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dlinn [17]
2 years ago
9

I need help with math

Mathematics
1 answer:
Tanzania [10]2 years ago
5 0
The answer is A. Jonna's brother's age is b so her age is b+4. The sum of their ages would be b+b+4 which equals 2b+4
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What is the circumference of the circle below? Use the formula C = 2tr.
alexandr1967 [171]

Answer: B

Step-by-step explanation:

The formula for circumference of a circle is 2 pie radius (2πr)

1. radius=5

2 so 2π(5)

3 2x5=10

4. 10π

5 0
2 years ago
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The sum of 5 times a number and 4 is equal to 6
g100num [7]

Answer:

5(x+4)=6

5 times a number and (+) 4 is equal to 6.

7 0
2 years ago
What are the solutions of the quadratic equation? 4x^2+34x+60=0
insens350 [35]

Answer:

Option 3) -6,-5/2

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form

ax^{2} +bx+c=0

is equal to

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

in this problem we have

4x^{2} +34x+60=0  

so

a=4\\b=34\\c=60

substitute in the formula

x=\frac{-34(+/-)\sqrt{34^{2}-4(4)(60)}} {2(4)}

x=\frac{-34(+/-)\sqrt{196}} {8}

x=\frac{-34(+/-)14} {8}

x_1=\frac{-34(+)14} {8}=-\frac{20}{8}=-\frac{5}{2}

x_2=\frac{-34(-)14} {8}=-6

6 0
2 years ago
Audrey had $20 and bought gum for $1.10, a soda for $.99, and a bag of chips for $3.98. How much money does she have left?
S_A_V [24]
Equation:

let x be amount of money she las left

x= 20 - 1.10 - 0.99 - 3.98

x= 13.93

answer: D

hope this helps!

p.s. can i have brainliest?
8 0
3 years ago
PLS Answer fast! Will mark Brainlest. Worth 20 points!
3241004551 [841]

Answer:

The answer for X is 24 degrees. barinliest and thx plz.

Step-by-step explanation:

add up all of the degrees on the bigger rectangle (94+41). that equals 135. then 180-135=45.

then you add the numbers in the smaller rectangle (180-56). and that equals 24.  

7 0
2 years ago
Read 2 more answers
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