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Tanya [424]
3 years ago
10

Solve 4(3b + 2) – 5b = 43 for b. Question 4 options: A) b = 3 B) b = 5 C) b = –3 D) b = –5

Mathematics
2 answers:
GuDViN [60]3 years ago
8 0
The answer to this is 5
Lisa [10]3 years ago
7 0

Answer:

b = 5

Step-by-step explanation:

4 ( 3b + 2 ) - 5b = 43     Given

( 4 • 3b + 4 • 2 ) - 5b = 43      Distributive Property

12b + 8 - 5b = 43

12b - 5b + 8 = 43    Combine like terms

7b + 8 = 43

7b + 8 - 8 = 43 - 8     Subtraction Property of Equality

7b = 35

7b / 7 = 35 / 7      Division Property of Equality

b = 5

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The endpoints of a diameter of a circle are A(1,2) and (7.10). Find the area of the circle in terms of pi
OLEGan [10]

Answer:

25pi

Step-by-step explanation:

To solve this, create a right triangle between the two points. We know the distance of one leg is 6, and the distance of the other leg is 8. Use the Pythagorean theorem to solve for the diameter. You substitute 6 and 8 into the values of A and B. Once you get this, you get (6^2)+(8^2)=c^2. Once you further simplify this, you get 36 + 64 = c^2, which is 100 = c^2. Take the square roots of both sides to get the diameter as 10. Divide the diameter by 2 to get the radius. Square the radius and multiply it by pi to get the area. Doing this will get the result of 25 pi.

7 0
3 years ago
What expression is equivalent to
Anna [14]

Answer:

25z^{4} + 9z² + 4

Step-by-step explanation:

Using the rule of exponents

a^mb^n)^{p} = a^{mp}b^{np}

Given

(5z^2+3z+2)^{2}

= 5²z^{2(2)} + 3²z² + 2²

= 25z^{4} + 9z² + 4

8 0
3 years ago
Am i correct ?? for a brainly and pls explain
Paladinen [302]

Answer:

Yes.

Step-by-step explanation:

Because

6*4 =24

and 4*0 = 0,

24+0=24

have a nice day!!!

7 0
2 years ago
Read 2 more answers
Please I just need this one to pass. Please help!!!
Gwar [14]

ASA, HL, and SAS.

AAS wouldn't work, and LA  and LL don't exist

Hope this helps!

4 0
4 years ago
Kai calculates that he spends 15% of the school day in science class. If he spends 42 minutes in science class, how many minutes
MissTica
You need to first multiply 100 by 42 then divide by 15

6 0
3 years ago
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