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Norma-Jean [14]
2 years ago
10

Evaluate 8.1p + 7.9 when p = 6 and r = 7

Mathematics
1 answer:
matrenka [14]2 years ago
8 0

Answer:

56.5

Step-by-step explanation:

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Select the action you would use to solve 3x = 12. Then select the property
podryga [215]

Answer:

C: Divide both sides by 3

F: Division property of equality

Step-by-step explanation:

3x=12\\x=\frac{12}{3}\\x=4

3 0
2 years ago
Identify the augmented matrix that represents this liner system <br> 2x-3y=4 <br> 5x+7y=39
Lisa [10]

Answer:

its c edg 2020

Step-by-step explanation:

7 0
2 years ago
Can someone help me with this ?
romanna [79]

Answer:

\large\boxed{S.A.=467\ in^2}

Step-by-step explanation:

We have two triangles and three rectangles.

The formula of an area of a triangle:

A_{triangle}=\dfrac{bh}{2}

b - base

h - height

The formula of an area of a rectangle:

A_{rectangle}=lw

l - length

w - width

TRIANGLE:

b = 11 in, h = 7 in

A_1=\dfrac{(11)(7)}{2}=\dfrac{77}{2}=37.5\ in^2

RECTANGLE 1:

l = 11 in, w = 14 in

A_2=(11)(14)=154\ in^2

RECTANGLE 2:

l = 9 in, w = 14 in

A_3=(9)(14)=126\ in^2

RECTANGLE 3:

l = 8 in, w = 14 in

A_4=(8)(14)=112\ in^2

The Surface Area:

S.A.=2A_1+A_2+A_3+A_4

Substitute:

S.A.=2(37.5)+154+126+112=467\ in^2

6 0
3 years ago
Question 3
zlopas [31]

Answer:

Area = 19.05 feet squared

Step-by-step explanation:

By applying sine rule in ΔABC,

sin(∠CAB) = \frac{\text{Opposite side }}{\text{Hypotenuse}}

sin(60°) = \frac{BC}{AC}

\frac{\sqrt{3}}{2}=\frac{BC}{4}

BC = 2√3

Area of a parallelogram is given by the formula,

Area = Base × Height

        = 5.5 × 2√3

        = 11√3

        = 19.05 ft²

Therefore, answer is Area = 19.05 ft squared.

3 0
3 years ago
A florist charges $25 for a vase plus $4.50 for each flower. The total charge for the vase and flowers is given by the function
gtnhenbr [62]
Part 1
All that’s being affected here is the b value in y=mx+b, so your line will just move up to have a y-intercept at (0,35) the equation will be y=4.5x+35

Part 2
Here the m value is being changed so your line will just flatten out a bit and the new equation will be y=3x+25

Hope this helps!
7 0
2 years ago
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