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True [87]
2 years ago
15

jana ran the first 3.5 miles of a 5 mile race in 1/3 hour what was the rate in miles per hour for this first part of the race? e

xplain how you solved the problem
Mathematics
1 answer:
Grace [21]2 years ago
4 0
2.8 1/3 of 3.5 is .7    .7 - 3.5=2.8
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Help plz go faster<3
kotegsom [21]

most to least likely to happen:

land on a number less than 3

land on a section with a 1

land on an even number

hope this helps!! :)

5 0
3 years ago
5. Solve the equation z^2 + 4z - 9 = 0 by completing the square.
Luba_88 [7]

Answer:

A. Z = 2 + N13

Step-by-step explanation:

Let's solve your equation step-by-step.

0=z2+4z−9

Step 1: Subtract z^2+4z-9 from both sides.

0−(z2+4z−9)=z2+4z−9−(z2+4z−9)

−z2−4z+9=0

For this equation: a=-1, b=-4, c=9

−1z2+−4z+9=0

Step 2: Use quadratic formula with a=-1, b=-4, c=9.

z=

−b±√b2−4ac

2a

z=

−(−4)±√(−4)2−4(−1)(9)

2(−1)

z=

4±√52

−2

z=−2−√13 or z=−2+√13

8 0
2 years ago
PLS HELP!!! <br> Thank You!!!
denis-greek [22]

Answer:

21 years

Step-by-step explanation:

Given

Required

Determine the years it'll take to grow to the final height

This question depicts arithmetic progression and will be solved using

Where

Substitute these values in the given formula;

Convert all fractions to decimal

Open Brackets

Collect Like Terms

Divide both sides by 1.75

Then you have your answer.

Hope this helped!!<3

8 0
2 years ago
Read 2 more answers
Solve for x in the equation 3 x squared minus 18 x + 5 = 47.
svetlana [45]

Answer:

(4+√142)/(3) or x=(4-√142) /3

Step-by-step explanation:

(4+√142)/(3) or x=4-√142 /3

4 0
3 years ago
1 3/4d= 14 what is the value of d
Veronika [31]

1 3/4d= 14

7/4d = 14

d = 8

Hope this helps! ;)

8 0
3 years ago
Read 2 more answers
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