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olchik [2.2K]
3 years ago
8

Plz answer all these questions for me I really need help

Mathematics
1 answer:
Ber [7]3 years ago
4 0
A is 400

E I don't know soory
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Activity Question 1 When designing a truss, a truss builder might know the base angle measurement and the length of the tie beam
laiz [17]

Answer:

36.87°  

Step-by-step explanation:

Assume the triangles are as in the diagram below.

∠BAC includes ∠DAE.

The measure of ∠BAE is 36.87°.

7 0
3 years ago
What is the temperature reading on the thermometer
olchik [2.2K]
The reading is 26°c as the small sections r of difference 2
5 0
3 years ago
Yin wants to create figure Y′ that is similar to figure Y. Yin begins by reflecting figure Y across the y-axis.
Sholpan [36]

Answer: B) Dilate by scale factor of 2

====================================================

Explanation:

Your teacher isn't saying this directly, but I'm assuming s/he wants you to find a similar figure that isn't congruent to the original. Informally, your teacher seems to want you to find a figure that is the same shape but not the same size as the original.

If so, then any dilation will shrink or enlarge the image depending on the scale factor. So the new image will not be the same as the old one. In this case, a dilation with scale factor 2 means the new figure is twice as large (each side is twice as long). But the old image is similar to the new image. The angles keep their values and therefore we get the same shape. This is why choice B is the answer. Again this is assuming what I mentioned in the first paragraph.

Choices A, C, and D are all known as rigid transformations and they preserve the same size of the figure. Applying any of those operations will lead to the same figure (just rotated, reflected or shifted somehow). In other words, applying operations A,C, or D will have us get two congruent triangles. If two triangles are congruent, then they are automatically similar, but not vice versa. This is why we can rule out A,C, and D.

3 0
3 years ago
Read 2 more answers
To rent a moving truck for the day, it costs $50 plus $3 for every mile driven. Write an algebraic expression for the cost to re
malfutka [58]

Multiply the cost per mile by number of miles “m” and add that amount to the $50:

Total = 3m + 50

3 0
2 years ago
Read 2 more answers
Question 26 teresa runs 3 miles in 28 minutes. at the same rate, how many miles would she run in 42 minutes?
Leya [2.2K]
The answer is 4.5 miles. Hope it helps!
8 0
3 years ago
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