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Ilia_Sergeevich [38]
2 years ago
9

1.) (-6) (-7) =

Mathematics
2 answers:
Jobisdone [24]2 years ago
5 0

\left(-6\right)\left(-7\right)=42

46=2\quad :\quad \mathrm{False}

\left(-9\right)+25=16

\left(13\right)\left(-3\right)=-39

14+3=17

nata0808 [166]2 years ago
4 0

Answer:

1) 36

2) False

3) 16

4) -39

5) 17

Step-by-step explanation:

When multiply two negatives, the final answer is positive.

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2. Function C takes time for its input and gives a student's Monday class for its output.
kaheart [24]

Answer:

We know that C(T) is a function where you input the time T, and the output will be the student's Monday class.

a) A student has English at 10:00.

Here we can use T = 10:00 as the input, and the output will be the class, English.

Then this can represent this with:

C(10:00) = English.

b) Write a statement to describe the meaning of C(11:15) = chemistry.

for C(11:15) = Chemistry

The input, the time, is 11:15

The output, the class, is chemistry.

The student has a chemistry class at 11:15

6 0
2 years ago
-3x^2 + 2y^2 + 5xy - 2y + 5x^2 - 3y^2<br><br> x = 2 , y = -1
rewona [7]
X=2 Y=-1 plug them into the equation
-3(2)^2 + 2(-1)^2 + 5(2)(-1) -2(-1) + 5(2)^2 -3(-1)^2

36+4-10+2+100+9

40-10+2+100+9

30+2+100+9

132+9

141
5 0
3 years ago
X
Debora [2.8K]

Answer:

the side of a square is 45 m

Step-by-step explanation:

The computation of the side of the square field that contains the similar area as compared with rhombus is given below:

As we know that

Area of rhombus = Base × Altitude

= 81 × 25

= 2025

And, area of Square =  Side × side

2025 = side^2

side  = √2025

= 45m

Hence, the side of a square is 45 m

8 0
3 years ago
Is 8.27 rational or irrational?
BlackZzzverrR [31]

Answer:

Rational

Step-by-step explanation:

A terminating decimal is a rational number.

A repeating decimal is a irrational number.

Since 8.27 terminates, it is rational.

3 0
3 years ago
Read 2 more answers
Sara's savings account balance changed by $34 one week by -$67 the next week.which amount represents the greatest change?
rjkz [21]
-$67 because that is a greater change in amount than the other. (It also has a greater absolute value)
8 0
3 years ago
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