All categories

3 years ago

Multiple choice A B C or D?

Mathematics

2 answers:

Free_Kalibri [48]3 years ago

6 0

Not sure but prob d. because the rest r short or don’t correlate

d1i1m1o1n [39]3 years ago

6 0

I am thinking maybe c

You might be interested in

Can someone help please?

Mariulka [41]

Answer:

Part 1) The area of the structure is $2,453.25\ ft^{2}$

Part 2) The slab will contain $1,226.625\ ft^{3}$ of cement

Step-by-step explanation:

Part 1) Find the area of the structure

we know that

The area of the structure is equal to the area of rectangle plus the area of semicircle

Find the area of rectangle

The area of rectangle is equal to

$A=LW$

we have

$L=70\ ft$

$W=30\ ft$

substitute

$A=(70)(30)$

$A=2,100\ ft^{2}$

Find the area of semicircle

The area of semicircle is

$A=\frac{1}{2}\pi r^{2}$

we have

$\pi =3.14$

$r=15\ ft$

substitute

$A=\frac{1}{2}(3.14)(15)^{2}$

$A=353.25\ ft^{2}$

Find the area of the structure

Adds the areas

$A=2,100+353.25=2,453.25\ ft^{2}$

Part 2) If the structure is 6 in thick, how many cubic feet of cement will the slab contain?

Remember that

$1\ foot=12\ inches$

Convert inches to feet

$6\ in=6/12=0.5\ ft$

Find the volume of the structure

To obtain the volume , multiply the area by 0.5 ft (thick)

$V=2,453.25*0.5=1,226.625\ ft^{3}$

7 0

3 years ago

10(c–1)=80 i need help

Pachacha [2.7K]

Answer:

C =9

Step-by-step explanation:

10(c−1)=80

Step 1: Simplify both sides of the equation.

10(c−1)=80

(10)(c)+(10)(−1)=80(Distribute)

10c+−10=80

10c−10=80

Step 2: Add 10 to both sides.

10c−10+10=80+10

10c=90

Step 3: Divide both sides by 10.

10c

c=9

8 0

3 years ago

Rachel works at a bookstore. On Tuesday, she sold twice as many books as she did on Monday. On Wednesday, she sold 6 fewer books

Marrrta [24]

Answer:

the answer is 19 = 5m - 6

Step-by-step explanation:

6 0

3 years ago

14 POINTS PLEASE HELP !!

Sonja [21]

Answer: C

Step-by-step explanation:

i just know

4 0

3 years ago

Which set of integers is listed from least to greatest.

prohojiy [21]

Answer:

Step-by-step explanation:

7 0

3 years ago