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Elanso [62]
2 years ago
14

Please answer! Find EF in the trapezoid. EF= (Everything in picture above)

Mathematics
1 answer:
BARSIC [14]2 years ago
8 0
Ed because 2 and 8 are equal
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Given the system of inequalities:
STatiana [176]
Slope intercept form : y = mx + b

4x - 5y < 1
-5y < -4x + 1
y > 4/5x - 1/5 <== slope intercept form

y - x > 3
y > x + 3 <== slope intercept form
8 0
3 years ago
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The length of a rectangle is 3cm more than twice the width. The perimeter of the rectangle is 42 cm. Find the dimensions of the
bogdanovich [222]
The width is 6cm
And the length is two times + 3 of the width
6 X 2 + 3 = 15
Add all 4 sides for the perimeter 6+6+15+15=42
The the dimensions are a rectangle that is 6cm wide and 15cm tall
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2 years ago
Andrew took a math test with 40 questions. If he scored an 85%, how many questions did he get correct?
puteri [66]
Andrew answered 34 questions correctly.
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4 0
3 years ago
F(x) = <img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%2B7%7D%20-%5Csqrt%7Bx%5E2%2B2x-15%7D" id="TexFormula1" title="\sqrt{x+7} -\
elena-s [515]

Answer:

x >= -7  ................(1a)

x >= 3   ...............(2a1)

Step-by-step explanation:

f(x) =  \sqrt{x+7}-\sqrt{x^2+2x-15}  .............(0)

find the domain.

To find the (real) domain, we need to ensure that each term remains a real number.

which means the following conditions must be met

x+7 >= 0  .....................(1)

AND

x^2+2x-15 >= 0 ..........(2)

To satisfy (1),  x >= -7  .....................(1a) by transposition of (1)

To satisfy (2), we need first to find the roots of (2)

factor (2)

(x+5)(x-3) >= 0

This implis

(x+5) >= 0 AND (x-3) >= 0.....................(2a)

OR

(x+5) <= 0 AND (x-3) <= 0 ...................(2b)

(2a) is satisfied with x >= 3   ...............(2a1)

(2b) is satisfied with x <= -5 ................(2b1)

Combine the conditions (1a), (2a1), and (2b1),

x >= -7  ................(1a)

AND

(

x >= 3   ...............(2a1)

OR

x <= -5 ................(2b1)

)

which expands to

(1a) and (2a1)   OR  (1a) and (2b1)

( x >= -7 and x >= 3 )  OR ( x >= -7 and x <= -5 )

Simplifying, we have

x >= 3  OR ( -7 <= x <= -5 )

Referring to attached figure, the domain is indicated in dark (purple), the red-brown and white regions satisfiy only one of the two conditions.

3 0
3 years ago
Read 2 more answers
What is the gcf of 96 and 40
Naddika [18.5K]

Answer:

8

Step-by-step explanation:

40 factors: 1 2 4 5 8 10 20

96 factors  1 2 3 4 6 8 12 16 24 32 48

5 0
2 years ago
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