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kogti [31]
4 years ago
15

Help me guys!!Please

Mathematics
1 answer:
goldfiish [28.3K]4 years ago
7 0

Answer:

i believe is A

Step-by-step explanation:

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Find the value(s) of "k" that will cause the equation 4x^2 +kx + 4 to have one real solution.
Andreas93 [3]

Answer:  k = {8, -8}

<u>Step-by-step explanation:</u>

In order for a quadratic equation to have exactly one solution, the discriminant must equal zero.       →        b² - 4ac = 0

  4x² + kx + 4 = 0

  ↓       ↓      ↓

a=4    b=k    c=4

b² - 4ac = 0

k² - 4(4)(4) = 0

k²             = 64

           k = √64

           k = ± 8

6 0
4 years ago
Please solve this in 2 parts as stated... thank you!
fredd [130]

Solve the equation we have that:

a. S = 3V²/ 4

b. S = 108 feet

<h3>How to solve the parameters?</h3>

We have the equation to be;

V = 2√3S

Where;

  • V is the speed
  • S is the length

Let's make S the subject from the formula, divide both sides by 2√2S = v/ 2. Take square of both sides:

(\sqrt{3S} )^2 = \frac{V^2}{4}\\3S = \frac{V^2}{4}

Now we need to divide both sides by three:

S = 3V²/ 4

b. If v = 12miles per hour, substituting in the equation found earlier:

S = 3 (12²)/ 4

S= 432/ 4

S = 108 feet

Thus, the formula for the length is S = 3V²/ 4

Learn more about speed here: brainly.com/question/7359669

#SPJ1

4 0
1 year ago
Two similar triangles ABC and PQR are shown
PolarNik [594]

Answer:

i think it's c:r

3 0
3 years ago
Please help me!! I need help
Setler [38]

Answer:

c=l/--a^2+b^2=l/--45^2+20^2≈49.24429

Step-by-step explanation:

l/-- mean square root

^ means squared/ exponent

7 0
3 years ago
Read 2 more answers
How do I rename the number 5 hundreds 8 tens
Phantasy [73]
5 hundred is 500

8 tens is 80

So 5 hundred 8 tens is <em><u>580</u></em>

7 0
3 years ago
Read 2 more answers
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