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2 years ago

Please help me with this one ☝️

Mathematics

1 answer:

Olin [163]2 years ago

8 0

D is the answer! Domain and Range

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What is the length of DE

HACTEHA [7]

Answer:

DE = 20units

Step-by-step explanation:

In Δ ABC,

angle A is congruent to angle B.... (given)

therefore, ΔABC is an isoceles triangle.

therefore, CA = CB..... (side opposite to congruent angles are congruent in an isoceles triangle)

therefore, CB = 4 units

In ΔCDE,

angle D is congruent to angle E.... (given)

therefore, ΔCDE is an isoceles triangle.

therefore, CD = CE

therefore, CD = 8 units

ΔCDE ~ ΔCBA

therefore,

$\frac{cd}{cb} = \frac{ce}{ca} = \frac{de}{ab} \\ therefore \: \frac{8}{4} = \frac{8}{4} = \frac{de}{10 } \\ therefore \\ \frac{2}{1 } = \frac{de}{10 } \\ de \: = 2 \times 10 = 20units$

8 0

3 years ago

What’s the answer????

barxatty [35]

Answer:

i dont know if u know the equation for volume but it is length times width times height SO you would multiply 8.25 times 3 times 5

5 times 3 is 15 so u then multiply 8.25 times 15

sorry if u wanted the full answer

4 0

3 years ago

Step 3: Construct an angle and a perpendicular bisector.

Yuliya22 [10]

Answer:

huh

Step-by-step explanation:

5 0

2 years ago

Find the value of x. A. 60 B. 50 C. 40 D. 30

garri49 [273]

We can see that two sides of that triangle area equal

so, their corresponding angle will also be equal

now, we know that

sum of all angles in any triangle is always 180

so, we can get equation as

$x+100+x=180$

now, we can solve for x

$2x+100=180$

$2x=80$

$x=40$

so, option-C..............Answer

8 0

3 years ago

Read 2 more answers

For the polynomial below, find F(-3) F(-3)= -4x^2+3x-1

Elodia [21]

$f(-3)=-4\cdot(-3)^2+3\cdot(-3)-1=-4\cdot9-9-1=-36-10=-46$

4 0

3 years ago