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FromTheMoon [43]
2 years ago
6

What polynomial must be added to z2 + 4z – 7 in order for the sum of the two polynomials to be 2z2 + z + 7 ?

Mathematics
1 answer:
Inga [223]2 years ago
8 0

Answer: D. (z2-3z+14)

Step-by-step explanation:

took the test

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Is 31.669 an integer?
Nataly_w [17]

Answer:

No

Step-by-step explanation:

Integers are whole numbers 1, 2, 3, 4, so on and so on

5 0
3 years ago
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Roxi works as a receptionist for an electronics manufacturer. One week she reported that she worked 38.75 hours. The next week s
Volgvan
You’re finding the difference between the two numbers (subtraction). 1/4 is 0.25.

40.25 - 38.75 = 1.5

She worked one and a half more hours in the second week.
7 0
3 years ago
Add or subtract. Write your answer in scientific notation. 6.4 x 10^3+ 1.4 x 10^4+ 7.5 x 10^3
ycow [4]

Answer:

2.79 * 10^4

Step-by-step explanation:

6.4 x 10^3+ 1.4 x 10^4+ 7.5 x 10^3

The exponents need to be the same

6.4 x 10^3+ 14 x 10^3+ 7.5 x 10^3

Add the numbers

6.4 + 14+ 7.5 =27.9

Multiply by the exponent

27.9 * 10 ^3

But this is not in scientific notation

Move the decimal one place to the left and add one to the exponent

2.79 * 10^4

7 0
4 years ago
Evaluate the function f\left(x\right)=5x+2\mid11-5x\mid-4f(x)=5x+2∣11−5x∣−4 for x = -5.
Anestetic [448]

Answer:

f\left(5\right) = 43

Step-by-step explanation:

Given

f\left(x\right)=5x+2\mid11-5x\mid-4

Required

Solve for x = -5

This implies that we substitute -5 for x in f\left(x\right)=5x+2\mid11-5x\mid-4

f\left(5\right)=5(-5)+2\mid11-5(-5)\mid-4

Open all brackets

f\left(5\right) = -25+2\mid11+25\mid-4

f\left(5\right) = -25+2\mid36\mid-4

Absolute value of 36 is 36; Wo, we have:

f\left(5\right) = -25+2*36-4

f\left(5\right) = -25+72-4

f\left(5\right) = 43

7 0
3 years ago
The equation that passes through (3,6) and is perpendicular to 3x - 4y = - 2
Ad libitum [116K]

Answer:

A. y=-5/3x+1

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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