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timurjin [86]
3 years ago
5

Umesh's teacher is giving a 50-point quiz with 15 questions on it. Some of the questions are multiple-choice, and some of them a

re short answer questions. The multiple-choice problems are worth 3 points each, and the short-answer questions are worth 5 points each. How many questions are multiple-choice?
Mathematics
1 answer:
PIT_PIT [208]3 years ago
7 0

Answer:

10

Step-by-step explanation:

3x10 is 30

4x5 is 20

20+30=50

There are 10 multiple choice questions

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An energy _________________ occurs when energy changes from one type to another type.
ZanzabumX [31]

Answer:

transformation

Step-by-step explanation:

this is when one form of energy forms into another form, and it can be transferred into a new object or location

8 0
2 years ago
What can 39/40 be reduced to
Galina-37 [17]
It can't they have no common factor
5 0
3 years ago
Read 2 more answers
Triangle ABC is reflected across the line y=2x to map onto triangle RST. Select all statements that are true.
Anettt [7]

The reflection transformation in the question is a rigid transformation,

therefore, the image and the preimage are congruent.

The statements that are true are;

  • <u>AB = RS</u>
  • <u>∠ABC ~ ∠RST</u>
  • <u>ΔABC = ΔRST</u>
  • <u>m∠BAC = m∠SRT</u>

Reasons:

The given parameter are;

Triangle ΔABC is reflected across the line 2·X, to map onto triangle ΔRST

Required:

To select the true statements

Solution:

A reflection is a rigid transformation, therefore, the distance between corresponding points on the image and the preimage are equal.

Therefore;

AB = RS

BC = ST

AC = RT

Given that the image formed by a reflection is congruent to the preimage, we have;

ΔABC ≅ ΔRST

∠ABC ≅ ∠RST

m∠ABC = m∠RST by the definition of congruency

∠BCA ≅ ∠STR

m∠BCA = m∠STR by the definition of congruency

∠BAC ≅ ∠SRT

m∠BAC = m∠SRT by the definition of congruency

Therefore, the true statements are;

  • <u>AB = RS</u>; Image formed by rigid transformation
  • <u>∠ABC ~ ∠RST</u>; Definition of similarity
  • <u>ΔABC = ΔRST</u>; By definition of congruency
  • <u>m∠BAC = m∠SRT</u>; by the definition of congruency

Learn more here:

brainly.com/question/11787764

7 0
3 years ago
If g(x)=2x+1 and h(x)=x-2 then find (g-h)(x)
qwelly [4]
(g-h)(x) = 2x+1 -(<span>x-2)
</span>(g-h)(x) = 2x+1 - x + 2
(g-h)(x) = x + 3
4 0
3 years ago
A triangle is 6 centimeters long and 4 centimeters high. What is the area of the triangle?
schepotkina [342]
24cm
You multiply 6*4=24. Hope this helps! Also can u mark brainliest i need one more :)
6 0
3 years ago
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