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Anastasy [175]
3 years ago
11

Help on this please i need help so much

Mathematics
2 answers:
attashe74 [19]3 years ago
7 0
The correct answer for each is
a= 390.8
b= 136.8
mariarad [96]3 years ago
4 0
The first one is 391
The second one is 109
Brainliest please:)
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Use the Distributive Property to write an expression that is<br> equivalent to 4(y - 3).
Nonamiya [84]

Answer:

4y-12

Step-by-step explanation:

To multiply a sum (or difference) by a factor, each summand (or minuend and subtrahend) is multiplied by this factor and the resulting products are added (or subtracted).

If the operation outside the parentheses (in this case, the multiplication) is commutative, then left-distributivity implies right-distributivity and vice versa, and one talks simply of distributivity.

5 0
3 years ago
Doug had been working 20 hours per week at a pet store for $8.00 per hour. His pay was increased to $8.50 per hour, and his hour
stellarik [79]

Answer:

$44

Step-by-step explanation:

First, find how much he was making originally:

Multiply the number of hours he worked by the amount he got per hour:

20(8)

= 160

Then, find how much he gets now:

24(8.50)

= 204

To find his total weekly pay increase, find the difference between them:

204 - 160

= 44

So, his total weekly pay increase is $44

5 0
2 years ago
A softball pitcher has a 0.675 probability of throwing a strike for each pitch and a 0.325 probability of throwing a ball. If th
Dafna11 [192]

Answer:

The probability that exactly 19 of them are strikes is 0.1504

Step-by-step explanation:

The binomial probability parameters given are;

The probability that the pitcher throwing a strike, p = 0.675

The probability that the pitcher throwing a ball. q = 0.325

The binomial probability is given as follows;

p(x) = _{n}C_{x}\cdot p^{x}\cdot q^{1-x}

Where:

x = Required probability

Therefore, the probability that the pitcher throws 19 strikes out of 29 pitches is found as follows;

The probability that exactly 19 of them are strikes is given as follows;

\binom{29}{19}(0.675)^{19}0.325^{10} = \frac{29!}{19!\times 10!}\times (0.675)^{19}\times 0.325^{10} = 0.1504

Hence the probability that exactly 19 of them are strikes = 0.1504

8 0
3 years ago
Which expression is a factor of 12x2 + 29x - 8?
-Dominant- [34]

Answer:

Factors are: 3x+8 & 4x-1

Step-by-step explanation:

12x² + 29x - 8

12x² + 32x - 3x - 8

4x(3x + 8) -1(3x + 8)

(3x + 8)(4x-1)

4 0
3 years ago
I’m so confused ahhhhh
Kipish [7]

Answer:

91.................

4 0
2 years ago
Read 2 more answers
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