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cluponka [151]
3 years ago
8

What are the zeros of the quadratic function f(w)=2w^2+7w-4

Mathematics
2 answers:
gogolik [260]3 years ago
3 0

Answer:f(w)=w^3 + 7/2w^2-4w+c

Step-by-step explanation:

Jet001 [13]3 years ago
3 0

Answer: w = 1/2 and w = -4

Step-by-step explanation:

2w^2+7w-4=0

The quadratic formula is (-b+ - √b^2-4ac)/2a

In this case a=2, b=7, c= -4

(-7+ - √7^2 - 4(2)(-4))/2(2)

(-7+ - √49+32)/4

(-7+ - √81)/4

(-7+9)/4 and (-7-9)/4

2/4        and -16/4    

1/2         and -4

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In Ms. Henrick's class, there are 10 boys and 12 girls. What is the ratio of boys to girls? Express your answer as a fraction in
OleMash [197]

Answer:

5:6

Step-by-step explanation:

the ratio before would be 10/12 so you would have to divide both sides by 2 so you would get 5/6.Hope this helped

4 0
3 years ago
Blank divided by 7>800
djverab [1.8K]
Hi there

Replace the blank space by x

so x/7 > 800
All you have to do is cross-multiply

x > 7*800
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I hope that's help ! 

8 0
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Ellie puts 35 quarter into stacks with the same number of quarter in each stack
ki77a [65]

Answer:

Ellie can make eight stacks of quarters with four quarters in each stack

Step-by-step explanation:

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3 years ago
Please help me this will mark brainiest thx I will appreciate it thank you
Savatey [412]

Answer:

z=40 degrees

x=90 degrees

y=40 degrees

Step-by-step explanation:

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6 0
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kolezko [41]
Solve for x given two sides

Solution

x is an angle hence we are gonna use the formula Sin

Sin 0 = opp/hyp

0 represents theta.


Sin 0 = opp/hyp
Sin 0 = 27/33

Put 27/33 in decimal form

= 0.8181

Transpose to make 0 the subject


Sin 0 = 0.8181

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When adding Sin from one side to another it becomes Sin inverse.

0 = Sin-1 08181

Now we find the answer

0 = Sin-1 0.8181

= 54.89 degrees

Therefore x is equal to 54.9 to the nearest tenth.
6 0
3 years ago
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