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4 years ago

Please help me solve this.

Mathematics

1 answer:

erastovalidia [21]4 years ago

8 0

Answer:

B. Subtract 7

Step-by-step explanation:

You always want to isolate the x term to solve for x in any equation. Therefore, we need to move the 7 to the other side. Only way to do that is to subtract 7 on both sides.

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Factor this expression plz ... 14r - 8

grandymaker [24]

Answer:

2 ( 7r - 4 )

Step-by-step explanation:

14r - 8

To factor this expression, you must pull the factor 2 outside the expression by basically reversing the distributive property:

14r - 8 = 2 ( 7r - 4 )

7 0

3 years ago

if the jumping price is 18.50 per hour and the fee for socks is 3.25 what is the total cost in dollars for the 5 friends to jump

babunello [35]

Answer: $108.75

Step-by-step explanation: 18.50+3.25=21.75 Per Person 21.75x5=108.75

8 0

3 years ago

Assume that 22 kids have their names (all different) put into a hat. The teacher is drawing 5 names to see who will speak first,

Vinil7 [7]

Answer:

22 to the 5th power

Step-by-step explanation:

Oh and also these are some of the kid's names:

ur mom

broke

7 0

2 years ago

Please help me please please please please please please please

Schach [20]

Answer:

The leg measures 14.14 cm

Step-by-step explanation:

The "40 - 40 - 90" special right triangle is an isosceles right triangle because two angles measures the same. (Check the picture)

The legs are the same.

The hypotenuse is:

a × √2

From the question, the length of the hypotenuse is 20 cm.

20 = a × √2

20 ÷ √2 = a

a = 10√2 ≈ 14.14 cm

7 0

4 years ago

Multiply. (2x2 – 3x)(3x2 + 2x - 1)

exis [7]

Answer:

$-6x^{2}$ –7x + 20

Step-by-step explanation:

(2x2 – 3x)(3x2 + 2x – 1)

(4 – 3x)(2x + 5)

(4*2x) + (4*5) + (–3x*2x) + (–3x*5)

8x + 20 $-6x^{2}$ –15x

$-6x^{2}$ –7x + 20

8 0

3 years ago

Please help me solve this.​

Please help me solve this.