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Ainat [17]
3 years ago
8

Write an equivalent expression in expanded form.

Mathematics
2 answers:
Anon25 [30]3 years ago
7 0
Expanded form is 4y - 13/5
or 4y - 2.6
Sergio [31]3 years ago
7 0
1/5(20y-13)
1/5*20y-1/5*13
4y-13/5
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A bag holds 11 beads. 7 are red, the rest are white. Two beads are taken at random from the bag. What is the probability that on
babunello [35]

Answer:

  The probability of the first draw is 100%, because the bead will be either red or white.  For the second draw, a different color must be drawn.

  So, if draw 1 is white, then the probability of draw 2 being red is 7/10.  and if the first draw is red, then the probability of draw two being white is 5/10.

5 0
3 years ago
Read 2 more answers
6 + 12 = 25 -<br> Which value makes the number sentence true?<br> A. 6<br> B. 7<br> C. 12<br> D. 18
max2010maxim [7]

Answer:

7

Step-by-step explanation:

6+12=18

25-7=18

7 makes the sentance true.

4 0
3 years ago
magus hosted a party and has 1/4 of a pizza party left over. six people will share the leftovers equally. what is a reasonable a
laiz [17]
We’ll divide 1/4 by 6. So 1/4 x 1/6 is 1/24.

ANSWER:

1/24. Hope this helped. Have a great day. A thank you and (or) a brainliest is always appreciated! Goodbye!
8 0
3 years ago
Find the zeros of y = x2 – 6x – 4 by completing the square.
katrin [286]

Answer:

The solutions to the quadratic equations are:

x=\sqrt{13}+3,\:x=-\sqrt{13}+3

Step-by-step explanation:

Given the function

y\:=\:x^2\:-\:6x\:-\:4

substitute y = 0 in the equation to determine the zeros

0\:=\:x^2\:-\:6x\:-\:4

Switch sides

x^2-6x-4=0

Add 4 to both sides

x^2-6x-4+4=0+4

Simplify

x^2-6x=4

Rewrite in the form (x+a)² = b

But, in order to rewrite in the form x²+2ax+a²

Solve for 'a'

2ax = -6x

a = -3

so add a² = (-3)² to both sides

x^2-6x+\left(-3\right)^2=4+\left(-3\right)^2

x^2-6x+\left(-3\right)^2=13

Apply perfect square formula:  (a-b)² = a²-2ab+b²

\left(x-3\right)^2=13

\mathrm{For\:}f^2\left(x\right)=a\mathrm{\:the\:solutions\:are\:}f\left(x\right)=\sqrt{a},\:-\sqrt{a}

solve

x-3=\sqrt{13}

Add 3 to both sides

x-3+3=\sqrt{13}+3

Simplify

x=\sqrt{13}+3

now solving

x-3=-\sqrt{13}

Add 3 to both sides

x-3+3=-\sqrt{13}+3

Simplify

x=-\sqrt{13}+3

Thus, the solutions to the quadratic equations are:

x=\sqrt{13}+3,\:x=-\sqrt{13}+3

4 0
3 years ago
Line p passes through points (6, 8) and (2, 11). Line q is perpendicular to p. What is the slope of line q?
KonstantinChe [14]

Answer:

Step-by-step explanation:

Slope of p=\frac{11-8}{2-6}

                 = -\frac{3}{4}

∵line q is perpendicular to p

∴Slope of q x slop of p=-1

Slope of line q=\frac{4}{3}

6 0
3 years ago
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