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labwork [276]
4 years ago
12

Using the quadratic formula to solve x2 = 5 – x, what are the values of x?

Mathematics
2 answers:
kiruha [24]4 years ago
8 0

Answer:

x^2=5-x

x^2+x-5=0

x=-1± √(1)^2-4(1)(-5)   /2(1)

-1± √21   /2

Step-by-step explanation:

KiRa [710]4 years ago
7 0

Answer:

The answer will be A.  -1± √21   /2

Step-by-step explanation:

I hope it helps

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4log, 11 – 20log 35
ANEK [815]

Answer:

  -26.71579

Step-by-step explanation:

Any scientific or graphing calculator can evaluate this expression for you.

4 0
4 years ago
Xavier, Yolanda and Sara shared some money. Yolanda received 40% more money than Xavier, and Zara received 60% of Yolanda's shar
leonid [27]

Answer:

Step-by-step explanation:

Xavier, Yolanda and Zara shared some money.

Let x represent Xavier's share

Let y represent Yolanda's share

Let z represent Zara's share.

Yolanda received 40% more money than Xavier. This means that

y = x + 40/100×x = x + 0.4x = 1.4x

Zara received 60% of Yolanda's share. This means that

z = 60/100× 1.4 = 0.6×1.4 = 0.84x

. If Zara received $1,176, then,

0.84x = 1176

x = 1176/0.84 = 1400

y = 1.4 × 1400 = $1960

z = 0.84 × 1400 = $1176

The sum of the money is

1400 + 1960 + 1176 = $4536

6 0
3 years ago
Use compatible numbers to estimate:4×26×7
Vlada [557]

4 times 25= 100 100 times 7= 700

mark brainliest plsss

7 0
4 years ago
A trinomial is also a polynomial
kap26 [50]
Yes, a trinomial is also a polynomial.
6 0
3 years ago
Read 2 more answers
Please help, having trouble. Show all work if you can :) Photo is attached.
Leto [7]

Answer:

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