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3 years ago

PLEASE HELP ASAP!!!!! IM CONFUSED AND GOT IT WRONG

Mathematics

2 answers:

Alexus [3.1K]3 years ago

8 0

Answer:

18.9 square meters

Step-by-step explanation:

I think you mean that the area of the Rectangle A is 10.5 not 105.

10.5+ 8.4- 1.26= 18.9

Where I got the 1.26 from?

3/25 the area of Rectangle A is area of the overlap of the rectangles. Which means we have to divide 10.5 by 25 and multiply by 3. That gives us 1.26.

I hope this is helpful.

wariber [46]3 years ago

4 0

Answer:

Area of the gym floor = 100.8 square meters

Step-by-step explanation:

Area of the gym floor = Area of rectangle A + Area of rectangle B - Area of the overlap

Area of rectangle A = 105 square meters

Area of rectangle B = 8.4 square meters

Area of the overlap = $\frac{3}{25}\times (\text{Area of rectangle A})$

= $\frac{3}{25}\times 105$

= 12.6 square meters

Area of the gym floor = 105 + 8.4 - 12.6

= 100.8 square meters

Therefore, area of the gym floor is 100.8 square meters.

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P,W,R & S form the vertices of a quadrilateral. PQR = 74 degrees

Zielflug [23.3K]

Answer:

∠ SPQ = 75°

Step-by-step explanation:

The sum of the 4 angles in a quadrilateral = 360°

Subtract the sum of the 3 angles from 360 for ∠ SPQ

∠ SPQ = 360° - (90 + 74 + 121)° = 360° - 285° = 75°

6 0

3 years ago

Read 2 more answers

Im learning about Recursive and Explicit in Pre-Calc, and it says to use the rule to write the first three terms of each sequenc

Tems11 [23]

Hello,

4. you have sequences defined by the first term and a recursive relation.

$a_1=3\\\\a_n=2a_{n-1} \ \ \text{ for n}> 1$

Take n = 2, it gives

$a_2=2a_1$ , right?

But you know $a_1=3$

so $a_2=2a_1=2*3=6$

This is the second term. You are asked to find the first three terms.

Now, let's take n = 3

$a_3=2a_2=2*6=12$

So the first three terms are 3, 6, 12.

$a_1=12\\\\a_2=\dfrac{1}{2}a_1+1=\dfrac{12}{2}+1=6+1=7 \\ \\a_3=\dfrac{1}{2}a_2+1=\dfrac{7}{2}+1=\dfrac{9}{2}$

$a_1=10\\ \\a_2=-3a_1=-3*10=-30\\\\a_3=-3a_2=-3*(-30)=90$

10.

$a_1=2\\\\a_2=-1\\\\a_3=a_2+a_1=-1+2=1\\\\a_4=a_3+a_2=1-1=0$

Do not hesitate if you have any question.

Thank you

8 0

4 years ago

What is the equation of the line through 4.2 and 0, -2?

MissTica

Answer:

y = x-2

Step-by-step explanation:

y = mx + b as an equation

m = slope

slope = (change in y) / (change in x) = (y₂-y₁)/(x₂-x₁) = (y₁-y₂)/(x₁-x₂) = (2-(-2))/(4-0) = 4/4 = 1

y = 1*x + b

plug a value in, e.g. (0, -2)

-2 = 1 * 0 + b

-2 = b

our equation is thus

y = x - 2

7 0

3 years ago

A parallelogram-shaped sponge is 1 inch by 3 inches. The area of a design is 66 square inches. How many times do you use the spo

Kipish [7]

Answer:

You can use the sponge 22 times to create the design

Step-by-step explanation:

Area of the parallelogram-shaped sponge = base × height = 3 inches × 1 inch = 3 square inches

Area of design = 66 square inches

Number of times to use the sponge to create the design = Area of design ÷ Area of parallelogram-shaped sponge = 66 square inches ÷ 3 square inches = 22

The sponge can be used 22 times to create the design

3 0

3 years ago

Read 2 more answers

Help, with math! due soon!

inn [45]

Answer:

a) (4, 5)

b) (3, -1)

c) (4, 4)

d) (-3, 2)

e) (3, 1)

f) (7, 8)

Step-by-step explanation:

I hope this helped. If it did mark brainliest pls :)

3 0

2 years ago