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Xelga [282]
3 years ago
14

A football team gained 6 yards on a first down, lost 15 yards on the second down

Mathematics
1 answer:
liubo4ka [24]3 years ago
8 0

Answer:

7 yards

Step-by-step explanation:

gained 6 yards on a first down   +6

lost 15 yards on the second down   - 15

gained 12 yards on the third down   +12

At the end of the third down

+6 -15+12 = +3

They want to have a 10 yard gain at the end of the 4th down

+3 + x = +10

Subtract 3 from each side

+3-3 +x = +10-3

x = 7

They need to gain 7 yards

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What is the value of the 1 in the number 7,491,285 ill??? please help asap rocky
Yuliya22 [10]

Answer:

the thousands

Step-by-step explanation:

7 is millions

4 is hundred thousands

9 is ten thousands

1 is thousands

2 is hundreds

8 is tens

5 is ones

7 0
3 years ago
X^2+4x+20=12x-5<br><br> Solve this equation
Scrat [10]

Answer:

4 + (or -) 3i

Step-by-step explanation:

Hi!

Alright, so we're going to move all of the variables and constants to one side. Then, using the quadratic formula, we'll find the answer.

1. Move 12x-5 to the left side of the equation by

  a. Subtracting 12x from both sides

  b. adding 5 to both sides.

1: x^2+4x+20-12x+5

2. Group the common terms

  x^2+4x-12x+20+5 --> x^2-8x+25

3. Look at the problem. We can't factor this.

Explanation for why this isn't factorable (you can skip this)

(1) 25 is positive, so its two factors will both be either positive or negative. We're looking for a negative 8, so let's go with negative.

(2) Factors of 25: 1 & 25, 5 &5

Seeing the problem? Ya, none of the factors of 25 sum to eight. So, instead, we're going to use the quadratic formula.

4.  So, the quadratic formula: \frac{-b+-\sqrt{b^2-4ac} }{2a}

Our equation is x^2-8x+25=0

a is the constant in front of the x^2

b is the constant in front of the x

c is the term without any x values

so, a=1, b=-8, and c= 25

Into equation:

\frac{8+-\sqrt{64-4(1)(25)} }{2a}=\frac{8+-\sqrt{64-100} }{2}=\frac{8+-\sqrt{-36} }{2}

8/2 = 4

sqrt(-36) = 6i

6i/2 = 3i (remember, we still have the two in the denominator)

4 + (or -) 3i

8 0
2 years ago
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iren [92.7K]
Y=-7/2x+1/2
1. find slope
2. plug in slope to y=mx+b
3. take point and plug it in (find a b)
4. plug in slope and b to get equation
8 0
3 years ago
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Which of the ratio equivalent to 1:3 select all that apply
nekit [7.7K]

Answer:

4:12

6:18

8:24

Two ratios that have the same value are called equivalent ratios. To find an equivalent ratio, multiply or divide both quantities by the same number.

3 0
2 years ago
I need help finding the answer!!
Whitepunk [10]

Answer:

The second option

Step-by-step explanation:

Here, we need to multiply each part of the matrix by -10.

This will give us: [ -230 380 ]

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So, the answer is the second option.

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