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3 years ago

What is the measure of ∠PQR ? Enter your answer in the box. °

Mathematics

2 answers:

BigorU [14]3 years ago

7 0

I believe its 30 rn im taking that question aswell if it isnt 30 ill tell you what it is

xxTIMURxx [149]3 years ago

3 0

The 3 inside angles of a triangle need to = 180 degrees
you are given 70 and 80 which = 150 degrees ( 70 +80 = 150)

so the missing angle (PQR) = 180 - 150 = 30 degrees

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A line is perpendicular to y = - 1/4x-9 What is the slope of this perpendicular line?

Kryger [21]

Answer:

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3 years ago

Somebody please help me

jolli1 [7]

Answer:

A). Scale factor = $\frac{1}{4}$

B). Length of the unknown side = 2.75 feet

Step-by-step explanation:

Part A

Since, the large rectangle was scaled by a scale factor 'k' to form the smaller rectangle,

Scale factor = $\frac{\text{Side length of the image}}{\text{Side length of the preimage}}$

= $\frac{\text{Side length of the smaller rectangle}}{\text{Side length of the larger rectangle}}$

= $\frac{4}{16}$

= $\frac{1}{4}$

Part B

Scale factor = $\frac{\text{Side length of the smaller rectangle}}{\text{Side length of the larger rectangle}}$

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Therefore, side length of the unknown side = $\frac{11}{4}$ = 2.75 feet

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2 years ago

SOlve the system of equations using substitution y=2x-10 y=4x-8

dezoksy [38]

It should be,
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Now you do,
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