4 years ago

What is 5-3(7x+8) simplified?

Mathematics

1 answer:

Blizzard [7]4 years ago

8 0

-21x-19
hope it helps

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The sum of a number and -15 is equal to the product of that number and 1/4.what is the number

Zolol [24]

Answer:

Step-by-step explanation:

(x−a)(x−b)=x2−(a+b)x+ab

Hope this was helpful----

3 0

3 years ago

do -3+2 and 2+(3) have the same sum? does it matter if the negative number is the first addend or the second addend

ryzh [129]

Answer:

They don't have the same sum.

Step-by-step explanation:

3 0

3 years ago

please answer will give brainliest

SpyIntel [72]

Answer:

2 Gallons

Step-by-step explanation:

20.5ft x 16.4ft = 336.2

336.2 divided by 200= 168 gallons

Since you can not buy 1.68 gallons you will have to buy 2 galllons instead.

4 0

3 years ago

suppose a triangle has two sides of length 42 and 35 and that the angle.between these two sides is 120° what is the length of th

pickupchik [31]

Answer:

The length of the third side of the triangle is $7\sqrt{91}\ units$

Step-by-step explanation:

Let

c ----> the length of the third side of the triangle

we know that

Applying the law of cosines

$c^2=a^2+b^2-2(a)(b)cos(C)$

we have

$a=42\ units\\b=35\ units\\C=120^o$

substitute the given values

$c^2=42^2+35^2-2(42)(35)cos(120^o)$

$c^2=2,989-2,940cos(120^o)$

$c^2=4,459\\c=\sqrt{4,459}\ units\\c=7\sqrt{91}\ units$

6 0

3 years ago

Courtney is ordering nachos at a restaurant, and the server tells her that she can have up to three toppings: pico de gallo, oni

aalyn [17]

Answer:

$Probability = \frac{1}{9}$

Step-by-step explanation:

Given

Toppings: Pico de gallo, Onions and Steak

Required

The probability of getting Onions and Steak

The probability is calculated using:

$Probability = P(Onion)\ and\ P(Steak)$ --- because the events are independent

$P(Onion) = \frac{n(Onion)}{Total}$

$P(Onion) = \frac{1}{3}$

$P(Steak) = \frac{n(Steak)}{Total}$

$P(Steak) = \frac{1}{3}$

So, we have:

$Probability = P(Onion)\ and\ P(Steak)$

$Probability = P(Onion)\ *\ P(Steak)$

$Probability = \frac{1}{3} * \frac{1}{3}$

$Probability = \frac{1}{9}$

3 0

3 years ago