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masya89 [10]
3 years ago
14

Solve x2 + 4x + 8 = 0.

Mathematics
2 answers:
Tanzania [10]3 years ago
6 0

Answer:

x= -2 + or - 2i

Step-by-step explanation:

olga_2 [115]3 years ago
4 0

x equals negative 2 plus or minus 2i

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Miki has 104 nickels and 88 dimes. She wants to divide her coins into groups where each group has the same number of nickels and
Helga [31]

Answer:

8

Step-by-step explanation:

8 can go into 88 and it can also go into 104 too and 8 is the largest number so the answer is C

8 0
3 years ago
Read 2 more answers
7/10+6/100= how do solve this problem
kondor19780726 [428]
We need to find the Lowest Common Denominator = LCD lowest is 100
10 x 10, 20, 30, 40, 50, 60, 70, 80, 90, 100
100 x 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000. which is the lowest and common? 100
7/10  /100 how many times can 10 go into 100? 10 times. so we will multiply 10 time the numerator which is 7, and now will be 70/100
6/100 /100 how many times can 100 go into 100? 1 time. so we will multiply 1 time the numerator 6 which equals 6. 6/100
now add the new fractions. 70/100 + 6/100 = 76/100
6 0
3 years ago
Read 2 more answers
F(x) = 4x - 4, g(x) = - 3x² + 2x - 3, and h(x) = - 2x^2- 5, find f(-4)
tia_tia [17]

Answer:

-20

Step-by-step explanation:

f(x) = 4x - 4

f(-4) = 4*-4 - 4

f(-4) = -16 - 4

f(-4) = - 20

  • f(x) shares many of the properties of y so you could think of this question as y = 4x - 4
  • The difference is as in this question that f(-4) conveys the message that wherever you see an x on the right side of the equation, you put -4 in it's place.
  • That's what was done on the second step.
4 0
2 years ago
Please help me with this
Roman55 [17]

Answer:

Option 1: triangle HFG is congruent to triangle KIJ

Step-by-step explanation:

F and I are same as they are on 90 degrees.

In figure 1, from I to K is the height of the triangle.

In figure 2, from F to H is the height of the triangle.

Therefore, IK is congruent to FH

In figure 1, I to J is the base of the triangle from 90 degrees.

In figure 2, F to G is the base of the triangle from 90 degrees.

Therefore, IJ is congruent to FG

Therefore, triangle HFG is congruent to triangle KIJ.

The first option is correct.

!!

5 0
3 years ago
How to solve 7^3x+4=49^2x+1
stiks02 [169]
Raise 49<span> to the </span>power<span> of </span>2<span> to get </span><span>2401.
</span><span><span>7^3</span>x+4=2401x+1

</span>Raise 7<span> to the </span>power<span> of </span>3<span> to get </span><span>343.
</span><span>343x+4=2401x+1

</span>Since <span>2401x</span><span> contains the </span>variable<span> to solve for, move it to the left-hand side of the </span>equation<span> by subtracting </span><span>2401x</span><span> from both sides.
</span><span>343x+4−2401x=1

</span>Add <span>343x</span><span> and </span><span>−2401x</span><span> to get </span><span><span>−2058x</span>.
</span><span>−2058x+4=1

</span>Since 4<span> does not contain the </span>variable<span> to solve for, move it to the right-hand side of the </span>equation<span> by subtracting </span>4<span> from both sides.
</span><span>−2058x=−4+1

</span>Add <span>−4</span><span> and </span>1<span> to get </span><span><span>−3</span>.
</span><span>−2058x=−3

</span>Divide<span> each </span>term<span> in the </span>equation<span> by </span><span><span>−2058</span>.


</span><span>x=<span>1/686</span></span>
7 0
3 years ago
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