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Gekata [30.6K]
3 years ago
8

What are the solutions to x2 + 8x + 7 =0?

Mathematics
1 answer:
Nata [24]3 years ago
7 0

The chosen topic is not meant for use with this type of problem. Try the examples below.

y = x+4

y = 2x-5

y = x-1

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Abigail is using blocks to build a tower. The blocks are 3 inches, 4 inches, and 8 inches tall. She has stack 3 blocks. How many
ohaa [14]

9514 1404 393

Answer:

  10

Step-by-step explanation:

Possible tower heights using 3 blocks are ...

  {9, 10, 11, 12, 14, 15, 16, 19, 20, 24}

There are 10 different heights possible.

_____

Each block can be used 1, 2, or 3 times.

Using a 3 in block as the smallest, we have ...

  3+3+3 = 9

  3+3+4 = 10

  3+3+8 = 14

  3+4+4 = 11

  3+4+8 = 15

  3+8+8 = 19

Using a 4-in block as the smallest, we have ...

  4+4+4 =12

  4+4+8 = 16

  4+8+8 = 20

And ...

  8+8+8 = 24

5 0
3 years ago
This recipe makes five portions of soup.
antiseptic1488 [7]

Answer:

20g onions at 50 carrotsat 2tablespoon oil at 30 tomatos 1l vegtable stock

4 0
3 years ago
Read 2 more answers
Winnie is considering two plans for her piano lessons plan a $68.40 for 6 piano lessons plan b $41.80 for 4 piano lessons for wh
inna [77]

Answer:

Winnie will pay less for plan B

Step-by-step explanation:

If you divide $68.40 by 6 then you get $11.40 per lesson but if you divide $41.80 by 4 then you end up with $10.45 per lesson thus making it the lower price.

Hope I could help, have a wonderful day/night :)

5 0
3 years ago
In the diagram shown, FJ bisects AD BL~=LC. The length of CD is 2 more than the length of LC, and the length of AD is
LekaFEV [45]

Answer:

The Length of AC is  17 units.

Step-by-step explanation:

Given:

BL = LC

AD = 24

AL = LD

AL = LD = half of AD = half of 24 = 12.     { FJ bisect AD }

Also,

CD = 2 + LC

To Find:

AC = ?

Solution:

By Addition Property we have

LC + CD = LD  ............{ L - C - D }

LC + ( 2 + LC ) = 12 ..........{substituting the given values}

∴ 2(LC) = 12 -2

∴ 2 (LC) = 10

∴ LC =\frac{10}{2} \\\\LC = 5\ units\\

Again,  By Addition Property we have

AC = AL +  LC      ................{ A - L - C }

AC =12 + 5

∴ AC = 17 units

∴ The Length of AC is  17 units.

5 0
3 years ago
Simplify the following polynomial and write the answer in standard form. (9-2x^3+5^2-4x+5) - (-2x^3+2x-3)
pogonyaev
If I am reading the question correctly it would come out to -6x+42  First do all the addition and squaring, then factor in that negative.  You come out to -2x^3 +2x^3-4x-2x+25+5+9+3.  The x^3's cancel, the -x's add to -6x, then all that other adds to 42.
7 0
3 years ago
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