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Harrizon [31]
3 years ago
9

PLEASE HELP..MATH 8TH GRADE​

Mathematics
2 answers:
jolli1 [7]3 years ago
8 0

Answer. z = ± √10 = ± 3.1623

Dmitriy789 [7]3 years ago
4 0
Z = -16 the steps are in the photo

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I need help I don't understand
lianna [129]
1. 
   a. 120+80+50+150= 400
2. 
  b. 250 of each game should the store order 
3. this year 60 of each game should the  store order 
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a. 240 ounces of sugar water you need
b. none
5 0
3 years ago
The model U.N has 98 members. There are 36 more boys than girls in the model U.N.
Oduvanchick [21]

Answer:

The answer is 62

Step-by-step explanation:

Sorry, I meant to add here. You do 98-36 and you get 62.

4 0
3 years ago
Helloo!!! please help me on this !!!!
ivann1987 [24]

It is given that ️PQR & ️UVW are congruent to each other. According to CPCT, the corresponding angles in 2 triangles willl have the same measure. So, ∠R = ∠W, i.e, (10x - 18)° = 8x°

\mathfrak{10x - 18 = 8x}

\mathfrak{10x - 8x = 18}

\mathfrak{2x = 18}

\mathfrak{x = \dfrac{18}{2}}

\underline{\mathfrak{x = 9}}

Measure of ∠R :

\mathfrak{8x}

\mathfrak{8(9)}

\boxed{\mathfrak{72^{\circ}}}

 ღ ꪑ꠸᥅ꫀꪊ

7 0
2 years ago
Find a nonzero vector orthogonal to the plane through the points: ????=(0,0,1), ????=(−2,3,4), ????=(−2,2,0).
ser-zykov [4K]

Answer:

The nonzero vector orthogonal to the plane is <-9,-8,2>.

Step-by-step explanation:

Consider the given points are P=(0,0,1), Q=(−2,3,4), R=(−2,2,0).

\overrightarrow {PQ}==

\overrightarrow {PR}==

The nonzero vector orthogonal to the plane through the points P,Q, and R is

\overrightarrow n=\overrightarrow {PQ}\times \overrightarrow {PR}

\overrightarrow n=\det \begin{pmatrix}i&j&k\\ \:\:\:\:\:-2&3&3\\ \:\:\:\:\:-2&2&-1\end{pmatrix}

Expand along row 1.

\overrightarrow n=i\det \begin{pmatrix}3&3\\ 2&-1\end{pmatrix}-j\det \begin{pmatrix}-2&3\\ -2&-1\end{pmatrix}+k\det \begin{pmatrix}-2&3\\ -2&2\end{pmatrix}

\overrightarrow n=i(-9)-j(8)+k(2)

\overrightarrow n=-9i-8j+2k

\overrightarrow n=

Therefore, the nonzero vector orthogonal to the plane is <-9,-8,2>.

8 0
3 years ago
Eric and Carly each made a bowl of punch. Carly used 5 times as much lemonade as Eric did. If Eric used 1/4 of a
Viktor [21]

Answer:

carly used 1 1/4 cups of lemonade

Step-by-step explanation:

I think that is simplified

8 0
3 years ago
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