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kherson [118]
1 year ago
7

This is difficult for me pls help out

Mathematics
1 answer:
Cloud [144]1 year ago
8 0

Answer:

(-0.4)(-2)+(-0.4)(-9)

Step-by-step explanation:

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Hiya !
Aleksandr [31]

Answer:

root 25

Step-by-step explanation:

root 25 is 5, and every other number may not be able to be written as a whole number (please give brainliest)

8 0
2 years ago
Read 2 more answers
The perpendicular bisectors of sides AC and BC of △ABC intersect side AB
tiny-mole [99]

The measure of ∠ACB will be 110°

<u><em>Explanation</em></u>

According to the diagram below, DE and DF are the perpendicular bisectors of AC and BC respectively and they intersect side AB at points P and Q respectively.

So, AE=CE and CF= BF

Now, <u>according to the SAS postulate</u>, ΔAPE and ΔCPE are congruent each other. Also, ΔCFQ and ΔBFQ are congruent to each other.

That means, ∠PCE = ∠PAE  and ∠FCQ = ∠FBQ

As ∠CPQ = 78° , so  ∠PCE + ∠PAE = 78°  or,  ∠PCE = \frac{78}{2}= 39°                                    and as ∠CQP = 62° , so ∠FCQ + ∠FBQ = 62° or, ∠FCQ = \frac{62}{2}=31°

Now, in triangle CPQ,  ∠PCQ = 180°-(78° + 62°) = 180° - 140° = 40°

Thus, ∠ACB = ∠PCE + ∠PCQ + ∠FCQ = 39° + 40° + 31° = 110°



7 0
3 years ago
One of the smallest species of insects in the world is cataphractus cinctus, a type of wasp. the average mass of this wasp is 5u
ivolga24 [154]

One of the smallest species of insects in the world is cataphractus cinctus, a type of wasp. the average mass of this wasp is 5 μg.

1 μg or microgram is 10^-6 grams

5 μg * (10^-6/ 1 μg) = 5.0 × 10^-6 grams

5 0
3 years ago
What are the solutions of the equation x6 – 9x3 + 8 = 0? Use u substitution to solve. x = –1 and x = –2 x = 1 and x = 2
malfutka [58]
Let u=x^3
the original equation becomes: u^2-9u+8=0
factor this quadratic equation: (u-8)(u-1)=0
u=8, or u=1
that means x^3=8 or x^3=1
x=2  x=1
8 0
3 years ago
Read 2 more answers
The sum of two numbers it 226. their differences is 200. what are the numbers?
jekas [21]
<span>To get the bigger number, divide by 2 the sum of the given sum of the numbers and their difference. In this case-
(226 + 200)/2 = 426/2 = 213.
To get the smaller number, divide by 2 the difference of the given sum of the numbers and their difference. In this case -
(226 - 200)/2 = 26/2 =13.
The two numbers are 213 and 13.
The bigger number is 213</span>
7 0
3 years ago
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