3 years ago

What is the solution to the system of equations. y= x - 1 x + 4y = 16

Mathematics

1 answer:

inna [77]3 years ago

5 0

Answer:

x=4 y=3

Step-by-step explanation:

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What is the circumference (in inches) of a circle with radius of 5 inches? Use 3.14 for n.

Yuliya22 [10]

Answer:

A. 31.4 in.

Step-by-step explanation:

Formula for the circumference:

C = dπ (d = 2r)

Therefore:

C = 10π

C = 10 · 3.14

C = 31.4 in.

6 0

3 years ago

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Find the value of this expression if x= -7<br><br> x^2+5/x+1

Ray Of Light [21]

Answer:

-9

Step-by-step explanation:

Replace x with -7 in the expression:

x^2 + 5 / x + 1

-7^2 + 5 / -7 + 1

49 + 5 / -6

54/-6

simplify the fraction

9/-1 = -9

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3 years ago

What is the approximate area of a circle with a diameter of 50 centimeters? use π ≈ 3.14. 87.9 square centimeters 379.9 square c

zheka24 [161]

A=πr^2
The answer is 1962.5

6 0

3 years ago

Z-49+851=100+21z /////////////////////////////////////////////////

WITCHER [35]

Answer:

z=35.1

Step-by-step explanation:

4 0

3 years ago

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A fair spinner has 9 equal sections: 2 red, 3 blue and 4 green.

Alex17521 [72]

Answer:

The Probability of not getting two consecutive reds is 0.9506

Step-by-step explanation:

Number of sections = 9

Number of red sections = 2

Number of blue sections = 3

Number of green sections = 4

Probability of getting two consecutive reds = $\frac{2}{9} \times \frac{2}{9}=\frac{4}{81}$

So,The Probability of not getting two consecutive reds = $1- \frac{4}{81}=\frac{77}{81}=0.9506$

Hence The Probability of not getting two consecutive reds is 0.9506

3 0

3 years ago