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3 years ago

Can someone answer these pls

Mathematics

1 answer:

Ganezh [65]3 years ago

3 0

The answer is the last one because it’s the only one with 25

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You can use the what of a quadratic equation to determine the number and type of solutions of the equation?

adoni [48]

You can use the <u>determinant</u><u> (square root)</u> of a quadratic equation to determine the number and type of solutions of the equation.

$\sqrt{b^{2}-4ac}$ > 0 → 2 real solutions

if $\sqrt{b^{2}-4ac}$ is a perfect square, then rational sol'ns

if $\sqrt{b^{2}-4ac}$ is not a perfect square, then irrational sol'ns

$\sqrt{b^{2}-4ac}$ = 0 → 1 real solution (double root)

$\sqrt{b^{2}-4ac}$ < 0 → 2 imaginary(complex) solutions

3 0

4 years ago

Please answer will give brainliest

Marysya12 [62]

Answer: Your answer would be D (:

Step-by-step explanation: Just pretend that each cube is worth 7 so you would multiply 7x7x7x7x7x7= 42(: Hope This Helped!!!!(:

6 0

4 years ago

The output of an economic system Q, subject to two inputs, such as labor L and capital K, is often modeled by the Cobb-Dougl

Anna35 [415]

Answer:

Step-by-step explanation:

Given

Economic system Q is given by

$Q=cL^aK^b$

also $a+b=1$

if $Q=12,200$

$a=\frac{1}{6}$

$b=\frac{5}{6}$

$c=42$

substitute these values

$12,200=42\times (L)^{\frac{1}{6}}K^{\frac{5}{6}}$

$(L)^{\frac{1}{6}}K^{\frac{5}{6}}=\frac{12,200}{42}$

$K^{\frac{5}{6}}=\frac{12,200}{42(L)^{\frac{1}{6}}}$

$K=(\frac{12,200}{42})^{\frac{6}{5}}\times \frac{1}{L^{5}}$

differentiate w.r.t to L to get $\frac{dK}{dL}$

$\frac{dK}{dL}=(\frac{12,200}{42})^{\frac{6}{5}}\times (-5)\times L^{-6}$

$\frac{dK}{dL}=-5(\frac{12,200}{42})^{\frac{6}{5}}\times \frac{1}{L^6}$

$\frac{dK}{dL}=-\frac{4515.466}{L^6}$

6 0

3 years ago

Taylor Swift bought 3 cokes and 2 hamburgers for $15. Kelly Clarkson bought 2 cokes and a hamburger for $9. How much did each co

Afina-wow [57]

$3 each cone I think

7 0

3 years ago

Ashad is rewriting the expression 28 a + 36 a b as a product. Which statements about the expression are accurate and relevant to

Gala2k [10]

Answer:

(B)The GCF of the numbers(28 and 36) in each term in the expression is 4.

(C)The GCF of the variables(a and ab) in each term in the expression is a.

(E)The factored form of the expression is 4a(7+9b)

Step-by-step explanation:

Given the expression: $28a+36ab$

If we write it as a product, we obtain:

$28a+36ab=4a(7+9b)$

We can see the following

The GCF of the numbers(28 and 36) in each term in the expression is 4.
The GCF of the variables(a and ab) in each term in the expression is a.
The factored form of the expression is 4a(7+9b)

The correct options are B, C, and E.

8 0

3 years ago