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2 years ago

Please help and work out both questions! ill give brainlest and 20 points

Mathematics

2 answers:

likoan [24]2 years ago

7 0

Answer:

6. -16

7. x = -7

Step-by-step explanation:

-3×(7+(-3)²)÷3

= -3×(7+9)÷3

= -3×16÷3

= -3 × (16/3)

= -16

9 × x = -63

=> 9x = -63

=> x = -63/9

=> x = -7

raketka [301]2 years ago

6 0

Answer:

Step-by-step explanation:

6. Use PEMDAS

-3 x (7 + (-3)*2) / 3

-3 x (7 + 9) / 3

-3 x 16 / 3

-48 / 3

-16

7. 9 (x) = -63

X = - 63 /9

X = -7

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1. Name the postulate or theorem you can use to prove the triangles congruent.

zzz [600]

Answer:

phthagoras

Step-by-step explanation:

7 0

3 years ago

2000 people are selected randomly from a certain population and it is found that 389 people in the sample are over 6 feet tall.

Airida [17]

Answer: 0.195

Step-by-step explanation:

given data:

population = 2000 people.

people Who are over 6 feet tall = 389.

Solution:

the point estimate of people over 6feet tall

= no of people over 6 feet tall / total population size

= 389/2000

= 0.195

the point estimate of people over 6 feet tall is 0.195

8 0

3 years ago

The bearing of Y from X is 63

zimovet [89]

Answer:

117°

Step-by-step explanation:

As per diagram:

∠NXY ≅ ∠XYZ as alternate interior angles since XN and YN are parallel and XY is transversal
m∠XYZ = m∠XZY = 63° since ΔXYZ is isosceles

Find the measure of ∠YXZ:

m∠YXZ = 180° - 2*63° = 54°

Find the bearing of Z from X:

m∠NXZ = m∠NXY + m∠YXZ = 63° + 54° = 117°

8 0

3 years ago

Does anyone know how to do this?

xeze [42]

Answer:

Step-by-step explanation:

6 0

3 years ago

Fiona divided 3x2+5x-3 by 3x+2. The expression represents the remainder over the divisor.

Lera25 [3.4K]

Answer:

-5

Step-by-step explanation:

Shown in the attachment.

The remainder when 3x^2 +5x -3 is divided by 3x+2 is -5

4 0

3 years ago