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3 years ago

What is the solution to the system of equations?

Mathematics

1 answer:

sesenic [268]3 years ago

5 0

Answer:

D) (-5, 0)

Step-by-step explanation:

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Solve by quadratic formula: 3x^2 - 10x - 20= 0

Arlecino [84]

this is your answer, i hope this helps you

5 0

3 years ago

What is the area of the figure? 40 ft2 84 ft2 96 ft2 can't be determined

mina [271]

Answer:

$A=80\ ft^2$

Step-by-step explanation:

we know that

The area of the figure is equal to the area of an isosceles triangle (has two equal sides) plus the area of a rectangle

step 1

Find the area of the triangle

The area of the triangle is equal to

$A=\frac{1}{2}bh$

we have

$b=16\ ft$

To find out the height of the triangle Apply the Pythagorean Theorem

$10^2=(16/2)^2+h^2$

solve for h

$100=64+h^2$

$h^2=100-64$

$h^2=36$

$h=6\ ft$

Find the area of triangle

$A=\frac{1}{2}(16)(6)$

$A=48\ ft^2$

step 2

Find the area of rectangle

The area of rectangle is equal to

$A=LW$

we have

$L=16\ ft\\W=2\ ft$

substitute

$A=(16)(2)=32\ ft^2$

step 3

Find the area of the figure

Adds the areas

$A=48+32=80\ ft^2$

5 0

3 years ago

Jeff brought a bottle of water for $2.He also brought some hot dogs for $3 each.Jeff did not spend more than $14 on the hot dog

Gala2k [10]

The answer would be D because 3h + 2 (water) has to be less than or equal to > 14

8 0

3 years ago

Read 2 more answers

Divide: 6 ÷ 1/2=12

schepotkina [342]

I believe the answers are:
1. Twelve circles
2. Two equal parts
3. 6 parts would be shaded

6 0

2 years ago

Read 2 more answers

The student council orders 12 sandwhiches for the school dance. each sandwich is 6 feet long cut into sections that are 4 inches

Setler [38]

The school council will have 216 small sandwiches.

Step-by-step explanation:

Sandwiches ordered = 12

Length of one sandwich = 6 feet

1 foot = 12 inch

6 feet = 12*6 = 72 inches

Length of one sandwich in inches = 72 inches

As one small sandwich is 4 inches,

Number of small sandwiches in one sandwich = $\frac{72}{4}=18$

One sandwich = 18 small sandwiches

12 sandwiches = 18*12 = 216 small sandwiches

The school council will have 216 small sandwiches.

Keywords: multiplication, division

Learn more about multiplication at:

#LearnwithBrainly

3 0

3 years ago