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3 years ago

How you you work out this question?

Mathematics

2 answers:

r-ruslan [8.4K]3 years ago

5 0

Answer:

k < 0 or k > 4

Step-by-step explanation:

kx² + kx + 1 = 0

Two solutions:

b²-4ac > 0

(k)²-4(k)(1) > 0

k² - 4k > 0

k(k-4) > 0

k < 0 or k > 4

krok68 [10]3 years ago

3 0

Answer:

k<0 or k>4

Step-by-step explanation:

In the generic equation ax² + bx + c = 0, there are two solutions only if discriminant D>0 where D = b²-4ac.

Mapping your equation on the generic means that:

a = k

b = k

c = 1

So when we have to solve D>0 we solve:

k² - 4k > 0

k(k-4) > 0

roots are k=0 and k=4

k² - 4k > 0 when k<0 or k>4

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Simplify negative nine over six divided by three over negative two

OLga [1]

Answer:

1/4

Step-by-step explanation:

I used a calculator

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3 years ago

Mrs. Buback is going to celebrate Thanksgiving with her family in Pennsylvania which is 200.7 miles from NY. She drove for 4 hou

d1i1m1o1n [39]

Answer:

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Step-by-step explanation:

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3 years ago

Find the amount of the discount on a $234 item with a discount of 15%. A. $40.00 B. $23.40 C. $35.10 D. $35.01

Nady [450]

234 * 0.15 = 35.1

Your answer is C. $35.10.

6 0

3 years ago

Read 2 more answers

A candy store sells bags of fruit-flavored candy for $2 and chocolate candy for $3. Jasmine spends $54 on candy for her friends.

34kurt

Answer:

2x + 3y = $54

Step-by-step explanation:

Standard Form ~ Ax + By = C

A and B in this case are just going to be numbers, they are just for substitution purposes.

Since x is fruit flavored candy and y is Chocolate, we can substituce the Fruit for A and Chocolate for B.

Now, we have 2x + 3y = C

The C is going to be the total cost. Therefore we have ~

2x + 3y = $54

Have a great day,

PumpkinSpice1♥

8 0

3 years ago

he accompanying data provide the heights of some singers in a chorus, collected so that the singers could be positioned on stag

stellarik [79]

The image of the histogram distribution is missing, so i have attached it.

Answer:

Option C: The distribution is unimodal. Its mode is near 60 inches

Step-by-step explanation:

Mode simply means the most occurring value in a set of data.

Now, for histogram, the mode is the highest peak represented in the bars.

Now, from the image attached, it is seen that there is a clear highest peak. Thus, the histogram has only one peak and it can be described as unimodal.

We are not given the mode height from the histogram but we can see that it is between 60 and 68 inches. And if carefully observed it will have a value closer to 60.

Thus,option C is correct.

3 0

3 years ago