer:

4x2-6x+1

∆=√-6^2-4×1×4

∆=√36-16=√20

∆=2√5

root1=(6+√20)/8

root2=(6-√20)/8

6 0

3 years ago

If a right angle rectangular prism has six sides: a front, a bottom, a back, 8 points

Oksi-84 [34.3K]

The answer is C i just did this

6 0

3 years ago

Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.

erastova [34]

Answer:

C) {6+√43, 6-√43}

Step-by-step explanation:

Applying,

x = [-b±√(b²-4ac)]/2a.................... Equation 1

From the question,

Given: a = 1, b = -12, c = 7

Substitute these values into equation 1

x = [-(-12)±√(-12²+4×1×7)]/2×1

x = [12±√(144+28)]/2

x = [12±√172]/2

either,

x = (12-√172)/2

x = (12-2√43)2

x = (6+√43)

x = (12+√172)/2

x = (12+2√43)/2

x = (6+√43)

Hence,

The right answer is C). {6+√43, 6-√43}

8 0

3 years ago

PLEASE HELO ME AND EXPLAIN PLEASE. AND PLEASE SHOW IN STEPS!! i will mark brainliest if you get it correct!

Dimas [21]

Step-by-step explanation:

The height of the swipe card is given by :

$h(t)=-3t^2+15t+18$ .....(1)

We need to find the maximum height of the swipe card and the time to reach the maximum height.

For maximum height, put dh/dt = 0

So,

$\dfrac{d}{dt}(-3t^2+15t+18)=0\\\\-9t+15=0\\\\t=\dfrac{15}{9}\\\\t=1.67\ s$

It will take 1.67 seconds to reach the maximum height.

Now, put t = 1.67 s in equation (1).

$h(1.67)=-3(1.67)^2+15(1.67)+18\\\\=34.68\ feet$

Hence, the maximum height of the swipe card is 34.68 feet and the time to reach this height is 1.67 s.

4 0

3 years ago

Kendall bought a coat that was on sale for 20% off its original price. She paid $76.32 for the coat, whichincluded a 6% sales ta

Diano4ka-milaya [45]

Answer:

I am guessing that the answer is $69.99 because well I did the math

5 0

3 years ago

Help asap !! will get branliest.​

Help asap !! will get branliest.