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snow_lady [41]
3 years ago
7

One of the steps in the derivation of the quadratic formula are shown.

Mathematics
2 answers:
defon3 years ago
8 0

Answer:

step 4

Step-by-step explanation:

WARRIOR [948]3 years ago
3 0

Answer:

Step 4

Step-by-step explanation:

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jess has $22 and saves $5 each week rosie has $10 and saves $8 each week how many weeks till they have the same amount of money
Lemur [1.5K]
Answer: 5 weeks

Explanation:
Jess starts with $22 and saves $5 per week, Rosie has $10 and saves $8 per week.

In order to find an equal amount of money between the two girls is by finding a common denominator.

Jess- 22, 27, 32, 37, 42
Rosie- 10, 18, 26, 34, 42

Since we found that they can both end up with $42, after a certain amount of weeks have passed, now you’ll want to count how many numbers are in each row to find the amount of weeks it took to get to an equal amount
4 0
3 years ago
Which correctly describes a cross section of the cube below? Check all that apply.
dmitriy555 [2]

Answer:

A cross section parallel to the base is a square measuring 4 cm by 4 cm.

A cross section perpendicular to the base through the midpoints of opposite sides is a square measuring 4 cm by 4 cm.

A cross section that passes through the entire bottom front edge and the entire top back edge is a rectangle measuring 4 cm by greater than 4 cm.

Step-by-step explanation:

Cross sections parallel and Perpendicular to the base are squares 4 × 4

The diagonal cross section will be a rectangle with base 4 and height

sqrt(4² + 4²) = 4sqrt(2) > 4

7 0
3 years ago
Read 2 more answers
X = 7 + 3y
pogonyaev
<h3>Given Equation:</h3>

x = 7 + 3y

or, x - 3y - 7 = 0 ........ (i)

5x + 6y = 14

or, 5x + 6y - 14 = 0 .........(ii)

<h3>To Find:</h3>

The value of x and y.

<h3>Solution:</h3>

By dividing eq. ii by 2, we get

5/2x + 3y - 7 = 0 ........ (iii)

By adding eq. i and eq. iii, we get

15/2x = 0

or, <u>x = 0</u> ........(iv)

By putting eq.(iv) in eq. (i), we get

0 - 3y - 7 = 0

or, -3y = 7

or, <u>y = </u><u>-</u><u>7/</u><u>3</u>

<h2>Answer: ( 0, -7/3 )</h2>

The value of x and y is 0 and -7/3 respectively.

5 0
3 years ago
Read 2 more answers
What is the volume of this figure?
melomori [17]

<h3><u>Explanation</u> :-</h3>

  • Volume of a square box is equal to the cube of the length of the side of the square box.
  • The formula for the volume is V = s³, where "s" is the length of the side of the square box.

\qquad____________________

It’s given–

  • Length of one side is = 7cm

\bf{\underline{\underline{\dag According\ to\ the\ question:-}}}

\qquad\purple{\bf\longrightarrow  {Volume = 7^3}  }

\qquad\purple{\bf \longrightarrow Volume  =343\: cm^3}

  • Hence, option C is the correct option!
5 0
3 years ago
Read 2 more answers
Can anyone explain me step two (in red)?<br> Thanks in advance.
larisa86 [58]

Answer:

umm

Step-by-step explanation:

5 0
3 years ago
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