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4 years ago

HELP PLEASE!

Mathematics

2 answers:

sergeinik [125]4 years ago

8 0

Answer:

x = 79°

Step-by-step explanation:

→ Remember that vertically opposite angles are equal so 22° is opposite to CAB so angle CAB is 22°

CAB = 22°

→ Remember the fact that

Angles in a triangle add up to 180°
Base angles in an isosceles triangle are equal

Using the information we form an equation,

2x + 22 = 180

→ Minus 22 from both sides to isolate 2x

2x = 158

→ Divide both sides by 2 to isolate x

x = 79°

melomori [17]4 years ago

7 0

Answer:

Isosceles add upto 180°

To find x =180°-22°=158°

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HELP PLEASE !!!!!!!!!!!!!!!

nadya68 [22]

Answer:

x=30

Step-by-step explanation:

if 30 x 4 = 120 amd 2 = 30 = 60 then 60+120=180

6 0

3 years ago

Can somebody help me find the surface area of this

-Dominant- [34]

Answer:

G. 7600 $cm^{2}$

Step-by-step explanation:

Step 1: Deconstruct the shape

2 rectangles with dimension of 50 cm x 20 cm

2 rectangles with dimension of 40 cm x 20 cm

2 rectangles with dimension of 40 cm x 50 cm

Step 2: Find surface area of the shapes

2(50 x 20) = 2000 $cm^{2}$

2(40 x 20) = 1600 $cm^{2}$

2(40 x 50) = 4000 $cm^{2}$

Step 3: Add the surface areas together

2000 + 1600 + 4000 = 7600 $cm^{2}$

Therefore the surface area is 7600 $cm^{2}$ and the answer is G.

4 0

3 years ago

Need help with factoring, x squared minus 8x +15

wariber [46]

Answer:

(x-3)(x-5)

Step-by-step explanation:

X^2-8x+15

Break the expression into groups

(x^2-3x)+(-5x+15)

Factor out x from x^2-3x

Factor out -5 from -5x+15: -5(x-3)

=x(x-3)-5(x-3)

Factor out common term x-3

=(x-3)(x-5)

Thanks for letting me help!!

7 0

3 years ago

SOMEONE PLEASE HELP!!!Which of the following represents the synthetic division form of the long

UkoKoshka [18]

Answer:

Choice C

Step-by-step explanation:

When setting up synthetic division you do:

x-5=0

x=5

and get the numerator's coefficients:

1, -3, 4

so that's 5 | 1 -3 4

7 0

3 years ago

Read 2 more answers

Help me please i’ll rate brainliest

Cloud [144]

Answer:

Step-by-step explanation:

Let's assume that the base of the given logarithm is 10.

log m = 0.345 ⇒ $10^{0.345}$ = m

log n = 1.223 ⇒ $10^{1.223}$ = n

mn = $10^{0.345}$ × $10^{1.223}$ = $10^{1.568}$

$\frac{1}{mn}$ = $10^{-1.568}$

log $10^{-1.568}$ = - 1.568 × log 10 = <em>- 1.568</em>

5 0

3 years ago