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2 years ago

15

Help ASAP on #2 please

1 answer:

NikAS [45]2 years ago

5 0

Where is the picture

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Expanding brackets (x + 3)(x + 10)

Katarina [22]

Answer:

x² + 13x + 30

Step-by-step explanation:

(x + 3) (x + 10)

Expand the brackets.

x(x + 10) + 3(x + 10)

x² + 10x + 3x + 30

Add like terms.

x² + 13x + 30

6 0

2 years ago

Read 2 more answers

The table below shows the relationship between the number of teaspoons of baking powder in a mix and the height of fudge brownie

rosijanka [135]

Answer:

Option A. $y=0.28x+0.75$

Step-by-step explanation:

Let

y -----> the height of fudge brownies in centimeters

x ----> teaspoons of baking powder

step 1

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

take the points

(5,2.15) and (6,2.43)

substitute the values

$m=\frac{2.43-2.15}{6-5}$

$m=\frac{0.28}{1}=0.28$

step 2

Find the equation of the line in point slope form

$y-y1=m(x-x1)$

we have

$m=0.28$

$(x1,y1)=(5,2.15)$

substitute

$y-2.15=0.28(x-5)$

Isolate the variable y

$y-2.15=0.28x-1.4$

$y=0.28x-1.4+2.15$

$y=0.28x+0.75$

6 0

2 years ago

Read 2 more answers

Solve the system of equations.

Sauron [17]

Answer: A. X= -5, Y= 3, Z= 4

Step-by-step explanation:

6 0

2 years ago

(a) Find the perimeter of the shape below. (Take π =<br>22/7)<br>3cm<br>3cm<br>12cm<br>20cm

MariettaO [177]

Try 20cm

it’s correct

3 0

2 years ago

I need the answer please

alina1380 [7]

Answer:

the answer is c

Step-by-step explanation:

its the only one that makes sense

3 0

2 years ago