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musickatia [10]
3 years ago
14

Use the formula x = 3y - 5z to find the value of x, when y = 7 and z = 4

Mathematics
1 answer:
nlexa [21]3 years ago
7 0

Answer:

x=21-5x4

x=21-20

x=1

Step-by-step explanation:

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Find the value of x for which AE¯¯¯¯¯¯¯∥CD¯¯¯¯¯¯¯. answers: 43 31 47 121
suter [353]

Answer:

the answer is 31

Step-by-step explanation:

8 0
3 years ago
Using the figure to the right, if RSTU is a rhombus, find measure RST.
sammy [17]

Given:

In rhombus RSTU, m\angle RUV=(10x-23)^\circ and m\angle TUV=(3x+19)^\circ.

To find:

The m\angle RST.

Solution:

We know that, diagonals of a rhombus are angle bisector. So,

m\angle RUV=m\angle TUV

(10x-23)^\circ=(3x+19)^\circ

10x-23=3x+19

Isolating variable terms, we get

10x-3x=23+19

7x=42

Divide both sides by 7.

x=\dfrac{42}{7}

x=6

Now,

m\angle RUV=(10x-23)^\circ

m\angle RUV=(10(6)-23)^\circ

m\angle RUV=(60-23)^\circ

m\angle RUV=37^\circ

And,

m\angle TUV=(3x+19)^\circ.

m\angle TUV=(3(6)+19)^\circ

m\angle TUV=(18+19)^\circ

m\angle TUV=37^\circ

Now,

m\angle RUT=m\angle RUV+m\angle TUV

m\angle RUT=37^\circ+37^\circ

m\angle RUT=74^\circ

We know that opposite angles of a rhombus are equal.

m\angle RST=m\angle RUT

m\angle RST=74^\circ

Therefore, the measure of angle RST is 74^\circ.

3 0
3 years ago
Given AB is a diameter, find the measure of
Sonbull [250]

Answer:

Angle BCA = 90

Step-by-step explanation:

A triangle inscribed inside of a circle using the diameter as it's hypotenuse is a right triangle

Where the angle opposite of the hypotenuse ( or diameter ) is the right angle

Angle BCA is the angle opposite of the diameter

Hence BCA = 90

7 0
3 years ago
Which two triangles are congruent? Complete the congruence statement. ​
anygoal [31]

Answer:

△ VUW = △ KJI

Step-by-step explanation:

In △ VUW, △ KJI,

UW = JI ( Sides are equal )

∠ VUW = ∠ KJI ( From the diagram )

∠ UWV = ∠ KIJ ( From the diagram )

By ASA rule of congruency,

△ VUW is congruent to △ KJI.

8 0
3 years ago
HELP! I NEED MORE THAN 5 SENTENCES!!
Ksenya-84 [330]

Answer:

I would assess what type of learner my student was by seeing which form of teaching they respond best to. I would try to cover all 7 types of learning by going through different examples. I would lead by explaining the concept and then start to work through at least 3 examples. I would then ask them to finish certain parts and eventually watch them work one out on their own. One of the key things I would make sure to do is personalize the learning experience. I would offer stories and situations that they may be able to relate to or remember when completing the problem.

4 0
3 years ago
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