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2 years ago

What is -5(-10z + -4) +-3

Mathematics

2 answers:

konstantin123 [22]2 years ago

7 0

Answer:

50z + 17

I hope this helps!

pantera1 [17]2 years ago

3 0

Answer:

50z + 17

Step-by-step explanation:

-5(-10z + -4) +-3

distribute

= 50z +20 -3

=50z + 17

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there were 632 animals gathered at the river. a herd of 187 elephants and 266 zebras left the river area. how many animals were

Simora [160]

Answer: There was a total of 173 animals left by the river

Step-by-step explanation:187+266 = 453

You subtract 453 from the total number of animals which is 632

632-453 = 179

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2 years ago

How mamy ways can you add three differemt numbers to get a sum of 20

LenaWriter [7]

You can do 5+5+10, 6+6+8, 9+9+2, 4+4+12, 3+3+14, 2+2+16, 1+1+18. I believe these are all of them, so there are 7 ways.

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3 years ago

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Combine the like terms to make a simpler expression: 5n+6+(-7n)<br> plz hurry

azamat

-2n + 6 is the answer to this question

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2 years ago

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For any perfect square trinomial (quadratic), the constant term (last term) must be positive.

Ronch [10]

Answer:

For the perfect square trinomial (quadratic) i.e. $\left(x\:+\:3\right)^2$ , the constant term (last term) is positive.

Step-by-step explanation:

"Perfect square trinomials" are termed as the quadratics that are the outcomes of squaring binomials.

For example:

$\left(x\:+\:3\right)^2$

$\mathrm{Apply\:Perfect\:Square\:Formula}:\quad \left(a+b\right)^2=a^2+2ab+b^2$

$a=x,\:\:b=3$

$=x^2+2x\cdot \:3+3^2$

$=x^2+6x+9$

Therefore, for the perfect square trinomial (quadratic) i.e. $\left(x\:+\:3\right)^2$ , the constant term (last term) is positive.

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3 years ago

Find the dimensions of an American football field. The length is 200 ft more than the width, and the perimeter is 1,040 ft. Find

natka813 [3]

Answer:

The width of the football field is 160 feet.

The length of the football field is 360 feet.

Step-by-step explanation:

Let w represent width of the football field.

We have been given that the length is 200 ft more than the width, so the length of the field would be $w+200$ .

We are also told that the perimeter is 1,040 ft. We know that football field is in form of rectangle, so perimeter of field would be 1 times the sum of length and width. We can represent this information in an equation as:

$2(w+w+200)=1040$

Let us solve for w.

$2(2w+200)=1040$

$4w+400=1040$

$4w+400-400=1040-400$

$4w=640$

$\frac{4w}{4}=\frac{640}{4}$

$w=160$

Therefore, the width of the football field is 160 feet.

Upon substituting $w=160$ in expression $w+200$ , we will get length of field as:

$w+200\Rightarrow 160+200=360$

Therefore, the length of the football field is 360 feet.

7 0

3 years ago