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2 years ago

Please help asap. Thank you so much! Question 1/7

Mathematics

2 answers:

solniwko [45]2 years ago

5 0

What class is for ? If you tell me I could take out my notes

Cloud [144]2 years ago

3 0

Answer:

Reasons Statements

1. Given
$\overline{BC}\cong\overline{EC}$ 2. Given
3. All vertical angles are congruent
$\Delta{ABC}\cong\Delta{DEC}$ 4. SAS

Step-by-step explanation:

You have to prove the triangle congruent by SSS (side side side), SAS (side angle side), ASA (angle side angle), AAS (angle angle side), and HL (hypotenuse leg). I proved this triangle by SAS because they already told us that < A and < D are congruent and that line BC is congruent to line EC. So I just had to prove that <ACB and <DCE are congruent, and since they are vertical angles they have to be congruent.

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Use the quadratic formula to findntge roots of the equation 2X2-28X+98=0

JulijaS [17]

The answer to that equation is {7,7}

3 0

3 years ago

Giving brainless! Don’t answer if you don’t know I’ll flag you.

GenaCL600 [577]

Answer:

The sales tax is $0.40

Step-by-step explanation:

10 x 0.04 = 0.4

0.04 is 40% when multiplying

4 0

3 years ago

in the circl below, AD is diameter and AB is tangent at A. Suppose mADC=228*, find the measures of mCAB and mCAD. Type your nume

Andrew [12]

Given:

AD is diameter of the circle, AB is the tangent, and measure of arc ADC is 228 degrees.

To find:

The $m\angle CAB$ and $m\angle CAD$ .

Solution:

AD is diameter of the circle. So, the measure of arc AD is 180 degrees.

$m(arcADC)=m(arcAD)+m(arcDC)$

$228^\circ=180^\circ+m(arcDC)$

$228^\circ-180^\circ+=m(arcDC)$

$48^\circ+=m(arcDC)$

The measure inscribed angle is half of the corresponding subtended arc.

$m\angle CAD=\dfrac{1}{2}\times m(arcDC)$

$m\angle CAD=\dfrac{1}{2}\times 48^\circ$

$m\angle CAD=24^\circ$

AB is the tangent. So, $m\angle BAD=90^\circ$ because radius is perpendicular on the tangent and the point of tangency.

$m\angle BAD=m\angle CAB+m\angle CAD$

$90^\circ=m\angle CAB+24^\circ$

$90^\circ -24^\circ=m\angle CAB$

$66^\circ=m\angle CAB$

Therefore, $m\angle CAB=66^\circ$ and $m\angle CAD=24^\circ$ .

4 0

2 years ago

Numărul cu 289 mai mic decât 812

blondinia [14]

Answer:

The number is 523

Step-by-step explanation:

The question is English is

Number 289 less than 812

Let

x ----> the number

To find out the number subtract 289 from 812

$812-289=523$

therefore

The number is 523

4 0

3 years ago

What is the domain of the function

Ksenya-84 [330]

Answer:

$x\geq -6$

Step-by-step explanation:

The domain of a function is all of the values that $x$ can be under that specific function. In this case, we're asking what values of $x$ allow $\sqrt{\frac{1}{3} x+2}$ to exist.

In order for square roots to exist, the quantity under the square root must be greater than or equal to $0$ , because you can't take the square root of a negative number. Therefore, we can write the following inequality to solve for $x$ :

$\frac{1}{3}x+2\geq 0$

Solving this inequality, we get:

$\frac{1}{3}x+2\geq 0$

$\frac{1}{3}x\geq -2$ (Subtract $2$ from both sides of the inequality to isolate $x$ )

$x\geq -6$ (Multiply both sides of the inequality by $3$ to get rid of $x$ 's coefficient)

Hope this helps!

8 0

3 years ago