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alex41 [277]
3 years ago
13

The square rootof which number is rational a7. b 1.96. c. 0.04. d. 13​

Mathematics
2 answers:
PSYCHO15rus [73]3 years ago
8 0

Answer:

B and C

Step-by-step explanation:

7 = 7

1.96 = \frac{196}{100}

0.04 = \frac{4}{100}

13 = 13

artcher [175]3 years ago
3 0

Answer:

B and C

Step-by-step explanation:

We need to find which one of these numbers is a perfect square. We know 7 and 13 can be eliminated since they're prime numbers so they can't be perfect squares. B and C are both perfect squares so that's the answer.

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X² + 3x + k = 0<br>pls help​
denis-greek [22]

Answer:

\left(h,\:k\right)=\left(-\frac{3}{2},\:\frac{9}{4}\right),\:p=-\frac{1}{4}

Step-by-step explanation:

x^2+3x+y=0

4\left\bigg(-\frac{1}{4}\right)\left\bigg(y-\frac{9}{4}\right)=\left\bigg(x-\left\bigg(-\frac{3}{2}\right)\right)^2

\bold{\mathrm{Therefore\:parabola\:properties\:are:}}

\left(h,\:k\right)=\left(-\frac{3}{2},\:\frac{9}{4}\right),\:p=-\frac{1}{4}

3 0
2 years ago
a circus charges $2.50 for kids tickets and $6 for adult tickets last week and twice as many kids attended the circus than adult
aliina [53]
Let
x-----------> the number of kids
y----------> the number of adults

we know that
2.5x+6y=$7150---------> equation 1
x=2y-------------> equation 2
substitute 2 in 1
2.5*[2y]+6y=7150-----> 5y+6y=7150----> 11y=7150-----> y=650
x=2y----> x=2*650----> 1300

the answer is
the number of kids is 1300
5 0
2 years ago
Y=-4.3x-1.3<br> Y=1.7x+4.7
Contact [7]

Answer:

0.566666666

Step-by-step explanation:

5 0
3 years ago
1. Three friends pooled their money to purchase a new game system that costs $298. One person
iragen [17]

Answer:

First person: $107

Second person: $98

Third person: $93

Step-by-step explanation:

Let be "f" the amount of money (in dollars) that the first person contributed to the purchase, "s" the amount of money (in dollars) that the second person contributed to the purchase and "t" the amount of money (in dollars) that the third person contributed to the purchase.

With the information given in the exercise, you can set up the following equations:

Equation 1 → f+s+t=298

Equation 2 → s=f-9

Equation 3 → t=f-14

Substitute the Equations 2 and 3 into the Equation 1 and then solve for "f":

f+(f-9)+(f-14)=298\\\\3f-23=298\\\\f=\frac{321}{3}\\\\f=107

Finally, substitute the value of "f" into the Equation 2 and then into the Equation 3, in order to find the values of "s" and "t".

Therefore, you get:

s=107-9\\\\s=98\\\\\\t=107-14\\\\t=93

5 0
3 years ago
Ben is reading a book. Rounded to the nearest ten, he reads 150 pages. What is the least number of pages he could read?
Semenov [28]
145 pages because 145 would round up to 150 but anything below 145 would round to 140
7 0
2 years ago
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