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stich3 [128]
3 years ago
8

I need help ASAP how ever gets the right answer first I wil mark Brainliest!!!

Mathematics
1 answer:
Lemur [1.5K]3 years ago
6 0
12 fee is the answer 2x6 equals 12.
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Which of the following se solutions to the inequality -7x+14>3x-6? Select all that apply. A. -10 B. 10 C. -5 D. 5 E. -3 F. 3
sweet-ann [11.9K]
A, C, E, and G i thinkk
8 0
3 years ago
Is 21 to the square root of 2 rational or irrational
Step2247 [10]
It is equal to 21/2 which is a rational number
3 0
3 years ago
2y+18=42 what is y, and how would you find it?
Nesterboy [21]

Answer:

y=12

Step-by-step explanation:

Use order of operations. Subtract 18 from both sides and the divide by 2.

2y+18 -18=42-18

2y=24

y=12

3 0
3 years ago
Suppose an isosceles triangle ABC has A = 45° and b = c = 4. What is the length of a^2?
Mila [183]
Since b = c, the angles B and C are congruent.
180 - 45 = 135
135/2 = =67.5

A = 45
B = 67.5
C = 67.5
a = ?
b = 4
c = 4

Since we know two sides and all three angles, we can use the law of sines to find a.

b/sin B = a/sin A

4/(sin 67.5) = a/(sin 45)

a = 4(sin 45)/(sin 67.5)

a^2 = (4(sin 45)/(sin 67.5))^2

a^2 = 9.37
4 0
3 years ago
What is the mystery number? It is less then 40. You say its name when you start at 3 and count by 3s.You say its name when you s
wariber [46]

Answer:

The number must be 30.

Step-by-step explanation:

The mystery number is less then 40.

You say its name when you start at 3 and count by 3s. This means that it is a multiple of 3.

You say its name when you start at 5 and count by 5s. This means that it is a multiple of 5.

The only two numbers that are multiples of 3 and 5 and less than 40 are 15 and 30.

Since we have been told that the number is not 15, the number must be 30.

8 0
3 years ago
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