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andreev551 [17]

3 years ago

6

Find the values of a and b

1 answer:

never [62]3 years ago

5 0

Step-by-step explanation:

b=

180-40=2b

b=70°

a= 180-90-70

a=20°

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Simplify the expression given below x^2 + x-2

tamaranim1 [39]

X^2+x-2
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2 years ago

Y=−(x−1)(x+3) has how many real roots?<br> A. 0<br> B. cannot be determined<br> C. 2<br> D. 1

S_A_V [24]

Step-by-step explanation:

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3 years ago

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skad [1K]

-3d=-27
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3 years ago

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Simplify 10(N + 3).<br><br> 10N + 30<br> 10N + 13<br> 10N + 3

Alika [10]

N+3 evaluates to N+3
Multiply 10 by N+3

Multiply 10 by each term in N+3 term by term.

This is the distributive property of multiplication.

Multiply 10 and N
Multiply 1 and N

The N just gets copied along.
10 × N = 10N

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3 years ago

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Find the gradient of line segment AB A is point (-3,3) B is point(-1,-1)

Fynjy0 [20]

Answer:

$m=-2$

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Algebra I</u>

Slope (Gradient) Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

<u>Step 1: Define</u>

A (-3, 3)

B (-1, -1)

<u>Step 2: Find slope </u><em><u>m</u></em>

Substitute: $m=\frac{-1-3}{-1+3}$
Subtract/Add: $m=\frac{-4}{2}$
Divide: $m=-2$

7 0

2 years ago