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8090 [49]
2 years ago
10

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:

<u>                Reasons                                         Statements                            </u>

  1.                                     1. Given
  2. \overline{BC}\cong\overline{EC}                                                2. Given
  3.                                    3. All vertical angles are congruent
  4. \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:

<u><em>The question is English is</em></u>

Number 289 less than 812

Let

x ----> the number

To find out the number subtract 289 from 812

so

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
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