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Natasha_Volkova [10]
3 years ago
8

Which is the following have the correction solution? Select all that apply.

Mathematics
1 answer:
Mars2501 [29]3 years ago
8 0

Answer:

(b) is correct.

Step-by-step explanation:

We substitute the given  value of x in each equation and see if they fit.

a) 3x + 7 = 10   Plug in x = -1:

3(-1) + 7 = 4  so this solution is incorrect>

b) is correct because

5(5+4) - 5 = 45 - 5 = 40.

c and d are incorrect.

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Answer:

A

Step-by-step explanation: I believe it's A because It's the opposite but I'm not 100% certain, because I don't remember inverse statements.

6 0
2 years ago
HELPP ASAP
elena55 [62]

Answer:

(4, -5)

(3, -2)

7 0
2 years ago
2. Janine walks on a circular track whose radius is 60 meters. If she walks a total of 100 meters, which of the
katrin2010 [14]

Answer:

0.53πrad

Explanations:

Given the radius of the circular track = 60metres

If she walks a total of 100 meters, the length of the arc of the circle = 100metres

To calculate the radian angle she rotates about the center of the track, we will use the formula for calculating the length of an arc

L = θ/360° × 2πr

100 = θ/360× 2π(60)

36000 = 120π × θ

36000 = 376.8θ

θ = 36000/376.8

θ = 95.5°

Since 180° = πrad

95.5° = x

x = 95.5π/180

x = 0.53π rad

6 0
3 years ago
PLEASE HELP ME!!! Ryan worked at a store for 3.5 days. He was paid $53.30 per day. He spent $24.75 to buy a gift for his mother.
Nadusha1986 [10]

Answer: 161.8

Step-by-step explanation:

6 0
2 years ago
Which equation is an equation of a circle with radius of 10 cm and center at (-3, 6)?
Musya8 [376]
The equation for a circle is 
(x-h)^2 + (y-k)^2 = r^2
(-3,6)
-3 is h 
6 is k 

(x+3)^2 + (y-6)^2 = 10^2
10^2 = 100 

(x+3)^2 + (y-6)^2 =100
The answer is B!
7 0
3 years ago
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