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4 years ago

18. Let f(x)=x²+2x+c

Mathematics

1 answer:

SVETLANKA909090 [29]4 years ago

3 0

Answer:c<1

Step-by-step explanation:

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Riverside Elementary School is holding a school-wide election to choose a school color. Five-eighths of the votes were for blue,

Mnenie [13.5K]

Answer:

Step-by-step explanation:

Let the total number of votes to choose a color = x

Number of votes for blue = $\frac{5}{8}\times x$

Remaining votes = x - $\frac{5}{8}\times x$

= $\frac{8x-5x}{8}\times x$

= $\frac{3}{8}\times x$

Votes for green = $\frac{5}{9}\times (\text{Remaining votes})}$

= $\frac{5}{9}\times \frac{3x}{8}$

= $\frac{5}{24}\times x$

Finally remaining votes = $\frac{3x}{8}-\frac{5x}{24}$

= $\frac{9x-5x}{24}$

= $\frac{4x}{24}$

= $\frac{x}{6}$

Since these votes are for red therefore,

$\frac{x}{6}$ = 48

x = 48×6

= 288

a) Votes for blue are $\frac{5x}{8}$

Therefore, exact number for blue votes = $\frac{5\times 288}{8}$

= 5×36

= 180

b). Votes for green = $\frac{5x}{24}$

= $\frac{5\times 288}{24}$

= 60

c). Since 25 students were absent on that day of the vote, number of students at Riverside Elementary School = 288 + 25

= 313

d). Since seven tenths of the votes for blue were made by the girls.

Therefore, number of girls voted for blue = $\frac{7}{10}\times 180$

= 7×18

= 126

Since total votes made = 288

Therefore, half of the votes made = $\frac{288}{2}$

= 144

Now it's clear that number of votes made by girls is less than half of all the votes.

e). 126 girls voted for blue.

5 0

3 years ago

What number has the same value of 28 tens

iren2701 [21]

The answer is 280 this is your answer

5 0

4 years ago

Read 2 more answers

What is the answer needdd it

Naddik [55]

I think it would be b or c

3 0

3 years ago

Conner and Jana are multiplying (3568)(39610). Conner's Work Jana's Work (3568)(39610) = 35 + 968 + 10 = 314618 (3568)(39610) =

natulia [17]

Answer:

Step-by-step explanation:

Neither of them has partitioned the values correctly. The answer to the sum 3568 × 39610 =141 328 480.

They tried the partition method but did not partitioned it correctly.

3568 = 3000+500+60+8

39610 = 30000+9000+600+10

Now multiply each value of 3568 with the values of 39610. Like:

3000 * 30000

3000 * 9000

3000 * 600

3000 * 8

and so on....

4 0

4 years ago

Read 2 more answers

Please help me with this I'll give brainliest

valina [46]

Answer:

24. x = 8.

25. x = -9, 10.

Step-by-step explanation:

The zeros of the functions are the solutions to the equation when y=0. To find the solution, factor each equation.

24. Look for two factors that multiply to 64 and add to -16. The factors are -8 and -8. Write them in binomial forms.

(x-8)(x-8)

So x = 8.

25. Look for two factors that multiply to -90 and add to -1. The factors are 9 and -10. Write them in binomial forms.

(x+9)(x-10)

So x = -9, 10.

3 0

3 years ago