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3 years ago

Helpppppp please!!!!!

Mathematics

1 answer:

ioda3 years ago

8 0

1. Prop. of addition

2. Identity of Addition

3. inverse prop of x

4. identity prop of +

5. Commutative prop

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Someone help pls. hurry

zhenek [66]

Answer:

slope = -1/4 intercept = 50

Step-by-step explanation:

7 0

2 years ago

What does 9(3j-6) equal?

Bezzdna [24]

9(3j-6) = 27j - 54

Note: a(b-c) = ab - ac

8 0

2 years ago

a customer buys a diiferent book that has an original selling price of $38 the books is discounted 25% the customer must pay a 6

Nimfa-mama [501]

Answer: 30.21$
Explanation:
1. 38• 0.25(25%)=28.50
2. 28.50•0.06(6)=1.71 ( the sales taxes)
3. 28.50+1.71=30.21$
Hope this helps. If it’s correct please tell me.

7 0

2 years ago

Best Buy is having a sale. iPads are marked down 20%. Of the original cost is $399, how much will you pay?

iren [92.7K]

It is

$79.80 I believe
According to me?

5 0

2 years ago

Read 2 more answers

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