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kondor19780726 [428]
3 years ago
10

Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4)

Mathematics
2 answers:
lions [1.4K]3 years ago
8 0
B: inverse property of addition
velikii [3]3 years ago
6 0
Inverse property of addition
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What is angle BCD<br> A. 80°<br> B. 90°<br> C. 100°<br> D. 110°
alexgriva [62]

Answer:

A

Step-by-step explanation:

it is like your hands hold your hand put to make a l shape that is 90⁰ and imaine that more opened out.

7 0
2 years ago
Find the missing side or angle.<br> Round to the nearest tenth.
BartSMP [9]

Answer:

b = 2.7

Step-by-step explanation:

Given:

< C = 53°

< B = 80°

a = 2

Required:

Find b

Solution:

The question given suggests we are given measures for a ∆.

To find side b, which corresponds to angle B, first, we'd find angle A, which corresponds to side a, then apply the Law of sines to find side b.

=> A = 180 - (53 + 80) = 47°

Law of Sines: \frac{a}{sin(A} = \frac{b}{sin(B}

Plug in the values into the formula

\frac{2}{sin(47} = \frac{b}{sin(80}

Cross multiply

2*sin(80) = b*sin(47)

Divide both sides by sin(47) to make b the subject of formula

\frac{2*sin(80)}{sin(47} = b

2.69 = b

b = 2.7 (nearest tenth)

8 0
2 years ago
Determine the domain and range for t (x) = -(x +10)2 - 64
kirza4 [7]
Your answer would be x= -42

3 0
3 years ago
Need help pls I'm having a very hard tim would appreciate for help
Zinaida [17]
Part A
blueberries
2/8 × 6/1(drinks) = 12/8cups
banana slice
5/8 × 6/1(drinks) = 30/8cups

30/8 + 12/8 = 42/8 cups<---- that's the answer

Part B
yogurt
4/8 × 6/1 (drinks) = 24/8 cups of yogurt <---
and 6 drinks × 1 cups of ice = 6 cups of ice <---
7 0
3 years ago
from the top of a building 10m high the angle of depression of a stone lying on the horizontal ground is 60° . calculate the dis
Alja [10]

​Answer:

14.29cm

Step-by-step explanation:

Height of the building=10cm

Angle of depression=60°

We are therefore asked to find the distance from the stone to the

the foot of the building;Therefore we use Tan ratio which is opp/adj;

Let the distance from the stone to the foot of the building be x;

10/x=Tan60°

10/x=1.7/1

We then cross multiply to get 1.7x=10

x=10/1.7

=10*10/1.7*10

=100/17

=14.29cm.

7 0
3 years ago
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