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nata0808 [166]
2 years ago
10

PLS HELP!!! 7TH GRADE MATH

Mathematics
2 answers:
USPshnik [31]2 years ago
8 0

Answer for 1:

242

Answer for 2:

214.57

Answer for 3:

88.79

Explanation:

I used Goggle

Dominik [7]2 years ago
7 0

Answer:

The first picture is 72 ft²

Step-by-step explanation:

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andrew-mc [135]

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(c-a)(y-b) = (d-b)(x-a)

Point slope form is almost the same,

y - b = \dfrac{d-b}{c-a} (x-a)

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y - 0 = (1 - 0)/(-2 - 4) (x - 4)

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2.

y - -2 = (3 - -2)/(5 - -3) (x - -3)

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3.

y - 1 = (4 - 1)/(3 - -5) (x - -5)

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2 years ago
My age is the difference between twice my age in 4 years and twice my age 4 years ago how old am I?
Llana [10]

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Step-by-step explanation:

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a = 2(a+4) - 2(a-4)

a = 2a + 8 - 2a + 8

a = 2a - 2a + 8 + 8

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6 0
2 years ago
I need help with these two the same question just need to know whats y and x
Serjik [45]

Step-by-step explanation: A coordinate grid has two perpendicular lines, or axes (pronounced AX-eez), labeled just like number lines. The horizontal axis is usually called the x-axis. The vertical axis is usually called the y-axis. The point where the x- and y-axis intersect is called the origin

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2 years ago
Chapter 6, Section 1-D, Exercise 009 Is a Normal Distribution Appropriate? In each case below, is the sample size large enough s
Xelga [282]

Answer:

Step-by-step explanation:

Complete Question:

Chapter 6, Section 1-D, Exercise 009 Is a Normal Distribution Appropriate? In each case below, is the sample size large enough so that the sample proportions follow a normal distribution?

a) n=600 p=0.2

b) n=20, p=0.4

if np=10 and npq=10 then  the data follows normal distribution

a) np= 120,

q= 1-0.2= 0.8

npq= 600 ×0.2×0.4 = 48

Normal distribution is appropriate and sample size is large enough

b) np= 8

q= 1-0.4= 0.6

npq= 20 × 0.4×0.6= 4.8

sample size is not large enough so normal distribution is not appropriate.

4 0
3 years ago
Describe the sequence of basic rigid motions that shoews S1 = S2
telo118 [61]

Answer:

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Step-by-step explanation:

4 0
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