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3 years ago

Factor the quadratic expression x2-19x+88 (x+)(x+) ^ Where the answer would go

Mathematics

1 answer:

ipn [44]3 years ago

7 0

Answer:

(x+8)(x+11)

Step-by-step explanation:

When you factor a quadratic by the form:

$x^{2} + bx + c$

you are looking for two numbers, 'q' and 'r', which ADD to 'b' and MULTIPLY to 'c'.

In this case, some example numbers that multiply to 88 are:

±1, ±2, ±4, ±8, ±11, ±44, ±88.

Since they must add to 19, then you can figure out through some trial and error that the numbers are 8 and 11.

8*11 = 88

8+11 = 19

So, the answer is (x+8)(x+11)

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an isosceles triangle has angle measures of 55, 55, and 70. the side across the 70 degree angle is 10 inches long. how long are

Shtirlitz [24]

Answer:

The other sides of triangles are 8.72 in and 8.72 in

Step-by-step explanation:

In a triangle ABC. Please find the attachment for figure.

$\angle A=70^{\circ}$

$\angle B=\angle C=55^{\circ}$

Side BC=a = 10 in

Using sine law of trigonometry,

$\dfrac{a}{\sin A}=\dfrac{b}{\sin B}=\dfrac{c}{\sin C}$

Substitute the given value into formula.

$\dfrac{10}{\sin 70}=\dfrac{b}{\sin 55}=\dfrac{c}{\sin 55}$

$\dfrac{10}{\sin 70}=\dfrac{b}{\sin 55}$

Cross multiply and we get

$b=\sin 55\times \dfrac{10}{\sin 70}$

$b=8.72$ in

It is a isosceles triangle. Therefore, b=c=8.72 in

Hence, The other sides of triangles are 8.72 in and 8.72 in

7 0

3 years ago

Calculeaza,grupand convenabil factori

elixir [45]

Step-by-step explanation:

1. 0

2. 42

3. 80

4. 48

5. 250

6.64

7. 90

8. 180

9. 42

3 0

3 years ago

8x11=(8x10)+(1x10) how can I make it true?

icang [17]

You could make it true by making it (8x10) plus (8x1)

Explanation: 8x11=88 and 8x10=80 and 8x1=8 and 80+8=88

6 0

4 years ago

Read 2 more answers

When 27 times x squared times z all over negative 3 times x squared times z to the fourth power is completely simplified, the ex

snow_lady [41]

Isolate z by itself:

$\frac{z}{z^4}$

To simplify variables with powers, subtract the smaller power from the bigger power:

$4 - 1 = 3$
$\frac{z}{z^4} = \frac{1}{z^3} = z^{-3}$

The exponent will be -3.

4 0

3 years ago

Read 2 more answers

A B and C are collinear, and B is between A and C. The ratio of AB to AC is 2:7. If A is at (0,-8) and B is (2,-4), what are the

labwork [276]

Answer:

C = (7, 6)

Step-by-step explanation:

The problem statement tells us the relation between the points is ...

(B-A)/(C-A) = 2/7

7(B -A) = 2(C -A) . . . . . . multiply by 7(C-A)

7B -7A +2A = 2C . . . . . add 2A

C = (7B -5A)/2 . . . . . . . divide by 2

C = (7(2, -4) -5(0, -8))/2 = (14, 12)/2 . . . . . fill in the values of A and B

C = (7, 6)

5 0

4 years ago

Factor the quadratic expression x2-19x+88 (x+__)(x+__) ^ Where the answer would go​

Factor the quadratic expression x2-19x+88 (x+)(x+) ^ Where the answer would go