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Paha777 [63]
3 years ago
8

Simplify the expression -5d+3c-4d

Mathematics
2 answers:
Tasya [4]3 years ago
8 0
Subtract 4d From -5d

Answer:3c-9d
Sever21 [200]3 years ago
5 0

Answer:

4d i think im not sure???hoped it helped?

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Please help, it’s urgent
PtichkaEL [24]

Answer:

x= 102 degrees

Step-by-step explanation:

It is an isosceles triangle, which means that it has two equal sides and angles, so the angles opposite of 3.3 are going to be the same or 39 degrees, which means, 39 + 39 is 78 and 180 - 78 is 102 and x=102 degrees.

5 0
3 years ago
Helppppp please nowwww helpppp
Fantom [35]

Answer:

B

Step-by-step explanation:

m\angle ABZ+m\angle ZBC=m\angle ABC \\ \\ 12x+55=16x+15 \\ \\ 4x=40 \\ \\ x=10 \\ \\ \therefore m\angle ABZ=120^{\circ}

8 0
2 years ago
Someone please help ASAP will give brainliest
ivann1987 [24]

the last one,,,,,,,,,,,,,,,,,,,,,,,,,

4 0
3 years ago
Read 2 more answers
The average age of online consumers a few years ago was 24.1 years. As older individuals gain confidence with the​ Internet, it
love history [14]

Answer:

The correct option is (C).

Step-by-step explanation:

A null hypothesis is a sort of hypothesis used in statistics that intends that no statistical significance exists in a set of given observations.  

It is a hypothesis of no difference.

It is typically the hypothesis a scientist or experimenter will attempt to refute or discard. It is denoted by H₀.

Whereas the alternative hypothesis is a contradicting statement tot he null hypothesis. It is denoted by Hₐ.

In this case we need to test whether the average age of online consumers has increased or not.

From previous data we know that the average age of online consumers a few years ago was 24.1 years.

A one-sample mean test can be used to determine whether the mean age has increased or not.

The hypothesis for the test can be defined as follows:

<em>H₀</em>: The average age of online consumers is 24.1 years, i.e. <em>μ</em> = 24.1.

<em>Hₐ</em>: The average age of online consumers is more than 24.1 years, i.e. <em>μ</em> > 24.1.

Thus, the correct option is (C).

6 0
3 years ago
the British Thermal Unit(BTU) is a unit of energy used globally in air conditioning industries. the number of BTUs needed to coo
7nadin3 [17]

Answer:

<em>32.5 m^2</em>

Step-by-step explanation:

B = 377lw

I will use L for length instead of l.

B = 12,252.5 BTU

w = 5 m

First, we find the length.

12,252.5 = 377(L)(5)

12,252.5 = 1885L

L = 6.5

The length is 6.5 m. The width is 5 m.

A = LW = (6.5 m)(5 m) = 32.5 m^2

4 0
3 years ago
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