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4 years ago

If △ABC is an isosceles triangle where AB¯≅AC¯, m∠A=(2x−20)°, and m∠B=(3x+5)°, then m∠C=__________°.

Mathematics

2 answers:

natta225 [31]4 years ago

6 0

M<c=11 thats the answwer

kotegsom [21]4 years ago

3 0

Let ABC be an isosceles triangle with AB = AC. Let M denote the midpoint of BC (i.e., M is the point on BC for which MB = MC). Thena) Triangle ABM is congruent to triangle ACM.b) Angle ABC = Angle ACB (base angles are equal)c) Angle AMB = Angle AMC = right angle.d) Angle BAM = angle CAM

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Solve the quadratic by factoring. x^2-5x-31=5

torisob [31]

Answer:

$x = - 4\: or \: x = 9$

Step-by-step explanation:

make one side equal to zero:

${x}^{2} - 5x - 36 = 0$

find two factors that multiply to -36 and add to -5 (-9 & 4)

${x }^{2} - 9x + 4x - 36 = 0$

factorise

$x(x - 9) + 4(x - 9) = 0$

$(x + 4)(x - 9) = 0$

solve for x

$x = - 4 \: or \: x = 9$

5 0

4 years ago

Simplify: (8t4 + 6 )+(914 – 2ť + 6t? – 6 )

vekshin1

Answer:t

2⋅(17t 2 −2t+6)

Step-by-step explanation:

v(8•(t4))+6)+((((9•(t4))-(2•(t3)))+(2•3t2))-6)

STEP

Equation at the end of step

((8•(t4))+6)+((((9•(t4))-2t3)+(2•3t2))-6)

STEP

Equation at the end of step

((8•(t4))+6)+(((32t4-2t3)+(2•3t2))-6)

STEP

Equation at the end of step

(23t4 + 6) + (9t4 - 2t3 + 6t2 - 6)

STEP

Pulling out like terms

6.1 Pull out like factors :

17t4 - 2t3 + 6t2 = t2 • (17t2 - 2t + 6)

(8•(t4))+6)+((((9•(t4))-(2•(t3)))+(2•3t2))-6)

STEP

Equation at the end of step

((8•(t4))+6)+((((9•(t4))-2t3)+(2•3t2))-6)

STEP

Equation at the end of step

((8•(t4))+6)+(((32t4-2t3)+(2•3t2))-6)

STEP

Equation at the end of step

(23t4 + 6) + (9t4 - 2t3 + 6t2 - 6)

STEP

Pulling out like terms

6.1 Pull out like factors :

17t4 - 2t3 + 6t2 = t2 • (17t2 - 2t + 6)

(8•(t4))+6)+((((9•(t4))-(2•(t3)))+(2•3t2))-6)

STEP

Equation at the end of step

((8•(t4))+6)+((((9•(t4))-2t3)+(2•3t2))-6)

STEP

Equation at the end of step

((8•(t4))+6)+(((32t4-2t3)+(2•3t2))-6)

STEP

Equation at the end of step

(23t4 + 6) + (9t4 - 2t3 + 6t2 - 6)

STEP

Pulling out like terms

6.1 Pull out like factors :

17t4 - 2t3 + 6t2 = t2 • (17t2 - 2t + 6)

5 0

3 years ago

You have $4.55 made up of an equal number of pennies, nickles, dimes, quarters and half dollars. How many of each coin do you ha

Papessa [141]

So...

You have 16 quarters. 5 dimes. And 1 nickel. (Half dollars are 2 quarters put together)

I hope this helps!

4 0

3 years ago

A class has 16 boys and 24 girls.Of the 16 boys ,3 are left handed.Of the 24 girls, 2 are left handed.If a student is chosen at

Lena [83]

Answer:

1/8

Step-by-step explanation:

you add 16 and 24 which is 40

there are 5 ppl who are left handed

which is 5/40 which is simplify to 1/8

hope this helps

3 0

3 years ago

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Isabella sells 36 tickets to the school talent show. Each ticket costs $14. How much money does Isabella collect for the tickets

Anon25 [30]

Answer:

isabella is a slat

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers