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likoan [24]
4 years ago
15

Factor 3x^2+5x-8 Use step by step explaining how you got that answer

Mathematics
1 answer:
8_murik_8 [283]4 years ago
8 0

Answer: (x-1)(3x+8)

Step-by-step explanation:

Slide and divide method

See what multiplies to get -24 (because of 3 and -8) and what adds to get 5

Put those into factoring form (x-3)(x+8) without a number in front of the x’s

Divide the numbers by what isn’t in front of the x’s (-3/3 and 8/3)

Simplify them and if it doesn’t divide perfectly, put the denominator in front of the x

Solution

**I can’t explain it well but watch a video on the method AND ONLY DO IT IF IT WORKS WELL FOR YOU**

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Ssignment
AnnZ [28]

Part a: The value of x is 33°

Part b: The measure of each base angle is 69°

Explanation:

It is given that the vertex angle of an isosceles triangle measures 42°.

The base angle in the triangle has a measure of (2x+3)^{\circ}

Part a: To determine the value of x

Since, in an isosceles triangle the base angles are always equal.

Thus, the three angles in an isosceles triangle add up to 180°

Hence, we have,

42+2x+3+2x+3=180

              42+4x+6=180

                     4x+48=180

                             4x=132

                               x=33^{\circ}

Thus, the value of x is 33°

Part b: To find the measure of each base angle.

Base angle = (2 x+3)^{\circ}

Substituting x=33^{\circ} , we get,

Base \ angle = (2(33)+3)^{\circ}

                  =(66+3)^{\circ}

                  =69^{\circ}

Thus, the measure of each base angle is 69°

6 0
4 years ago
One-fifth of the 45 nails in the toolbox are bent. How many bent nails are in the toolbox?
worty [1.4K]
There will be 9. Hope this helped! :)
4 0
3 years ago
Read 2 more answers
For the following pair of variables, state the units that might be used to measure each variable. Then state whether you believe
AfilCa [17]

Answer:

The correct answer is:

There is a positive correlation because women's weight tend to increase when height increases (D)

Step-by-step explanation:

The units that might be used to measure each variable are:

Height : meter (m) or foot (plural, feet) (Ft.)

weight : kilograms (kg) or Pounds (lb)

A positive correlation is said to occur between two variables when they both move in the same direction, that is, when they both increase or decrease, while a negative correlation occurs when the movement is not in tandem, i.e, as one increases, the other decreases. The relationship between height and weight is a positive correlation because, an increase in height, which is mainly as a result of elongation of bones, leads to an accumulated increase in total body mass, which in turn increases the body weight.

8 0
4 years ago
Given: 7x/2 < 5. Choose the solution set.
larisa [96]
7x/2 < 5
7x/2 * 2 < 5 * 2
7x < 10
7x71 < 10/7
x < 10/7
6 0
3 years ago
Read 2 more answers
A person has $10,100 to invest in two different stock. Stock ABC costs $32 per share and pays dividends of $1.20 per share. Stoc
marusya05 [52]

Answer:

$ 3199.0

Step-by-step explanation:

Let the number of shares of ABC = x

and XYZ = y

writing each as a linear equation

32 x + 23 y = 10100  equation 1

1.2 x + 1.4 y = 540

1.4 y = 540 - 1.2 x

y = (  540 - 1.2 x) / 1.4

substitute for y in equation 1

32 x + 23( 540 - 1.2 x) / 1.4 = 10100

32 x + 8871.43 - 19.71 x = 10100

collect the like terms

32 x -  19.71 x = 10100 - 8871.43

12.29 x = 1228.57

x = 1228.57 / 12.29 = 99.97

the amount of money to be invested in ABC shares = 99.97 × $ 32 = $ 3199.0

8 0
3 years ago
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