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3 years ago

Factor x2 + 29x - 30.

Mathematics

2 answers:

marysya [2.9K]3 years ago

8 0

Ok the w to your question is to cross multiply 216=9m m=24

Hatshy [7]3 years ago

3 0

When you factor you have to break it into 2 pieces that look like (x+something)(x+something). (The + could also be -).

Find 2 numbers that multiply together to get the last number that can also add or subtract to get the second number. In this case, 1 and 30 work because you can multiply 1 and 30 to get 30, and 30-1 is 29.

The final product is:
(x+29)(x-1) because the last number has to be negative and the middle number has to be positive.

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Match the vocabulary word to its correct definition.

Trava [24]

Answer:

1. Complex number.

2. Imaginary part of a complex number.

3. Real part of a complex number.

4. i

5. Multiplicative inverse.

6. Imaginary number.

7. Complex conjugate.

Step-by-step explanation:

1. Complex number: is the sum of a real number and an imaginary number: a + bi, where a is a real number and b is the imaginary part.

2. Imaginary part of a complex number: the part of a complex that is multiplied by i; so, the imaginary part of the complex number a + bi is b; the imaginary part of a complex number is a real number.

3. Real part of a complex number: the part of a complex that is not multiplied by i. So, the real part of the complex number a + bi is a; the real part of a complex number is a real number.

4. i: a number defined with the property that 12 = -1.

5. Multiplicative inverse: the inverse of a complex number a + bi is a complex number c + di such that the product of these two numbers equals 1.

6. Imaginary number: any nonzero multiple of i; this is the same as the square root of any negative real number.

7. Complex conjugate: the conjugate of a complex number has the opposite imaginary part. So, the conjugate of a + bi is a - bi. Likewise, the conjugate of a - bi is a + bi. So, complex conjugates always occur in pairs.

4 0

4 years ago

The type of flower shown in the table make up an arrangement what percent of the flowers in the range that are roses

sdas [7]

Can you show the table please?

4 0

4 years ago

Dont understand it, so yeah need some help

Sonja [21]

Answer:

-4

Step-by-step explanation:

We have the coordinates (6, 3) and (8, 4), allowing us to calculate the slope (or gradient). To do this, you divide the change in y by the change in x, which is 1/2 which is a half.

The form of a linear equation is y = mx + c, where m is the gradient and c is the y-intercept.

We have the gradient, so we can put it in the equation:

y = x/2 + c

We can now substitute in a pair of our coordinates and rearrange to find the y-intercept.

3 = 6/2 + c

3 = 3 + c

c = 0

Therefore the equation for our line is y = x/2.

We can now put in the y coordinate we were given to work out the corresponding x coordinate:

-2 = x/2

x = -4

Therefore n is -4.

7 0

3 years ago

There were 1100 apples at a fruit stall there were 220 more apples than mangoes. How many apples and mangoes were there althoget

Lelu [443]

1100-220=880
880+1100=1980

8 0

3 years ago

Read 2 more answers

Evaluate the expression 3^4 divide (14 — 5) x 2.

Licemer1 [7]

Answer: 18

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers