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mel-nik [20]
3 years ago
11

Evaluate 5 - 4b if b = -3​

Mathematics
1 answer:
victus00 [196]3 years ago
4 0

Answer:

17

Step-by-step explanation:

5-4b ; b=-3

- substitute b= -3 into the expression

5-4×(-3)

- multiply the numbers

(-4×(-3)=+12) 5+12

- add the numbers

(5+12=17)

SOLUTION: 17

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A baby pool is shaped like a short, wide cylinder and holds 52 ft3 of water. A medium pool measures 4 times the height and width
timama [110]

Answer:

D.\ 3328\ ft^3

Step-by-step explanation:

Given

Volume of baby pool = 52ft³

Required

Determine the volume of the medium pool

Volume of a cylinder is calculated as:

V = \pi r^2h

Hence, the volume of the baby pool is:

\pi r^2h = 52

where r and h are the radius and height of the baby pool

Represent the height and radius of the medium pool as H and R

From the given parameters in the question

H = 4 * h and R = 4 * r

H = 4 h and R = 4  r

The volume of the medium cylinder is calculated as

Volume = \pi R^2H

Substitute 4h for H and 4r for R

Volume = \pi (4r)^2(4h)

Open bracket

Volume = \pi (4r) * (4r) * (4h)

Volume = \pi 16r^2 * (4h)

Volume = \pi 16r^2 * 4h

Collect like terms

Volume = \pi r^2 * h * 4 * 16

Volume = \pi r^2  h * 64

Recall that \pi r^2h = 52

So, the expression becomes

Volume = 52 * 64

Volume = 3328

Hence, the medium pool can hold 3328ft^3 of water

3 0
3 years ago
HELP MEEEE!!!!!!!!!!!!!!!!
Jlenok [28]

Answer:

19 degrees

Step-by-step explanation:

You know the sum of the interior angles of a triangle is 180 degrees.

So then you can make the equation 82 + 41 + 3x = 180

By solving for x, you get the answer:

123 + 3x = 180

3x = 57

x = 19 degrees

Hope dis helps ya

7 0
3 years ago
Read 2 more answers
Three kids play tennis at the same tennis courts. Mark plays every fourth day, David plays every seventh day and Bryan plays eve
jonny [76]

Answer:

Wednesday (9 weeks later) = 10th October.

Step-by-step explanation:

We label the days with the initials of the names.

M= 4

D = 7

B = 6

LCM of 6 +7 = 42

LCM of 6+7 + 4 = 84

We find 84 is the amount of days we need to add on to july 18th

We first find the weeks 84/7 = 9 weeks.

As Wednesday July 18th is exclusive it would be 84 days after this event.

18+ 84 = 102 days.

31 days in july = 31

31 days in Aug = 31

30 days in Sept = 30

= 92

102-92 = 10

We now know date is Wednesday 10th October

We can check 84 days = 9 weeks

13 days in July makes 31st july

31 days in Aug makes 31st Aug

30 days in Sept makes 30th Sept

= 74 days + 10 days = 84

10th October is the checked date and we know it is also a Wednesday as Wednesday had stayed exclusive and prove that there are 7 days in the week to account x 9, to account for an exact 9 weeks later duration.

6 0
4 years ago
Read 2 more answers
How do you solve -3 x 5?
LiRa [457]
-15 is the answer, you just multiply it. And add the sign
5 0
3 years ago
Brainliest and 50 points
Annette [7]

Answer:

Using the distance formula, when I plugged in the information, the answer I got was the square root of 85. (B)

explanation:

C(x₁ , y₁) and T(x₂ , y₂) OR C(0,4) and T(-6,-3)

CT=√[(x₂ - x₁)² + (y₂ - y₁)²] =√[(-6-0)² + (-3 - 4)²]

CT=√[(36) + (49)} = CT = √85

4 0
3 years ago
Read 2 more answers
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