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iren [92.7K]
3 years ago
11

Question 10 please :(

Mathematics
2 answers:
Maru [420]3 years ago
7 0
M=9.25-(4.5+3.5)
m=1.25
dezoksy [38]3 years ago
6 0
4.5 + 3.5 = 4 + 3 + 1 = 8
Janet has 1.25 remaining in her savings.
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Find the following sums. Please help.
34kurt

Answer:

5m-n-4p

4a^2+6x-3

Step-by-step explanation:

3m-4n +7p

-5m +9n -6p

+7m -6n -5p

----------------------

Combine like terms

3m-4n +7p

-5m +9n -6p

+7m -6n -5p

----------------------

(3-5+7)m  +(-4+9-6)n  +(7-6-5)p

5m-n-4p

a^2  -3x +1

a^2   +9x -6

2a^2 +0x +2

----------------------

Combine like terms

a^2  -3x +1

a^2   +9x -6

2a^2 +0x +2

----------------------

(1+1+2)a^2 +(-3+9+0)x +(1-6+2)

4a^2+6x-3

6 0
2 years ago
Solve............... the system
nadezda [96]
5y=-25,
y=-5
correct answer (1,-5)
7 0
3 years ago
Read 2 more answers
Adam is building a rectanglar swimming pool. The perimeter of the pool must be no more then 120 feet. If the length of the pool
jasenka [17]

Answer:

W\leq 38\ ft

The maximum width must be 38\ ft

Step-by-step explanation:

Let

L ----> the length of the rectangular pool

W ---> The width of the rectangular pool

we know that

P\leq 120\ ft  

P=2(L+W)

so

2(W+L)\leq 120 ----> inequality A

we have

L=22\ ft

substitute the value of L in the inequality A

2(W+22)\leq 120

simplify

(W+22)\leq 60

W\leq 60-22

W\leq 38\ ft

The maximum width must be 38\ ft

3 0
3 years ago
Use law of sines or law of cosines to find the length of side AB Please show work !!
scoray [572]

Answer:

AB = 11.3

Step-by-step explanation:

Given

The attached triangle

Required

Length AB

To do this, we make use of sine law which is represented as:

\frac{a}{\sin(a)} = \frac{b}{\sin(b)} = \frac{c}{\sin(c)}

So, we have:

\frac{15}{\sin(70)} = \frac{AB}{\sin(45)}

Make AB the subject

AB = \frac{15}{\sin(70)} * \sin(45)

AB = \frac{15}{0.9397} *0.7071

AB = 11.3

7 0
3 years ago
122. Write the equation of the line that is
Marina CMI [18]

When a line is given in the form

y=mx+q

The slope of the line is m. So, in this case, the slope of y=x-5 is 1.

Given a slope m, you find the slope of a perpendicular line m' by imposing

m\cdot m' = -1

So, if the given line has slope 1, a perpendicular line has slope m' given by

1 \cdot m' = -1

and thus m'=-1

So, we want a line with slope -1 and passing through (12,-1). Using the fomula

y-y_0=m(x-x_0)

we get

y-(-1)=-1(x-12) \iff y+1=-x+12 \iff y=-x+11

5 0
3 years ago
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