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3 years ago

Which statement is a counterexample to the following conjecture?

Mathematics

2 answers:

hram777 [196]3 years ago

5 0

Answer:

D. A cat is a mammal.

Step-by-step explanation:

Reason being is because a cat isn't a dog, yet it's still a mammal.

k0ka [10]3 years ago

3 0

Answer:

c a spider is not a mammal

Step-by-step explanation:

i mean not all dogs r mammals i mean common sense

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The revenue for a company producing widgets is given by y = -20x2 - 50x + 200, where x is the price in dollars for each widget.

lisov135 [29]

Answer:

The price is x = $2.779

Step-by-step explanation:

From the question we are told that

The revenue is $y = - 20x^2 - 50 x + 200$

The cost of production is $y = 30 x - 10$

Generally at break even point the cost of production is equal to the revenue

$-20x^2 -50x + 200 = 30x-10$

=> $20x^2 +20 -210 = 0$

Using the quadratic formula to solve this equation we have that

x = $2.779

6 0

3 years ago

Read 2 more answers

Find the difference of 25 and 0.88

Fed [463]

Answer:

24.12

Step-by-step explanation:

The term 'difference' implies subtraction.

25 - 0.88 = 24.12

4 0

3 years ago

Read 2 more answers

Granny had 25 bananas.

Ede4ka [16]

Answer:

Step-by-step explanation:

She needs 3 bananas for each loaf of banana bread.

She needs 3*9=27 bananas for 9 loaves.

She has only 25, she is 2 bananas short

7 0

2 years ago

Read 2 more answers

A Scientist had a bottle that contains 56.6 mL of solution.She used 3.2 mL of the solution for an experiment.She poured half of

mario62 [17]

56.6 - 3.2 = 53.4
53.4 / 2 = 26.7
26.7 - 6 = 20.7ml
For the final answer she has 20.7ml of solution left.

Please mark as brainliest if you can

7 0

3 years ago

Which logarithmic equation is equivalent to the exponential equation below?

aleksandr82 [10.1K]

Option B: $\ln 6=5 x$ is the correct answer.

Explanation:

The exponential equation is $e^{5 x}=6$

If $f(x)=g(x)$ , then $\ln (f(x))=\ln (g(x))$

Thus, the equation becomes

$\ln \left(e^{5 x}\right)=\ln (6)$

Applying log rule, $\log _{a}\left(x^{b}\right)=b \cdot \log _{a}(x)$ and thus the equation becomes

$5 x \ln (e)=\ln (6)$

Since, we know that, $\ln (e)=1$ , using this we get,

$5 x=\ln (6)$

Hence, the logarithmic equation which is equivalent to the exponential equation $e^{5 x}=6$ is $\ln 6=5 x$

Thus, Option B is the correct answer.

7 0

3 years ago