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wel
3 years ago
15

Bab need someone who can do quick mafs please!

Mathematics
2 answers:
yawa3891 [41]3 years ago
8 0

Answer:

A = 1/2 bh

1/2 x 7 x 5.4

= 18.9km2

jasenka [17]3 years ago
4 0

Answer:

18.9 km²

Step-by-step explanation:

Formula for area of a triangle: \frac{1}{2}bh

0.5(7 × 5.4) = 18.9 km²

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Find the value of x.
Sergio039 [100]

Answer:

can you please show attachments?

3 0
3 years ago
Read 2 more answers
Suppose two $20 bills, three $10 bills, one $5 bill, and seven $1 bills are placed in a bag. If you were to pull a bill at rando
Korolek [52]

Answer:

Assuming that the $1 bill was pulled at random, then the expected value of the amount chosen is \frac{7}{13}.

Step-by-step explanation:

From the given question, the bag contains;

$1 bill = 7

$5 bill = 1

$10 bill = 3

$20 bill = 2

Total number of bills in the bag = 13

Pulling a bill at random, the bills would have an expected value as follows:

For $1 bill, the expected value = \frac{7}{13}

For $5 bill, expected value = \frac{1}{13}

For $10 bill, expected value = \frac{3}{13}

For $20 bill, the expected value = \frac{2}{13}

Assuming that the $1 bill was pulled at random, then the expected value of the amount chosen is \frac{7}{13}.

6 0
3 years ago
Is this a valid experimental design?<br><br> A.<br><br> B.<br><br> C.<br><br> D.
Marrrta [24]

Answer: d

Step-by-step explanation: None needed

6 0
3 years ago
Read 2 more answers
Mildred bought 2-cent stamps, 4-cent stamps, and 5-cent stamps for $4.35. The number of 2-cent stamps exceeded the number of 5 c
vfiekz [6]

5 cent = 0.05x

<span><span>2 cent  </span>= 0.02(x+50)</span>

4 cent = 0.04(2x-10)

 

0.05x + 0.02(x+50) + 0.04(2x-10)

0.05x + 0.02x +1 + 0.08x -0.4 = 4.35

0.15x +0.6 = 4.35

0.15x = 3.75

X = 3.75 / 0.15 = 25

<span> 25 5 cent stamps ( 25*0.05 = 1.25)</span>

25+50 = 75 2 cent stamps ( 75*0.02 = 1.50)

2*25 =50-10 = 40 4 cent stamps ( 40*0.04 =1.60)

 

1.25 + 1.50 +1.60 = 4.35

5 cent = 25

2 cent = 75

4 cent = 40


8 0
3 years ago
I only need help on the estimate problems
Lena [83]
1. 140,00
2. 1,004,000
8 0
3 years ago
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