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Lisa [10]
3 years ago
12

PLEASE HELP WITH THESE 2

Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
5 0

Answer:

1. ?=100 2.?=70

Step-by-step explanation:

1. for the inner arch, you just have to multiply by 2 so 50x2

2. to find the inner arch from the outer arch, you have to divide by two so 140/2

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If f(x) = x2, and<br> g(x) = x – 1, then<br> f(g(x)) = [? ]x2+[?]+ [?]
Basile [38]

Answer:

f(g(x)) = x² - 2x + 1

Step-by-step explanation:

To find f(g(x)), substitute x = g(x) into f(x) , that is

f(g(x))

= f(x - 1)

= (x - 1)² ← expand using FOIL

= x² - 2x + 1

5 0
3 years ago
a total of $21,000 is invested in two bonds that pay 4% and 7.5% simple interest. The bond with 7.5 % interest rate earned 6 tim
hjlf
21000=a+b
ax.075xt=6xbx.04xt
t cancels out
a=3.2b
21000= 3.2b+b
21000=4.2b
b=5000
a=16000

account with 7.5% had 16000 invested in it.
account with 4% had 5000 invested in it
4 0
3 years ago
IULIUCIIL
Sav [38]

Answer: No, because P(F T) = P(F) • P(T)

Step-by-step explanation:

6 0
3 years ago
397 students went on a field trip. Eight
lbvjy [14]

Answer:48

Step-by-step explanation:

Total number of students=397

Students that travelled in a car=29

Let the students that travelled in a bus be represented by y.

Since 8 buses were filled, it will be 8y for total students

8y + 29= 397

8y= 397-29

8y= 368

Divide both side by 8

8y/8=368/8

y = 46

Number of students in each bus is 46

8 0
4 years ago
A plane intersects a pentagonal pyramid horizontally as shown. Describe the cross-section.
Nady [450]
I believe the shape is a pentagon
4 0
3 years ago
Read 2 more answers
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