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2 years ago

If x <.-4 what must be true?

Mathematics

2 answers:

lesantik [10]2 years ago

8 0

Answer:

x{-5,-6,-7.....,-infinity} so no.c)x is to the left of -4 on number line

Hope it helps

marta [7]2 years ago

7 0

Answer:

Letter C.

Why?

Step-by-step explanation:

a) x is to the left of 4 on a number line

b) x is right of -4 on a number line

c) x is to the left of -4 on a number line

d) x is to the right of -4 on a number line

the number x is to the left (of course) of -4 (x <.-4) on a number line.

HOPE IT HELPS

(FROM CROSS)

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At a swimming race, 3 out of 10 swimmers won a ribbon. What percent of the swimmers won a ribbon?

gogolik [260]

Answer:

30% of the swimmers won a ribbion

and 70% didnt

Step-by-step explanation:

8 0

2 years ago

The third term in an arithmetic sequence is 14 and the fifth term is 20. If the first term is a1, which is an equation for the n

Kruka [31]

Answer:

The equation for nth term is 3n + 5.

Step-by-step explanation:

Let a1 be a,

a3 = a + (n - 1)d

or, 14 = a + (3 - 1)d

so, 14 = a + 2d

Now,

a5 = a + (n - 1)d

or, 20 = a + (5 - 1)d

or, 20 = a + 4d

now,

a + 4d = 20

a + 2d = 14

now,

a + 4d - ( a + 2d) = 20 - 14

or, a + 4d - a - 2d = 6

or, 2d = 6

so, d = 3

Now,

a + 2d = 14

or, a + 2(3) = 14

or, a = 14 - 6

so, a = 8

Now,

an = a + (n - 1)d

or, an = 8 + (n - 1)3

or, an = 8 + 3n - 3

so, an = 3n + 5

5 0

2 years ago

the theaters sell tickets for a concert. tickets for the lower level are $35 each and tickets for the upper level are $25 each.

nasty-shy [4]

Equation 1 for tickets sold:
$35x + $25y = $10,250

Equation 2 for quantity (number #) of tickets sold:
x + y = 350

Use substitution method:

y = 350 - x

35x + 25 (350 - x) = $10,250

35x + $8750 - 25x = $10,250

10x + $8750 = $10,250
- $8,750 -$8,750

10x = 1,500

x = 150

y = 350 - 150

y = 200

Check the answers:

$35 (150) + $25 (200) =

$5,250 + $5,000 = $10,250

4 0

2 years ago

Read 2 more answers

At a store, Susan selected a pumpkin that weighed 35.2 ounces. • Pumpkins cost $1.80 per pound. • There are 16 ounces in 1 pound

Likurg_2 [28]

The pumpkin cost $3.96

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3 years ago

The mail arrival time to a department has a uniform distribution over 5 to 45 minutes. What is the probability that the mail arr

VashaNatasha [74]

Answer:

0.5

Step-by-step explanation:

An uniform probability is a case of probability in which each outcome is equally as likely.

For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.

The probability that we find a value X higher than x is given by the following formula.

$P(X > x) = \frac{b - x}{b-a}$

The mail arrival time to a department has a uniform distribution over 5 to 45 minutes.

This means that $a = 5, b = 45$ .

What is the probability that the mail arrival time is more than 25 minutes on a given day?

$P(X > 25) = \frac{45 - 25}{45 - 5} = 0.5$

So the probability that the mail arrival time is more than 25 minutes on a given day is 0.5.

8 0

3 years ago