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3 years ago

Chantelle has 23 cookies. She gives 3 3/6 to her friend Emily how many does she have now

Mathematics

1 answer:

malfutka [58]3 years ago

3 0

3 3/6 is the same as 3 1/2, so 23 take 3 is 20. 20 take 1/2 is 19 1/2.

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Use the quadratic f(x)=x²+3x-4 and use any method to solve for the Zeros. Use the same function to solve for x when y is 6. F(x)

Katyanochek1 [597]

Answer:

a) $f(x) = (x+4)\cdot (x-3)$ , b) $x = -5$ or $x = 2$ , c) $x \approx 2.531$ or $x \approx -5.531$

Step-by-step explanation:

a) The function is solved by factorization:

$f(x) = (x+4)\cdot (x-3)$

b) The function has the following form:

$x^{2} + 3\cdot x - 4 = 6$

$x^{2} + 3\cdot x - 10 = 0$

The roots of the polynomial are found by factorization:

$(x+5)\cdot (x-2) = 0$

$x = -5$ or $x = 2$

c) The function has the following form:

$x^{2} + 3\cdot x - 4 = 10$

$x^{2} + 3\cdot x - 14 = 0$

The roots of the polynomial are determined by the General Formula for the Second-Order Polynomial:

$x_{1} = \frac{-3+\sqrt{3^{2}-4\cdot (1)\cdot (-14)}}{2\cdot (1)}$

$x_{1} \approx 2.531$

$x_{2} = \frac{-3-\sqrt{3^{2}-4\cdot (1)\cdot (-14)}}{2\cdot (1)}$

$x_{2} \approx -5.531$

8 0

4 years ago

What are the solutions to the equation |3x-15|=0?

ozzi

$|a| = 0\iff a=0\\\\\text{therefore}\\\\|3x-15|=0\iff3x-15=0\ \ \ \ |+15\\\\3x=15\ \ \ \ |:3\\\\\boxed{x=5}$

4 0

3 years ago

Pjpjpjpjpjpj<br>pjpjpjpjpjpj

bogdanovich [222]

Answer:

Hmm tough question I'm pretty sure the answer is pj.

Step-by-step explanation:

In the question they are very upfront with the answer, it's a trick question to make you believe it's hard or there is no answer. So, with that being said the answer is pj.. Happy to help anytime. :)

8 0

3 years ago

Read 2 more answers

Evaluate the following expression:

Alja [10]

Answer:the last one I think I really don’t know

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Param needs 375 g of chocolate chips for one batch of cookies.He has two 2-kg bags of chocolate chips. Does Param have enough ch

Assoli18 [71]

Answer:

No, Param doesn't have enough to make 12 batches of cookies.

Step-by-step explanation:

2 kg = 2,000 grams

375 g = 1 batch

375 * 12 batches = 4,500 grams

4,500 g > 2,000 g

Therefore, Param doesn't have enough.

4 0

4 years ago