3 years ago

I really need helppp!

Mathematics

1 answer:

irakobra [83]3 years ago

6 0

Answer:

Step-by-step explanation:

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9. Zane owes his dad money for his cell phone that he

ozzi

Answer:

T=45m+23

Step-by-step explanation:

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3 years ago

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2. Shannon wants to build a regular pentagonal sun deck. She is going to

dalvyx [7]

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3 years ago

Please help!!! I'm super confused with this one, show work so that I can figure out what I did wrong.

givi [52]

Answer: The length of CU is 117 units.

Step-by-step explanation:

Given: ΔWCD≈ΔWUV

We know that if two triangles are similar, then their corresponding sides are proportional.

∴ $\frac{WU}{WC}=\frac{WV}{WD}$

$\frac{36x-1}{26}=\frac{110}{20}\\\Rightarrow\ 36x-1=\frac{11}{2}\times26\\\Rightarrow36x-1=143\\\Rightarrow\ 36x=143+1\\\Rightarrow\ 36x=144\\\Rightarrow\ x=4$

∴ WU= $36(4)-1=143$

Also , WU=WC+CU

⇒CU=WU-WC

⇒CU=143-26=117 units

5 0

3 years ago

PLEASE HELP ASAP

Softa [21]

$x_1=-4\qquad\qquad x_2=3\\\\\\\big(x-x_1\big)\big(x-x_2\big)=0\\\\\big(x-(-4)\big)\big(x-3\big)=0\\\\\big(x+4\big)\big(x-3\big)=0\\\\x\cdot x-3\cdot x+4\cdot x+4\cdot(-3)=0\\\\x^2-3x+4x-12=0\\\\\boxed{x^2+x-12=0}$

7 0

4 years ago

Solve the system of linear equations using either substitution or the elimination method.

Lelechka [254]

Answer:

x=2;y=2

Step-by-step explanation:

2x+y=6..........1

3x-y=4............2

adding equation1 with equation 2

2x+y+3x-y=6+4

5x=10

x=10/5=2

substituting vslue of y in equation 1

2×2+y=6

y=6-4

y=2

4 0

3 years ago