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Stella [2.4K]
4 years ago
9

4. How many real-number solutions does the equation have?

Mathematics
1 answer:
erma4kov [3.2K]4 years ago
5 0
2 solutions. This is because the parabola will cross the x axis twice. We know this because -5 means the vertex will be 5 units below the x axis. and the parabola opens upwards because the first coefficient is positive. Hope this helped :)
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Find angles 1, 2, and 3
dedylja [7]

Answer:

1 : 51  2 : 39  3 : 90

Step-by-step explanation:

1 : 180(internal angle of triangle) - 90 - 39 =51

2. alternate angles

3. internal angles of rectangle are always 90

6 0
2 years ago
A company charges $25 a day for a car rental along with a $60 one time fee. Complete the table to determine the cost to rest the
Sedbober [7]

Answer:

For 1 Day: $85

For 2 Days: $110

For 3 Days: $135

For 4 Days: $160

Step-by-step explanation:

For 1 Day: $25 + $60 = $85

For 2 Days: ($25 * 2) + $60 = $110

For 3 Days: ($25 * 3) + $60 = $135

For 4 Days: ($25 * 4) + $60 = $160

5 0
4 years ago
How do you substitute math 3x+y=-14 and 2x-y=-19 step by step
anastassius [24]

Answer:

x=-33/5 y=29/5

Step-by-step explanation:

Let's solve your system by substitution.

3x+y=−14;2x−y=−19

Solve

3x+y=−14 for y:

3x+y=−14

3x+y+−3x=−14+−3x(Add-3x to both sides)

y=−3x−14

Next is to substitute −3x−14 in for y 2x−y=−19:

2x−y=−19

2x−(−3x−14)=−19

5x+14=−19(Simplify both sides of the equation)

5x+14+−14=−19+−14(Add -14 to both sides)

5x=−33 Dived both sides by 5

5x/5=-33/3

x=−33/5 since you can't dived and a fraction is another form of division you keep it this way.

Step: Substitute -33/5 for x in y=−3x−14:

y=−3x−14

y=−3(-33/5)-14

y=29/5

(Simplify both sides of the equation)(since you can't dived and a fraction is another form of division you keep it this way.)

So

x=-33/5 and y=29/5

Pls mark brailest this took me a long time to write out lol. Hope this truly helps! Send a heart if so, so I can keep spreading the help!

3 0
4 years ago
Need the missing length
Gala2k [10]

Answer:

10

Step-by-step explanation:

The side to the right is 15. The side to the left is 5. You can subtract these two to find the length.

3 0
4 years ago
Read 2 more answers
A cyclist rides his bike at a rate of 15 miles per hour. what is this rate in miles per minute? how many miles will the cyclist
vladimir2022 [97]

Answer:

0.25 miles per minute, travels 5 miles in 20 minutes

Step-by-step explanation:

First, we have to find out how many miles he can travel in a minute.

We know that he travels 15 miles every hour, and we know that one hour is 60 minutes.

  • 15 mi./ 1 hr = 15 mi. / 60 minutes

So, we can divide 15 miles by 60 minutes in order to get his pace for miles per minute

  • 15 ÷ 60 = 0.25 miles per minute

Then we can just multiply 0.25 miles by 20 minutes

  • 0.25 × 20 = 5

which gives us 5 miles in 20 minutes

6 0
3 years ago
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