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aliina [53]
2 years ago
12

Please help I will mark brainliest

Mathematics
1 answer:
Aliun [14]2 years ago
6 0
5 is congruent to 4 : Vertical Angle Theorem

7 is congruent to 3 : Corresponding Angles

4 is congruent to 1 : Alternate Interior Angle Theorem

-i have geometry too!!
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2. f(x)=4x+1 and ​g(x)=x2−4x−5​, find ​(g◦​f)(4​).
Goryan [66]

Answer:

(g · f)(4) = 45

Step-by-step explanation:

f(x)=4x+1

g(x)=x² - 4x- 5

(g · f)(x) = 4(x² - 5) + 1

(g · f)(4) = 4(4² - 5) + 1

Following pemdas

(g · f)(4) = 4(16 - 5) + 1

(g · f)(4) = 4(11) + 1

(g · f)(4) = 44 + 1

(g · f)(4) = 45

8 0
1 year ago
David can type 90 words a minute.<br> How many words can be typed in 9.5 minutes?
artcher [175]

Answer:

855

Step-by-step explanation:

90x9.5=855

4 0
2 years ago
Read 2 more answers
a copy machine can print 810 copies every 9 minutes. A laser printer printed 1,350 copies. How long did it take to print?
Gre4nikov [31]

Answer:

15

Step-by-step explanation: You would think 15. 810 copies every 9, minutes. Nine divided by 810 equals 90. 90 copies every minute. 1,350 divided by 90 is fifteen. =fifteen.

5 0
2 years ago
Read 2 more answers
Natalie buys a cooper wire that is 3 feet long. The cost of the wire is $1.25 per foot, including tax. What is the total cost, i
Mnenie [13.5K]

Answer:

$3.75

Step-by-step explanation:

Given:

Natalie buys a cooper wire that is 3 feet long.

The cost of the wire is $1.25 per foot.

Question asked:

What is the total cost, in dollars, of Natalie's wire?

Solution:

<u>By unitary method:</u>

Total length of wire = 3 feet

Each foot of wire cost = $1.25

3 feet of wire cost = $1.25 \times 3 = $3.75

Thus, total cost of wire is $3.75

5 0
3 years ago
Find the general solution of y\"+9y=t^2*e^3t+6.
Fofino [41]
We are given with the equation y"+ 9 y = t^2 * e^3 t + 6 and asked to determine the general solution to this equation. we convert the equation into r^2 + 9 = 0. The solution to this equation is r = +/- 3i. This solution converted to trigonometric function is equivalent to <span>y</span>= <span>C1 </span>cos3t + <span>C2 </span>sin<span>3t. </span>
3 0
3 years ago
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