Please answer correctly! I will Mark you Brainliest!

Mathematics

2 answers:

White raven [17]2 years ago

6 0

Answer:

Trapezoid

Solve for perimeter

Step-by-step explanation:

Hope It Help

<h2>Brainliest please</h2>

-BARSIC- [3]2 years ago

4 0

Tomis the way anwsers on Please anwser correctly the perimeter is 9

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What is the solution to the equation

Dafna11 [192]

$\sqrt{4t+5}=3-\sqrt{t+5}\\\\D:4t+5\geq0\ \wedge\ t+5\geq0\ \wedge\ \sqrt{t+5}\leq3\\\\t\geq-\dfrac{5}{4}\ \wedge\ t\geq-5\ \wedge\ t\leq6$

therefore
$D:x\in\left< -\dfrac{5}{4};\ 6\right>$

$\sqrt{4t+5}=3-\sqrt{t+5}\ \ \ |^2\\\\(\sqrt{4t+5})^2=(3-\sqrt{t+5})^2\ \ \ |use:(a-b)^2=a^2-2ab+b^2\\\\4t+5=3^2-2\cdot3\cdot\sqrt{t+5}+(\sqrt{t+5})^2\\\\4t+5=9-6\sqrt{t+5}+t+5\ \ \ \ |-t\\\\3t+5=14-6\sqrt{t+5}\ \ \ \ |-14\\\\3t-9=-6\sqrt{t+5}\ \ \ \ |change\ signs$
$9-3t=6\sqrt{t+5}\ \ \ \ |:3\\\\3-t=2\sqrt{t+5}\ \ \ \ |^2\\\\(3-t)^2=(2\sqrt{t+5})^2\\\\3^2-2\cdot3\cdot t+t^2=4(t+5)\\\\9-6t+t^2=4t+20\ \ \ |-4t-20\\\\t^2-10t-11=0\\\\t^2+t-11t-11=0\\\\t(t+1)-11(t+1)=0\\\\(t+1)(t-11)=0\iff t+1=0\ \vee\ t-11=0\\\\t=-1\in D\ \vee\ t=11\notin D$
Answer: t = -1.

7 0

3 years ago

Read 2 more answers

Malcolm ran the 440 yard dash and the 220 yard dash at a track meet.there are 3 feet in one yard . How many total feet did Malco

SVETLANKA909090 [29]

Add both of thr meters together (660 meters) and multiply by 3 (the feet). you should get 1980 feet

6 0

3 years ago

Help please! thank you.

grin007 [14]

Answer:

since the bases (X) are the same only the exponents will be subtracted and b is greater than a to get a negative exponent