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3 years ago

-3 < 5c + 7 < 22 algebra

Mathematics

1 answer:

Alexus [3.1K]3 years ago

8 0

Answer:=

Solution: -2<c<3

Interval Notation: (-2,3)

Step-by-step explanation:

-3<5c+7<22

-3<5c+7 : c>-2

5c+7<22 : c<3

combine the intervals

c>-2 and c<3

-2<c<3

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Right triangles and trigonometry help!

Maslowich

Step-by-step explanation:

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3 years ago

The functiong(x)is graphed below.

gregori [183]

Pstepstep by step ok

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3 years ago

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

tester [92]

Answer:

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3 years ago

the length of a rectangle is 6in.more than than its width .Its area is 50 sq.in Find the width of the rectangle....

yulyashka [42]

L=6+W
A=LW
sub 6+W for L
A=(6+W)(W)
expand
oh, A=50
50=W²+6W
minus 50 both sides
0=W²+6W-50
we gots to use quadratic formula
for
aW²+bW+c=0
W= $\frac{-b+/- \sqrt{b^2-4ac} }{2a}$
we got
a=1
b=6
c=-50

W= $\frac{-(6)+/- \sqrt{(6)^2-4(1)(-50)} }{2(1)}$
W= $\frac{-6+/- \sqrt{36+200} }{2}$
W= $\frac{-6+/- \sqrt{236} }{2}$
W= $\frac{-6+/- 2\sqrt{59} }{2}$
W= $-3+/- \sqrt{59}$

W= $-3+ \sqrt{59}$ or W= $-3- \sqrt{59}$
aprox
W=-10.6811 or W=4.68115
can't be negative width

width=4.68115 or -3√59

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3 years ago

If n ll m, find the value of x and the value of z.

aliina [53]

Answer: A

Explanation: the two triangles are proportional, so find the “proportion” between the two sides
12/4=3
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3z=6

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3 years ago