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NNADVOKAT [17]
3 years ago
11

Consider the quadratic function f(x) = –2x2 + 5x – 4. The leading coefficient of the function is .

Mathematics
2 answers:
lesya692 [45]3 years ago
9 0

Answer:

-2

Step-by-step explanation:

const2013 [10]3 years ago
4 0

Answer:

x = 8/5

Step-by-step explanation:

0 = - 2 x 2+5 x - 4

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Pls help!!!!Shawn used 15 centimeters of tape to wrap 5 presents . How much tape will Shawn need I all if he has to wrap 13 pres
Ilia_Sergeevich [38]

Answer:39

Step-by-step explanation:

15÷5=3

3×13=39

3 0
4 years ago
suppose 25 out of 175 people said they like to play disc golf and out 5 out of every twelve of the players have a personalized b
Serhud [2]
We have \frac{5}{12} of 252 people who have a personalized black disc

Number of people who would have personalized flying disc = \frac{5}{12}*252= \frac{2*252}{12}=105 people

Then we work out the number of people who like to play disc golf:
\frac{25}{175}*105= \frac{25*105}{175}=15 people

So we have 15 people who like to play disc golf and have personalised black disc.
8 0
4 years ago
grandma Jean can make two blankets in three days if grandma Jean needs to make 14 blankets how many days will it take her
AveGali [126]
7 times three equals 21
hope this helped

3 0
3 years ago
Read 2 more answers
Jordan estimated that his paper airplane would fly 42 feet. It actually traveled 50 feet. What was the percent error?
topjm [15]

\huge \mathcal{ Answer࿐}

  • Error (e) = 50 - 42 = 8 feet

  • assumed value (a) = 42 feet

\boxed{ \mathrm{ \% \: error =  \dfrac{error}{assumed \: value}  \times 100}}

  • \mathrm{ \% \: error  =\dfrac{8}{42}}  \times 100

  • \mathrm{ \% \: error  = \dfrac{800}{42} }

  • \mathrm{ \% \: error  = 19.04 \%}

_____________________________

\mathrm{ \#TeeNForeveR}

6 0
3 years ago
It is recommended that adults get 8 hours of sleep each night. A researcher hypothesized college students got less than the reco
yanalaym [24]

Answer:

Given:

Sample size, n = 20

Significance level = 5% = 0.05

Mean, u = 8

Here, the sample mean was not given.

Here the null and alternative hypothesis will be:

H0 : u = 8

H1 : u < 8

In this case, since there is no evidence to reject the null hypothesis, H0, at 0.05 level of significance, we can say that the p-value is greater than the level of significance, 0.05.

5 0
3 years ago
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