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stellarik [79]
3 years ago
6

Answer please! i will give brainliest !!!!

Mathematics
2 answers:
mrs_skeptik [129]3 years ago
7 0

Answer:

B. WATER CAN DISSOLVE SO MANY SUBSTANCES

Step-by-step explanation:

Damm [24]3 years ago
4 0
The correct answer is b :)
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2r2 + 3s3 − r2 + 4t2 − r2 if r = −2, s = −3, and t = 5.
Elza [17]

First, simplify the expression 2r^2 + 3s^3 - r^2 + 4t^2 - r^2. Here you have three terms with r^2, group them in the following way:

2r^2 + 3s^3 - r^2 + 4t^2 - r^2=2r^2-r^2-r^2+3s^3+4t^2=(2r^2-r^2-r^2)+3s^3+4t^2=

=r^2(2-1-1)+3s^3+4t^2=3s^3+4t^2.

Then substitute s=-3 and t=5:

3s^3+4t^2=3\cdot (-3)^3+4\cdot 5^2=3\cdot (-27)+4\cdot 25=-81+100=19.

Answer: 19.

3 0
3 years ago
Read 2 more answers
Brandon is paid 150% of his regular hourly rate for overtime hours. He is paid \$45.00 an hour for overtime hoursWhat is his reg
Ne4ueva [31]

Answer:

Regular hourly rate for Brandon is $30

Step-by-step explanation:

Let the payment for regular hours be $x

given that

Brandon is paid 150% of his regular hourly rate for overtime hours

payment for overtime hours = 150% of payment for regular hours

payment for overtime hours = 150/100 * x = 3x/2

Given that He is paid \$45.00 an hour for overtime hours

thus,

3x/2 = 45

=> x = 45*2/3 = 30

Thus,  regular hourly rate for Brandon is $30

3 0
3 years ago
What is the reciprocal of 2 1/4
Anni [7]
2 1/4 = 9/4 so the reciprocal is 4/9 (I believe)
7 0
3 years ago
Read 2 more answers
You pick a card at random. 4 5 6 7 What is P(less than 7)? Write your answer as a fraction or whole number.
marta [7]

Answer:

3/4 is less than 7.

Step-by-step explanation:

There are 4 numbers but there are only 3 less than 7.

6 0
2 years ago
What is the image point of (1, 4) after a translation left 5 units and down 5<br> units?
Marina86 [1]

Answer:

(-4,-1)

All you have to do to find it is subtract x by 5 and subtract y by 5. :)

4 0
3 years ago
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